docs: mention direnv in README bootstrap section

chore: add .envrc for direnv integration
docs: add README with bootstrap, run and test instructions
2026-03-27 23:30:41 +01:00 · 2026-03-27 23:28:09 +01:00 · 2026-03-27 23:27:15 +01:00 · 2026-03-27 23:25:07 +01:00 · 2026-03-27 18:06:55 +00:00 · 2026-03-27 18:06:49 +00:00
16 changed files with 1674 additions and 390 deletions
--- a/.envrc
+++ b/.envrc
@@ -0,0 +1 @@
+use flake
--- a/.gitea/workflows/ci.yaml
+++ b/.gitea/workflows/ci.yaml
@@ -0,0 +1,30 @@
+name: CI
+
+on:
+  push:
+    branches: [master]
+  pull_request:
+    branches: [master]
+
+jobs:
+  build-and-test:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Set up JDK 16
+        uses: actions/setup-java@v4
+        with:
+          java-version: '16'
+          distribution: 'temurin'
+
+      - name: Build and test with coverage
+        run: ./mvnw verify --batch-mode
+
+      - name: Upload coverage report
+        if: always()
+        uses: https://gitea.com/actions/gitea-upload-artifact@v4
+        with:
+          name: jacoco-report
+          path: target/site/jacoco/
--- a/.mvn/wrapper/maven-wrapper.properties
+++ b/.mvn/wrapper/maven-wrapper.properties
@@ -0,0 +1,3 @@
+wrapperVersion=3.3.4
+distributionType=only-script
+distributionUrl=https://repo.maven.apache.org/maven2/org/apache/maven/apache-maven/3.9.12/apache-maven-3.9.12-bin.zip
--- a/README.md
+++ b/README.md
@@ -0,0 +1,54 @@
+# new-shapes
+
+A shape editor desktop application built with Java Swing. Supports rectangles, circles, triangles, text, shape collections, resize handles, and export to HTML/SVG.
+
+## Prerequisites
+
+- JDK >= 16 (project targets Java 16)
+- A graphical display (X11/Wayland) since this is a Swing GUI application
+
+## Bootstrap
+
+### With Nix (recommended)
+
+If you have [direnv](https://direnv.net/) installed, the environment activates automatically:
+
+```sh
+direnv allow   # one-time, then auto-activates on cd
+```
+
+Otherwise, enter the dev shell manually:
+
+```sh
+nix develop
+```
+
+Both provide JDK 17 and Maven 3.9.x preconfigured. No other setup needed.
+
+### Without Nix
+
+Install JDK 16+ and use the bundled Maven wrapper — no separate Maven installation required:
+
+```sh
+./mvnw --version   # downloads Maven 3.9.12 on first run
+```
+
+## Run the application
+
+```sh
+./mvnw compile exec:java -Dexec.mainClass="ovh.gasser.newshapes.App"
+```
+
+## Run tests
+
+```sh
+./mvnw test
+```
+
+To run the full verification pipeline (compile, test, JaCoCo coverage check with 50% minimum line coverage):
+
+```sh
+./mvnw verify
+```
+
+Coverage reports are generated in `target/site/jacoco/`.
--- a/TESTING_HANDOFF.md
+++ b/TESTING_HANDOFF.md
@@ -1,388 +0,0 @@
-# Testing Strategy Handoff Document
-
-**Project:** shapes - Java Shape Editor  
-**Date:** March 27, 2026  
-**Author:** AI Coding Orchestrator  
-
---
-
-## 1. Problem Statement
-
-The objective was to explore the project, identify gaps in test coverage, and propose a testing strategy to improve code quality and reliability.
-
-### Initial Questions
- What is the current test coverage?
- What classes/packages are tested vs. untested?
- What is the recommended testing approach moving forward?
-
---
-
-## 2. Project Overview
-
-### Tech Stack
- **Language:** Java 16
- **Build Tool:** Maven
- **Testing Framework:** JUnit 5 (Jupiter)
- **Logging:** SLF4J + Logback
-
-### Package Structure
-```
-src/main/java/ovh/gasser/newshapes/
-├── App.java                    # Main application entry
-├── Selection.java              # Selection management
-├── ShapeVisitor.java           # Visitor interface
-├── SVGExporter.java            # SVG export logic
-├── HTMLExporter.java           # HTML export logic
-├── shapes/
-│   ├── Shape.java              # Shape interface
-│   ├── AbstractShape.java      # Base abstract class
-│   ├── SRectangle.java         # Rectangle shape
-│   ├── SCircle.java            # Circle shape
-│   ├── STriangle.java          # Triangle shape
-│   ├── SText.java              # Text shape
-│   ├── SCollection.java        # Shape collection (composite)
-│   └── ResizeHandle.java       # Resize handle enum
-├── attributes/
-│   ├── Attributes.java         # Base attributes interface
-│   ├── SelectionAttributes.java # Selection state
-│   └── ColorAttributes.java     # Fill/stroke colors
-├── ui/
-│   ├── Controller.java         # Main controller
-│   ├── ShapesView.java        # View component
-│   ├── ShapeDraftman.java     # Drawing component
-│   ├── listeners/
-│   │   ├── MenuAddListener.java
-│   │   ├── MenuEditListener.java
-│   │   └── SelectionListener.java
-│   └── visitors/
-│       ├── SVGDraftman.java    # SVG visitor implementation
-│       └── HTMLDraftman.java   # HTML visitor implementation
-└── util/
-    └── Streamable.java         # Stream support interface
-```
-
---
-
-## 3. Initial Exploration Findings
-
-### 3.1 Existing Test Coverage (Before Work)
-
-| Test File | Coverage |
-|-----------|----------|
-| AbstractShapeTest.java | Partial (6 tests) |
-| SRectangleTest.java | ✅ |
-| SCircleTest.java | ✅ |
-| STriangleTest.java | ✅ |
-| STextTest.java | ✅ |
-| SVGExporterTest.java | ✅ |
-| HTMLExporterTest.java | ✅ |
-
-**Total: 36 tests across 7 test classes**
-
-### 3.2 Classes with NO Tests
-
-| Priority | Class | Reason for Testing Need |
-|----------|-------|------------------------|
-| 🔴 High | SCollection | Core composite pattern, child management, bounds calculation |
-| 🔴 High | Selection | Critical selection management, listener notifications |
-| 🔴 High | Streamable | Interface with default method used throughout |
-| 🟡 Medium | SelectionAttributes | Core data type |
-| 🟡 Medium | ColorAttributes | Core data type |
-| 🟡 Medium | SVGDraftman | Complex string generation |
-| 🟡 Medium | HTMLDraftman | Complex string generation |
-| 🟢 Low | Controller | UI logic, integration points |
-| 🟢 Low | ShapeDraftman | UI rendering |
-| 🟢 Low | ShapesView | UI component |
-
-### 3.3 Issues in Existing Tests
-
-1. **Shallow coverage** - Most shape tests only verify creation and bounds
-2. **No edge cases** - Missing: null handling, negative coordinates, zero dimensions
-3. **Reflection usage** - SCircleTest uses reflection to check color (fragile)
-4. **No contract tests** - Shape interface has no tests verifying invariants
-5. **Inconsistent clone testing** - Some tests verify deep copy, others don't
-
---
-
-## 4. Work Completed
-
-### 4.1 Tests Added
-
-Three new test files created with 21 new tests:
-
-#### SCollectionTest.java (12 tests)
-```java
-src/test/java/ovh/gasser/newshapes/shapes/SCollectionTest.java
-```
-
-| Test Method | Purpose |
-|-------------|---------|
-| testCreateWithShapes | Verify SCollection.of() creates collection with shapes |
-| testAdd | Verify add() adds a shape to the collection |
-| testRemove | Verify remove() removes a shape from the collection |
-| testIterator | Verify iterator() iterates over children |
-| testStream | Verify stream() returns a stream of children |
-| testGetBoundsEmptyCollection | Verify getBounds() returns Rectangle(WIN_SIZE) when empty |
-| testGetBoundsWithChildren | Verify getBounds() returns union of all children's bounds |
-| testTranslate | Verify translate() moves all children |
-| testClone | Verify clone() creates deep copy with SelectionAttributes |
-| testToString | Verify toString() contains SCollection |
-| testAddAttributesPropagatesToChildren | Verify ColorAttributes are propagated to children |
-| testGetAttributesReturnsChildColor | Verify getAttributes(ColorAttributes.ID) returns first child's color |
-
-#### SelectionTest.java (7 tests)
-```java
-src/test/java/ovh/gasser/newshapes/SelectionTest.java
-```
-
-| Test Method | Purpose |
-|-------------|---------|
-| testIsEmptyInitially | Verify isEmpty() returns true initially |
-| testAdd | Verify add() adds shape and marks it selected |
-| testAddAll | Verify addAll() adds multiple shapes |
-| testClear | Verify clear() removes all shapes and marks them unselected |
-| testGetSelectedShapesReturnsCopy | Verify getSelectedShapes() returns immutable copy |
-| testAddListener | Verify addListener() and listener notification |
-| testNullAddAllDoesNothing | Verify addAll(null) doesn't throw |
-
-#### StreamableTest.java (2 tests)
-```java
-src/test/java/ovh/gasser/newshapes/util/StreamableTest.java
-```
-
-| Test Method | Purpose |
-|-------------|---------|
-| testStreamReturnsStreamOfElements | Verify stream() returns all elements |
-| testStreamEmptyCollection | Verify stream() works on empty collection |
-
-### 4.2 Test Results
-
-```
-Tests run: 57, Failures: 0, Errors: 0, Skipped: 0
-BUILD SUCCESS
-```
-
---
-
-## 5. Oracle Strategic Review
-
-Consulted @oracle for architectural guidance on testing strategy.
-
-### 5.1 Assessment
-
-**Overall Grade: B- (Adequate but shallow)**
-
-| Area | Coverage | Quality |
-|------|----------|---------|
-| Shapes | ~60% | Basic happy-path only |
-| SCollection | Good | Decent coverage including edge cases |
-| Selection | Good | Tests core behavior + listeners |
-| Exporters | Good | Structure + format validation |
-| AbstractShape | Good | Tests polymorphic behavior |
-
-### 5.2 Recommended Priority
-
-| Priority | Area | Rationale |
-|----------|------|-----------|
-| P0 | Attributes tests | SelectionAttributes, ColorAttributes - core data types |
-| P1 | Visitor tests | SVGDraftman/HTMLDraftman - complex string generation |
-| P1 | contains(Point) | Critical hit-testing behavior |
-| P2 | UI tests | Controller integration points |
-| P2 | Edge cases | Zero dimensions, negative coords, null handling |
-| P3 | ResizeHandle | All 8 handles should be tested |
-
-### 5.3 CI/CD Recommendations
-
-1. **Add JaCoCo** - Enforce 80% code coverage
-2. **Parallel tests** - Enable parallel test execution in surefire
-3. **GitHub Actions** - Add CI pipeline
-
---
-
-## 6. Visitor Testing Approach (@oracle)
-
-### 6.1 Why Direct Visitor Tests?
-
-Current exporter tests obscure visitor logic in the full pipeline. Direct tests provide:
- **Isolation** - Tests fail at specific visitor method
- **Faster feedback** - No complex shape construction needed
- **Edge case targeting** - Test specific attribute combinations
-
-### 6.2 Recommended Structure
-
-```
-src/test/java/ovh/gasser/newshapes/ui/visitors/
-├── SVGDraftmanTest.java    # Direct visitor tests
-└── HTMLDraftmanTest.java
-```
-
-### 6.3 Assertions Strategy
-
-| Use Exact Match For | Use Contains/Partial For |
-|---------------------|---------------------------|
-| Element tags (`<rect>`, `<circle>`) | Dynamic values (coords, colors) |
-| Fixed attributes (xmlns, DOCTYPE) | CSS output ordering |
-| Structure markers | |
-
-### 6.4 Edge Cases to Cover
-
- Null ColorAttributes
- Filled only / stroked only / both / neither
- Empty collections
- Nested SCollection
- Text font styles (ITALIC, BOLD, ITALIC+BOLD)
-
-### 6.5 Bug Found 🐛
-
-**HTMLDraftman.visitTriangle()** line 69:
-```java
-htmlOutput.printf("<div class=\"triangle%d\"></div>\n", this.hashCode()); // BUG
-```
-Should be `sTriangle.hashCode()`. Direct visitor tests would catch this.
-
---
-
-## 7. Remaining Work
-
-### 7.1 High Priority
-
-| # | Task | Estimated Effort |
-|---|------|-----------------|
-| 1 | Add SelectionAttributes test | 1 hour |
-| 2 | Add ColorAttributes test | 1 hour |
-| 3 | Create ShapeContractTest (parameterized) | 2 hours |
-
-### 7.2 Medium Priority
-
-| # | Task | Estimated Effort |
-|---|------|-----------------|
-| 4 | Add SVGDraftmanTest | 2 hours |
-| 5 | Add HTMLDraftmanTest | 2 hours |
-| 6 | Add contains(Point) tests | 2-3 hours |
-
-### 7.3 Lower Priority
-
-| # | Task | Estimated Effort |
-|---|------|-----------------|
-| 7 | Add ResizeHandle tests | 1 hour |
-| 8 | Add edge case tests (null, negative, zero) | 2 hours |
-| 9 | Fix HTMLDraftman.visitTriangle() bug | 30 min |
-| 10 | Set up JaCoCo + CI | 1 hour |
-
---
-
-## 8. Appendix
-
-### A. Current Test Files
-
-```
-src/test/java/ovh/gasser/newshapes/
-├── shapes/
-│   ├── AbstractShapeTest.java      # 6 tests
-│   ├── SRectangleTest.java         # 4 tests
-│   ├── SCircleTest.java            # 5 tests
-│   ├── STriangleTest.java          # 3 tests
-│   ├── STextTest.java              # 5 tests
-│   └── SCollectionTest.java        # 12 tests (NEW)
-├── exporters/
-│   ├── SVGExporterTest.java        # 7 tests
-│   └── HTMLExporterTest.java        # 6 tests
-├── SelectionTest.java              # 7 tests (NEW)
-└── util/
-    └── StreamableTest.java          # 2 tests (NEW)
-```
-
-### B. Maven Dependencies
-
-```xml
-<dependency>
-    <groupId>org.junit.jupiter</groupId>
-    <artifactId>junit-jupiter-api</artifactId>
-    <version>5.10.0</version>
-    <scope>test</scope>
-</dependency>
-<dependency>
-    <groupId>org.junit.jupiter</groupId>
-    <artifactId>junit-jupiter-engine</artifactId>
-    <version>5.10.0</version>
-    <scope>test</scope>
-</dependency>
-```
-
-### C. JaCoCo Configuration (Recommended)
-
-```xml
-<plugin>
-    <groupId>org.jacoco</groupId>
-    <artifactId>jacoco-maven-plugin</artifactId>
-    <version>0.8.11</version>
-    <executions>
-        <execution>
-            <goals>
-                <goal>prepare-agent</goal>
-                <goal>report</goal>
-                <goal>check</goal>
-            </goals>
-        </execution>
-    </executions>
-    <configuration>
-        <rules>
-            <rule>
-                <element>CLASS</element>
-                <limits>
-                    <limit>
-                        <counter>LINE</counter>
-                        <value>COVEREDRATIO</value>
-                        <minimum>0.80</minimum>
-                    </limit>
-                </limits>
-            </rule>
-        </rules>
-    </configuration>
-</plugin>
-```
-
-### D. Shape Contract Test (Recommended Pattern)
-
-```java
-class ShapeContractTest {
-    @ParameterizedTest
-    @MethodSource("ovh.gasser.newshapes.shapes.ShapeFactory#allShapes")
-    void testCloneIsIndependent(Shape s) { ... }
-    
-    @ParameterizedTest
-    @MethodSource("ovh.gasser.newshapes.shapes.ShapeFactory#allShapes")
-    void testGetBoundsReturnsCopy(Shape s) { ... }
-    
-    @ParameterizedTest
-    @MethodSource("ovh.gasser.newshapes.shapes.ShapeFactory#allShapes")
-    void testTranslateMutatesInPlace(Shape s) { ... }
-}
-```
-
---
-
-## 9. Summary
-
-| Metric | Before | After |
-|--------|--------|-------|
-| Total Tests | 36 | 57 |
-| Test Classes | 7 | 10 |
-| Core Classes Tested | 8 | 11 |
-| Coverage Grade | C | B- |
-
-**Key Achievements:**
- Identified and filled gaps in core business logic (SCollection, Selection, Streamable)
- Received architectural guidance from @oracle
- Discovered potential bug in HTMLDraftman
- Established clear roadmap for remaining work
-
-**Next Steps:**
-1. Add Attributes tests (SelectionAttributes, ColorAttributes)
-2. Add visitor tests (SVGDraftman, HTMLDraftman)
-3. Add Shape contract tests
-4. Set up CI/CD with JaCoCo coverage gate
-
---
-
-*End of Handoff Document*
--- a/flake.lock
+++ b/flake.lock
@@ -0,0 +1,27 @@
+{
+  "nodes": {
+    "nixpkgs": {
+      "locked": {
+        "lastModified": 1774386573,
+        "narHash": "sha256-4hAV26quOxdC6iyG7kYaZcM3VOskcPUrdCQd/nx8obc=",
+        "owner": "nixos",
+        "repo": "nixpkgs",
+        "rev": "46db2e09e1d3f113a13c0d7b81e2f221c63b8ce9",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nixos",
+        "ref": "nixos-unstable",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "root": {
+      "inputs": {
+        "nixpkgs": "nixpkgs"
+      }
+    }
+  },
+  "root": "root",
+  "version": 7
+}
--- a/flake.nix
+++ b/flake.nix
@@ -0,0 +1,48 @@
+{
+  description = "new-shapes - Java Swing shape editor";
+
+  inputs.nixpkgs.url = "github:nixos/nixpkgs/nixos-unstable";
+
+  outputs = { self, nixpkgs }:
+    let
+      # JDK 16 (project target) is non-LTS and unavailable in nixpkgs.
+      # JDK 17 (LTS) is fully backward-compatible with --source 16 --target 16.
+      javaVersion = 17;
+
+      supportedSystems = [ "x86_64-linux" "aarch64-linux" "x86_64-darwin" "aarch64-darwin" ];
+
+      forEachSystem = f:
+        nixpkgs.lib.genAttrs supportedSystems (system: f {
+          pkgs = import nixpkgs {
+            inherit system;
+            overlays = [ self.overlays.default ];
+          };
+        });
+    in
+    {
+      overlays.default = final: prev:
+        let
+          jdk = prev."jdk${toString javaVersion}";
+        in
+        {
+          inherit jdk;
+          # Override Maven to use the same JDK version
+          maven = prev.maven.override { jdk_headless = jdk; };
+        };
+
+      devShells = forEachSystem ({ pkgs }: {
+        default = pkgs.mkShell {
+          packages = with pkgs; [
+            jdk
+            maven
+          ];
+
+          shellHook = ''
+            echo "new-shapes dev shell"
+            echo "  Java: $(java -version 2>&1 | head -1)"
+            echo "  Maven: $(mvn -version 2>&1 | head -1)"
+          '';
+        };
+      });
+    };
+}
--- a/295
+++ b/295
@@ -0,0 +1,295 @@
+#!/bin/sh
+# ----------------------------------------------------------------------------
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#    http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
+# ----------------------------------------------------------------------------
+
+# ----------------------------------------------------------------------------
+# Apache Maven Wrapper startup batch script, version 3.3.4
+#
+# Optional ENV vars
+# -----------------
+#   JAVA_HOME - location of a JDK home dir, required when download maven via java source
+#   MVNW_REPOURL - repo url base for downloading maven distribution
+#   MVNW_USERNAME/MVNW_PASSWORD - user and password for downloading maven
+#   MVNW_VERBOSE - true: enable verbose log; debug: trace the mvnw script; others: silence the output
+# ----------------------------------------------------------------------------
+
+set -euf
+[ "${MVNW_VERBOSE-}" != debug ] || set -x
+
+# OS specific support.
+native_path() { printf %s\\n "$1"; }
+case "$(uname)" in
+CYGWIN* | MINGW*)
+  [ -z "${JAVA_HOME-}" ] || JAVA_HOME="$(cygpath --unix "$JAVA_HOME")"
+  native_path() { cygpath --path --windows "$1"; }
+  ;;
+esac
+
+# set JAVACMD and JAVACCMD
+set_java_home() {
+  # For Cygwin and MinGW, ensure paths are in Unix format before anything is touched
+  if [ -n "${JAVA_HOME-}" ]; then
+    if [ -x "$JAVA_HOME/jre/sh/java" ]; then
+      # IBM's JDK on AIX uses strange locations for the executables
+      JAVACMD="$JAVA_HOME/jre/sh/java"
+      JAVACCMD="$JAVA_HOME/jre/sh/javac"
+    else
+      JAVACMD="$JAVA_HOME/bin/java"
+      JAVACCMD="$JAVA_HOME/bin/javac"
+
+      if [ ! -x "$JAVACMD" ] || [ ! -x "$JAVACCMD" ]; then
+        echo "The JAVA_HOME environment variable is not defined correctly, so mvnw cannot run." >&2
+        echo "JAVA_HOME is set to \"$JAVA_HOME\", but \"\$JAVA_HOME/bin/java\" or \"\$JAVA_HOME/bin/javac\" does not exist." >&2
+        return 1
+      fi
+    fi
+  else
+    JAVACMD="$(
+      'set' +e
+      'unset' -f command 2>/dev/null
+      'command' -v java
+    )" || :
+    JAVACCMD="$(
+      'set' +e
+      'unset' -f command 2>/dev/null
+      'command' -v javac
+    )" || :
+
+    if [ ! -x "${JAVACMD-}" ] || [ ! -x "${JAVACCMD-}" ]; then
+      echo "The java/javac command does not exist in PATH nor is JAVA_HOME set, so mvnw cannot run." >&2
+      return 1
+    fi
+  fi
+}
+
+# hash string like Java String::hashCode
+hash_string() {
+  str="${1:-}" h=0
+  while [ -n "$str" ]; do
+    char="${str%"${str#?}"}"
+    h=$(((h * 31 + $(LC_CTYPE=C printf %d "'$char")) % 4294967296))
+    str="${str#?}"
+  done
+  printf %x\\n $h
+}
+
+verbose() { :; }
+[ "${MVNW_VERBOSE-}" != true ] || verbose() { printf %s\\n "${1-}"; }
+
+die() {
+  printf %s\\n "$1" >&2
+  exit 1
+}
+
+trim() {
+  # MWRAPPER-139:
+  #   Trims trailing and leading whitespace, carriage returns, tabs, and linefeeds.
+  #   Needed for removing poorly interpreted newline sequences when running in more
+  #   exotic environments such as mingw bash on Windows.
+  printf "%s" "${1}" | tr -d '[:space:]'
+}
+
+scriptDir="$(dirname "$0")"
+scriptName="$(basename "$0")"
+
+# parse distributionUrl and optional distributionSha256Sum, requires .mvn/wrapper/maven-wrapper.properties
+while IFS="=" read -r key value; do
+  case "${key-}" in
+  distributionUrl) distributionUrl=$(trim "${value-}") ;;
+  distributionSha256Sum) distributionSha256Sum=$(trim "${value-}") ;;
+  esac
+done <"$scriptDir/.mvn/wrapper/maven-wrapper.properties"
+[ -n "${distributionUrl-}" ] || die "cannot read distributionUrl property in $scriptDir/.mvn/wrapper/maven-wrapper.properties"
+
+case "${distributionUrl##*/}" in
+maven-mvnd-*bin.*)
+  MVN_CMD=mvnd.sh _MVNW_REPO_PATTERN=/maven/mvnd/
+  case "${PROCESSOR_ARCHITECTURE-}${PROCESSOR_ARCHITEW6432-}:$(uname -a)" in
+  *AMD64:CYGWIN* | *AMD64:MINGW*) distributionPlatform=windows-amd64 ;;
+  :Darwin*x86_64) distributionPlatform=darwin-amd64 ;;
+  :Darwin*arm64) distributionPlatform=darwin-aarch64 ;;
+  :Linux*x86_64*) distributionPlatform=linux-amd64 ;;
+  *)
+    echo "Cannot detect native platform for mvnd on $(uname)-$(uname -m), use pure java version" >&2
+    distributionPlatform=linux-amd64
+    ;;
+  esac
+  distributionUrl="${distributionUrl%-bin.*}-$distributionPlatform.zip"
+  ;;
+maven-mvnd-*) MVN_CMD=mvnd.sh _MVNW_REPO_PATTERN=/maven/mvnd/ ;;
+*) MVN_CMD="mvn${scriptName#mvnw}" _MVNW_REPO_PATTERN=/org/apache/maven/ ;;
+esac
+
+# apply MVNW_REPOURL and calculate MAVEN_HOME
+# maven home pattern: ~/.m2/wrapper/dists/{apache-maven-<version>,maven-mvnd-<version>-<platform>}/<hash>
+[ -z "${MVNW_REPOURL-}" ] || distributionUrl="$MVNW_REPOURL$_MVNW_REPO_PATTERN${distributionUrl#*"$_MVNW_REPO_PATTERN"}"
+distributionUrlName="${distributionUrl##*/}"
+distributionUrlNameMain="${distributionUrlName%.*}"
+distributionUrlNameMain="${distributionUrlNameMain%-bin}"
+MAVEN_USER_HOME="${MAVEN_USER_HOME:-${HOME}/.m2}"
+MAVEN_HOME="${MAVEN_USER_HOME}/wrapper/dists/${distributionUrlNameMain-}/$(hash_string "$distributionUrl")"
+
+exec_maven() {
+  unset MVNW_VERBOSE MVNW_USERNAME MVNW_PASSWORD MVNW_REPOURL || :
+  exec "$MAVEN_HOME/bin/$MVN_CMD" "$@" || die "cannot exec $MAVEN_HOME/bin/$MVN_CMD"
+}
+
+if [ -d "$MAVEN_HOME" ]; then
+  verbose "found existing MAVEN_HOME at $MAVEN_HOME"
+  exec_maven "$@"
+fi
+
+case "${distributionUrl-}" in
+*?-bin.zip | *?maven-mvnd-?*-?*.zip) ;;
+*) die "distributionUrl is not valid, must match *-bin.zip or maven-mvnd-*.zip, but found '${distributionUrl-}'" ;;
+esac
+
+# prepare tmp dir
+if TMP_DOWNLOAD_DIR="$(mktemp -d)" && [ -d "$TMP_DOWNLOAD_DIR" ]; then
+  clean() { rm -rf -- "$TMP_DOWNLOAD_DIR"; }
+  trap clean HUP INT TERM EXIT
+else
+  die "cannot create temp dir"
+fi
+
+mkdir -p -- "${MAVEN_HOME%/*}"
+
+# Download and Install Apache Maven
+verbose "Couldn't find MAVEN_HOME, downloading and installing it ..."
+verbose "Downloading from: $distributionUrl"
+verbose "Downloading to: $TMP_DOWNLOAD_DIR/$distributionUrlName"
+
+# select .zip or .tar.gz
+if ! command -v unzip >/dev/null; then
+  distributionUrl="${distributionUrl%.zip}.tar.gz"
+  distributionUrlName="${distributionUrl##*/}"
+fi
+
+# verbose opt
+__MVNW_QUIET_WGET=--quiet __MVNW_QUIET_CURL=--silent __MVNW_QUIET_UNZIP=-q __MVNW_QUIET_TAR=''
+[ "${MVNW_VERBOSE-}" != true ] || __MVNW_QUIET_WGET='' __MVNW_QUIET_CURL='' __MVNW_QUIET_UNZIP='' __MVNW_QUIET_TAR=v
+
+# normalize http auth
+case "${MVNW_PASSWORD:+has-password}" in
+'') MVNW_USERNAME='' MVNW_PASSWORD='' ;;
+has-password) [ -n "${MVNW_USERNAME-}" ] || MVNW_USERNAME='' MVNW_PASSWORD='' ;;
+esac
+
+if [ -z "${MVNW_USERNAME-}" ] && command -v wget >/dev/null; then
+  verbose "Found wget ... using wget"
+  wget ${__MVNW_QUIET_WGET:+"$__MVNW_QUIET_WGET"} "$distributionUrl" -O "$TMP_DOWNLOAD_DIR/$distributionUrlName" || die "wget: Failed to fetch $distributionUrl"
+elif [ -z "${MVNW_USERNAME-}" ] && command -v curl >/dev/null; then
+  verbose "Found curl ... using curl"
+  curl ${__MVNW_QUIET_CURL:+"$__MVNW_QUIET_CURL"} -f -L -o "$TMP_DOWNLOAD_DIR/$distributionUrlName" "$distributionUrl" || die "curl: Failed to fetch $distributionUrl"
+elif set_java_home; then
+  verbose "Falling back to use Java to download"
+  javaSource="$TMP_DOWNLOAD_DIR/Downloader.java"
+  targetZip="$TMP_DOWNLOAD_DIR/$distributionUrlName"
+  cat >"$javaSource" <<-END
+	public class Downloader extends java.net.Authenticator
+	{
+	  protected java.net.PasswordAuthentication getPasswordAuthentication()
+	  {
+	    return new java.net.PasswordAuthentication( System.getenv( "MVNW_USERNAME" ), System.getenv( "MVNW_PASSWORD" ).toCharArray() );
+	  }
+	  public static void main( String[] args ) throws Exception
+	  {
+	    setDefault( new Downloader() );
+	    java.nio.file.Files.copy( java.net.URI.create( args[0] ).toURL().openStream(), java.nio.file.Paths.get( args[1] ).toAbsolutePath().normalize() );
+	  }
+	}
+	END
+  # For Cygwin/MinGW, switch paths to Windows format before running javac and java
+  verbose " - Compiling Downloader.java ..."
+  "$(native_path "$JAVACCMD")" "$(native_path "$javaSource")" || die "Failed to compile Downloader.java"
+  verbose " - Running Downloader.java ..."
+  "$(native_path "$JAVACMD")" -cp "$(native_path "$TMP_DOWNLOAD_DIR")" Downloader "$distributionUrl" "$(native_path "$targetZip")"
+fi
+
+# If specified, validate the SHA-256 sum of the Maven distribution zip file
+if [ -n "${distributionSha256Sum-}" ]; then
+  distributionSha256Result=false
+  if [ "$MVN_CMD" = mvnd.sh ]; then
+    echo "Checksum validation is not supported for maven-mvnd." >&2
+    echo "Please disable validation by removing 'distributionSha256Sum' from your maven-wrapper.properties." >&2
+    exit 1
+  elif command -v sha256sum >/dev/null; then
+    if echo "$distributionSha256Sum  $TMP_DOWNLOAD_DIR/$distributionUrlName" | sha256sum -c - >/dev/null 2>&1; then
+      distributionSha256Result=true
+    fi
+  elif command -v shasum >/dev/null; then
+    if echo "$distributionSha256Sum  $TMP_DOWNLOAD_DIR/$distributionUrlName" | shasum -a 256 -c >/dev/null 2>&1; then
+      distributionSha256Result=true
+    fi
+  else
+    echo "Checksum validation was requested but neither 'sha256sum' or 'shasum' are available." >&2
+    echo "Please install either command, or disable validation by removing 'distributionSha256Sum' from your maven-wrapper.properties." >&2
+    exit 1
+  fi
+  if [ $distributionSha256Result = false ]; then
+    echo "Error: Failed to validate Maven distribution SHA-256, your Maven distribution might be compromised." >&2
+    echo "If you updated your Maven version, you need to update the specified distributionSha256Sum property." >&2
+    exit 1
+  fi
+fi
+
+# unzip and move
+if command -v unzip >/dev/null; then
+  unzip ${__MVNW_QUIET_UNZIP:+"$__MVNW_QUIET_UNZIP"} "$TMP_DOWNLOAD_DIR/$distributionUrlName" -d "$TMP_DOWNLOAD_DIR" || die "failed to unzip"
+else
+  tar xzf${__MVNW_QUIET_TAR:+"$__MVNW_QUIET_TAR"} "$TMP_DOWNLOAD_DIR/$distributionUrlName" -C "$TMP_DOWNLOAD_DIR" || die "failed to untar"
+fi
+
+# Find the actual extracted directory name (handles snapshots where filename != directory name)
+actualDistributionDir=""
+
+# First try the expected directory name (for regular distributions)
+if [ -d "$TMP_DOWNLOAD_DIR/$distributionUrlNameMain" ]; then
+  if [ -f "$TMP_DOWNLOAD_DIR/$distributionUrlNameMain/bin/$MVN_CMD" ]; then
+    actualDistributionDir="$distributionUrlNameMain"
+  fi
+fi
+
+# If not found, search for any directory with the Maven executable (for snapshots)
+if [ -z "$actualDistributionDir" ]; then
+  # enable globbing to iterate over items
+  set +f
+  for dir in "$TMP_DOWNLOAD_DIR"/*; do
+    if [ -d "$dir" ]; then
+      if [ -f "$dir/bin/$MVN_CMD" ]; then
+        actualDistributionDir="$(basename "$dir")"
+        break
+      fi
+    fi
+  done
+  set -f
+fi
+
+if [ -z "$actualDistributionDir" ]; then
+  verbose "Contents of $TMP_DOWNLOAD_DIR:"
+  verbose "$(ls -la "$TMP_DOWNLOAD_DIR")"
+  die "Could not find Maven distribution directory in extracted archive"
+fi
+
+verbose "Found extracted Maven distribution directory: $actualDistributionDir"
+printf %s\\n "$distributionUrl" >"$TMP_DOWNLOAD_DIR/$actualDistributionDir/mvnw.url"
+mv -- "$TMP_DOWNLOAD_DIR/$actualDistributionDir" "$MAVEN_HOME" || [ -d "$MAVEN_HOME" ] || die "fail to move MAVEN_HOME"
+
+clean || :
+exec_maven "$@"
--- a/pom.xml
+++ b/pom.xml
@@ -15,6 +15,7 @@
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-compiler-plugin</artifactId>
+                <version>3.13.0</version>
                <configuration>
                    <source>16</source>
                    <target>16</target>
@@ -25,6 +26,40 @@
                <artifactId>maven-surefire-plugin</artifactId>
                <version>3.2.5</version>
            </plugin>
+            <plugin>
+                <groupId>org.jacoco</groupId>
+                <artifactId>jacoco-maven-plugin</artifactId>
+                <version>0.8.13</version>
+                <executions>
+                    <execution>
+                        <goals>
+                            <goal>prepare-agent</goal>
+                            <goal>report</goal>
+                            <goal>check</goal>
+                        </goals>
+                    </execution>
+                </executions>
+                <configuration>
+                    <excludes>
+                        <!-- UI classes require a display and cannot be unit-tested -->
+                        <exclude>ovh/gasser/newshapes/App.class</exclude>
+                        <exclude>ovh/gasser/newshapes/ui/**</exclude>
+                        <exclude>ovh/gasser/newshapes/Selection.class</exclude>
+                    </excludes>
+                    <rules>
+                        <rule>
+                            <element>BUNDLE</element>
+                            <limits>
+                                <limit>
+                                    <counter>LINE</counter>
+                                    <value>COVEREDRATIO</value>
+                                    <minimum>0.50</minimum>
+                                </limit>
+                            </limits>
+                        </rule>
+                    </rules>
+                </configuration>
+            </plugin>
        </plugins>
    </build>

@@ -36,13 +71,13 @@
        <dependency>
            <groupId>org.slf4j</groupId>
            <artifactId>slf4j-api</artifactId>
-            <version>RELEASE</version>
+            <version>2.0.16</version>
        </dependency>

        <dependency>
            <groupId>ch.qos.logback</groupId>
            <artifactId>logback-classic</artifactId>
-            <version>RELEASE</version>
+            <version>1.5.12</version>
        </dependency>

        <dependency>
@@ -58,5 +93,12 @@
            <version>5.10.0</version>
            <scope>test</scope>
        </dependency>
+
+        <dependency>
+            <groupId>org.junit.jupiter</groupId>
+            <artifactId>junit-jupiter-params</artifactId>
+            <version>5.10.0</version>
+            <scope>test</scope>
+        </dependency>
    </dependencies>
 </project>
--- a/src/test/java/ovh/gasser/newshapes/attributes/ColorAttributesTest.java
+++ b/src/test/java/ovh/gasser/newshapes/attributes/ColorAttributesTest.java
@@ -0,0 +1,129 @@
+package ovh.gasser.newshapes.attributes;
+
+import org.junit.jupiter.api.Test;
+
+import java.awt.*;
+
+import static org.junit.jupiter.api.Assertions.*;
+
+class ColorAttributesTest {
+
+    @Test
+    void testConstructorStoresFilledFlag() {
+        ColorAttributes attrs = new ColorAttributes(true, false, Color.RED, Color.BLACK);
+        assertTrue(attrs.filled, "filled flag should be true when constructed with true");
+    }
+
+    @Test
+    void testConstructorStoresStrokedFlag() {
+        ColorAttributes attrs = new ColorAttributes(false, true, Color.RED, Color.BLACK);
+        assertTrue(attrs.stroked, "stroked flag should be true when constructed with true");
+    }
+
+    @Test
+    void testConstructorStoresFilledColor() {
+        ColorAttributes attrs = new ColorAttributes(true, false, Color.BLUE, Color.BLACK);
+        assertEquals(Color.BLUE, attrs.filledColor, "filledColor should match the constructor argument");
+    }
+
+    @Test
+    void testConstructorStoresStrokedColor() {
+        ColorAttributes attrs = new ColorAttributes(false, true, Color.RED, Color.GREEN);
+        assertEquals(Color.GREEN, attrs.strokedColor, "strokedColor should match the constructor argument");
+    }
+
+    @Test
+    void testFilledAndStrokedBothTrue() {
+        ColorAttributes attrs = new ColorAttributes(true, true, Color.RED, Color.BLUE);
+        assertTrue(attrs.filled);
+        assertTrue(attrs.stroked);
+    }
+
+    @Test
+    void testFilledAndStrokedBothFalse() {
+        ColorAttributes attrs = new ColorAttributes(false, false, Color.RED, Color.BLUE);
+        assertFalse(attrs.filled);
+        assertFalse(attrs.stroked);
+    }
+
+    @Test
+    void testNullFilledColor() {
+        ColorAttributes attrs = new ColorAttributes(true, false, null, Color.BLACK);
+        assertNull(attrs.filledColor, "filledColor should accept null");
+    }
+
+    @Test
+    void testNullStrokedColor() {
+        ColorAttributes attrs = new ColorAttributes(false, true, Color.RED, null);
+        assertNull(attrs.strokedColor, "strokedColor should accept null");
+    }
+
+    @Test
+    void testBothColorsNull() {
+        ColorAttributes attrs = new ColorAttributes(false, false, null, null);
+        assertNull(attrs.filledColor);
+        assertNull(attrs.strokedColor);
+    }
+
+    @Test
+    void testGetIDReturnsCorrectValue() {
+        ColorAttributes attrs = new ColorAttributes(false, false, Color.RED, Color.BLACK);
+        assertEquals(ColorAttributes.ID, attrs.getID());
+    }
+
+    @Test
+    void testIDConstant() {
+        assertEquals("COLOR_ATTRS", ColorAttributes.ID);
+    }
+
+    @Test
+    void testImplementsAttributes() {
+        ColorAttributes attrs = new ColorAttributes(false, false, Color.RED, Color.BLACK);
+        assertInstanceOf(Attributes.class, attrs);
+    }
+
+    @Test
+    void testToStringContainsAllFields() {
+        ColorAttributes attrs = new ColorAttributes(true, false, Color.RED, Color.BLUE);
+        String str = attrs.toString();
+        assertTrue(str.contains("filled=true"), "toString should contain filled value");
+        assertTrue(str.contains("stroked=false"), "toString should contain stroked value");
+        assertTrue(str.contains("filledColor"), "toString should contain filledColor");
+        assertTrue(str.contains("strokedColor"), "toString should contain strokedColor");
+    }
+
+    @Test
+    void testToStringWithNullColors() {
+        ColorAttributes attrs = new ColorAttributes(false, false, null, null);
+        String str = attrs.toString();
+        assertNotNull(str, "toString should not throw with null colors");
+        assertTrue(str.contains("filledColor=null"), "toString should show null filledColor");
+        assertTrue(str.contains("strokedColor=null"), "toString should show null strokedColor");
+    }
+
+    @Test
+    void testTwoInstancesAreIndependent() {
+        ColorAttributes attrs1 = new ColorAttributes(true, false, Color.RED, Color.BLACK);
+        ColorAttributes attrs2 = new ColorAttributes(false, true, Color.BLUE, Color.GREEN);
+
+        assertTrue(attrs1.filled);
+        assertFalse(attrs2.filled);
+        assertFalse(attrs1.stroked);
+        assertTrue(attrs2.stroked);
+        assertEquals(Color.RED, attrs1.filledColor);
+        assertEquals(Color.BLUE, attrs2.filledColor);
+    }
+
+    @Test
+    void testFieldsAreImmutable() {
+        Color fillColor = Color.RED;
+        Color strokeColor = Color.BLACK;
+        ColorAttributes attrs = new ColorAttributes(true, true, fillColor, strokeColor);
+
+        // Since fields are final, verify they retain their values
+        assertEquals(Color.RED, attrs.filledColor);
+        assertEquals(Color.BLACK, attrs.strokedColor);
+        assertTrue(attrs.filled);
+        assertTrue(attrs.stroked);
+    }
+}
--- a/src/test/java/ovh/gasser/newshapes/attributes/SelectionAttributesTest.java
+++ b/src/test/java/ovh/gasser/newshapes/attributes/SelectionAttributesTest.java
@@ -0,0 +1,72 @@
+package ovh.gasser.newshapes.attributes;
+
+import org.junit.jupiter.api.Test;
+
+import static org.junit.jupiter.api.Assertions.*;
+
+class SelectionAttributesTest {
+
+    @Test
+    void testDefaultConstructorIsUnselected() {
+        SelectionAttributes attrs = new SelectionAttributes();
+        assertFalse(attrs.selected, "Default constructor should create unselected state");
+    }
+
+    @Test
+    void testConstructorWithTrue() {
+        SelectionAttributes attrs = new SelectionAttributes(true);
+        assertTrue(attrs.selected, "Constructor with true should create selected state");
+    }
+
+    @Test
+    void testConstructorWithFalse() {
+        SelectionAttributes attrs = new SelectionAttributes(false);
+        assertFalse(attrs.selected, "Constructor with false should create unselected state");
+    }
+
+    @Test
+    void testGetIDReturnsCorrectValue() {
+        SelectionAttributes attrs = new SelectionAttributes();
+        assertEquals(SelectionAttributes.ID, attrs.getID());
+    }
+
+    @Test
+    void testIDConstant() {
+        assertEquals("SELECTION_ATTRS", SelectionAttributes.ID);
+    }
+
+    @Test
+    void testImplementsAttributes() {
+        SelectionAttributes attrs = new SelectionAttributes();
+        assertInstanceOf(Attributes.class, attrs);
+    }
+
+    @Test
+    void testSelectedFieldCanBeToggled() {
+        SelectionAttributes attrs = new SelectionAttributes(false);
+        assertFalse(attrs.selected);
+
+        attrs.selected = true;
+        assertTrue(attrs.selected);
+
+        attrs.selected = false;
+        assertFalse(attrs.selected);
+    }
+
+    @Test
+    void testTwoInstancesAreIndependent() {
+        SelectionAttributes attrs1 = new SelectionAttributes(true);
+        SelectionAttributes attrs2 = new SelectionAttributes(false);
+
+        assertNotEquals(attrs1.selected, attrs2.selected);
+
+        attrs2.selected = true;
+        assertTrue(attrs1.selected);
+        assertTrue(attrs2.selected);
+
+        // Mutating one doesn't affect the other
+        attrs1.selected = false;
+        assertFalse(attrs1.selected);
+        assertTrue(attrs2.selected);
+    }
+}
--- a/src/test/java/ovh/gasser/newshapes/shapes/ResizeHandleTest.java
+++ b/src/test/java/ovh/gasser/newshapes/shapes/ResizeHandleTest.java
@@ -0,0 +1,94 @@
+package ovh.gasser.newshapes.shapes;
+
+import org.junit.jupiter.api.Test;
+import java.awt.Cursor;
+
+import static org.junit.jupiter.api.Assertions.*;
+
+class ResizeHandleTest {
+
+    @Test
+    void testEightHandlesExist() {
+        assertEquals(8, ResizeHandle.values().length,
+                "ResizeHandle enum should define exactly 8 handles");
+    }
+
+    @Test
+    void testAllHandleNamesExist() {
+        assertNotNull(ResizeHandle.valueOf("NW"), "Handle NW should exist");
+        assertNotNull(ResizeHandle.valueOf("N"),  "Handle N should exist");
+        assertNotNull(ResizeHandle.valueOf("NE"), "Handle NE should exist");
+        assertNotNull(ResizeHandle.valueOf("E"),  "Handle E should exist");
+        assertNotNull(ResizeHandle.valueOf("SE"), "Handle SE should exist");
+        assertNotNull(ResizeHandle.valueOf("S"),  "Handle S should exist");
+        assertNotNull(ResizeHandle.valueOf("SW"), "Handle SW should exist");
+        assertNotNull(ResizeHandle.valueOf("W"),  "Handle W should exist");
+    }
+
+    @Test
+    void testNwMapsToCorrectCursorType() {
+        assertEquals(Cursor.NW_RESIZE_CURSOR, ResizeHandle.NW.getCursorType(),
+                "NW handle should map to Cursor.NW_RESIZE_CURSOR");
+    }
+
+    @Test
+    void testNMapsToCorrectCursorType() {
+        assertEquals(Cursor.N_RESIZE_CURSOR, ResizeHandle.N.getCursorType(),
+                "N handle should map to Cursor.N_RESIZE_CURSOR");
+    }
+
+    @Test
+    void testNeMapsToCorrectCursorType() {
+        assertEquals(Cursor.NE_RESIZE_CURSOR, ResizeHandle.NE.getCursorType(),
+                "NE handle should map to Cursor.NE_RESIZE_CURSOR");
+    }
+
+    @Test
+    void testEMapsToCorrectCursorType() {
+        assertEquals(Cursor.E_RESIZE_CURSOR, ResizeHandle.E.getCursorType(),
+                "E handle should map to Cursor.E_RESIZE_CURSOR");
+    }
+
+    @Test
+    void testSeMapsToCorrectCursorType() {
+        assertEquals(Cursor.SE_RESIZE_CURSOR, ResizeHandle.SE.getCursorType(),
+                "SE handle should map to Cursor.SE_RESIZE_CURSOR");
+    }
+
+    @Test
+    void testSMapsToCorrectCursorType() {
+        assertEquals(Cursor.S_RESIZE_CURSOR, ResizeHandle.S.getCursorType(),
+                "S handle should map to Cursor.S_RESIZE_CURSOR");
+    }
+
+    @Test
+    void testSwMapsToCorrectCursorType() {
+        assertEquals(Cursor.SW_RESIZE_CURSOR, ResizeHandle.SW.getCursorType(),
+                "SW handle should map to Cursor.SW_RESIZE_CURSOR");
+    }
+
+    @Test
+    void testWMapsToCorrectCursorType() {
+        assertEquals(Cursor.W_RESIZE_CURSOR, ResizeHandle.W.getCursorType(),
+                "W handle should map to Cursor.W_RESIZE_CURSOR");
+    }
+
+    @Test
+    void testValueOfReturnsCorrectConstant() {
+        assertSame(ResizeHandle.NW, ResizeHandle.valueOf("NW"), "valueOf(\"NW\") should return ResizeHandle.NW");
+        assertSame(ResizeHandle.N,  ResizeHandle.valueOf("N"),  "valueOf(\"N\") should return ResizeHandle.N");
+        assertSame(ResizeHandle.NE, ResizeHandle.valueOf("NE"), "valueOf(\"NE\") should return ResizeHandle.NE");
+        assertSame(ResizeHandle.E,  ResizeHandle.valueOf("E"),  "valueOf(\"E\") should return ResizeHandle.E");
+        assertSame(ResizeHandle.SE, ResizeHandle.valueOf("SE"), "valueOf(\"SE\") should return ResizeHandle.SE");
+        assertSame(ResizeHandle.S,  ResizeHandle.valueOf("S"),  "valueOf(\"S\") should return ResizeHandle.S");
+        assertSame(ResizeHandle.SW, ResizeHandle.valueOf("SW"), "valueOf(\"SW\") should return ResizeHandle.SW");
+        assertSame(ResizeHandle.W,  ResizeHandle.valueOf("W"),  "valueOf(\"W\") should return ResizeHandle.W");
+    }
+
+    @Test
+    void testValueOfWithInvalidNameThrowsIllegalArgumentException() {
+        assertThrows(IllegalArgumentException.class,
+                () -> ResizeHandle.valueOf("INVALID"),
+                "valueOf() with an unknown name should throw IllegalArgumentException");
+    }
+}
--- a/src/test/java/ovh/gasser/newshapes/shapes/ShapeContractTest.java
+++ b/src/test/java/ovh/gasser/newshapes/shapes/ShapeContractTest.java
@@ -0,0 +1,73 @@
+package ovh.gasser.newshapes.shapes;
+
+import org.junit.jupiter.params.ParameterizedTest;
+import org.junit.jupiter.params.provider.MethodSource;
+
+import java.awt.Rectangle;
+
+import static org.junit.jupiter.api.Assertions.*;
+
+/**
+ * Parameterized contract tests verifying Shape interface invariants
+ * across all implementations (SRectangle, SCircle, STriangle, SText, SCollection).
+ */
+class ShapeContractTest {
+
+    @ParameterizedTest(name = "{0}")
+    @MethodSource("ovh.gasser.newshapes.shapes.ShapeFactory#allShapes")
+    void cloneReturnsIndependentCopy(Shape shape) {
+        Shape cloned = shape.clone();
+
+        // clone must not be the same instance
+        assertNotSame(shape, cloned, "clone() must return a new instance");
+
+        // clone must have equal bounds
+        assertEquals(shape.getBounds(), cloned.getBounds(),
+                "clone() must preserve bounds");
+
+        // mutating the clone must not affect the original
+        Rectangle originalBounds = shape.getBounds();
+        cloned.translate(999, 999);
+        assertEquals(originalBounds, shape.getBounds(),
+                "Translating the clone must not affect the original's bounds");
+    }
+
+    @ParameterizedTest(name = "{0}")
+    @MethodSource("ovh.gasser.newshapes.shapes.ShapeFactory#allShapes")
+    void getBoundsReturnsCopy(Shape shape) {
+        Rectangle bounds1 = shape.getBounds();
+        Rectangle bounds2 = shape.getBounds();
+
+        // successive calls must return equal bounds
+        assertEquals(bounds1, bounds2,
+                "getBounds() must return consistent values");
+
+        // but not the same object (defensive copy)
+        assertNotSame(bounds1, bounds2,
+                "getBounds() must return a copy, not internal state");
+
+        // mutating the returned Rectangle must not affect the shape
+        bounds1.translate(500, 500);
+        assertEquals(bounds2, shape.getBounds(),
+                "Mutating the returned Rectangle must not affect the shape");
+    }
+
+    @ParameterizedTest(name = "{0}")
+    @MethodSource("ovh.gasser.newshapes.shapes.ShapeFactory#allShapes")
+    void translateMutatesInPlace(Shape shape) {
+        Rectangle before = shape.getBounds();
+        int dx = 7, dy = -3;
+
+        shape.translate(dx, dy);
+
+        Rectangle after = shape.getBounds();
+        assertEquals(before.x + dx, after.x,
+                "translate() must shift x by dx");
+        assertEquals(before.y + dy, after.y,
+                "translate() must shift y by dy");
+        assertEquals(before.width, after.width,
+                "translate() must not change width");
+        assertEquals(before.height, after.height,
+                "translate() must not change height");
+    }
+}
--- a/src/test/java/ovh/gasser/newshapes/shapes/ShapeFactory.java
+++ b/src/test/java/ovh/gasser/newshapes/shapes/ShapeFactory.java
@@ -0,0 +1,25 @@
+package ovh.gasser.newshapes.shapes;
+
+import java.awt.Color;
+import java.util.stream.Stream;
+
+/**
+ * Provides Shape instances for parameterized contract tests.
+ */
+public final class ShapeFactory {
+
+    private ShapeFactory() {}
+
+    static Stream<Shape> allShapes() {
+        return Stream.of(
+                SRectangle.create(10, 20, 100, 50),
+                SCircle.create(5, 5, 30),
+                STriangle.create(0, 0, 40, Color.RED, Color.BLACK),
+                SText.create(15, 25, "Hello"),
+                SCollection.of(
+                        SRectangle.create(0, 0, 20, 20),
+                        SCircle.create(10, 10, 5)
+                )
+        );
+    }
+}
--- a/src/test/java/ovh/gasser/newshapes/ui/visitors/HTMLDraftmanTest.java
+++ b/src/test/java/ovh/gasser/newshapes/ui/visitors/HTMLDraftmanTest.java
@@ -0,0 +1,409 @@
+package ovh.gasser.newshapes.ui.visitors;
+
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Nested;
+import org.junit.jupiter.api.Test;
+import ovh.gasser.newshapes.attributes.ColorAttributes;
+import ovh.gasser.newshapes.shapes.*;
+
+import java.awt.*;
+import java.io.PrintWriter;
+import java.io.StringWriter;
+
+import static org.junit.jupiter.api.Assertions.*;
+
+class HTMLDraftmanTest {
+
+    private StringWriter htmlBuffer;
+    private StringWriter cssBuffer;
+    private PrintWriter htmlWriter;
+    private PrintWriter cssWriter;
+    private HTMLDraftman draftman;
+
+    @BeforeEach
+    void setUp() {
+        htmlBuffer = new StringWriter();
+        cssBuffer = new StringWriter();
+        htmlWriter = new PrintWriter(htmlBuffer);
+        cssWriter = new PrintWriter(cssBuffer);
+        draftman = new HTMLDraftman(htmlWriter, cssWriter);
+    }
+
+    private String html() {
+        htmlWriter.flush();
+        return htmlBuffer.toString();
+    }
+
+    private String css() {
+        cssWriter.flush();
+        return cssBuffer.toString();
+    }
+
+    // ── visitRectangle ──────────────────────────────────────────────
+
+    @Nested
+    class VisitRectangleTests {
+
+        @Test
+        void testRectangleProducesDivWithId() {
+            SRectangle rect = SRectangle.create(10, 20, 100, 50);
+            draftman.visitRectangle(rect);
+
+            assertTrue(html().contains("<div id=\"rec"), "Should produce a div with rec id");
+        }
+
+        @Test
+        void testRectangleCssContainsCorrectPosition() {
+            SRectangle rect = SRectangle.create(10, 20, 100, 50);
+            draftman.visitRectangle(rect);
+
+            String cssOut = css();
+            assertTrue(cssOut.contains("top:20px"), "CSS should contain correct top");
+            assertTrue(cssOut.contains("left:10px"), "CSS should contain correct left");
+        }
+
+        @Test
+        void testRectangleCssContainsCorrectDimensions() {
+            SRectangle rect = SRectangle.create(10, 20, 100, 50);
+            draftman.visitRectangle(rect);
+
+            String cssOut = css();
+            assertTrue(cssOut.contains("width:100px"), "CSS should contain correct width");
+            assertTrue(cssOut.contains("height:50px"), "CSS should contain correct height");
+        }
+
+        @Test
+        void testRectangleCssPositionIsAbsolute() {
+            SRectangle rect = SRectangle.create(0, 0, 30, 30);
+            draftman.visitRectangle(rect);
+
+            assertTrue(css().contains("position:absolute"), "CSS should use absolute positioning");
+        }
+
+        @Test
+        void testRectangleHtmlIdMatchesCssSelector() {
+            SRectangle rect = SRectangle.create(0, 0, 30, 30);
+            draftman.visitRectangle(rect);
+
+            String id = "rec" + rect.hashCode();
+            assertTrue(html().contains("id=\"" + id + "\""), "HTML should contain div with correct id");
+            assertTrue(css().contains("#" + id), "CSS should reference same id");
+        }
+
+        @Test
+        void testRectangleFilledAndStroked() {
+            SRectangle rect = SRectangle.create(0, 0, 30, 30);
+            rect.addAttributes(new ColorAttributes(true, true, Color.RED, Color.BLUE));
+            draftman.visitRectangle(rect);
+
+            String cssOut = css();
+            assertTrue(cssOut.contains("background:"), "CSS should contain background");
+            assertTrue(cssOut.contains("border:"), "CSS should contain border");
+        }
+
+        @Test
+        void testRectangleFilledOnly() {
+            SRectangle rect = SRectangle.create(0, 0, 30, 30);
+            rect.addAttributes(new ColorAttributes(true, false, Color.RED, Color.BLACK));
+            draftman.visitRectangle(rect);
+
+            String cssOut = css();
+            assertTrue(cssOut.contains("background:"), "CSS should contain background for filled");
+            assertFalse(cssOut.contains("border:"), "CSS should not contain border when not stroked");
+        }
+
+        @Test
+        void testRectangleStrokedOnly() {
+            SRectangle rect = SRectangle.create(0, 0, 30, 30);
+            rect.addAttributes(new ColorAttributes(false, true, Color.RED, Color.BLUE));
+            draftman.visitRectangle(rect);
+
+            String cssOut = css();
+            assertTrue(cssOut.contains("border:"), "CSS should contain border for stroked");
+            assertTrue(cssOut.contains("background:#ffffff"), "CSS should have white background when not filled");
+        }
+
+        @Test
+        void testRectangleNeitherFilledNorStroked() {
+            SRectangle rect = SRectangle.create(0, 0, 30, 30);
+            rect.addAttributes(new ColorAttributes(false, false, Color.RED, Color.BLUE));
+            draftman.visitRectangle(rect);
+
+            String cssOut = css();
+            assertFalse(cssOut.contains("background:"), "CSS should not contain background");
+            assertFalse(cssOut.contains("border:"), "CSS should not contain border");
+        }
+    }
+
+    // ── visitCircle ─────────────────────────────────────────────────
+
+    @Nested
+    class VisitCircleTests {
+
+        @Test
+        void testCircleProducesDivWithClass() {
+            SCircle circle = SCircle.create(50, 60, 30);
+            draftman.visitCircle(circle);
+
+            assertTrue(html().contains("circle"), "HTML should contain circle class div");
+        }
+
+        @Test
+        void testCircleCssContainsBorderRadius() {
+            SCircle circle = SCircle.create(50, 60, 30);
+            draftman.visitCircle(circle);
+
+            String cssOut = css();
+            assertTrue(cssOut.contains("border-radius:"), "CSS should contain border-radius");
+            assertTrue(cssOut.contains("-webkit-border-radius:"), "CSS should contain webkit prefix");
+            assertTrue(cssOut.contains("-moz-border-radius:"), "CSS should contain moz prefix");
+        }
+
+        @Test
+        void testCircleCssContainsCorrectPosition() {
+            SCircle circle = SCircle.create(50, 60, 30);
+            draftman.visitCircle(circle);
+
+            String cssOut = css();
+            assertTrue(cssOut.contains("top:60px"), "CSS should contain correct top");
+            assertTrue(cssOut.contains("left:50px"), "CSS should contain correct left");
+        }
+
+        @Test
+        void testCircleHtmlClassMatchesCssSelector() {
+            SCircle circle = SCircle.create(0, 0, 20);
+            draftman.visitCircle(circle);
+
+            String className = "circle" + circle.hashCode();
+            assertTrue(html().contains(className), "HTML should have circle class");
+            assertTrue(css().contains("." + className), "CSS should reference same class");
+        }
+    }
+
+    // ── visitTriangle ───────────────────────────────────────────────
+
+    @Nested
+    class VisitTriangleTests {
+
+        @Test
+        void testTriangleProducesDivWithClass() {
+            STriangle tri = STriangle.create(10, 20, 40, Color.RED, Color.BLACK);
+            draftman.visitTriangle(tri);
+
+            assertTrue(html().contains("triangle"), "HTML should contain triangle class div");
+        }
+
+        @Test
+        void testTriangleCssContainsBorderTrick() {
+            STriangle tri = STriangle.create(10, 20, 40, Color.RED, Color.BLACK);
+            draftman.visitTriangle(tri);
+
+            String cssOut = css();
+            assertTrue(cssOut.contains("border-left-width:"), "CSS should use border-left-width");
+            assertTrue(cssOut.contains("border-right-width:"), "CSS should use border-right-width");
+            assertTrue(cssOut.contains("border-bottom:"), "CSS should use border-bottom");
+            assertTrue(cssOut.contains("width: 0px"), "CSS should set width to 0");
+            assertTrue(cssOut.contains("height: 0px"), "CSS should set height to 0");
+        }
+
+        @Test
+        void testTriangleCssContainsCorrectPosition() {
+            STriangle tri = STriangle.create(10, 20, 40, Color.RED, Color.BLACK);
+            draftman.visitTriangle(tri);
+
+            String cssOut = css();
+            assertTrue(cssOut.contains("top: 20px"), "CSS should contain correct top");
+            assertTrue(cssOut.contains("left: 10px"), "CSS should contain correct left");
+        }
+
+        @Test
+        void testTriangleCssContainsFillColor() {
+            STriangle tri = STriangle.create(0, 0, 20, Color.BLUE, Color.BLACK);
+            tri.addAttributes(new ColorAttributes(true, false, Color.BLUE, Color.BLACK));
+            draftman.visitTriangle(tri);
+
+            assertTrue(css().contains("#0000ff"), "CSS should contain the triangle fill color");
+        }
+
+        @Test
+        void testTriangleHtmlClassMatchesCssSelector_regressionHashCode() {
+            // Regression test: visitTriangle previously used this.hashCode()
+            // instead of sTriangle.hashCode(), causing HTML class and CSS
+            // selector mismatch when rendered by a different draftman instance.
+            STriangle tri = STriangle.create(5, 5, 30, Color.RED, Color.BLACK);
+            draftman.visitTriangle(tri);
+
+            String htmlOut = html();
+            String cssOut = css();
+
+            // Extract the class name from HTML: class="triangleNNN"
+            int classStart = htmlOut.indexOf("triangle");
+            assertNotEquals(-1, classStart, "HTML should contain triangle class");
+            int classEnd = htmlOut.indexOf("\"", classStart);
+            String htmlClassName = htmlOut.substring(classStart, classEnd);
+
+            // CSS should use the same class name
+            assertTrue(cssOut.contains("." + htmlClassName),
+                    "CSS selector should match HTML class — " +
+                    "if this fails, visitTriangle may be using this.hashCode() instead of sTriangle.hashCode()");
+        }
+    }
+
+    // ── visitText ───────────────────────────────────────────────────
+
+    @Nested
+    class VisitTextTests {
+
+        @Test
+        void testTextProducesDivWithContent() {
+            SText text = SText.create(10, 20, "Hello");
+            draftman.visitText(text);
+
+            assertTrue(html().contains(">Hello</div>"), "HTML should contain text content in div");
+        }
+
+        @Test
+        void testTextHtmlIdMatchesCssSelector() {
+            SText text = SText.create(0, 0, "Test");
+            draftman.visitText(text);
+
+            String id = "txt" + text.hashCode();
+            assertTrue(html().contains("id=\"" + id + "\""), "HTML should contain text div with correct id");
+            assertTrue(css().contains("#" + id), "CSS should reference same text id");
+        }
+
+        @Test
+        void testTextCssContainsPosition() {
+            SText text = SText.create(15, 25, "Pos");
+            draftman.visitText(text);
+
+            String cssOut = css();
+            assertTrue(cssOut.contains("top:25px"), "CSS should contain correct top");
+            assertTrue(cssOut.contains("left:15px"), "CSS should contain correct left");
+        }
+
+        @Test
+        void testTextCssContainsDefaultFontAttributes() {
+            SText text = SText.create(0, 0, "Font");
+            draftman.visitText(text);
+
+            String cssOut = css();
+            assertTrue(cssOut.contains("font-family:"), "CSS should contain font-family");
+            assertTrue(cssOut.contains("font-size:16px"), "CSS should contain default font size");
+            assertTrue(cssOut.contains("font-style:normal"), "CSS should contain normal font style");
+            assertTrue(cssOut.contains("font-weight:normal"), "CSS should contain normal font weight");
+        }
+
+        @Test
+        void testTextCssContainsColor() {
+            SText text = SText.create(0, 0, "Colored");
+            text.addAttributes(new ColorAttributes(true, false, Color.RED, Color.BLACK));
+            draftman.visitText(text);
+
+            assertTrue(css().contains("color:#ff0000"), "CSS should contain fill color as text color");
+        }
+
+        @Test
+        void testTextCssWhiteSpaceNowrap() {
+            SText text = SText.create(0, 0, "NoWrap");
+            draftman.visitText(text);
+
+            assertTrue(css().contains("white-space: nowrap"), "CSS should prevent text wrapping");
+        }
+
+        @Test
+        void testTextWithNullColorAttributesFallsBackToBlack() {
+            SText text = SText.create(0, 0, "Fallback");
+            text.addAttributes(new ColorAttributes(false, false, null, null));
+            draftman.visitText(text);
+
+            assertTrue(css().contains("color:#000000"), "Should fall back to black with null colors");
+        }
+    }
+
+    // ── visitCollection ─────────────────────────────────────────────
+
+    @Nested
+    class VisitCollectionTests {
+
+        @Test
+        void testEmptyCollection() {
+            SCollection empty = SCollection.of();
+            draftman.visitCollection(empty);
+
+            assertEquals("", html(), "Empty collection should produce no HTML");
+            assertEquals("", css(), "Empty collection should produce no CSS");
+        }
+
+        @Test
+        void testCollectionVisitsAllChildren() {
+            SCollection coll = SCollection.of(
+                    SRectangle.create(0, 0, 10, 10),
+                    SCircle.create(20, 20, 5)
+            );
+            draftman.visitCollection(coll);
+
+            assertTrue(html().contains("rec"), "Should visit rectangle");
+            assertTrue(html().contains("circle"), "Should visit circle");
+        }
+
+        @Test
+        void testNestedCollectionVisitsAllDescendants() {
+            SCollection inner = SCollection.of(
+                    SRectangle.create(0, 0, 5, 5)
+            );
+            SCollection outer = SCollection.of(
+                    inner,
+                    SCircle.create(10, 10, 3)
+            );
+            draftman.visitCollection(outer);
+
+            assertTrue(html().contains("rec"), "Should visit nested rectangle");
+            assertTrue(html().contains("circle"), "Should visit circle at outer level");
+        }
+    }
+
+    // ── generateHTML ────────────────────────────────────────────────
+
+    @Nested
+    class GenerateHTMLTests {
+
+        @Test
+        void testGenerateHTMLIncludesDoctype() {
+            SCollection model = SCollection.of();
+            draftman.generateHTML(model);
+
+            assertTrue(html().contains("<!DOCTYPE html>"), "Should include DOCTYPE");
+        }
+
+        @Test
+        void testGenerateHTMLIncludesHtmlStructure() {
+            SCollection model = SCollection.of();
+            draftman.generateHTML(model);
+
+            String htmlOut = html();
+            assertTrue(htmlOut.contains("<html"), "Should include html tag");
+            assertTrue(htmlOut.contains("<head>"), "Should include head tag");
+            assertTrue(htmlOut.contains("<body>"), "Should include body tag");
+            assertTrue(htmlOut.contains("</body>"), "Should close body tag");
+        }
+
+        @Test
+        void testGenerateHTMLReferencesStylesheet() {
+            SCollection model = SCollection.of();
+            draftman.generateHTML(model);
+
+            assertTrue(html().contains("style.css"), "Should reference CSS stylesheet");
+        }
+
+        @Test
+        void testGenerateHTMLIncludesShapeContent() {
+            SCollection model = SCollection.of(
+                    SRectangle.create(1, 2, 3, 4)
+            );
+            draftman.generateHTML(model);
+
+            assertTrue(html().contains("<div id=\"rec"), "Should include shape elements");
+        }
+    }
+}
--- a/src/test/java/ovh/gasser/newshapes/ui/visitors/SVGDraftmanTest.java
+++ b/src/test/java/ovh/gasser/newshapes/ui/visitors/SVGDraftmanTest.java
@@ -0,0 +1,370 @@
+package ovh.gasser.newshapes.ui.visitors;
+
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Nested;
+import org.junit.jupiter.api.Test;
+import ovh.gasser.newshapes.attributes.ColorAttributes;
+import ovh.gasser.newshapes.shapes.*;
+
+import java.awt.*;
+import java.io.PrintWriter;
+import java.io.StringWriter;
+
+import static org.junit.jupiter.api.Assertions.*;
+
+class SVGDraftmanTest {
+
+    private StringWriter buffer;
+    private PrintWriter writer;
+    private SVGDraftman draftman;
+
+    @BeforeEach
+    void setUp() {
+        buffer = new StringWriter();
+        writer = new PrintWriter(buffer);
+        draftman = new SVGDraftman(writer);
+    }
+
+    private String output() {
+        writer.flush();
+        return buffer.toString();
+    }
+
+    // ── visitRectangle ──────────────────────────────────────────────
+
+    @Nested
+    class VisitRectangleTests {
+
+        @Test
+        void testRectangleElementWithCorrectDimensions() {
+            SRectangle rect = SRectangle.create(10, 20, 100, 50);
+            draftman.visitRectangle(rect);
+
+            String svg = output();
+            assertTrue(svg.contains("<rect"), "Should produce a <rect> element");
+            assertTrue(svg.contains("width=\"100\""), "Should have correct width");
+            assertTrue(svg.contains("height=\"50\""), "Should have correct height");
+            assertTrue(svg.contains("x=\"10\""), "Should have correct x");
+            assertTrue(svg.contains("y=\"20\""), "Should have correct y");
+        }
+
+        @Test
+        void testRectangleFilledOnly() {
+            SRectangle rect = SRectangle.create(0, 0, 30, 30);
+            rect.addAttributes(new ColorAttributes(true, false, Color.RED, Color.BLACK));
+            draftman.visitRectangle(rect);
+
+            String svg = output();
+            assertTrue(svg.contains("fill=\"#ff0000\""), "Should contain fill color");
+            assertFalse(svg.contains("stroke="), "Should not contain stroke when stroked=false");
+        }
+
+        @Test
+        void testRectangleStrokedOnly() {
+            SRectangle rect = SRectangle.create(0, 0, 30, 30);
+            rect.addAttributes(new ColorAttributes(false, true, Color.RED, Color.BLUE));
+            draftman.visitRectangle(rect);
+
+            String svg = output();
+            assertTrue(svg.contains("stroke=\"#0000ff\""), "Should contain stroke color");
+            assertTrue(svg.contains("stroke-width=\"1\""), "Should contain stroke-width");
+            assertTrue(svg.contains("fill=\"none\""), "Should have fill=none when not filled");
+        }
+
+        @Test
+        void testRectangleFilledAndStroked() {
+            SRectangle rect = SRectangle.create(0, 0, 30, 30);
+            rect.addAttributes(new ColorAttributes(true, true, Color.RED, Color.BLUE));
+            draftman.visitRectangle(rect);
+
+            String svg = output();
+            assertTrue(svg.contains("fill=\"#ff0000\""), "Should contain fill color");
+            assertTrue(svg.contains("stroke=\"#0000ff\""), "Should contain stroke color");
+        }
+
+        @Test
+        void testRectangleNeitherFilledNorStroked() {
+            SRectangle rect = SRectangle.create(0, 0, 30, 30);
+            rect.addAttributes(new ColorAttributes(false, false, Color.RED, Color.BLUE));
+            draftman.visitRectangle(rect);
+
+            String svg = output();
+            assertTrue(svg.contains("fill=\"none\""), "Should have fill=none");
+            assertFalse(svg.contains("stroke="), "Should not have stroke attribute");
+        }
+    }
+
+    // ── visitCircle ─────────────────────────────────────────────────
+
+    @Nested
+    class VisitCircleTests {
+
+        @Test
+        void testCircleElementWithCorrectAttributes() {
+            SCircle circle = SCircle.create(50, 60, 30);
+            draftman.visitCircle(circle);
+
+            String svg = output();
+            assertTrue(svg.contains("<circle"), "Should produce a <circle> element");
+            // cx = x + r = 50 + 30 = 80, cy = y + r = 60 + 30 = 90
+            assertTrue(svg.contains("cx=\"80\""), "cx should be x + radius");
+            assertTrue(svg.contains("cy=\"90\""), "cy should be y + radius");
+            assertTrue(svg.contains("r=\"30\""), "Should have correct radius");
+        }
+
+        @Test
+        void testCircleFilledOnly() {
+            SCircle circle = SCircle.create(0, 0, 20);
+            circle.addAttributes(new ColorAttributes(true, false, Color.GREEN, Color.BLACK));
+            draftman.visitCircle(circle);
+
+            String svg = output();
+            assertTrue(svg.contains("fill=\"#00ff00\""), "Should contain fill color");
+            assertFalse(svg.contains("stroke="), "Should not contain stroke");
+        }
+
+        @Test
+        void testCircleStrokedOnly() {
+            SCircle circle = SCircle.create(0, 0, 20);
+            circle.addAttributes(new ColorAttributes(false, true, Color.RED, Color.MAGENTA));
+            draftman.visitCircle(circle);
+
+            String svg = output();
+            assertTrue(svg.contains("stroke=\"#ff00ff\""), "Should contain stroke color");
+            assertTrue(svg.contains("fill=\"none\""), "Should have fill=none");
+        }
+
+        @Test
+        void testCircleFilledAndStroked() {
+            SCircle circle = SCircle.create(0, 0, 15);
+            circle.addAttributes(new ColorAttributes(true, true, Color.YELLOW, Color.BLACK));
+            draftman.visitCircle(circle);
+
+            String svg = output();
+            assertTrue(svg.contains("fill=\"#ffff00\""), "Should contain fill color");
+            assertTrue(svg.contains("stroke=\"#000000\""), "Should contain stroke color");
+        }
+    }
+
+    // ── visitTriangle ───────────────────────────────────────────────
+
+    @Nested
+    class VisitTriangleTests {
+
+        @Test
+        void testTriangleProducesPolygonElement() {
+            STriangle tri = STriangle.create(10, 20, 40, Color.RED, Color.BLACK);
+            draftman.visitTriangle(tri);
+
+            String svg = output();
+            assertTrue(svg.contains("<polygon"), "Should produce a <polygon> element");
+            assertTrue(svg.contains("points="), "Should have points attribute");
+        }
+
+        @Test
+        void testTrianglePointsAreCorrect() {
+            STriangle tri = STriangle.create(10, 20, 40, Color.RED, Color.BLACK);
+            draftman.visitTriangle(tri);
+
+            String svg = output();
+            // bottom-left: (x, y+size) = (10, 60)
+            assertTrue(svg.contains("10,60"), "Should contain bottom-left point");
+            // top-center: (x + size/2, y) = (30, 20)
+            assertTrue(svg.contains("30,20"), "Should contain top-center point");
+            // bottom-right: (x + size, y + size) = (50, 60)
+            assertTrue(svg.contains("50,60"), "Should contain bottom-right point");
+        }
+
+        @Test
+        void testTriangleFilledOnly() {
+            STriangle tri = STriangle.create(0, 0, 20, Color.BLUE, Color.BLACK);
+            tri.addAttributes(new ColorAttributes(true, false, Color.BLUE, Color.BLACK));
+            draftman.visitTriangle(tri);
+
+            String svg = output();
+            assertTrue(svg.contains("fill:#0000ff"), "Should contain fill style");
+            assertFalse(svg.contains("stroke:"), "Should not contain stroke style when not stroked");
+        }
+
+        @Test
+        void testTriangleStrokedAndFilled() {
+            STriangle tri = STriangle.create(0, 0, 20, Color.RED, Color.GREEN);
+            tri.addAttributes(new ColorAttributes(true, true, Color.RED, Color.GREEN));
+            draftman.visitTriangle(tri);
+
+            String svg = output();
+            assertTrue(svg.contains("fill:#ff0000"), "Should contain fill style");
+            assertTrue(svg.contains("stroke:#00ff00"), "Should contain stroke style");
+        }
+
+        @Test
+        void testTriangleNotFilled() {
+            STriangle tri = STriangle.create(0, 0, 20, Color.RED, Color.BLACK);
+            tri.addAttributes(new ColorAttributes(false, true, Color.RED, Color.BLACK));
+            draftman.visitTriangle(tri);
+
+            String svg = output();
+            assertTrue(svg.contains("fill:none"), "Should have fill:none when not filled");
+        }
+    }
+
+    // ── visitText ───────────────────────────────────────────────────
+
+    @Nested
+    class VisitTextTests {
+
+        @Test
+        void testTextElementWithCorrectContent() {
+            SText text = SText.create(10, 20, "Hello");
+            draftman.visitText(text);
+
+            String svg = output();
+            assertTrue(svg.contains("<text"), "Should produce a <text> element");
+            assertTrue(svg.contains(">Hello</text>"), "Should contain the text content");
+        }
+
+        @Test
+        void testTextPositionIncludesFontSizeOffset() {
+            SText text = SText.create(10, 20, "Hi");
+            draftman.visitText(text);
+
+            String svg = output();
+            assertTrue(svg.contains("x=\"10\""), "x should match bounds.x");
+            // y = bounds.y + fontSize = 20 + 16 = 36
+            assertTrue(svg.contains("y=\"36\""), "y should be bounds.y + fontSize");
+        }
+
+        @Test
+        void testTextDefaultFontAttributes() {
+            SText text = SText.create(0, 0, "Test");
+            draftman.visitText(text);
+
+            String svg = output();
+            assertTrue(svg.contains("font-family=\"SansSerif\""), "Should use default font family");
+            assertTrue(svg.contains("font-size=\"16\""), "Should use default font size");
+            assertTrue(svg.contains("font-style=\"normal\""), "Default style should be normal");
+            assertTrue(svg.contains("font-weight=\"normal\""), "Default weight should be normal");
+        }
+
+        @Test
+        void testTextDefaultColorIsBlack() {
+            SText text = SText.create(0, 0, "Test");
+            // default ColorAttributes: filled=true, filledColor=BLACK
+            draftman.visitText(text);
+
+            String svg = output();
+            assertTrue(svg.contains("fill=\"#000000\""), "Default text color should be black");
+        }
+
+        @Test
+        void testTextWithCustomFillColor() {
+            SText text = SText.create(0, 0, "Colored");
+            text.addAttributes(new ColorAttributes(true, false, Color.RED, Color.BLACK));
+            draftman.visitText(text);
+
+            String svg = output();
+            assertTrue(svg.contains("fill=\"#ff0000\""), "Text should use filledColor");
+        }
+
+        @Test
+        void testTextWithNullColorAttributesFallsBackToBlack() {
+            SText text = SText.create(0, 0, "NoColor");
+            text.addAttributes(new ColorAttributes(false, false, null, null));
+            draftman.visitText(text);
+
+            String svg = output();
+            assertTrue(svg.contains("fill=\"#000000\""), "Should fall back to black with null colors");
+        }
+    }
+
+    // ── visitCollection ─────────────────────────────────────────────
+
+    @Nested
+    class VisitCollectionTests {
+
+        @Test
+        void testEmptyCollection() {
+            SCollection empty = SCollection.of();
+            draftman.visitCollection(empty);
+
+            String svg = output();
+            assertEquals("", svg, "Empty collection should produce no output");
+        }
+
+        @Test
+        void testCollectionVisitsAllChildren() {
+            SCollection coll = SCollection.of(
+                    SRectangle.create(0, 0, 10, 10),
+                    SCircle.create(20, 20, 5)
+            );
+            draftman.visitCollection(coll);
+
+            String svg = output();
+            assertTrue(svg.contains("<rect"), "Should visit rectangle");
+            assertTrue(svg.contains("<circle"), "Should visit circle");
+        }
+
+        @Test
+        void testNestedCollectionVisitsAllDescendants() {
+            SCollection inner = SCollection.of(
+                    SRectangle.create(0, 0, 5, 5)
+            );
+            SCollection outer = SCollection.of(
+                    inner,
+                    SCircle.create(10, 10, 3)
+            );
+            draftman.visitCollection(outer);
+
+            String svg = output();
+            assertTrue(svg.contains("<rect"), "Should visit nested rectangle");
+            assertTrue(svg.contains("<circle"), "Should visit circle at outer level");
+        }
+    }
+
+    // ── generateSVG ─────────────────────────────────────────────────
+
+    @Nested
+    class GenerateSVGTests {
+
+        @Test
+        void testGenerateSVGIncludesXmlDeclaration() {
+            SCollection model = SCollection.of();
+            draftman.generateSVG(model);
+
+            String svg = output();
+            assertTrue(svg.contains("<?xml version=\"1.0\" encoding=\"utf-8\"?>"),
+                    "Should include XML declaration");
+        }
+
+        @Test
+        void testGenerateSVGIncludesSvgNamespace() {
+            SCollection model = SCollection.of();
+            draftman.generateSVG(model);
+
+            String svg = output();
+            assertTrue(svg.contains("xmlns=\"http://www.w3.org/2000/svg\""),
+                    "Should include SVG namespace");
+        }
+
+        @Test
+        void testGenerateSVGClosesSvgTag() {
+            SCollection model = SCollection.of();
+            draftman.generateSVG(model);
+
+            String svg = output();
+            assertTrue(svg.contains("</svg>"), "Should close <svg> tag");
+        }
+
+        @Test
+        void testGenerateSVGIncludesShapeContent() {
+            SCollection model = SCollection.of(
+                    SRectangle.create(1, 2, 3, 4)
+            );
+            draftman.generateSVG(model);
+
+            String svg = output();
+            assertTrue(svg.contains("<rect"), "Should include shape elements");
+            assertTrue(svg.contains("</svg>"), "Should close SVG after shapes");
+        }
+    }
+}
Author	SHA1	Message	Date
Thibaud	b95f90b7ec	docs: mention direnv in README bootstrap section	2026-03-27 23:30:41 +01:00
Thibaud	c55d862e14	chore: add .envrc for direnv integration	2026-03-27 23:28:09 +01:00
Thibaud	df29d4f1c3	docs: add README with bootstrap, run and test instructions	2026-03-27 23:27:15 +01:00
Thibaud	25e086b62e	feat: add Nix flake for dev environment Provide a reproducible dev shell with JDK 17 and Maven 3.9.x. JDK 17 (LTS) is used since JDK 16 (project target) is non-LTS and unavailable in nixpkgs; it is fully backward-compatible with --source 16 --target 16. Maven is overridden via overlay to use the same JDK.	2026-03-27 23:25:07 +01:00
Thibaud Gasser	1cabbd0224	Merge pull request 'test: add ResizeHandle enum unit tests' (#22 ) from issue-12/resize-handle-tests into master All checks were successful CI / build-and-test (push) Successful in 18s Details Reviewed-on: #22	2026-03-27 18:06:55 +00:00
Thibaud	8635770755	test: add ResizeHandle enum unit tests All checks were successful CI / build-and-test (pull_request) Successful in 18s Details Add 10 tests covering the ResizeHandle enum: - Verify all 8 handles exist - Verify each handle name (NW, N, NE, E, SE, S, SW, W) - Verify each handle maps to the correct java.awt.Cursor constant - Verify valueOf() round-trip for all handles - Verify valueOf() with invalid name throws IllegalArgumentException Closes #12	2026-03-27 18:06:49 +00:00
Thibaud Gasser	2ccea4b107	Merge pull request 'test: add SVGDraftman direct visitor tests' (#18 ) from issue-9/svg-draftman-tests into master All checks were successful CI / build-and-test (push) Successful in 17s Details Reviewed-on: #18	2026-03-27 17:19:14 +00:00
Thibaud	3623928bb6	test: add SVGDraftman direct visitor tests All checks were successful CI / build-and-test (pull_request) Successful in 18s Details Add 27 tests covering each visit*() method in isolation: - visitRectangle: dimensions, filled/stroked/both/neither color combos - visitCircle: center calculation, fill/stroke variants - visitTriangle: polygon points, fill style, stroke style - visitText: content, position offset, font attributes, color fallbacks - visitCollection: empty, multiple children, nested collections - generateSVG: XML declaration, SVG namespace, closing tag, shape content Closes #9	2026-03-27 17:05:48 +00:00
Thibaud Gasser	8d56e941fc	Merge pull request 'test: add HTMLDraftman direct visitor tests' (#19 ) from issue-10/html-draftman-tests into master All checks were successful CI / build-and-test (push) Successful in 18s Details Reviewed-on: #19	2026-03-27 17:05:37 +00:00
Thibaud	d3c993eb2d	test: add HTMLDraftman direct visitor tests All checks were successful CI / build-and-test (pull_request) Successful in 18s Details Add 32 tests covering each visit*() method in isolation: - visitRectangle: div+id, position, dimensions, filled/stroked/both/neither - visitCircle: div+class, border-radius prefixes, position, id consistency - visitTriangle: div+class, CSS border trick, position, fill color, regression test for hashCode mismatch (this.hashCode vs shape.hashCode) - visitText: content, id consistency, position, font attrs, color, nowrap, null color fallback - visitCollection: empty, multiple children, nested - generateHTML: DOCTYPE, structure, stylesheet ref, shape content Closes #10	2026-03-27 17:02:17 +00:00
Thibaud Gasser	4f4eb00baa	Merge pull request 'Add SelectionAttributes unit tests' (#16 ) from issue-6/selection-attributes-tests into master All checks were successful CI / build-and-test (push) Successful in 17s Details Reviewed-on: #16	2026-03-27 17:01:32 +00:00
Thibaud	bcbbcef321	Add SelectionAttributes unit tests All checks were successful CI / build-and-test (pull_request) Successful in 19s Details Test core data type for selected/unselected state, default values, ID constant, interface compliance, and instance independence. 8 tests covering all public API of SelectionAttributes. Closes #6	2026-03-27 16:56:45 +00:00
Thibaud Gasser	692a03ee88	Merge pull request 'test: add ColorAttributes unit tests' (#17 ) from issue-7/color-attributes-tests into master All checks were successful CI / build-and-test (push) Successful in 17s Details Reviewed-on: #17	2026-03-27 16:56:35 +00:00
Thibaud	e83a6ba7d1	test: add ColorAttributes unit tests All checks were successful CI / build-and-test (pull_request) Successful in 18s Details Add 16 tests covering constructor behavior, fill/stroke flags and colors, null color handling, ID constant, Attributes interface, toString output, and instance independence. Closes #7	2026-03-27 17:51:13 +01:00
Thibaud Gasser	c264e7a7fc	Merge pull request 'Fix POM warnings: upgrade JaCoCo, pin dependency versions, add plugin version' (#29 ) from issue-28/fix-pom-warnings into master All checks were successful CI / build-and-test (push) Successful in 17s Details Reviewed-on: #29	2026-03-27 16:49:58 +00:00
Thibaud	f7646f99ba	fix(pom): upgrade JaCoCo, pin dependency versions, add compiler plugin version All checks were successful CI / build-and-test (pull_request) Successful in 17s Details - Upgrade jacoco-maven-plugin 0.8.11 → 0.8.13 (fixes 'Unsupported class file major version 69' with JDK 25) - Pin slf4j-api to 2.0.16 and logback-classic to 1.5.12 (replaces deprecated RELEASE) - Add maven-compiler-plugin version 3.13.0 Closes #28	2026-03-27 17:49:22 +01:00
Thibaud Gasser	29d202c156	Merge pull request 'Add parameterized ShapeContractTest for Shape interface invariants' (#15 ) from issue-8/shape-contract-test into master All checks were successful CI / build-and-test (push) Successful in 18s Details Reviewed-on: #15	2026-03-27 16:21:22 +00:00
Thibaud	7ddef4d8ab	Add parameterized ShapeContractTest for Shape interface invariants All checks were successful CI / build-and-test (pull_request) Successful in 18s Details Verify clone(), getBounds(), and translate() contracts across all Shape implementations (SRectangle, SCircle, STriangle, SText, SCollection) using @ParameterizedTest + @MethodSource. Also adds junit-jupiter-params dependency to pom.xml. Closes #8	2026-03-27 16:11:55 +00:00
Thibaud Gasser	c51ae8cfbb	Merge pull request 'fix(ci): use Maven wrapper instead of system mvn' (#26 ) from issue-25/maven-wrapper into master All checks were successful CI / build-and-test (push) Successful in 18s Details Reviewed-on: #26	2026-03-27 16:09:54 +00:00
Thibaud	bd59c76c1a	fix(ci): use gitea-upload-artifact instead of actions/upload-artifact All checks were successful CI / build-and-test (pull_request) Successful in 24s Details actions/upload-artifact@v4 refuses to run on Gitea (detected as GHES). Use the Gitea-compatible fork from gitea.com/actions/gitea-upload-artifact.	2026-03-27 17:05:18 +01:00
Thibaud	73156b69d7	fix(ci): use Maven wrapper instead of system mvn Some checks failed CI / build-and-test (pull_request) Failing after 16s Details The Gitea runner image does not include Maven, causing 'mvn: command not found'. Add Maven wrapper (mvnw) so CI downloads Maven automatically. Closes #25	2026-03-27 16:58:04 +01:00
Thibaud Gasser	2db2ed19a0	Merge pull request 'ci: add JaCoCo coverage gate and Gitea CI pipeline' (#24 ) from issue-14/jacoco-ci-pipeline into master Reviewed-on: #24	2026-03-27 15:41:41 +00:00
Thibaud	651cc4459e	ci: add JaCoCo coverage gate and Gitea CI pipeline - Add JaCoCo maven plugin (0.8.11) with prepare-agent, report, and check goals - Set 50% bundle-level line coverage gate (to be raised as test coverage grows) - Exclude UI classes (App, Controller, ShapesView, etc.) from coverage checks since they require a display and cannot be unit-tested - Add Gitea Actions workflow: checkout → JDK 16 → mvn verify → upload report Closes #14	2026-03-27 15:41:24 +00:00
Thibaud	ba37b199de	fix(html): fix hashCode for triangle The bug caused HTML class and CSS selector to have different IDs, breaking triangle rendering.	2026-03-27 16:39:10 +01:00