1 Commits

Author SHA1 Message Date
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

View File

@@ -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*