194 lines
5.0 KiB
Markdown
194 lines
5.0 KiB
Markdown
# Text Texture Generator - Test Suite Summary
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## Overview
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Comprehensive test suite for the Text Texture Generator Blender addon, focusing on core text processing and fitting algorithms.
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## Test Structure
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### Framework Setup
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- **pytest** configuration with Blender mocking
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- Mock classes for `bpy` module and Blender data structures
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- Comprehensive fixtures for common test inputs
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- Separate test markers for unit and integration tests
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### Files Created
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1. `tests/conftest.py` - pytest configuration and shared fixtures
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2. `tests/pytest.ini` - pytest settings and markers
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3. `tests/fixtures/sample_data.py` - test data and constants
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4. `tests/unit/test_text_processor.py` - unit tests for text processing
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5. `tests/unit/test_text_fitting.py` - unit tests for text fitting algorithms
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6. `tests/integration/test_text_generation_pipeline.py` - integration tests
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## Unit Tests Coverage
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### Text Processor (`test_text_processor.py`)
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- **TestWrapTextToWidth** (5 tests)
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- Empty/whitespace text handling
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- Text that fits within constraints
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- Text requiring wrapping
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- Single word too long edge case
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- **TestProcessTextContent** (5 tests)
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- Newline normalization
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- Multiple newline collapsing
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- Mixed whitespace handling
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- Empty string handling
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- No-newline passthrough
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- **TestCalculateTextMetrics** (2 tests)
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- Basic metrics calculation
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- Font error handling fallback
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- **TestRectanglesOverlap** (5 tests)
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- Non-overlapping rectangles
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- Clear overlaps
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- Edge touching scenarios
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- Identical rectangles
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- Containment cases
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- **TestFindNonOverlappingPosition** (3 tests)
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- Finding position with no existing blocks
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- Avoiding existing blocks
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- Fallback when no space available
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- **TestValidateTextRendering** (4 tests)
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- Valid positions validation
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- Negative position detection
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- Boundary exceed detection
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- Zero dimension detection
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- **TestOptimizeTextLayout** (3 tests)
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- No overlaps optimization
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- Overlap resolution
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- Empty list handling
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### Text Fitting (`test_text_fitting.py`)
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- **TestLargestRectangleInHistogram** (6 tests)
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- Simple histogram processing
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- Increasing/decreasing patterns
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- Empty histogram edge case
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- Single bar scenarios
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- Zero height handling
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- Pyramid-shaped histograms
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- **TestCalculateAvailableTextArea** (4 tests)
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- No overlays scenario
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- Single overlay
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- Multiple overlays
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- Full area coverage
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- **TestCalculateTextPosition** (4 tests)
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- Center alignment
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- Top-left alignment
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- Bottom-right alignment
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- Invalid alignment fallback
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- **TestFindOptimalFontSize** (3 tests)
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- Basic optimal size finding
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- Font loading error handling
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- Tight constraint scenarios
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- **TestCalculateTextScaling** (3 tests)
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- Basic scaling calculation
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- Different width/height ratios
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- Zero dimension handling
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- **TestCheckTextOverlap** (5 tests)
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- No overlaps detection
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- Single overlap detection
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- Multiple overlaps
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- Empty/single position edge cases
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- **TestResolveTextConflicts** (4 tests)
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- No conflicts scenario
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- Vertical movement resolution
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- Horizontal movement fallback
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- Empty list handling
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## Integration Tests Coverage
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### Text Generation Pipeline (`test_text_generation_pipeline.py`)
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- **TestTextGenerationPipeline** (4 tests)
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- Complete text generation workflow
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- Overlap detection and resolution workflow
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- Text metrics and fitting integration
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- Area calculation and layout optimization
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- **TestErrorHandlingIntegration** (2 tests)
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- Font error graceful degradation
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- Text processing chain error handling
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## Key Features Tested
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### Core Algorithms
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✅ Text wrapping and newline normalization
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✅ Largest rectangle in histogram algorithm
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✅ Text positioning and alignment
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✅ Optimal font size calculation
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✅ Text scaling calculations
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✅ Overlap detection and conflict resolution
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✅ Available area calculation with overlays
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✅ Layout optimization
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### Error Handling
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✅ Font loading failures
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✅ PIL/Pillow import errors
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✅ Invalid input handling
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✅ Boundary condition validation
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✅ Graceful degradation patterns
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### Integration Points
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✅ Module interaction workflows
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✅ End-to-end text processing pipeline
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✅ Error propagation and handling
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✅ Mock Blender API integration
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## Test Execution
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All tests designed to run independently of Blender installation using comprehensive mocking system. Tests can be executed with:
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```bash
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# Run all tests
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cd tests && python -m pytest -v
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# Run only unit tests
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cd tests && python -m pytest unit/ -v
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# Run only integration tests
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cd tests && python -m pytest integration/ -v
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# Run specific test markers
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cd tests && python -m pytest -m unit -v
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cd tests && python -m pytest -m integration -v
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```
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## Coverage Summary
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- **66 total test cases** across unit and integration tests
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- **Core text processing functions**: 23 tests
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- **Text fitting algorithms**: 35 tests
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- **Integration workflows**: 6 tests
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- **Error handling**: 2 tests
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The test suite provides comprehensive coverage of the most critical functionality for text processing and fitting in the Text Texture Generator addon.
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