avdb-py/tests/TEST.md

Test Plan for ColorFeaturesPyramid

Overview

This document outlines the plan for testing and documenting the ColorFeaturesPyramid class.

1. Understanding the ColorFeaturesPyramid Class

• The ColorFeaturesPyramid class performs pyramid down-sampling and color feature analysis on images.
• It relies on the ColorFeaturesTile class for tile-based analysis.
• Key parameters:
  • uuid: Identifier for the image.
  • tilew and tileh: Dimensions of the tiles for analysis.
  • down_sampling: Number of down-sampling levels.
  • colorspace: Color space for analysis (e.g., lab, rgb, hsv).
• The class reads an image, down-samples it, and analyzes the tiles at each level.

2. Design the Test Function

Test Scope

Unit tests to verify the functionality of the ColorFeaturesPyramid class.

Test Cases

1. Initialization Test:
   • Verify that the class initializes correctly with default and custom parameters.
   • Ensure that the check_params function from utils.py is used correctly.
2. Down-Sampling Test:
   • Verify that the down-sampling process works as expected.
   • Check that the down-sampled images are saved correctly.
3. Tile Analysis Test:
   • Verify that the tile analysis produces the expected output.
   • Ensure that the histograms are computed correctly.
4. Edge Cases:
   • Test with invalid inputs (e.g., non-existent image, invalid color space).
   • Test with extreme values for parameters (e.g., very large or small tile sizes).

Testing Framework

Use pytest for writing and running the tests.

3. Document the Test Function

• Write clear docstrings for the test function.
• Include examples of how to use the ColorFeaturesPyramid class.
• Document the expected behavior and assumptions.
• Add comments to explain the purpose of each test case.

4. Plan the Implementation

• Create a new test file: test_color_features_pyramid.py.
• Implement the test function and test cases.
• Ensure the test function is modular and reusable.
• Use the check_params function from utils.py to validate parameters.

5. Verify the Plan

• Review the plan to ensure all aspects are covered.
• Confirm that the test function aligns with the purpose of the ColorFeaturesPyramid class.