picogl.tests.test_meshdata

Unit tests for the MeshData class in the PicoGL OpenGL backend.

This module contains a comprehensive suite of unit tests for verifying the correctness, robustness, and interface of the picogl.renderer.meshdata.MeshData class, which manages OpenGL mesh data and rendering state.

The tests cover:

• Object initialization with various buffer types

• from_raw class method with different input scenarios

• OpenGL binding/unbinding operations

• Drawing operations with various modes and parameters

• Context manager functionality

• Utility methods and data conversion

• Error handling and edge cases

• Data validation and type conversion

Dependencies:

• unittest (standard library)

• unittest.mock.MagicMock for OpenGL function mocking

• numpy for test data

• picogl.renderer.meshdata.MeshData

To run the tests:

python -m unittest picogl.tests.test_meshdata

Classes

TestMeshData

Test cases for MeshData class.

Module Contents

class picogl.tests.test_meshdata.TestMeshData(methodName='runTest')

Bases: unittest.TestCase

Test cases for MeshData class.

setUp()

Set up test fixtures before each test method.

tearDown()

Clean up after each test method.

test_initialization_with_all_buffers()

Test MeshData initialization with all buffer types.

test_initialization_with_minimal_data()

Test MeshData initialization with only vertices.

test_initialization_with_none_vertices()

Test MeshData initialization with None vertices.

test_as_ribbon_args()

Test as_ribbon_args method.

test_str_representation()

Test string representation of MeshData.

test_to_float32_flat_with_valid_array()

Test _to_float32_flat with valid array.

test_to_float32_flat_with_none_required()

Test _to_float32_flat with None when required.

test_to_float32_flat_with_none_not_required()

Test _to_float32_flat with None when not required.

test_to_float32_flat_or_none()

Test _to_float32_flat_or_none method.

test_to_int32_flat_with_valid_array()

Test _to_int32_flat with valid array.

test_to_int32_flat_with_none_required()

Test _to_int32_flat with None when required.

test_default_colors_for_vertices()

Test _default_colors_for_vertices method.

test_default_normals_for_vertices()

Test _default_normals_for_vertices method.

test_from_raw_with_all_parameters()

Test from_raw with all parameters provided.

test_from_raw_with_minimal_parameters()

Test from_raw with only vertices.

test_from_raw_with_color_per_vertex_array()

Test from_raw with color_per_vertex array.

test_from_raw_with_color_per_vertex_full_array()

Test from_raw with color_per_vertex as full array.

test_from_raw_with_invalid_color_per_vertex()

Test from_raw with invalid color_per_vertex.

test_from_raw_with_invalid_uvs_length()

Test from_raw with invalid UVs length.

test_bind_with_all_buffers()

Test bind method with all buffers present.

test_bind_with_minimal_buffers()

Test bind method with only vertices.

test_bind_with_none_buffers()

Test bind method with None buffers.

test_unbind_with_all_buffers()

Test unbind method with all buffers present.

test_unbind_with_none_buffers()

Test unbind method with None buffers.

test_context_manager()

Test that MeshData can be used as a context manager.

test_draw_with_vertex_colors()

Test draw method with vertex colors.

test_draw_with_override_color()

Test draw method with override colour.

test_draw_with_fill_mode()

Test draw method with fill mode.

test_draw_with_alpha_blending()

Test draw method with alpha blending.

test_draw_with_line_width()

Test draw method with custom line width.

test_draw_with_custom_mode()

Test draw method with custom drawing mode.

test_draw_without_ebo()

Test draw method without EBO.

test_vertex_count_calculation()

Test vertex count calculation.

test_data_type_conversion()

Test that data is properly converted to correct types.

test_array_flattening()

Test that multi-dimensional arrays are properly flattened.

test_error_handling_in_from_raw()

Test error handling in from_raw method.

test_color_generation_edge_cases()

Test colour generation with edge cases.

test_normal_generation()

Test normal generation when not provided.

test_repr_string()

Test string representation of MeshData.