Source code for picogl.tests.test_legacy_mesh_binding

"""Tests for LegacyClientMeshBinding and LegacyMesh sticky bind."""

import unittest
from unittest.mock import MagicMock, patch

from picogl.backend.geometry.legacy_mesh import LegacyMesh
from picogl.backend.geometry.legacy_mesh_binding import LegacyClientMeshBinding
from picogl.renderer.initializable import Bindable



[docs]
class TestLegacyClientMeshBinding(unittest.TestCase):

[docs]
    def test_is_bindable(self):
        mesh = MagicMock(vertices=None, normals=None, colors=None, texcoords=None)
        binding = LegacyClientMeshBinding(mesh)
        self.assertIsInstance(binding, Bindable)


    @patch("picogl.backend.geometry.legacy_mesh_binding.gl_enable_legacy_client_state")
    @patch("picogl.backend.geometry.legacy_mesh_binding.gl_vertex_array_pointer")

[docs]
    def test_bind_enables_vertex_state_once(self, vertex_pointer, enable_state):
        vertices = object()
        mesh = MagicMock(vertices=vertices, normals=None, colors=None, texcoords=None)
        binding = LegacyClientMeshBinding(mesh)

        binding.bind()
        binding.bind()

        enable_state.assert_called_once()
        vertex_pointer.assert_called_once()


    @patch("picogl.backend.geometry.legacy_mesh_binding.gl_enable_legacy_client_state")
    @patch("picogl.backend.geometry.legacy_mesh_binding.gl_vertex_array_pointer")
    @patch("picogl.backend.geometry.legacy_mesh_binding.gl_disable_legacy_client_state")

[docs]
    def test_unbind_disables_vertex_state(
        self, disable_state, vertex_pointer, enable_state
    ):
        vertices = object()
        mesh = MagicMock(vertices=vertices, normals=None, colors=None, texcoords=None)
        binding = LegacyClientMeshBinding(mesh)

        binding.bind()
        binding.unbind()

        disable_state.assert_called_once()





[docs]
class TestLegacyMeshDelegation(unittest.TestCase):
    @patch("picogl.backend.geometry.legacy_mesh_binding.gl_enable_legacy_client_state")
    @patch("picogl.backend.geometry.legacy_mesh_binding.gl_vertex_array_pointer")

[docs]
    def test_legacy_mesh_bind_is_sticky(self, vertex_pointer, enable_state):
        mesh = MagicMock(vertices=object(), normals=None, colors=None, texcoords=None)
        legacy = LegacyMesh(mesh)

        legacy.bind()
        legacy.bind()

        enable_state.assert_called_once()
        vertex_pointer.assert_called_once()




if __name__ == "__main__":
    unittest.main()