TEST: updated tests for material and shader

Author: m-agour

fury/tests/test_material.py

@@ -1,4 +1,3 @@
-from PIL import Image
 import numpy as np
 
 from fury import material, window
@@ -44,6 +43,8 @@ def test_create_mesh_material():
     assert mat.color_mode == "vertex"
     assert mat.flat_shading is True
 
+
+
     verts, faces = prim_sphere()
 
     geo = buffer_to_geometry(

fury/tests/test_shader.py

@@ -0,0 +1,65 @@
+import numpy as np
+from pygfx import Mesh
+from pygfx.renderers.wgpu import register_wgpu_render_function
+from tests.renderers.test_shader_composer import LocalBaseShader
+
+from fury.actor import sphere
+from fury.io import load_wgsl
+from fury.material import MeshBasicMaterial
+from fury.shader import MeshBasicShader, MeshPhongShader
+
+
+def test_shader():
+
+    class CustomBasicMaterial(MeshBasicMaterial):
+        def __init__(self, **kwargs):
+            super().__init__(**kwargs)
+
+    class CustomPhongMaterial(MeshBasicMaterial):
+        def __init__(self, **kwargs):
+            super().__init__(**kwargs)
+
+    register_wgpu_render_function(Mesh, CustomBasicMaterial)(MeshBasicShader)
+    register_wgpu_render_function(Mesh, CustomPhongMaterial)(MeshPhongShader)
+
+    try:
+        register_wgpu_render_function(Mesh, CustomBasicMaterial)(MeshBasicShader)
+        register_wgpu_render_function(Mesh, CustomPhongMaterial)(MeshPhongShader)
+    except ValueError:
+        ...
+    else:
+        raise AssertionError("Shoudn't be able to register the same material twice.")
+
+
+def test_wgsl():
+
+    shader_code = load_wgsl("mesh.wgsl")
+
+    assert isinstance(shader_code, str)
+    assert "fn vs_main" in shader_code
+    assert "fn fs_main" in shader_code
+
+
+    class CustomShader(LocalBaseShader):
+        def __init__(self, **kwargs):
+            super().__init__(**kwargs)
+
+        def get_code(self):
+            return load_wgsl("mesh.wgsl")
+
+    actor = sphere(centers=np.array([[0, 0, 0]]), colors=np.array([[1, 0, 0]]))
+    kwargs = {
+        "blending_code": "placeholder",
+        "write_pick": True,
+        "indexer": None,
+        "used_uv": {"uv": None},
+    }
+    cs = MeshBasicShader(actor)
+
+
+    assert isinstance(cs.get_code(), str)
+
+    gen_sh_code = cs.generate_wgsl(**kwargs)
+    assert isinstance(gen_sh_code, str)
+
+    assert "placeholder" in gen_sh_code