Add Chromium-only Blender WebEngine parity work

blender-5.2.0/tests/python/bl_pyapi_gpu.py

@@ -0,0 +1,48 @@
+# SPDX-FileCopyrightText: 2026 Blender Authors
+#
+# SPDX-License-Identifier: GPL-2.0-or-later
+#
+# blender -b --factory-startup --python tests/python/bl_pyapi_gpu.py
+
+import unittest
+
+import gpu
+
+
+class TestGpuInit(unittest.TestCase):
+    def test_gpu_module_is_usable_after_init(self):
+        gpu.init()
+
+        # GPU module functions will raise SystemError if the GPU has not been initialized.
+        gpu.platform.vendor_get()
+        gpu.platform.renderer_get()
+        gpu.platform.version_get()
+        gpu.platform.device_type_get()
+        gpu.types.GPUTexture(size=(1024, 1024), format="RGBA8")
+
+
+class TestGpuFrameBuffer(unittest.TestCase):
+    def test_read_color_bounds_check(self):
+        gpu.init()
+
+        # Setup a framebuffer.
+        tex = gpu.types.GPUTexture(size=(16, 16), format="RGBA8")
+        fb = gpu.types.GPUFrameBuffer(color_slots=[tex])
+
+        with fb.bind():
+            # Reading within bounds should succeed.
+            buf = fb.read_color(0, 0, 1, 1, 4, 0, "UBYTE")
+
+            # Reading outside bounds should raise ValueError.
+            with self.assertRaises(ValueError):
+                fb.read_color(-1, 0, 1, 1, 4, 0, "UBYTE")
+
+
+if __name__ == "__main__":
+    import sys
+
+    sys.argv = [__file__] + (
+        sys.argv[sys.argv.index("--") + 1:] if "--" in sys.argv else []
+    )
+
+    unittest.main()