Bump version to 0.12.15 in project and blender manifest files; add Apple Silicon support in properties.py

tests/test_addon.py

@@ -124,6 +124,53 @@ class AddonTest(unittest.TestCase):
             self.assertFalse((SOURCE_ROOT / "snapform" / name).exists(), name)
         self.assertFalse(hasattr(self.addon, "client"))
 
+    def test_mps_requires_m4_or_newer(self):
+        properties = self.addon.properties
+        parse = properties.parse_apple_silicon_generation
+        self.assertEqual(parse("Apple M2"), 2)
+        self.assertEqual(parse("Apple M4 Pro"), 4)
+        self.assertEqual(parse("Apple M10 Max"), 10)
+        self.assertIsNone(parse("Intel(R) Core(TM) i9"))
+        self.assertFalse(properties.supports_mps(3))
+        self.assertTrue(properties.supports_mps(4))
+
+    def test_unsupported_mac_hides_manifest_mps_device(self):
+        properties = self.addon.properties
+        manifest = {"devices": ["mps", "cpu"]}
+        with (
+            patch.object(
+                self.addon.runtime,
+                "environment_manifest",
+                return_value=manifest,
+            ),
+            patch.object(properties, "supports_mps", return_value=False),
+        ):
+            self.assertEqual(properties.supported_devices(), ["cpu"])
+        with (
+            patch.object(
+                self.addon.runtime,
+                "environment_manifest",
+                return_value=manifest,
+            ),
+            patch.object(properties, "supports_mps", return_value=True),
+        ):
+            self.assertEqual(properties.supported_devices(), ["mps", "cpu"])
+
+    def test_windows_keeps_default_directml_device(self):
+        properties = self.addon.properties
+        with (
+            patch.object(
+                self.addon.runtime,
+                "environment_manifest",
+                return_value={},
+            ),
+            patch.object(properties.sys, "platform", "win32"),
+        ):
+            self.assertEqual(
+                properties.supported_devices(),
+                ["directml", "cpu"],
+            )
+
     def test_import_does_not_add_addon_directories_to_sys_path(self):
         self.assertEqual(self.paths_after_import, self.paths_before_import)
         self.assertFalse(