Vendor dependencies for 0.3.0 release

vendor/objc2-metal/tests/runs_with_core_graphics.rs

@@ -0,0 +1,18 @@
+#![cfg(feature = "MTLDevice")]
+use objc2::rc::Retained;
+use objc2_metal::MTLCreateSystemDefaultDevice;
+
+#[link(name = "CoreGraphics", kind = "framework")]
+extern "C" {}
+
+#[test]
+#[ignore = "doesn't work in CI"]
+fn test_create_default() {
+    let _ = unsafe { Retained::from_raw(MTLCreateSystemDefaultDevice()).unwrap() };
+}
+
+#[test]
+#[cfg(target_os = "macos")]
+fn get_all() {
+    let _ = unsafe { Retained::from_raw(objc2_metal::MTLCopyAllDevices().as_ptr()).unwrap() };
+}