Add test for composable type authoring support

.github/workflows/clippy.yml

@@ -151,6 +151,10 @@ jobs:
         run:  cargo clippy -p test_component
       - name: Clippy test_component_client
         run:  cargo clippy -p test_component_client
+      - name: Clippy test_composable
+        run:  cargo clippy -p test_composable
+      - name: Clippy test_composable_client
+        run:  cargo clippy -p test_composable_client
       - name: Clippy test_const_fields
         run:  cargo clippy -p test_const_fields
       - name: Clippy test_const_params

.github/workflows/test.yml

@@ -177,6 +177,10 @@ jobs:
         run:  cargo test -p test_component --target ${{ matrix.target }} ${{ matrix.etc }}
       - name: Test test_component_client
         run:  cargo test -p test_component_client --target ${{ matrix.target }} ${{ matrix.etc }}
+      - name: Test test_composable
+        run:  cargo test -p test_composable --target ${{ matrix.target }} ${{ matrix.etc }}
+      - name: Test test_composable_client
+        run:  cargo test -p test_composable_client --target ${{ matrix.target }} ${{ matrix.etc }}
       - name: Test test_const_fields
         run:  cargo test -p test_const_fields --target ${{ matrix.target }} ${{ matrix.etc }}
       - name: Test test_const_params
@@ -251,12 +255,12 @@ jobs:
         run:  cargo test -p test_reference_float --target ${{ matrix.target }} ${{ matrix.etc }}
       - name: Test test_registry
         run:  cargo test -p test_registry --target ${{ matrix.target }} ${{ matrix.etc }}
+      - name: Clean
+        run:  cargo clean
       - name: Test test_registry_default
         run:  cargo test -p test_registry_default --target ${{ matrix.target }} ${{ matrix.etc }}
       - name: Test test_reserved
         run:  cargo test -p test_reserved --target ${{ matrix.target }} ${{ matrix.etc }}
-      - name: Clean
-        run:  cargo clean
       - name: Test test_resources
         run:  cargo test -p test_resources --target ${{ matrix.target }} ${{ matrix.etc }}
       - name: Test test_result

crates/tests/winrt/composable/Cargo.toml

@@ -0,0 +1,24 @@
+[package]
+name = "test_composable"
+version = "0.0.0"
+edition = "2021"
+publish = false
+
+[lib]
+crate-type = ["cdylib"]
+doc = false
+doctest = false
+
+[build-dependencies.windows-bindgen]
+workspace = true
+
+[dependencies.windows-core]
+workspace = true
+
+[dependencies.windows]
+workspace = true
+features = [
+    "implement",
+    "Foundation",
+    "Win32_System_WinRT",
+]

crates/tests/winrt/composable/build.rs

@@ -0,0 +1,33 @@
+fn main() {
+    let mut command = std::process::Command::new("midlrt.exe");
+    command.args([
+        "/winrt",
+        "/nomidl",
+        "/h",
+        "nul",
+        "/metadata_dir",
+        "../../../libs/bindgen/default",
+        "/reference",
+        "../../../libs/bindgen/default/Windows.winmd",
+        "/winmd",
+        "metadata.winmd",
+        "src/metadata.idl",
+    ]);
+
+    if !command.status().unwrap().success() {
+        panic!("Failed to run midlrt");
+    }
+
+    windows_bindgen::bindgen([
+        "--in",
+        "metadata.winmd",
+        "--out",
+        "src/bindings.rs",
+        "--filter",
+        "test_composable",
+        "--config",
+        "implement",
+        "no-bindgen-comment",
+    ])
+    .unwrap();
+}