fix windows build continued

tauri/build.rs

@@ -1,3 +1,20 @@
 fn main() {
+    // On Windows, the dialogs need Common Controls v6, which a binary only gets with a manifest that
+    // asks for it: tauri-build gives one to the app, but not to the test binaries, which would stop
+    // with STATUS_ENTRYPOINT_NOT_FOUND before running any test. This gives them the same manifest
+    // (`-tests` only reaches the binaries of `tests`, hence the tests are there).
+    if std::env::var("CARGO_CFG_TARGET_OS").as_deref() == Ok("windows")
+        && std::env::var("CARGO_CFG_TARGET_ENV").as_deref() == Ok("msvc")
+    {
+        let manifest = std::path::Path::new(env!("CARGO_MANIFEST_DIR"))
+            .join("tests")
+            .join("windows-test.manifest");
+        println!("cargo:rerun-if-changed={}", manifest.display());
+        println!("cargo:rustc-link-arg-tests=/MANIFEST:EMBED");
+        println!(
+            "cargo:rustc-link-arg-tests=/MANIFESTINPUT:{}",
+            manifest.display()
+        );
+    }
     tauri_build::build()
 }