Add unit tests for Dart entrypoint arguments on Windows (#27497)

shell/platform/windows/client_wrapper/dart_project_unittests.cc

@@ -42,4 +42,17 @@ TEST_F(DartProjectTest, ProjectWithCustomPaths) {
   EXPECT_EQ(GetProjectAotLibraryPath(project), L"lib\\file.so");
 }
 
+TEST_F(DartProjectTest, DartEntrypointArguments) {
+  DartProject project(L"test");
+
+  std::vector<std::string> test_arguments = {"arg1", "arg2", "arg3"};
+  project.set_dart_entrypoint_arguments(test_arguments);
+
+  auto returned_arguments = project.dart_entrypoint_arguments();
+  EXPECT_EQ(returned_arguments.size(), 3U);
+  EXPECT_EQ(returned_arguments[0], "arg1");
+  EXPECT_EQ(returned_arguments[1], "arg2");
+  EXPECT_EQ(returned_arguments[2], "arg3");
+}
+
 }  // namespace flutter

shell/platform/windows/flutter_project_bundle_unittests.cc

@@ -47,6 +47,24 @@ TEST(FlutterProjectBundle, SwitchesEmpty) {
   EXPECT_EQ(project.GetSwitches().size(), 0);
 }
 
+TEST(FlutterProjectBundle, DartEntrypointArguments) {
+  FlutterDesktopEngineProperties properties = {};
+  properties.assets_path = L"foo\\flutter_assets";
+  properties.icu_data_path = L"foo\\icudtl.dat";
+
+  std::vector<const char*> test_arguments = {"arg1", "arg2"};
+  properties.dart_entrypoint_argc = test_arguments.size();
+  properties.dart_entrypoint_argv = test_arguments.data();
+
+  FlutterProjectBundle project(properties);
+
+  std::vector<std::string> retrieved_arguments =
+      project.dart_entrypoint_arguments();
+  EXPECT_EQ(retrieved_arguments.size(), 2U);
+  EXPECT_EQ(retrieved_arguments[0], "arg1");
+  EXPECT_EQ(retrieved_arguments[1], "arg2");
+}
+
 #ifndef FLUTTER_RELEASE
 TEST(FlutterProjectBundle, Switches) {
   FlutterDesktopEngineProperties properties = {};

shell/platform/windows/flutter_windows_engine_unittests.cc

@@ -19,6 +19,11 @@ std::unique_ptr<FlutterWindowsEngine> GetTestEngine() {
   properties.assets_path = L"C:\\foo\\flutter_assets";
   properties.icu_data_path = L"C:\\foo\\icudtl.dat";
   properties.aot_library_path = L"C:\\foo\\aot.so";
+
+  std::vector<const char*> test_arguments = {"arg1", "arg2"};
+  properties.dart_entrypoint_argc = test_arguments.size();
+  properties.dart_entrypoint_argv = test_arguments.data();
+
   FlutterProjectBundle project(properties);
   auto engine = std::make_unique<FlutterWindowsEngine>(project);
 
@@ -52,7 +57,9 @@ TEST(FlutterWindowsEngine, RunDoesExpectedInitialization) {
         // Spot-check arguments.
         EXPECT_STREQ(args->assets_path, "C:\\foo\\flutter_assets");
         EXPECT_STREQ(args->icu_data_path, "C:\\foo\\icudtl.dat");
-        EXPECT_EQ(args->dart_entrypoint_argc, 0);
+        EXPECT_EQ(args->dart_entrypoint_argc, 2U);
+        EXPECT_EQ(strcmp(args->dart_entrypoint_argv[0], "arg1"), 0);
+        EXPECT_EQ(strcmp(args->dart_entrypoint_argv[1], "arg2"), 0);
         EXPECT_NE(args->platform_message_callback, nullptr);
         EXPECT_NE(args->custom_task_runners, nullptr);
         EXPECT_EQ(args->custom_dart_entrypoint, nullptr);