WIP not having luck at figuring out how to test this

Author: justinmc

shell/platform/darwin/ios/framework/Source/FlutterEngineTest.mm

@@ -79,4 +79,18 @@ - (void)testNotifyPluginOfDealloc {
   OCMVerify([plugin detachFromEngineForRegistrar:[OCMArg any]]);
 }
 
+// TODO(justinmc): Or is this the way to test platform channel messages? How can
+// I see if it was handled?
+/*
+- (void)testHasStrings {
+  id project = OCMClassMock([FlutterDartProject class]);
+  FlutterEngine* engine = [[FlutterEngine alloc] initWithName:@"foobar" project:project];
+  XCTAssertNotNil(engine);
+  XCTAssertNoThrow([engine.binaryMessenger
+      sendOnChannel:@"Clipboard"
+            message:[@"hasStrings" dataUsingEncoding:NSUTF8StringEncoding]
+        binaryReply:nil]);
+}
+*/
+
 @end

shell/platform/darwin/ios/framework/Source/FlutterPlatformViewsTest.mm

@@ -8,6 +8,7 @@
 #import "flutter/shell/platform/darwin/common/framework/Headers/FlutterMacros.h"
 #import "flutter/shell/platform/darwin/ios/framework/Headers/FlutterPlatformViews.h"
 #import "flutter/shell/platform/darwin/ios/framework/Source/FlutterPlatformViews_Internal.h"
+//#import "flutter/shell/platform/darwin/ios/framework/Source/FlutterPlatformPlugin.h"
 #import "flutter/shell/platform/darwin/ios/platform_view_ios.h"
 #import "third_party/ocmock/Source/OCMock/OCMock.h"
 
@@ -143,4 +144,25 @@ - (void)testCanCreatePlatformViewWithoutFlutterView {
   flutterPlatformViewsController->Reset();
 }
 
+// TODO(justinmc): I wrote this test before realizing handleMethodCall is
+// private. Is there any way around that to make this approach work?
+/*
+- (void)testHasStrings {
+  FlutterEngine* engine = [[FlutterEngine alloc] initWithName:@"test" project:nil];
+  std::unique_ptr<fml::WeakPtrFactory<FlutterEngine>> _weakFactory = std::make_unique<fml::WeakPtrFactory<FlutterEngine>>(engine);
+  FlutterPlatformPlugin* plugin = [[FlutterPlatformPlugin alloc] initWithEngine:_weakFactory->GetWeakPtr()];
+  __block bool called = false;
+  __block bool value;
+  FlutterResult result = ^(id result) {
+    called = true;
+    value = result[@"value"];
+  };
+  FlutterMethodCall* methodCall = [FlutterMethodCall methodCallWithMethodName:@"Clipboard.hasStrings" arguments:@{}];
+  plugin.handleMethodCall(methodCall, result);
+
+  XCTAssertEqual(called, true);
+  XCTAssertEqual(value, true);
+}
+*/
+
 @end