Mojo C++ bindings: make String16 and gfx::Size available in Blink

third_party/WebKit/Source/platform/mojo/CommonCustomTypesStructTraitsTest.cpp

Index: third_party/WebKit/Source/platform/mojo/CommonCustomTypesStructTraitsTest.cpp
diff --git a/third_party/WebKit/Source/platform/mojo/CommonCustomTypesStructTraitsTest.cpp b/third_party/WebKit/Source/platform/mojo/CommonCustomTypesStructTraitsTest.cpp
new file mode 100644
index 0000000000000000000000000000000000000000..524271ac9f68150651fad20552403a1f8117b2fe
--- /dev/null
+++ b/third_party/WebKit/Source/platform/mojo/CommonCustomTypesStructTraitsTest.cpp
@@ -0,0 +1,69 @@
+// Copyright 2016 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "base/macros.h"
+#include "base/message_loop/message_loop.h"
+#include "mojo/common/test_common_custom_types.mojom-blink.h"
+#include "mojo/public/cpp/bindings/binding_set.h"
+#include "testing/gtest/include/gtest/gtest.h"
+#include "wtf/text/WTFString.h"
+
+namespace blink {
+
+namespace {
+
+class TestString16Impl : public mojo::common::test::blink::TestString16 {
+ public:
+  explicit TestString16Impl(
+      mojo::common::test::blink::TestString16Request request)
+      : m_binding(this, std::move(request)) {}
+
+  // TestString16 implementation:
+  void BounceString16(const String& in,
+                      const BounceString16Callback& callback) override {
+    callback.Run(in);
+  }
+
+ private:
+  mojo::Binding<mojo::common::test::blink::TestString16> m_binding;
+};
+
+class CommonCustomTypesStructTraitsTest : public testing::Test {
+ protected:
+  CommonCustomTypesStructTraitsTest() {}
+  ~CommonCustomTypesStructTraitsTest() override {}
+
+ private:
+  base::MessageLoop m_messageLoop;
+
+  DISALLOW_COPY_AND_ASSIGN(CommonCustomTypesStructTraitsTest);
+};
+
+}  // namespace
+
+TEST_F(CommonCustomTypesStructTraitsTest, String16) {
+  mojo::common::test::blink::TestString16Ptr ptr;
+  TestString16Impl impl(GetProxy(&ptr));
+
+  String str = String::fromUTF8("hello world");
+  String output;
+
+  ptr->BounceString16(str, &output);
+
+  ASSERT_EQ(str, output);
+}
+
+TEST_F(CommonCustomTypesStructTraitsTest, EmptyString16) {
+  mojo::common::test::blink::TestString16Ptr ptr;
+  TestString16Impl impl(GetProxy(&ptr));
+
+  String str = String::fromUTF8("");
+  String output;
+
+  ptr->BounceString16(str, &output);
+
+  ASSERT_EQ(str, output);
+}
+
+}  // namespace blink