EnumTraits for base::i18n::TextDirection.

mojo/common/common_custom_types_unittest.cc

 // 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/files/file_path.h"
 #include "base/files/scoped_temp_dir.h"
 #include "base/memory/ptr_util.h"
 #include "base/message_loop/message_loop.h"
 #include "base/numerics/safe_math.h"
 #include "base/run_loop.h"
@@ skipping 152 matching lines @@
 
   // TestFile implementation:
   void BounceFile(base::File in, const BounceFileCallback& callback) override {
     callback.Run(std::move(in));
   }
 
  private:
   mojo::Binding<TestFile> binding_;
 };
 
+class TestTextDirectionImpl : public TestTextDirection {
+ public:
+  explicit TestTextDirectionImpl(TestTextDirectionRequest request)
+      : binding_(this, std::move(request)) {}
+
+  // TestTextDirection:
+  void BounceTextDirection(
+      base::i18n::TextDirection in,
+      const BounceTextDirectionCallback& callback) override {
+    callback.Run(in);
+  }
+
+ private:
+  mojo::Binding<TestTextDirection> binding_;
+};
+
 class CommonCustomTypesTest : public testing::Test {
  protected:
   CommonCustomTypesTest() {}
   ~CommonCustomTypesTest() override {}
 
  private:
   base::MessageLoop message_loop_;
 
   DISALLOW_COPY_AND_ASSIGN(CommonCustomTypesTest);
 };
@@ skipping 206 matching lines @@
   ASSERT_TRUE(temp_dir.CreateUniqueTempDir());
   // Test that |file_out| is set to an invalid file.
   base::File file_out(
       temp_dir.GetPath().AppendASCII("test_file.txt"),
       base::File::FLAG_CREATE | base::File::FLAG_WRITE | base::File::FLAG_READ);
 
   ASSERT_TRUE(ptr->BounceFile(base::File(), &file_out));
   EXPECT_FALSE(file_out.IsValid());
 }
 
+TEST_F(CommonCustomTypesTest, TextDirection) {
+  base::i18n::TextDirection kTestDirections[] = {base::i18n::LEFT_TO_RIGHT,
+                                                 base::i18n::RIGHT_TO_LEFT,
+                                                 base::i18n::UNKNOWN_DIRECTION};
+
+  TestTextDirectionPtr ptr;
+  TestTextDirectionImpl impl(MakeRequest(&ptr));
+
+  for (size_t i = 0; i < arraysize(kTestDirections); i++) {
+    base::i18n::TextDirection direction_out;
+    ASSERT_TRUE(ptr->BounceTextDirection(kTestDirections[i], &direction_out));
+    EXPECT_EQ(kTestDirections[i], direction_out);
+  }
+}
+
 }  // namespace test
 }  // namespace common
 }  // namespace mojo