Adds ash::MaterialDesignController

ash/material_design/material_design_controller_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 <string>
+
+#include "ash/ash_switches.h"
+#include "ash/material_design/material_design_controller.h"
+#include "ash/test/material_design_controller_test_api.h"
+#include "base/command_line.h"
+#include "base/macros.h"
+#include "testing/gtest/include/gtest/gtest.h"
+
+namespace ash {
+namespace {
+
+// Test fixture for the MaterialDesignController class.
+class MaterialDesignControllerTest : public testing::Test {
+ public:
+  MaterialDesignControllerTest();
+  ~MaterialDesignControllerTest() override;
+
+ protected:
+  // testing::Test:
+  void SetUp() override;
+  void TearDown() override;
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(MaterialDesignControllerTest);
+};
+
+MaterialDesignControllerTest::MaterialDesignControllerTest() {}
+
+MaterialDesignControllerTest::~MaterialDesignControllerTest() {}
+
+void MaterialDesignControllerTest::SetUp() {
+  testing::Test::SetUp();
+  MaterialDesignController::Initialize();
+}
+
+void MaterialDesignControllerTest::TearDown() {
+  test::MaterialDesignControllerTestAPI::Uninitialize();
+  testing::Test::TearDown();
+}
+
+class MaterialDesignControllerTestMaterial
+    : public MaterialDesignControllerTest {
+ public:
+  MaterialDesignControllerTestMaterial() {
+    base::CommandLine::ForCurrentProcess()->AppendSwitch(
+        switches::kAshEnableMaterialDesign);

[oshima, 2016/04/26 16:06:58]

These additional flags will be carried over to other tests. You should
explicitly clear them, or wait for https://codereview.chromium.org/1908633002/

Is there a reason to do this in ctor, not in SetUp()?

[varkha, 2016/04/27 21:00:09]

Done.

+  }
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(MaterialDesignControllerTestMaterial);
+};
+
+class MaterialDesignControllerTestNonMaterial
+    : public MaterialDesignControllerTest {
+ public:
+  MaterialDesignControllerTestNonMaterial() {
+    base::CommandLine::ForCurrentProcess()->AppendSwitch(
+        switches::kAshDisableMaterialDesign);
+  }
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(MaterialDesignControllerTestNonMaterial);
+};
+
+class MaterialDesignControllerTestBothEnabledAndDisabled
+    : public MaterialDesignControllerTest {
+ public:
+  MaterialDesignControllerTestBothEnabledAndDisabled() {
+    base::CommandLine::ForCurrentProcess()->AppendSwitch(
+        switches::kAshEnableMaterialDesign);
+    base::CommandLine::ForCurrentProcess()->AppendSwitch(
+        switches::kAshDisableMaterialDesign);
+  }
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(MaterialDesignControllerTestBothEnabledAndDisabled);
+};
+
+}  // namespace
+
+// Verify the current mode is reported as the default mode when no command line
+// flag is added.
+TEST_F(MaterialDesignControllerTest, NoCommandLineSwitchMapsToDefaultMode) {
+  ASSERT_FALSE(base::CommandLine::ForCurrentProcess()->HasSwitch(
+      switches::kAshEnableMaterialDesign));
+  ASSERT_FALSE(base::CommandLine::ForCurrentProcess()->HasSwitch(
+      switches::kAshDisableMaterialDesign));
+  EXPECT_EQ(test::MaterialDesignControllerTestAPI::DefaultMode(),
+            MaterialDesignController::IsMaterial());
+}
+
+// Verify that MaterialDesignController::IsModeMaterial() will be true when
+// initialized with command line flag "ash-enable-md".
+TEST_F(MaterialDesignControllerTestMaterial, CommandLineSwitch) {
+  EXPECT_TRUE(MaterialDesignController::IsMaterial());
+}
+
+// Verify that MaterialDesignController::IsModeMaterial() will be false when
+// initialized with command line flag "ash-disable-md".
+TEST_F(MaterialDesignControllerTestNonMaterial, CommandLineSwitch) {
+  EXPECT_FALSE(MaterialDesignController::IsMaterial());
+}
+
+// Verify that MaterialDesignController::IsModeMaterial() will be false when
+// initialized with both command line flags "ash-enable-md --ash-disable-md".
+TEST_F(MaterialDesignControllerTestBothEnabledAndDisabled, CommandLineSwitch) {
+  EXPECT_FALSE(MaterialDesignController::IsMaterial());
+}
+
+}  // namespace ash