Add gfx::Insets::ToString().

app/gfx/insets_unittest.cc

Index: app/gfx/insets_unittest.cc
diff --git a/app/gfx/insets_unittest.cc b/app/gfx/insets_unittest.cc
new file mode 100644
index 0000000000000000000000000000000000000000..9430a0925bf5b41f352e6cb040156c569600b822
--- /dev/null
+++ b/app/gfx/insets_unittest.cc
@@ -0,0 +1,68 @@
+// Copyright (c) 2009 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 "app/gfx/insets.h"
+
+#include <iostream>
+
+#include "testing/gtest/include/gtest/gtest.h"
+
+TEST(InsetsTest, InsetsDefault) {
+  gfx::Insets insets;
+  EXPECT_EQ(0, insets.top());
+  EXPECT_EQ(0, insets.left());
+  EXPECT_EQ(0, insets.bottom());
+  EXPECT_EQ(0, insets.right());
+  EXPECT_EQ(0, insets.width());
+  EXPECT_EQ(0, insets.height());
+  EXPECT_TRUE(insets.empty());
+}
+
+TEST(InsetsTest, Insets) {
+  gfx::Insets insets(1, 2, 3, 4);
+  EXPECT_EQ(1, insets.top());
+  EXPECT_EQ(2, insets.left());
+  EXPECT_EQ(3, insets.bottom());
+  EXPECT_EQ(4, insets.right());
+  EXPECT_EQ(6, insets.width());  // Left + right.
+  EXPECT_EQ(4, insets.height());  // Top + bottom.
+  EXPECT_FALSE(insets.empty());
+}
+
+TEST(InsetsTest, Set) {
+  gfx::Insets insets;
+  insets.Set(1, 2, 3, 4);
+  EXPECT_EQ(1, insets.top());
+  EXPECT_EQ(2, insets.left());
+  EXPECT_EQ(3, insets.bottom());
+  EXPECT_EQ(4, insets.right());
+}
+
+TEST(InsetsTest, Add) {
+  gfx::Insets insets;
+  insets.Set(1, 2, 3, 4);
+  insets += gfx::Insets(5, 6, 7, 8);
+  EXPECT_EQ(6, insets.top());
+  EXPECT_EQ(8, insets.left());
+  EXPECT_EQ(10, insets.bottom());
+  EXPECT_EQ(12, insets.right());
+}
+
+TEST(InsetsTest, Equality) {
+  gfx::Insets insets1;
+  insets1.Set(1, 2, 3, 4);
+  gfx::Insets insets2;
+  // Test operator== and operator!=.
+  EXPECT_FALSE(insets1 == insets2);
+  EXPECT_TRUE(insets1 != insets2);
+
+  insets2.Set(1, 2, 3, 4);
+  EXPECT_TRUE(insets1 == insets2);
+  EXPECT_FALSE(insets1 != insets2);
+}
+
+TEST(InsetsTest, ToString) {
+  gfx::Insets insets(1, 2, 3, 4);
+  EXPECT_EQ("1,2,3,4", insets.ToString());
+}