Experimental alignment layout manager using a property on the views

ui/views/attributes_unittest.cc

Index: ui/views/attributes_unittest.cc
diff --git a/ui/views/attributes_unittest.cc b/ui/views/attributes_unittest.cc
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index 0000000000000000000000000000000000000000..24cd34075ccb47f9c5f8d8f4fc3e2ed696e80b40
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+++ b/ui/views/attributes_unittest.cc
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+// Copyright (c) 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 "ui/views/attributes.h"
+
+#include "testing/gtest/include/gtest/gtest.h"
+
+using AttributesTest = testing::Test;
+
+namespace views {
+
+namespace {
+
+class SpecialContent {
+ public:
+  SpecialContent() {}
+  SpecialContent(int data) : attr_data_(data) {}
+  int GetAttrData() { return attr_data_; }
+
+ private:
+  int attr_data_;
+};
+
+class OtherContent : public SpecialContent {
+ public:
+  OtherContent() {}
+  OtherContent(int data, double double_data)
+      : SpecialContent(data), double_data_(double_data) {}
+  double GetDoubleData() { return double_data_; }
+
+ private:
+  double double_data_;
+};
+
+}  // namespace
+
+using SpecialAttribute = CustomAttribute<SpecialContent>;
+using OtherAttribute = CustomAttribute<OtherContent, SpecialAttribute>;
+REGISTER_ATTRIBUTE_ID(SpecialAttribute);
+REGISTER_ATTRIBUTE_ID(OtherAttribute);
+
+TEST_F(AttributesTest, InsertTest) {
+  AttributeContainer container(nullptr);
+  EXPECT_TRUE(container.Add(
+      base::WrapUnique(new SpecialAttribute(SpecialContent(10)))));
+  EXPECT_FALSE(container.Add(
+      base::WrapUnique(new SpecialAttribute(SpecialContent(20)))));
+}
+
+TEST_F(AttributesTest, RemoveTest) {
+  AttributeContainer container(nullptr);
+  EXPECT_TRUE(container.Add(
+      base::WrapUnique(new SpecialAttribute(SpecialContent(10)))));
+  EXPECT_TRUE(container.Remove(GetAttributeId<SpecialAttribute>()));
+  EXPECT_FALSE(container.Remove(GetAttributeId<SpecialAttribute>()));
+}
+
+TEST_F(AttributesTest, FindTest) {
+  AttributeContainer container(nullptr);
+  SpecialAttribute* sa;
+  EXPECT_TRUE(container.Add(
+      base::WrapUnique(new SpecialAttribute(SpecialContent(10)))));
+  EXPECT_TRUE(container.Find(sa));
+  EXPECT_EQ(sa->GetContent().GetAttrData(), 10);
+  EXPECT_TRUE(container.Remove(GetAttributeId<SpecialAttribute>()));
+  EXPECT_FALSE(container.Find(sa));
+}
+
+TEST_F(AttributesTest, FindTest2) {
+  AttributeContainer container(nullptr);
+  OtherAttribute* oa;
+  SpecialAttribute* sa;
+  EXPECT_TRUE(container.Add(
+      base::WrapUnique(new OtherAttribute(OtherContent(20, 3.14)))));
+  EXPECT_TRUE(container.Add(
+      base::WrapUnique(new SpecialAttribute(SpecialContent(10)))));
+  EXPECT_TRUE(container.Find(oa));
+  EXPECT_EQ(oa->GetContent().GetDoubleData(), 3.14);
+  EXPECT_EQ(oa->GetContent().GetAttrData(), 20);
+  EXPECT_TRUE(container.Find(sa));
+  EXPECT_EQ(sa->GetContent().GetAttrData(), 10);
+}
+
+}  // namespace views