Framing for a DOMStorage backend that does not depend on in-process-webkit.

webkit/dom_storage/dom_storage_map_unittest.cc

+// Copyright (c) 2012 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/utf_string_conversions.h"
+#include "testing/gtest/include/gtest/gtest.h"
+#include "webkit/dom_storage/dom_storage_map.h"
+
+namespace dom_storage {
+
+TEST(DomStorageMapTest, DomStorageMapBasics) {
+  const string16 kKey(ASCIIToUTF16("key"));
+  const string16 kValue(ASCIIToUTF16("value"));
+  const string16 kKey2(ASCIIToUTF16("key2"));
+  const string16 kValue2(ASCIIToUTF16("value2"));
+
+  scoped_refptr<DomStorageMap> map(new DomStorageMap);
+  string16 old_value;
+  NullableString16 old_nullable_value;
+  ValuesMap swap;
+  scoped_refptr<DomStorageMap> copy;
+
+  // Check the behavior of an empty map.
+  EXPECT_EQ(0u, map->Length());
+  EXPECT_TRUE(map->Key(0).is_null());
+  EXPECT_TRUE(map->Key(100).is_null());
+  EXPECT_TRUE(map->GetItem(kKey).is_null());
+  EXPECT_FALSE(map->RemoveItem(kKey, &old_value));
+  copy = map->DeepCopy();
+  EXPECT_EQ(0u, copy->Length());
+  map->SwapValues(&swap);
+  EXPECT_TRUE(swap.empty());
+
+  // Check the behavior of a map containing some values.
+  EXPECT_TRUE(map->SetItem(kKey, kValue, &old_nullable_value));
+  EXPECT_TRUE(old_nullable_value.is_null());
+  EXPECT_EQ(1u, map->Length());
+  EXPECT_EQ(kKey, map->Key(0).string());
+  EXPECT_TRUE(map->Key(1).is_null());
+  EXPECT_EQ(kValue, map->GetItem(kKey).string());
+  EXPECT_TRUE(map->GetItem(kKey2).is_null());
+  EXPECT_TRUE(map->RemoveItem(kKey, &old_value));
+  EXPECT_EQ(kValue, old_value);
+  old_value.clear();
+
+  EXPECT_TRUE(map->SetItem(kKey, kValue, &old_nullable_value));
+  EXPECT_TRUE(map->SetItem(kKey2, kValue, &old_nullable_value));
+  EXPECT_TRUE(old_nullable_value.is_null());
+  EXPECT_TRUE(map->SetItem(kKey2, kValue2, &old_nullable_value));
+  EXPECT_EQ(kValue, old_nullable_value.string());
+  EXPECT_EQ(2u, map->Length());
+
+  copy = map->DeepCopy();
+  EXPECT_EQ(2u, copy->Length());
+  EXPECT_EQ(kValue, copy->GetItem(kKey).string());
+  EXPECT_EQ(kValue2, copy->GetItem(kKey2).string());
+
+  map->SwapValues(&swap);
+  EXPECT_EQ(2ul, swap.size());
+  EXPECT_EQ(0u, map->Length());
+}
+
+}  // namespace dom_storage