Refactor MetaTableHelper to remove redundant table name prefixing with databa...

chrome/browser/meta_table_helper_unittest.cc

+// 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.
+
+// Tests for MetaTableHelper.
+
+#include "chrome/browser/meta_table_helper.h"
+#include "testing/gtest/include/gtest/gtest.h"
+
+class MetaTableHelperTest : public testing::Test {
+ public:
+  static void appendMetaTableName(const std::string& db_name,
+                                  std::string* sql) {
+    MetaTableHelper::appendMetaTableName(db_name, sql);
+  }
+};
+
+TEST_F(MetaTableHelperTest, EmptyDbName) {
+  std::string sql("select * from ");
+  MetaTableHelperTest::appendMetaTableName(std::string(), &sql);
+  EXPECT_EQ("select * from meta", sql);
+}
+
+TEST_F(MetaTableHelperTest, NonEmptyDbName) {
+  std::string sql("select * from ");
+  MetaTableHelperTest::appendMetaTableName(std::string("mydb"), &sql);
+  EXPECT_EQ("select * from mydb.meta", sql);
+}