Fix unit test style in Source/wtf/.

Source/wtf/text/StringImplTest.cpp

 /*
  * Copyright (C) 2012 Apple Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
  *    documentation and/or other materials provided with the distribution.
  *
  * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
  * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
  * THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #include "config.h"
+#include "wtf/text/StringImpl.h"
 
-#include "wtf/text/StringImpl.h"
 #include "wtf/text/WTFString.h"
 #include <gtest/gtest.h>
 
-namespace {
+namespace WTF {
 
-TEST(WTF, StringImplCreate8Bit)
+TEST(StringImplTest, Create8Bit)
 {
     RefPtr<StringImpl> testStringImpl = StringImpl::create("1224");
-    ASSERT_TRUE(testStringImpl->is8Bit());
+    EXPECT_TRUE(testStringImpl->is8Bit());
 }
 
-TEST(WTF, StringImplLatin1CaseFoldTable)
+TEST(StringImplTest, Latin1CaseFoldTable)
 {
     LChar symbol = 0xff;
     while (symbol--) {
-        EXPECT_EQ(WTF::Unicode::foldCase(symbol), StringImpl::latin1CaseFoldTable[symbol]);
+        EXPECT_EQ(Unicode::foldCase(symbol), StringImpl::latin1CaseFoldTable[symbol]);
     }
 }
 
-
-} // namespace
+} // namespace WTF