Add iterator range constructors to StringPiece.

base/string_piece_unittest.cc

 // Copyright (c) 2011 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 <string>
 
 #include "base/string16.h"
 #include "base/string_piece.h"
 #include "base/utf_string_conversions.h"
 #include "testing/gtest/include/gtest/gtest.h"
@@ skipping 635 matching lines @@
 
 TEST(StringPiece16Test, CheckConversion) {
   // Make sure that we can convert from UTF8 to UTF16 and back. We use a two
   // byte character (G clef) to test this.
   ASSERT_EQ(
       UTF16ToUTF8(
           StringPiece16(UTF8ToUTF16("\xf0\x9d\x84\x9e")).as_string()),
       "\xf0\x9d\x84\x9e");
 }
 
+TYPED_TEST(CommonStringPieceTest, CheckConstructors) {
+  TypeParam str(TestFixture::as_string("hello world"));
+  TypeParam empty;
+
+  ASSERT_TRUE(str == BasicStringPiece<TypeParam>(str));
+  ASSERT_TRUE(str == BasicStringPiece<TypeParam>(str.c_str()));
+  ASSERT_TRUE(TestFixture::as_string("hello") ==
+              BasicStringPiece<TypeParam>(str.c_str(), 5));
+  ASSERT_TRUE(empty == BasicStringPiece<TypeParam>(str.c_str(), 0));
+  ASSERT_TRUE(empty == BasicStringPiece<TypeParam>(NULL));
+  ASSERT_TRUE(empty == BasicStringPiece<TypeParam>(NULL, 0));
+  ASSERT_TRUE(empty == BasicStringPiece<TypeParam>());
+  ASSERT_TRUE(str == BasicStringPiece<TypeParam>(str.begin(), str.end()));
+  ASSERT_TRUE(empty == BasicStringPiece<TypeParam>(str.begin(), str.begin()));
+  ASSERT_TRUE(empty == BasicStringPiece<TypeParam>(empty));
+  ASSERT_TRUE(empty == BasicStringPiece<TypeParam>(empty.begin(), empty.end()));
+}
+
 }  // namespace base