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      1 /*
      2  * Copyright (C) 2009 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 
     17 #include "base/unix_file/random_access_file_utils.h"
     18 #include "base/unix_file/fd_file.h"
     19 #include "base/unix_file/string_file.h"
     20 #include "gtest/gtest.h"
     21 
     22 namespace unix_file {
     23 
     24 class RandomAccessFileUtilsTest : public testing::Test { };
     25 
     26 TEST_F(RandomAccessFileUtilsTest, CopyFile) {
     27   StringFile src;
     28   StringFile dst;
     29 
     30   const std::string content("hello");
     31   src.Assign(content);
     32   ASSERT_EQ(src.ToStringPiece(), content);
     33   ASSERT_EQ(dst.ToStringPiece(), "");
     34 
     35   ASSERT_TRUE(CopyFile(src, &dst));
     36   ASSERT_EQ(src.ToStringPiece(), dst.ToStringPiece());
     37 }
     38 
     39 TEST_F(RandomAccessFileUtilsTest, BadSrc) {
     40   FdFile src(-1);
     41   StringFile dst;
     42   ASSERT_FALSE(CopyFile(src, &dst));
     43 }
     44 
     45 TEST_F(RandomAccessFileUtilsTest, BadDst) {
     46   StringFile src;
     47   FdFile dst(-1);
     48 
     49   // We need some source content to trigger a write.
     50   // Copying an empty file is a no-op.
     51   src.Assign("hello");
     52 
     53   ASSERT_FALSE(CopyFile(src, &dst));
     54 }
     55 
     56 }  // namespace unix_file
     57