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// Copyright 2011 Google Inc. All Rights Reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#include <gtest/gtest.h>
#ifdef _WIN32
#include <io.h>
#include <windows.h>
#endif
#include "disk_interface.h"
using namespace std;
namespace {
class DiskInterfaceTest : public testing::Test {
public:
virtual void SetUp() {
// Because we do real disk accesses, we create a temp dir within
// the system temporary directory.
// First change into the system temp dir and save it for cleanup.
start_dir_ = GetSystemTempDir();
ASSERT_EQ(0, chdir(start_dir_.c_str()));
// Then create and change into a temporary subdirectory of that.
temp_dir_name_ = MakeTempDir();
ASSERT_FALSE(temp_dir_name_.empty());
ASSERT_EQ(0, chdir(temp_dir_name_.c_str()));
}
virtual void TearDown() {
// Move out of the directory we're about to clobber.
ASSERT_EQ(0, chdir(start_dir_.c_str()));
#ifdef _WIN32
ASSERT_EQ(0, system(("rmdir /s /q " + temp_dir_name_).c_str()));
#else
ASSERT_EQ(0, system(("rm -rf " + temp_dir_name_).c_str()));
#endif
}
string GetSystemTempDir() {
#ifdef _WIN32
char buf[1024];
if (!GetTempPath(sizeof(buf), buf))
return "";
return buf;
#else
const char* tempdir = getenv("TMPDIR");
if (tempdir)
return tempdir;
return "/tmp";
#endif
}
string MakeTempDir() {
char name_template[] = "DiskInterfaceTest-XXXXXX";
char* name = mkdtemp(name_template);
return name ? name : "";
}
string start_dir_;
string temp_dir_name_;
RealDiskInterface disk_;
};
TEST_F(DiskInterfaceTest, Stat) {
EXPECT_EQ(0, disk_.Stat("nosuchfile"));
#ifdef _WIN32
// TODO: find something that stat fails on for Windows.
#else
string too_long_name(512, 'x');
EXPECT_EQ(-1, disk_.Stat(too_long_name));
#endif
#ifdef _WIN32
ASSERT_EQ(0, system("cmd.exe /c echo hi > file"));
#else
ASSERT_EQ(0, system("touch file"));
#endif
EXPECT_GT(disk_.Stat("file"), 1);
}
TEST_F(DiskInterfaceTest, ReadFile) {
string err;
EXPECT_EQ("", disk_.ReadFile("foobar", &err));
EXPECT_EQ("", err);
const char* kTestFile = "testfile";
FILE* f = fopen(kTestFile, "wb");
ASSERT_TRUE(f);
const char* kTestContent = "test content\nok";
fprintf(f, "%s", kTestContent);
ASSERT_EQ(0, fclose(f));
EXPECT_EQ(kTestContent, disk_.ReadFile(kTestFile, &err));
EXPECT_EQ("", err);
}
TEST_F(DiskInterfaceTest, MakeDirs) {
EXPECT_TRUE(disk_.MakeDirs("path/with/double//slash/"));
}
TEST_F(DiskInterfaceTest, RemoveFile) {
const char* kFileName = "file-to-remove";
#ifdef _WIN32
string cmd = "cmd /c echo hi > ";
#else
string cmd = "touch ";
#endif
cmd += kFileName;
ASSERT_EQ(0, system(cmd.c_str()));
EXPECT_EQ(0, disk_.RemoveFile(kFileName));
EXPECT_EQ(1, disk_.RemoveFile(kFileName));
EXPECT_EQ(1, disk_.RemoveFile("does not exist"));
}
} // namespace
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