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// 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.
#include "chrome/browser/chromeos/pipe_reader.h"
#include <errno.h>
#include "base/file_path.h"
#include "base/safe_strerror_posix.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace chromeos {
typedef testing::Test PipeReaderTest;
TEST_F(PipeReaderTest, SuccessfulReadTest) {
FilePath pipe_name("/tmp/MYFIFO");
/* Create the FIFO if it does not exist */
umask(0);
mknod(pipe_name.value().c_str(), S_IFIFO|0666, 0);
const char line[] = "foo";
pid_t pID = fork();
if (pID == 0) {
int pipe = open(pipe_name.value().c_str(), O_WRONLY);
EXPECT_NE(pipe, -1) << safe_strerror(errno);
int num_bytes = write(pipe, line, strlen(line));
EXPECT_NE(num_bytes, -1) << safe_strerror(errno);
close(pipe);
exit(1);
} else {
PipeReader reader(pipe_name);
// asking for more should still just return the amount that was written.
EXPECT_EQ(line, reader.Read(5 * strlen(line)));
}
}
TEST_F(PipeReaderTest, SuccessfulMultiLineReadTest) {
FilePath pipe_name("/tmp/TESTFIFO");
/* Create the FIFO if it does not exist */
umask(0);
mknod(pipe_name.value().c_str(), S_IFIFO|0666, 0);
const char foo[] = "foo";
const char boo[] = "boo";
std::string line(foo);
line.append("\n");
line.append(boo);
line.append("\n");
pid_t pID = fork();
if (pID == 0) {
int pipe = open(pipe_name.value().c_str(), O_WRONLY);
EXPECT_NE(pipe, -1) << safe_strerror(errno);
int num_bytes = write(pipe, line.c_str(), line.length());
EXPECT_NE(num_bytes, -1) << safe_strerror(errno);
close(pipe);
exit(1);
} else {
PipeReader reader(pipe_name);
// asking for more should still just return the amount that was written.
std::string my_foo = reader.Read(5 * line.length());
EXPECT_EQ(my_foo[my_foo.length() - 1], '\n');
my_foo.resize(my_foo.length() - 1);
EXPECT_EQ(my_foo, foo);
std::string my_boo = reader.Read(5 * line.length());
EXPECT_EQ(my_boo[my_boo.length() - 1], '\n');
my_boo.resize(my_boo.length() - 1);
EXPECT_EQ(my_boo, boo);
}
}
TEST_F(PipeReaderTest, SuccessfulMultiLineReadNoEndingNewlineTest) {
FilePath pipe_name("/tmp/TESTFIFO");
/* Create the FIFO if it does not exist */
umask(0);
mknod(pipe_name.value().c_str(), S_IFIFO|0666, 0);
const char foo[] = "foo";
const char boo[] = "boo";
std::string line(foo);
line.append("\n");
line.append(boo);
pid_t pID = fork();
if (pID == 0) {
int pipe = open(pipe_name.value().c_str(), O_WRONLY);
EXPECT_NE(pipe, -1) << safe_strerror(errno);
int num_bytes = write(pipe, line.c_str(), line.length());
EXPECT_NE(num_bytes, -1) << safe_strerror(errno);
close(pipe);
exit(1);
} else {
PipeReader reader(pipe_name);
// asking for more should still just return the amount that was written.
std::string my_foo = reader.Read(5 * line.length());
EXPECT_EQ(my_foo[my_foo.length() - 1], '\n');
my_foo.resize(my_foo.length() - 1);
EXPECT_EQ(my_foo, foo);
std::string my_boo = reader.Read(5 * line.length());
EXPECT_EQ(my_boo, boo);
}
}
} // namespace chromeos
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