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-rw-r--r--test/syscalls/linux/write.cc224
1 files changed, 0 insertions, 224 deletions
diff --git a/test/syscalls/linux/write.cc b/test/syscalls/linux/write.cc
deleted file mode 100644
index 77bcfbb8a..000000000
--- a/test/syscalls/linux/write.cc
+++ /dev/null
@@ -1,224 +0,0 @@
-// Copyright 2018 The gVisor Authors.
-//
-// 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 <errno.h>
-#include <fcntl.h>
-#include <signal.h>
-#include <sys/resource.h>
-#include <sys/stat.h>
-#include <sys/types.h>
-#include <time.h>
-#include <unistd.h>
-
-#include "gmock/gmock.h"
-#include "gtest/gtest.h"
-#include "test/util/cleanup.h"
-#include "test/util/temp_path.h"
-#include "test/util/test_util.h"
-
-namespace gvisor {
-namespace testing {
-
-namespace {
-
-// TODO(gvisor.dev/issue/2370): This test is currently very rudimentary.
-class WriteTest : public ::testing::Test {
- public:
- ssize_t WriteBytes(int fd, int bytes) {
- std::vector<char> buf(bytes);
- std::fill(buf.begin(), buf.end(), 'a');
- return WriteFd(fd, buf.data(), buf.size());
- }
-};
-
-TEST_F(WriteTest, WriteNoExceedsRLimit) {
- // Get the current rlimit and restore after test run.
- struct rlimit initial_lim;
- ASSERT_THAT(getrlimit(RLIMIT_FSIZE, &initial_lim), SyscallSucceeds());
- auto cleanup = Cleanup([&initial_lim] {
- EXPECT_THAT(setrlimit(RLIMIT_FSIZE, &initial_lim), SyscallSucceeds());
- });
-
- int fd;
- struct rlimit setlim;
- const int target_lim = 1024;
- setlim.rlim_cur = target_lim;
- setlim.rlim_max = RLIM_INFINITY;
- const std::string pathname = NewTempAbsPath();
- ASSERT_THAT(fd = open(pathname.c_str(), O_WRONLY | O_CREAT, S_IRWXU),
- SyscallSucceeds());
- ASSERT_THAT(setrlimit(RLIMIT_FSIZE, &setlim), SyscallSucceeds());
-
- EXPECT_THAT(WriteBytes(fd, target_lim), SyscallSucceedsWithValue(target_lim));
-
- std::vector<char> buf(target_lim + 1);
- std::fill(buf.begin(), buf.end(), 'a');
- EXPECT_THAT(pwrite(fd, buf.data(), target_lim, 1), SyscallSucceeds());
- EXPECT_THAT(pwrite64(fd, buf.data(), target_lim, 1), SyscallSucceeds());
-
- EXPECT_THAT(close(fd), SyscallSucceeds());
-}
-
-TEST_F(WriteTest, WriteExceedsRLimit) {
- // Get the current rlimit and restore after test run.
- struct rlimit initial_lim;
- ASSERT_THAT(getrlimit(RLIMIT_FSIZE, &initial_lim), SyscallSucceeds());
- auto cleanup = Cleanup([&initial_lim] {
- EXPECT_THAT(setrlimit(RLIMIT_FSIZE, &initial_lim), SyscallSucceeds());
- });
-
- int fd;
- sigset_t filesize_mask;
- sigemptyset(&filesize_mask);
- sigaddset(&filesize_mask, SIGXFSZ);
-
- struct rlimit setlim;
- const int target_lim = 1024;
- setlim.rlim_cur = target_lim;
- setlim.rlim_max = RLIM_INFINITY;
-
- const std::string pathname = NewTempAbsPath();
- ASSERT_THAT(fd = open(pathname.c_str(), O_WRONLY | O_CREAT, S_IRWXU),
- SyscallSucceeds());
- ASSERT_THAT(setrlimit(RLIMIT_FSIZE, &setlim), SyscallSucceeds());
- ASSERT_THAT(sigprocmask(SIG_BLOCK, &filesize_mask, nullptr),
- SyscallSucceeds());
- std::vector<char> buf(target_lim + 2);
- std::fill(buf.begin(), buf.end(), 'a');
-
- EXPECT_THAT(write(fd, buf.data(), target_lim + 1),
- SyscallSucceedsWithValue(target_lim));
- EXPECT_THAT(write(fd, buf.data(), 1), SyscallFailsWithErrno(EFBIG));
- siginfo_t info;
- struct timespec timelimit = {0, 0};
- ASSERT_THAT(RetryEINTR(sigtimedwait)(&filesize_mask, &info, &timelimit),
- SyscallSucceedsWithValue(SIGXFSZ));
- EXPECT_EQ(info.si_code, SI_USER);
- EXPECT_EQ(info.si_pid, getpid());
- EXPECT_EQ(info.si_uid, getuid());
-
- EXPECT_THAT(pwrite(fd, buf.data(), target_lim + 1, 1),
- SyscallSucceedsWithValue(target_lim - 1));
- EXPECT_THAT(pwrite(fd, buf.data(), 1, target_lim),
- SyscallFailsWithErrno(EFBIG));
- ASSERT_THAT(RetryEINTR(sigtimedwait)(&filesize_mask, &info, &timelimit),
- SyscallSucceedsWithValue(SIGXFSZ));
- EXPECT_EQ(info.si_code, SI_USER);
- EXPECT_EQ(info.si_pid, getpid());
- EXPECT_EQ(info.si_uid, getuid());
-
- EXPECT_THAT(pwrite64(fd, buf.data(), target_lim + 1, 1),
- SyscallSucceedsWithValue(target_lim - 1));
- EXPECT_THAT(pwrite64(fd, buf.data(), 1, target_lim),
- SyscallFailsWithErrno(EFBIG));
- ASSERT_THAT(RetryEINTR(sigtimedwait)(&filesize_mask, &info, &timelimit),
- SyscallSucceedsWithValue(SIGXFSZ));
- EXPECT_EQ(info.si_code, SI_USER);
- EXPECT_EQ(info.si_pid, getpid());
- EXPECT_EQ(info.si_uid, getuid());
-
- ASSERT_THAT(sigprocmask(SIG_UNBLOCK, &filesize_mask, nullptr),
- SyscallSucceeds());
- EXPECT_THAT(close(fd), SyscallSucceeds());
-}
-
-TEST_F(WriteTest, WriteIncrementOffset) {
- TempPath tmpfile = ASSERT_NO_ERRNO_AND_VALUE(TempPath::CreateFile());
- FileDescriptor f =
- ASSERT_NO_ERRNO_AND_VALUE(Open(tmpfile.path().c_str(), O_WRONLY));
- int fd = f.get();
-
- EXPECT_THAT(WriteBytes(fd, 0), SyscallSucceedsWithValue(0));
- EXPECT_THAT(lseek(fd, 0, SEEK_CUR), SyscallSucceedsWithValue(0));
-
- const int bytes_total = 1024;
-
- EXPECT_THAT(WriteBytes(fd, bytes_total),
- SyscallSucceedsWithValue(bytes_total));
- EXPECT_THAT(lseek(fd, 0, SEEK_CUR), SyscallSucceedsWithValue(bytes_total));
-}
-
-TEST_F(WriteTest, WriteIncrementOffsetSeek) {
- const std::string data = "hello world\n";
- TempPath tmpfile = ASSERT_NO_ERRNO_AND_VALUE(TempPath::CreateFileWith(
- GetAbsoluteTestTmpdir(), data, TempPath::kDefaultFileMode));
- FileDescriptor f =
- ASSERT_NO_ERRNO_AND_VALUE(Open(tmpfile.path().c_str(), O_WRONLY));
- int fd = f.get();
-
- const int seek_offset = data.size() / 2;
- ASSERT_THAT(lseek(fd, seek_offset, SEEK_SET),
- SyscallSucceedsWithValue(seek_offset));
-
- const int write_bytes = 512;
- EXPECT_THAT(WriteBytes(fd, write_bytes),
- SyscallSucceedsWithValue(write_bytes));
- EXPECT_THAT(lseek(fd, 0, SEEK_CUR),
- SyscallSucceedsWithValue(seek_offset + write_bytes));
-}
-
-TEST_F(WriteTest, WriteIncrementOffsetAppend) {
- const std::string data = "hello world\n";
- TempPath tmpfile = ASSERT_NO_ERRNO_AND_VALUE(TempPath::CreateFileWith(
- GetAbsoluteTestTmpdir(), data, TempPath::kDefaultFileMode));
- FileDescriptor f = ASSERT_NO_ERRNO_AND_VALUE(
- Open(tmpfile.path().c_str(), O_WRONLY | O_APPEND));
- int fd = f.get();
-
- EXPECT_THAT(WriteBytes(fd, 1024), SyscallSucceedsWithValue(1024));
- EXPECT_THAT(lseek(fd, 0, SEEK_CUR),
- SyscallSucceedsWithValue(data.size() + 1024));
-}
-
-TEST_F(WriteTest, WriteIncrementOffsetEOF) {
- const std::string data = "hello world\n";
- const TempPath tmpfile = ASSERT_NO_ERRNO_AND_VALUE(TempPath::CreateFileWith(
- GetAbsoluteTestTmpdir(), data, TempPath::kDefaultFileMode));
- FileDescriptor f =
- ASSERT_NO_ERRNO_AND_VALUE(Open(tmpfile.path().c_str(), O_WRONLY));
- int fd = f.get();
-
- EXPECT_THAT(lseek(fd, 0, SEEK_END), SyscallSucceedsWithValue(data.size()));
-
- EXPECT_THAT(WriteBytes(fd, 1024), SyscallSucceedsWithValue(1024));
- EXPECT_THAT(lseek(fd, 0, SEEK_END),
- SyscallSucceedsWithValue(data.size() + 1024));
-}
-
-TEST_F(WriteTest, PwriteNoChangeOffset) {
- TempPath tmpfile = ASSERT_NO_ERRNO_AND_VALUE(TempPath::CreateFile());
- FileDescriptor f =
- ASSERT_NO_ERRNO_AND_VALUE(Open(tmpfile.path().c_str(), O_WRONLY));
- int fd = f.get();
-
- const std::string data = "hello world\n";
-
- EXPECT_THAT(pwrite(fd, data.data(), data.size(), 0),
- SyscallSucceedsWithValue(data.size()));
- EXPECT_THAT(lseek(fd, 0, SEEK_CUR), SyscallSucceedsWithValue(0));
-
- const int bytes_total = 1024;
- ASSERT_THAT(WriteBytes(fd, bytes_total),
- SyscallSucceedsWithValue(bytes_total));
- ASSERT_THAT(lseek(fd, 0, SEEK_CUR), SyscallSucceedsWithValue(bytes_total));
-
- EXPECT_THAT(pwrite(fd, data.data(), data.size(), bytes_total),
- SyscallSucceedsWithValue(data.size()));
- EXPECT_THAT(lseek(fd, 0, SEEK_CUR), SyscallSucceedsWithValue(bytes_total));
-}
-
-} // namespace
-
-} // namespace testing
-} // namespace gvisor
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