1 | //===-- Unittests for readv -----------------------------------------------===// |
2 | // |
3 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
4 | // See https://llvm.org/LICENSE.txt for license information. |
5 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
6 | // |
7 | //===----------------------------------------------------------------------===// |
8 | |
9 | #include "hdr/types/struct_iovec.h" |
10 | #include "src/fcntl/open.h" |
11 | #include "src/sys/uio/readv.h" |
12 | #include "src/unistd/close.h" |
13 | #include "src/unistd/unlink.h" |
14 | #include "src/unistd/write.h" |
15 | #include "test/UnitTest/ErrnoSetterMatcher.h" |
16 | #include "test/UnitTest/Test.h" |
17 | |
18 | using namespace LIBC_NAMESPACE::testing::ErrnoSetterMatcher; |
19 | |
20 | TEST(LlvmLibcSysUioReadvTest, SmokeTest) { |
21 | const char *filename = "./LlvmLibcSysUioReadvTest" ; |
22 | int fd = LIBC_NAMESPACE::open(filename, O_WRONLY | O_CREAT, 0644); |
23 | ASSERT_THAT(fd, returns(GT(0)).with_errno(EQ(0))); |
24 | const char data[] = "Hello, World!\n" ; |
25 | ASSERT_THAT(LIBC_NAMESPACE::write(fd, data, sizeof(data)), |
26 | returns(EQ(sizeof(data))).with_errno(EQ(0))); |
27 | ASSERT_THAT(LIBC_NAMESPACE::close(fd), Succeeds()); |
28 | |
29 | fd = LIBC_NAMESPACE::open(filename, O_RDONLY); |
30 | ASSERT_THAT(fd, returns(GT(0)).with_errno(EQ(0))); |
31 | char buf0[2]; |
32 | char buf1[3]; |
33 | struct iovec iov[2]; |
34 | iov[0].iov_base = buf0; |
35 | iov[0].iov_len = 1; |
36 | iov[1].iov_base = buf1; |
37 | iov[1].iov_len = 2; |
38 | ASSERT_THAT(LIBC_NAMESPACE::readv(fd, iov, 2), |
39 | returns(EQ(ssize_t(3))).with_errno(EQ(0))); |
40 | ASSERT_THAT(LIBC_NAMESPACE::close(fd), Succeeds()); |
41 | ASSERT_THAT(LIBC_NAMESPACE::unlink(filename), |
42 | returns(EQ(ssize_t(0))).with_errno(EQ(0))); |
43 | } |
44 | |