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test_io: Verify that read() on an O_WRONLY fd fails with EBADF

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This commit is contained in:
Andreas Kling 2020-01-03 03:33:34 +01:00
parent 0a1865ebc6
commit c19f840f32
1 changed files with 12 additions and 0 deletions
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12
Userland/test_io.cpp
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@ -53,6 +53,17 @@ void test_write_to_directory()
ASSERT(rc == 0);
}
void test_read_from_writeonly()
{
char buffer[BUFSIZ];
int fd = open("/tmp/xxxx123", O_CREAT | O_WRONLY);
ASSERT(fd >= 0);
int rc;
EXPECT_ERROR_3(EBADF, read, fd, buffer, sizeof(buffer));
rc = close(fd);
ASSERT(rc == 0);
}
int main(int, char**)
{
int rc;
@ -66,6 +77,7 @@ int main(int, char**)
test_read_from_directory();
test_write_to_directory();
test_read_from_writeonly();
return 0;
}