diff options
Diffstat (limited to 'src/test')
| -rw-r--r-- | src/test/test_util.c | 45 |
1 files changed, 33 insertions, 12 deletions
diff --git a/src/test/test_util.c b/src/test/test_util.c index 86ff747acf..cf116effd1 100644 --- a/src/test/test_util.c +++ b/src/test/test_util.c @@ -2447,8 +2447,9 @@ test_util_exit_status(void *ptr) #endif #ifndef _WIN32 -/** Check that fgets waits until a full line, and not return a partial line, on - * a EAGAIN with a non-blocking pipe */ +/* Check that fgets with a non-blocking pipe returns partial lines and sets + * EAGAIN, returns full lines and sets no error, and returns NULL on EOF and + * sets no error */ static void test_util_fgets_eagain(void *ptr) { @@ -2457,17 +2458,19 @@ test_util_fgets_eagain(void *ptr) ssize_t retlen; char *retptr; FILE *test_stream = NULL; - char buf[10]; + char buf[4] = { 0 }; (void)ptr; + errno = 0; + /* Set up a pipe to test on */ retval = pipe(test_pipe); - tt_int_op(retval, >=, 0); + tt_int_op(retval, ==, 0); /* Set up the read-end to be non-blocking */ retval = fcntl(test_pipe[0], F_SETFL, O_NONBLOCK); - tt_int_op(retval, >=, 0); + tt_int_op(retval, ==, 0); /* Open it as a stdio stream */ test_stream = fdopen(test_pipe[0], "r"); @@ -2477,51 +2480,69 @@ test_util_fgets_eagain(void *ptr) retlen = write(test_pipe[1], "A", 1); tt_int_op(retlen, ==, 1); retptr = fgets(buf, sizeof(buf), test_stream); - tt_want(retptr == NULL); tt_int_op(errno, ==, EAGAIN); + tt_ptr_op(retptr, ==, buf); + tt_str_op(buf, ==, "A"); + errno = 0; /* Send in the rest */ retlen = write(test_pipe[1], "B\n", 2); tt_int_op(retlen, ==, 2); retptr = fgets(buf, sizeof(buf), test_stream); + tt_int_op(errno, ==, 0); tt_ptr_op(retptr, ==, buf); - tt_str_op(buf, ==, "AB\n"); + tt_str_op(buf, ==, "B\n"); + errno = 0; /* Send in a full line */ retlen = write(test_pipe[1], "CD\n", 3); tt_int_op(retlen, ==, 3); retptr = fgets(buf, sizeof(buf), test_stream); + tt_int_op(errno, ==, 0); tt_ptr_op(retptr, ==, buf); tt_str_op(buf, ==, "CD\n"); + errno = 0; /* Send in a partial line */ retlen = write(test_pipe[1], "E", 1); tt_int_op(retlen, ==, 1); retptr = fgets(buf, sizeof(buf), test_stream); - tt_ptr_op(retptr, ==, NULL); tt_int_op(errno, ==, EAGAIN); + tt_ptr_op(retptr, ==, buf); + tt_str_op(buf, ==, "E"); + errno = 0; /* Send in the rest */ retlen = write(test_pipe[1], "F\n", 2); tt_int_op(retlen, ==, 2); retptr = fgets(buf, sizeof(buf), test_stream); + tt_int_op(errno, ==, 0); tt_ptr_op(retptr, ==, buf); - tt_str_op(buf, ==, "EF\n"); + tt_str_op(buf, ==, "F\n"); + errno = 0; /* Send in a full line and close */ retlen = write(test_pipe[1], "GH", 2); tt_int_op(retlen, ==, 2); retval = close(test_pipe[1]); - test_pipe[1] = -1; tt_int_op(retval, ==, 0); + test_pipe[1] = -1; retptr = fgets(buf, sizeof(buf), test_stream); + tt_int_op(errno, ==, 0); tt_ptr_op(retptr, ==, buf); tt_str_op(buf, ==, "GH"); + errno = 0; /* Check for EOF */ retptr = fgets(buf, sizeof(buf), test_stream); + tt_int_op(errno, ==, 0); tt_ptr_op(retptr, ==, NULL); - tt_int_op(feof(test_stream), >, 0); + retval = feof(test_stream); + tt_int_op(retval, !=, 0); + errno = 0; + + /* Check that buf is unchanged according to C99 and C11 */ + tt_str_op(buf, ==, "GH"); done: if (test_stream != NULL) @@ -3782,7 +3803,7 @@ struct testcase_t util_tests[] = { #endif #ifndef _WIN32 UTIL_TEST(exit_status, 0), - UTIL_TEST(fgets_eagain, TT_SKIP), + UTIL_TEST(fgets_eagain, 0), #endif UTIL_TEST(spawn_background_ok, 0), UTIL_TEST(spawn_background_fail, 0), |