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/**
*
* subunit C bindings.
* Copyright (C) 2006 Robert Collins <robertc@robertcollins.net>
*
* Licensed under either the Apache License, Version 2.0 or the BSD 3-clause
* license at the users choice. A copy of both licenses are available in the
* project source as Apache-2.0 and BSD. You may not use this file except in
* compliance with one of these two licences.
*
* Unless required by applicable law or agreed to in writing, software
* distributed under these licenses is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the license you chose for the specific language governing permissions
* and limitations under that license.
**/
#include <stdlib.h>
#include <unistd.h>
#include <string.h>
#include <check.h>
#include "subunit/child.h"
/**
* Helper function to capture stdout, run some call, and check what
* was written.
* @expected the expected stdout content
* @function the function to call.
**/
static void
test_stdout_function(char const * expected,
void (*function)(void))
{
/* test that the start function emits a correct test: line. */
int bytecount;
int old_stdout;
int new_stdout[2];
char buffer[100];
/* we need a socketpair to capture stdout in */
fail_if(pipe(new_stdout), "Failed to create a socketpair.");
/* backup stdout so we can replace it */
old_stdout = dup(1);
if (old_stdout == -1) {
close(new_stdout[0]);
close(new_stdout[1]);
fail("Failed to backup stdout before replacing.");
}
/* redirect stdout so we can analyse it */
if (dup2(new_stdout[1], 1) != 1) {
close(old_stdout);
close(new_stdout[0]);
close(new_stdout[1]);
fail("Failed to redirect stdout");
}
/* yes this can block. Its a test case with < 100 bytes of output.
* DEAL.
*/
function();
/* restore stdout now */
if (dup2(old_stdout, 1) != 1) {
close(old_stdout);
close(new_stdout[0]);
close(new_stdout[1]);
fail("Failed to restore stdout");
}
/* and we dont need the write side any more */
if (close(new_stdout[1])) {
close(new_stdout[0]);
fail("Failed to close write side of socketpair.");
}
/* get the output */
bytecount = read(new_stdout[0], buffer, 100);
if (0 > bytecount) {
close(new_stdout[0]);
fail("Failed to read captured output.");
}
buffer[bytecount]='\0';
/* and we dont need the read side any more */
fail_if(close(new_stdout[0]), "Failed to close write side of socketpair.");
/* compare with expected outcome */
fail_if(strcmp(expected, buffer), "Did not get expected output [%s], got [%s]", expected, buffer);
}
static void
call_test_start(void)
{
subunit_test_start("test case");
}
START_TEST (test_start)
{
test_stdout_function("test: test case\n", call_test_start);
}
END_TEST
static void
call_test_pass(void)
{
subunit_test_pass("test case");
}
START_TEST (test_pass)
{
test_stdout_function("success: test case\n", call_test_pass);
}
END_TEST
static void
call_test_fail(void)
{
subunit_test_fail("test case", "Multiple lines\n of error\n");
}
START_TEST (test_fail)
{
test_stdout_function("failure: test case [\n"
"Multiple lines\n"
" of error\n"
"]\n",
call_test_fail);
}
END_TEST
static void
call_test_error(void)
{
subunit_test_error("test case", "Multiple lines\n of output\n");
}
START_TEST (test_error)
{
test_stdout_function("error: test case [\n"
"Multiple lines\n"
" of output\n"
"]\n",
call_test_error);
}
END_TEST
static void
call_test_skip(void)
{
subunit_test_skip("test case", "Multiple lines\n of output\n");
}
START_TEST (test_skip)
{
test_stdout_function("skip: test case [\n"
"Multiple lines\n"
" of output\n"
"]\n",
call_test_skip);
}
END_TEST
static Suite *
child_suite(void)
{
Suite *s = suite_create("subunit_child");
TCase *tc_core = tcase_create("Core");
suite_add_tcase (s, tc_core);
tcase_add_test (tc_core, test_start);
tcase_add_test (tc_core, test_pass);
tcase_add_test (tc_core, test_fail);
tcase_add_test (tc_core, test_error);
tcase_add_test (tc_core, test_skip);
return s;
}
int
main(void)
{
int nf;
Suite *s = child_suite();
SRunner *sr = srunner_create(s);
srunner_run_all(sr, CK_NORMAL);
nf = srunner_ntests_failed(sr);
srunner_free(sr);
return (nf == 0) ? EXIT_SUCCESS : EXIT_FAILURE;
}
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