test/lib: add process tests

Signed-off-by: Jeremy Kerr <jk@ozlabs.org>

1 files changed, 79 insertions, 0 deletions

diff --git a/test/lib/test-process-async-stdout.c b/test/lib/test-process-async-stdout.c
new file mode 100644
index 0000000..fab9e39
--- /dev/null
+++ b/test/lib/test-process-async-stdout.c
@@ -0,0 +1,79 @@
+
+#include <stdlib.h>
+#include <string.h>
+#include <assert.h>
+
+#include <process/process.h>
+#include <waiter/waiter.h>
+#include <talloc/talloc.h>
+
+static int do_child(void)
+{
+	printf("forty two\n");
+	return 42;
+}
+
+struct test {
+	bool	exited;
+	int	exit_status;
+	char	*stdout_buf;
+	int	stdout_len;
+};
+
+static void exit_cb(struct process *process)
+{
+	struct test *test = process->data;
+
+	test->exited = true;
+	test->exit_status = process->exit_status;
+
+	test->stdout_len = process->stdout_len;
+	test->stdout_buf = talloc_steal(test, process->stdout_buf);
+}
+
+int main(int argc, char **argv)
+{
+	struct waitset *waitset;
+	struct process *process;
+	const char *child_argv[3];
+	struct test *test;
+
+	if (argc == 2 && !strcmp(argv[1], "child"))
+		return do_child();
+
+	test = talloc_zero(NULL, struct test);
+
+	waitset = waitset_create(test);
+
+	process_init(test, waitset);
+
+	child_argv[0] = argv[0];
+	child_argv[1] = "child";
+	child_argv[2] = NULL;
+
+	process = process_create(test);
+	process->path = child_argv[0];
+	process->argv = child_argv;
+	process->keep_stdout = true;
+	process->exit_cb = exit_cb;
+	process->data = test;
+
+	process_run_async(process);
+
+	for (;;) {
+		waiter_poll(waitset);
+
+		if (test->exited)
+			break;
+	}
+
+	assert(WIFEXITED(test->exit_status));
+	assert(WEXITSTATUS(test->exit_status) == 42);
+	assert(test->stdout_len == strlen("forty two\n"));
+	assert(test->stdout_buf);
+	assert(!memcmp(test->stdout_buf, "forty two\n", strlen("forty two\n")));
+
+	talloc_free(test);
+
+	return EXIT_SUCCESS;
+}