opt: fix reporting of arguments when multiple arguments exist.

[ccan] / ccan / opt / test / run-correct-reporting.c

diff --git a/ccan/opt/test/run-correct-reporting.c b/ccan/opt/test/run-correct-reporting.c
new file mode 100644 (file)
index 0000000..44f68ae
--- /dev/null
+++ b/ccan/opt/test/run-correct-reporting.c
@@ -0,0 +1,45 @@
+/* Make sure when multiple equivalent options, correct one is used for errors */
+
+#include <ccan/tap/tap.h>
+#include <stdlib.h>
+#include <ccan/opt/opt.c>
+#include <ccan/opt/usage.c>
+#include "utils.h"
+
+int main(int argc, char *argv[])
+{
+       plan_tests(12);
+
+       /* --aaa without args. */
+       opt_register_arg("-a/--aaa", test_arg, NULL, "aaa", NULL);
+       ok1(!parse_args(&argc, &argv, "--aaa", NULL));
+       ok1(strstr(err_output, ": --aaa: option requires an argument"));
+       free(err_output);
+       err_output = NULL;
+       ok1(!parse_args(&argc, &argv, "-a", NULL));
+       ok1(strstr(err_output, ": -a: option requires an argument"));
+       free(err_output);
+       err_output = NULL;
+
+       /* Multiple */
+       opt_register_arg("--bbb/-b/-c/--ccc", test_arg, NULL, "aaa", NULL);
+       ok1(!parse_args(&argc, &argv, "--bbb", NULL));
+       ok1(strstr(err_output, ": --bbb: option requires an argument"));
+       free(err_output);
+       err_output = NULL;
+       ok1(!parse_args(&argc, &argv, "-b", NULL));
+       ok1(strstr(err_output, ": -b: option requires an argument"));
+       free(err_output);
+       err_output = NULL;
+       ok1(!parse_args(&argc, &argv, "-c", NULL));
+       ok1(strstr(err_output, ": -c: option requires an argument"));
+       free(err_output);
+       err_output = NULL;
+       ok1(!parse_args(&argc, &argv, "--ccc", NULL));
+       ok1(strstr(err_output, ": --ccc: option requires an argument"));
+       free(err_output);
+       err_output = NULL;
+
+       return exit_status();
+}
+