opt: add OPT_EARLY and opt_early_parse.

[ccan] / ccan / opt / test / run-early.c

diff --git a/ccan/opt/test/run-early.c b/ccan/opt/test/run-early.c
new file mode 100644 (file)
index 0000000..439ccab
--- /dev/null
+++ b/ccan/opt/test/run-early.c
@@ -0,0 +1,77 @@
+/* With errlog == NULL, we never get a "failure". */
+#include <ccan/tap/tap.h>
+#include <stdlib.h>
+#include <ccan/opt/opt.c>
+#include <ccan/opt/usage.c>
+#include <ccan/opt/helpers.c>
+#include <ccan/opt/parse.c>
+#include "utils.h"
+
+struct opt_table some_early_table[] = {
+       OPT_EARLY_WITHOUT_ARG("--verbose|-v", test_noarg,
+                             "vvv", "Description of verbose"),
+       OPT_EARLY_WITH_ARG("--debug|-d", test_arg, show_arg,
+                             "ddd", "Description of debug"),
+       OPT_WITHOUT_ARG("-h|--hhh", test_noarg, "hhh", "Description of hhh"),
+       OPT_ENDTABLE
+};
+
+int main(int argc, char *argv[])
+{
+       const char *myname = argv[0];
+
+       plan_tests(37);
+
+       /* Simple short arg.*/
+       opt_register_noarg("-a", test_noarg, NULL, "All");
+       opt_register_early_noarg("-b", test_noarg, NULL, "All");
+
+       /* Early parsing doesn't mangle. */
+       ok1(parse_early_args(&argc, &argv, "-a", NULL));
+       ok1(argc == 2);
+       ok1(argv[0] == myname);
+       ok1(strcmp(argv[1], "-a") == 0);
+       ok1(argv[2] == NULL);
+       ok1(test_cb_called == 0);
+
+       /* ... even if it processes arg. */
+       ok1(parse_early_args(&argc, &argv, "-b", NULL));
+       ok1(argc == 2);
+       ok1(argv[0] == myname);
+       ok1(strcmp(argv[1], "-b") == 0);
+       ok1(argv[2] == NULL);
+       ok1(test_cb_called == 1);
+
+       ok1(parse_early_args(&argc, &argv, "-ab", NULL));
+       ok1(argc == 2);
+       ok1(argv[0] == myname);
+       ok1(strcmp(argv[1], "-ab") == 0);
+       ok1(argv[2] == NULL);
+       ok1(test_cb_called == 2);
+
+       ok1(parse_args(&argc, &argv, "-ab", NULL));
+       ok1(argc == 1);
+       ok1(argv[0] == myname);
+       ok1(argv[1] == NULL);
+       ok1(test_cb_called == 3);
+
+       opt_register_table(some_early_table, "Some early args");
+       ok1(parse_early_args(&argc, &argv, "--verbose", "-dddd", "-h", NULL));
+       ok1(argc == 4);
+       ok1(argv[0] == myname);
+       ok1(strcmp(argv[1], "--verbose") == 0);
+       ok1(strcmp(argv[2], "-dddd") == 0);
+       ok1(strcmp(argv[3], "-h") == 0);
+       ok1(argv[4] == NULL);
+       ok1(test_cb_called == 5);
+
+       ok1(parse_args(&argc, &argv, "--verbose", "-d", "ddd", "-h", NULL));
+       ok1(argc == 1);
+       ok1(argv[0] == myname);
+       ok1(argv[1] == NULL);
+       ok1(test_cb_called == 6);
+
+       /* parse_args allocates argv */
+       free(argv);
+       return exit_status();
+}