opt: add opt_log_stderr_exit helper, and opt_usage NULL option.

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

diff --git a/ccan/opt/test/run-helpers.c b/ccan/opt/test/run-helpers.c
index 91e66374bbaf42e7e688521165cc93c343426ed5..34ffbab834cb11923d2ba7719fd1091850860b5e 100644 (file)
--- a/ccan/opt/test/run-helpers.c
+++ b/ccan/opt/test/run-helpers.c
@@ -13,6 +13,12 @@ static jmp_buf exited;
 #define printf saved_printf
 static int saved_printf(const char *fmt, ...);
 
+#define fprintf saved_fprintf
+static int saved_fprintf(FILE *ignored, const char *fmt, ...);
+
+#define vfprintf(f, fmt, ap) saved_vprintf(fmt, ap)
+static int saved_vprintf(const char *fmt, va_list ap);
+
 #include <ccan/opt/helpers.c>
 #include <ccan/opt/opt.c>
 #include <ccan/opt/usage.c>
@@ -26,15 +32,10 @@ static void reset_options(void)
 
 static char *output = NULL;
 
-static int saved_printf(const char *fmt, ...)
+static int saved_vprintf(const char *fmt, va_list ap)
 {
-       va_list ap;
        char *p;
-       int ret;
-
-       va_start(ap, fmt);
-       ret = vasprintf(&p, fmt, ap);
-       va_end(ap);
+       int ret = vasprintf(&p, fmt, ap);
 
        if (output) {
                output = realloc(output, strlen(output) + strlen(p) + 1);
@@ -42,14 +43,35 @@ static int saved_printf(const char *fmt, ...)
                free(p);
        } else
                output = p;
+       return ret;
+}
+
+static int saved_printf(const char *fmt, ...)
+{
+       va_list ap;
+       int ret;
+
+       va_start(ap, fmt);
+       ret = saved_vprintf(fmt, ap);
+       va_end(ap);
+       return ret;
+}      
+
+static int saved_fprintf(FILE *ignored, const char *fmt, ...)
+{
+       va_list ap;
+       int ret;
 
+       va_start(ap, fmt);
+       ret = saved_vprintf(fmt, ap);
+       va_end(ap);
        return ret;
 }      
 
 /* Test helpers. */
 int main(int argc, char *argv[])
 {
-       plan_tests(96);
+       plan_tests(100);
 
        /* opt_set_bool */
        {
@@ -339,5 +361,47 @@ int main(int argc, char *argv[])
                ok1(buf[OPT_SHOW_LEN] == '!');
        }
 
+       /* opt_log_stderr. */
+       {
+               reset_options();
+               opt_register_noarg("-a",
+                                  opt_usage_and_exit, "[args]", "");
+
+               argc = 2;
+               argv = malloc(sizeof(argv[0]) * 3);
+               argv[0] = "thisprog";
+               argv[1] = "--garbage";
+               argv[2] = NULL;
+               ok1(!opt_parse(&argc, argv, opt_log_stderr));
+               ok1(!strcmp(output,
+                           "thisprog: --garbage: unrecognized option\n"));
+               free(output);
+               output = NULL;
+       }
+
+       /* opt_log_stderr_exit. */
+       {
+               int exitval;
+               reset_options();
+               opt_register_noarg("-a",
+                                  opt_usage_and_exit, "[args]", "");
+               exitval = setjmp(exited);
+               if (exitval == 0) {
+                       argc = 2;
+                       argv = malloc(sizeof(argv[0]) * 3);
+                       argv[0] = "thisprog";
+                       argv[1] = "--garbage";
+                       argv[2] = NULL;
+                       opt_parse(&argc, argv, opt_log_stderr_exit);
+                       fail("opt_log_stderr_exit returned?");
+               } else {
+                       ok1(exitval - 1 == 1);
+               }
+               ok1(!strcmp(output,
+                           "thisprog: --garbage: unrecognized option\n"));
+               free(output);
+               output = NULL;
+       }
+
        return exit_status();
 }