X-Git-Url: https://git.ozlabs.org/?a=blobdiff_plain;f=ccan%2Fopt%2Ftest%2Frun-usage.c;h=aec8324474f2b2a547574d870968c92b476e3e3e;hb=106eab33eac437bdde11280e5f05f194a8fdb8c8;hp=37e8993fe8bde451bdbf713ba65c222e2b623171;hpb=b61b4b2f2c257b6e776772794969ee8526e132a8;p=ccan

diff --git a/ccan/opt/test/run-usage.c b/ccan/opt/test/run-usage.c
index 37e8993f..aec83244 100644
--- a/ccan/opt/test/run-usage.c
+++ b/ccan/opt/test/run-usage.c
@@ -1,10 +1,18 @@
-#define _GNU_SOURCE
 #include <ccan/tap/tap.h>
 #include <stdarg.h>
 #include <setjmp.h>
 #include <stdlib.h>
 #include <stdarg.h>
 #include "utils.h"
+
+/* Ensure width is sane. */
+static const char *getenv_override(const char *name)
+{
+	return "100";
+}
+
+#define getenv getenv_override
+
 #include <ccan/opt/opt.c>
 #include <ccan/opt/usage.c>
 #include <ccan/opt/helpers.c>
@@ -15,13 +23,6 @@ static char *my_cb(void *p)
 	return NULL;
 }
 
-static void reset_options(void)
-{
-	free(opt_table);
-	opt_table = NULL;
-	opt_count = opt_num_short = opt_num_short_arg = opt_num_long = 0;
-}
-
 /* Test helpers. */
 int main(int argc, char *argv[])
 {
@@ -29,7 +30,7 @@ int main(int argc, char *argv[])
 	char *longname = strdup("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa");
 	char *shortname = strdup("shortname");
 
-	plan_tests(48);
+	plan_tests(51);
 	opt_register_table(subtables, NULL);
 	opt_register_noarg("--kkk|-k", my_cb, NULL, "magic kkk option");
 	opt_register_noarg("-?", opt_usage_and_exit, "<MyArgs>...",
@@ -107,5 +108,24 @@ int main(int argc, char *argv[])
 	ok1(strstr(output, "AAAAll"));
 	free(output);
 
+	reset_options();
+	/* Valgrind nails this to 100 anyway :( */
+	setenv("COLUMNS", "100", 1);
+	opt_register_noarg("--long", my_cb, NULL, "Extremely long option which requires more than one line for its full description to be shown in the usage message.");
+	opt_register_noarg("--split", my_cb, NULL, "New line in\nlong option which requires more than one line for its full description to be shown in the usage message.");
+	output = opt_usage("longarg", NULL);
+	diag("%s", output);
+	ok1(strstr(output, "Usage: longarg \n"));
+	ok1(strstr(output, "\n"
+		   "--long   Extremely long option which requires more than one line for its full description to be\n"
+		   "         shown in the usage message.\n"));
+	ok1(strstr(output, "\n"
+		   "--split  New line in\n"
+		   "         long option which requires more than one line for its full description to be shown in the\n"
+		   "         usage message.\n"));
+	free(output);
+
+	free(shortname);
+	free(longname);
 	return exit_status();
 }