1 files changed, 73 insertions, 0 deletions
diff --git a/t/helper/test-date.c b/t/helper/test-date.c
new file mode 100644
index 0000000000..63f373557e
--- /dev/null
+++ b/t/helper/test-date.c
@@ -0,0 +1,73 @@
+#include "cache.h"
+
+static const char *usage_msg = "\n"
+"  test-date show [time_t]...\n"
+"  test-date parse [date]...\n"
+"  test-date approxidate [date]...\n";
+
+static void show_dates(char **argv, struct timeval *now)
+{
+	struct strbuf buf = STRBUF_INIT;
+
+	for (; *argv; argv++) {
+		time_t t = atoi(*argv);
+		show_date_relative(t, 0, now, &buf);
+		printf("%s -> %s\n", *argv, buf.buf);
+	}
+	strbuf_release(&buf);
+}
+
+static void parse_dates(char **argv, struct timeval *now)
+{
+	struct strbuf result = STRBUF_INIT;
+
+	for (; *argv; argv++) {
+		unsigned long t;
+		int tz;
+
+		strbuf_reset(&result);
+		parse_date(*argv, &result);
+		if (sscanf(result.buf, "%lu %d", &t, &tz) == 2)
+			printf("%s -> %s\n",
+			       *argv, show_date(t, tz, DATE_MODE(ISO8601)));
+		else
+			printf("%s -> bad\n", *argv);
+	}
+	strbuf_release(&result);
+}
+
+static void parse_approxidate(char **argv, struct timeval *now)
+{
+	for (; *argv; argv++) {
+		time_t t;
+		t = approxidate_relative(*argv, now);
+		printf("%s -> %s\n", *argv, show_date(t, 0, DATE_MODE(ISO8601)));
+	}
+}
+
+int main(int argc, char **argv)
+{
+	struct timeval now;
+	const char *x;
+
+	x = getenv("TEST_DATE_NOW");
+	if (x) {
+		now.tv_sec = atoi(x);
+		now.tv_usec = 0;
+	}
+	else
+		gettimeofday(&now, NULL);
+
+	argv++;
+	if (!*argv)
+		usage(usage_msg);
+	if (!strcmp(*argv, "show"))
+		show_dates(argv+1, &now);
+	else if (!strcmp(*argv, "parse"))
+		parse_dates(argv+1, &now);
+	else if (!strcmp(*argv, "approxidate"))
+		parse_approxidate(argv+1, &now);
+	else
+		usage(usage_msg);
+	return 0;
+}