1 files changed, 48 insertions, 0 deletions
diff --git a/lib/mlibc/tests/ansi/strftime.c b/lib/mlibc/tests/ansi/strftime.c
new file mode 100644
index 0000000..69ec642
--- /dev/null
+++ b/lib/mlibc/tests/ansi/strftime.c
@@ -0,0 +1,48 @@
+#include <string.h>
+#include <time.h>
+#include <assert.h>
+#include <locale.h>
+#include <stdio.h>
+
+int main() {
+	// Date representation depends on locale, here only C is tested.
+	// Maybe consider testing more locales?
+	if (setlocale (LC_ALL, "C") == NULL) {
+		fputs("strftime testcase could not set locale, errors may be expected!", stderr);
+	}
+
+	char timebuf[16];
+	char result[16] = " 8";
+	struct tm tm;
+	tm.tm_sec = 0;
+	tm.tm_min = 17;
+	tm.tm_hour = 17;
+	tm.tm_mday = 8;
+	tm.tm_mon = 2;
+	tm.tm_year = 121;
+	tm.tm_wday = 2;
+	tm.tm_yday = 39;
+	strftime(timebuf, sizeof(timebuf), "%e", &tm);
+	assert(!strcmp(timebuf, result));
+
+	memset(timebuf, 0, sizeof(timebuf));
+	strftime(timebuf, sizeof(timebuf), "%x", &tm);
+	assert(!strcmp(timebuf, "03/08/21"));
+
+	memset(timebuf, 0, sizeof(timebuf));
+	strftime(timebuf, sizeof(timebuf), "%X", &tm);
+	assert(!strcmp(timebuf, "17:17:00"));
+
+	memset(timebuf, 0, sizeof(timebuf));
+	strftime(timebuf, sizeof(timebuf), "%a %A", &tm);
+	assert(!strcmp(timebuf, "Tue Tuesday"));
+
+	memset(timebuf, 0, sizeof(timebuf));
+	strftime(timebuf, sizeof(timebuf), "%b %B %h", &tm);
+	assert(!strcmp(timebuf, "Mar March Mar"));
+
+	memset(timebuf, 0, sizeof(timebuf));
+	assert(!strftime(timebuf, sizeof(timebuf), "%a %A %a %A %b %B %h", &tm));
+
+	return 0;
+}