From ba3186c8bea21cf5027a26103b44523a969cffa3 Mon Sep 17 00:00:00 2001
From: Bastian Dehn <hhaalo@arcor.de>
Date: Sun, 9 Jun 2024 17:34:12 +0200
Subject: [PATCH] add weekday tests

---
 src/time_format.c         |  34 ++++++++++++
 src/time_format.h         |   1 +
 tests/time_format_tests.c | 109 +++++++++++++++++++++++++++++++++++++-
 3 files changed, 143 insertions(+), 1 deletion(-)

diff --git a/src/time_format.c b/src/time_format.c
index 1e2ad72..7480426 100644
--- a/src/time_format.c
+++ b/src/time_format.c
@@ -13,4 +13,38 @@ void get_time_str(time_t time, char* timestr)
 
 	gmtime_r(&time, &time_cal);
 	sprintf(timestr, "%02d:%02d", time_cal.tm_hour, time_cal.tm_min);
+}
+
+void get_weekday(time_t time, char* weekday)
+{
+	struct tm weekday_num;
+	localtime_r(&time, &weekday_num);
+
+
+	switch (weekday_num.tm_wday) {
+	case 0:
+		sprintf(weekday, "%s", "Sonntag");
+		break;
+	case 1:
+		sprintf(weekday, "%s", "Montag");
+		break;
+	case 2:
+		sprintf(weekday, "%s", "Dienstag");
+		break;
+	case 3:
+		sprintf(weekday, "%s", "Mittwoch");
+		break;
+	case 4:
+		sprintf(weekday, "%s", "Donnerstag");
+		break;
+	case 5:
+		sprintf(weekday, "%s", "Freitag");
+		break;
+	case 6:
+		sprintf(weekday, "%s", "Samstag");
+		break;
+	default:
+		sprintf(weekday, "%s", "Unknown");
+		break;
+	}
 }
\ No newline at end of file
diff --git a/src/time_format.h b/src/time_format.h
index cae614e..8cf0e7d 100644
--- a/src/time_format.h
+++ b/src/time_format.h
@@ -3,5 +3,6 @@
 #include <time.h>
 
 void get_time_str(time_t time, char* timestr);
+void get_weekday(time_t time, char* weekday);
 
 #endif
\ No newline at end of file
diff --git a/tests/time_format_tests.c b/tests/time_format_tests.c
index 4096397..2c7d664 100644
--- a/tests/time_format_tests.c
+++ b/tests/time_format_tests.c
@@ -4,6 +4,7 @@
 #include <stdint.h>
 #include <setjmp.h>
 #include <cmocka.h>
+#include <string.h>
 #include "../src/time_format.h"
 
 void get_zero_hour_and_fifteen_minutes()
@@ -48,12 +49,118 @@ void get_minus_five_minutes()
 	timestring = NULL;
 }
 
+void get_thursday()
+{
+	char* weekday = malloc(sizeof(char) * 11);
+	memset(weekday, 0, 11);
+	time_t day = 0;
+
+	get_weekday(day, weekday);
+
+	assert_string_equal(weekday, "Donnerstag");
+
+	free(weekday);
+	weekday = NULL;
+}
+
+void get_friday()
+{
+	char* weekday = malloc(sizeof(char) * 11);
+	memset(weekday, 0, 11);
+	time_t day = 86400;
+
+	get_weekday(day, weekday);
+
+	assert_string_equal(weekday, "Freitag");
+
+	free(weekday);
+	weekday = NULL;
+}
+
+void get_saturday()
+{
+	char* weekday = malloc(sizeof(char) * 11);
+	memset(weekday, 0, 11);
+	time_t day = 172800;
+
+	get_weekday(day, weekday);
+
+	assert_string_equal(weekday, "Samstag");
+
+	free(weekday);
+	weekday = NULL;
+}
+
+void get_sunday()
+{
+	char* weekday = malloc(sizeof(char) * 11);
+	memset(weekday, 0, 11);
+	time_t day = 259200;
+
+	get_weekday(day, weekday);
+
+	assert_string_equal(weekday, "Sonntag");
+
+	free(weekday);
+	weekday = NULL;
+}
+
+void get_monday()
+{
+	char* weekday = malloc(sizeof(char) * 11);
+	memset(weekday, 0, 11);
+	time_t day = 345600;
+
+	get_weekday(day, weekday);
+
+	assert_string_equal(weekday, "Montag");
+
+	free(weekday);
+	weekday = NULL;
+}
+
+void get_thuesday()
+{
+	char* weekday = malloc(sizeof(char) * 11);
+	memset(weekday, 0, 11);
+	time_t day = 432000;
+
+	get_weekday(day, weekday);
+
+	assert_string_equal(weekday, "Dienstag");
+
+	free(weekday);
+	weekday = NULL;
+}
+
+void get_wednesday()
+{
+	char* weekday = malloc(sizeof(char) * 11);
+	memset(weekday, 0, 11);
+	time_t day = 518400;
+
+	get_weekday(day, weekday);
+
+	assert_string_equal(weekday, "Mittwoch");
+
+	free(weekday);
+	weekday = NULL;
+}
+
 int main()
 {
 	const struct CMUnitTest tests[] = {
 		cmocka_unit_test(get_zero_hour_and_fifteen_minutes),
 		cmocka_unit_test(get_five_hour_fourty_five),
-		cmocka_unit_test(get_minus_five_minutes)
+		cmocka_unit_test(get_minus_five_minutes),
+		cmocka_unit_test(get_thursday),
+		cmocka_unit_test(get_friday),
+		cmocka_unit_test(get_saturday),
+		cmocka_unit_test(get_sunday),
+		cmocka_unit_test(get_monday),
+		cmocka_unit_test(get_thuesday),
+		cmocka_unit_test(get_wednesday),
+
 	};
 
 	return cmocka_run_group_tests(tests, NULL, NULL);
-- 
2.39.5