From: Bastian Dehn <hhaalo@arcor.de>
Date: Tue, 11 Nov 2025 16:54:52 +0000 (+0100)
Subject: add valid date tests
X-Git-Tag: 1.3.8^2~6^2~4
X-Git-Url: https://gitweb.hhaalo.de/?a=commitdiff_plain;h=83f8ad963f0784f289ad3f8fb83da2a984260fc5;p=feierabend.git

add valid date tests
---

diff --git a/src/time_format.c b/src/time_format.c
index 4014e01..e79911d 100644
--- a/src/time_format.c
+++ b/src/time_format.c
@@ -1,6 +1,7 @@
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
+#include <regex.h>
 #include "time_format.h"
 
 #define ONE_HOUR 3600
@@ -9,6 +10,8 @@
 #define SHORT_WEEKDAY_STR_LEN 3
 #define MAX_TIME_STR_LENGTH 7
 
+#define DATE_REGEX "[0-9]\\{4\\}-\\([0][1-9]\\|1[0-2]\\)-\\([0-2][1-9]\\|[1-3]0\\|3[01]\\)"
+
 void get_time_str(time_t timediff, char* timestr)
 {
 	memset(timestr, 0, MAX_TIME_STR_LENGTH);
@@ -182,4 +185,31 @@ int get_day_from_str(const char* date)
 	free(str_first_pos);
 	str_first_pos = NULL;
 	return value;
+}
+
+bool validate_datestring(const char* date)
+{
+	regex_t* date_regex = malloc(sizeof(regex_t));
+	if (date_regex == NULL)
+		return false;
+
+	int comp_success = regcomp(date_regex, DATE_REGEX, REG_NOSUB);
+	if (comp_success != 0) {
+		free(date_regex);
+		return false;
+	}
+
+	int match = regexec(date_regex, date, 0, NULL, 0);
+
+	regfree(date_regex);
+	free(date_regex);
+	date_regex = NULL;
+
+	if (match == REG_NOMATCH)
+		return false;
+
+	if (match == 0)
+		return true;
+
+	return false;
 }
\ No newline at end of file
diff --git a/src/time_format.h b/src/time_format.h
index 669a94c..712cfaf 100644
--- a/src/time_format.h
+++ b/src/time_format.h
@@ -1,5 +1,6 @@
 #ifndef TIME_FORMAT_H
 #define TIME_FORMAT_H
+#include <stdbool.h>
 #include <time.h>
 
 void get_time_str(time_t timediff, char* timestr);
@@ -10,5 +11,6 @@ void get_short_weekday(int wday, char* weekday);
 int get_year_from_str(const char* date);
 int get_month_from_str(const char* date);
 int get_day_from_str(const char* date);
+bool validate_datestring(const char* date);
 
 #endif
\ No newline at end of file
diff --git a/tests/time_format_tests.c b/tests/time_format_tests.c
index 1b1d731..6014dfb 100644
--- a/tests/time_format_tests.c
+++ b/tests/time_format_tests.c
@@ -328,6 +328,23 @@ void get_dat_from_date()
 	assert_int_equal(result, 24);
 }
 
+void validate_valid_date_string(const char* date)
+{
+	bool valid = validate_datestring(date);
+
+	assert_true(valid);
+}
+
+void validate_valid_date_string_tests()
+{
+	validate_valid_date_string("2025-01-01");
+	validate_valid_date_string("2025-01-31");
+	validate_valid_date_string("2025-10-01");
+	validate_valid_date_string("2025-10-31");
+	validate_valid_date_string("2025-12-01");
+	validate_valid_date_string("2025-12-31");
+}
+
 int main()
 {
 	const struct CMUnitTest tests[] = {
@@ -356,7 +373,8 @@ int main()
 		cmocka_unit_test(get_seconds_from_str_minus),
 		cmocka_unit_test(get_year_from_date),
 		cmocka_unit_test(get_month_from_date),
-		cmocka_unit_test(get_dat_from_date)
+		cmocka_unit_test(get_dat_from_date),
+		cmocka_unit_test(validate_valid_date_string_tests)
 	};
 
 	return cmocka_run_group_tests(tests, NULL, NULL);