added tests

Backend/helper/time_test.go

@@ -8,13 +8,22 @@ import (
 
 func TestGetMonday(t *testing.T) {
 	isMonday, err := time.Parse(time.DateOnly, "2025-07-14")
+	isSunday, err := time.Parse(time.DateOnly, "2025-07-20")
 	notMonday, err := time.Parse(time.DateOnly, "2025-07-16")
 	if err != nil || isMonday.Equal(notMonday) {
 		t.Errorf("U stupid? %e", err)
 	}
-	if GetMonday(isMonday) != isMonday || GetMonday(notMonday) != isMonday {
+	if GetMonday(isMonday) != isMonday {
 		t.Error("Wrong date conversion!")
 	}
+
+	if GetMonday(notMonday) != isMonday {
+		t.Error("Wrong date conversion (notMonday)!")
+	}
+
+	if GetMonday(isSunday) != isMonday {
+		t.Error("Wrong date conversion (isSunday)!")
+	}
 }
 
 func TestFormatDuration(t *testing.T) {
@@ -26,17 +35,40 @@ func TestFormatDuration(t *testing.T) {
 		{"30min", time.Duration(30 * time.Minute)},
 		{"1h 30min", time.Duration(90 * time.Minute)},
 		{"-1h 30min", time.Duration(-90 * time.Minute)},
-		{"", 0},
+		{"0min", 0},
 	}
 	for _, tc := range testCases {
 		t.Run(tc.name, func(t *testing.T) {
-			if FormatDuration(tc.duration) != tc.name {
+			if FormatDurationFill(tc.duration, true) != tc.name {
 				t.Error("Format missmatch in Formatduration.")
 			}
 		})
 	}
 }
 
+func TestIsSameDate(t *testing.T) {
+	testCases := []struct {
+		dateA  string
+		dateB  string
+		result bool
+	}{
+		{"2025-12-01 00:00:00", "2025-12-01 00:00:00", true},
+		{"2025-12-03 00:00:00", "2025-12-02 00:00:00", false},
+		{"2025-12-03 23:45:00", "2025-12-03 00:00:00", true},
+		{"2025-12-04 24:12:00", "2025-12-04 00:12:00", false},
+	}
+
+	for _, tc := range testCases {
+		t.Run(fmt.Sprintf("IsSameDateTest: %s date", tc.dateA), func(t *testing.T) {
+			dateA, _ := time.Parse(time.DateTime, tc.dateA)
+			dateB, _ := time.Parse(time.DateTime, tc.dateB)
+			if IsSameDate(dateA, dateB) != tc.result {
+				t.Errorf("Is SameDate did not match! Result %t", IsSameDate(dateA, dateB))
+			}
+		})
+	}
+}
+
 func TestGetWorkingDays(t *testing.T) {
 	testCases := []struct {
 		start string