reworked time Calculations

Backend/models/workDay_test.go

@@ -0,0 +1,82 @@
+package models_test
+
+import (
+	"arbeitszeitmessung/helper"
+	"arbeitszeitmessung/models"
+	"log"
+	"testing"
+	"time"
+)
+
+func CatchError[T any](val T, err error) T {
+	if err != nil {
+		log.Fatalln(err)
+	}
+	return val
+}
+
+var testWorkDay = models.WorkDay{
+	Day:      CatchError(time.Parse("2006-01-02", "2025-01-01")),
+	Bookings: testBookings8hrs,
+	TimeFrom: CatchError(time.Parse("2006-01-02 15:04", "2025-01-01 08:00")),
+	TimeTo:   CatchError(time.Parse("2006-01-02 15:04", "2025-01-01 16:30")),
+	Absence:  models.Absence{},
+}
+
+func TestCalcRealWorkTime(t *testing.T) {
+	workTime := testWorkDay.CalcRealWorkTime(testUser)
+	if workTime != time.Hour*8 {
+		t.Errorf("Calc Worktime Default not working, time should be 8h, but was %s", helper.FormatDuration(workTime))
+	}
+}
+
+func TestCalcWorkPauseDiff(t *testing.T) {
+	type testCase struct {
+		Name              string
+		bookings          []models.Booking
+		expectedWorkTime  time.Duration
+		expectedPauseTime time.Duration
+		expectedOvertime  time.Duration
+	}
+
+	testCases := []testCase{testCase{
+		Name:              "6hrs no pause",
+		bookings:          testBookings6hrs,
+		expectedWorkTime:  6 * time.Hour,
+		expectedPauseTime: 0,
+		expectedOvertime:  -2 * time.Hour,
+	},
+		testCase{
+			Name:              "8hrs - 30min pause",
+			bookings:          testBookings8hrs,
+			expectedWorkTime:  7*time.Hour + 30*time.Minute,
+			expectedPauseTime: 30 * time.Minute,
+			expectedOvertime:  -30 * time.Minute,
+		},
+		testCase{
+			Name:              "10hrs - 45min pause",
+			bookings:          testBookings10hrs,
+			expectedWorkTime:  9*time.Hour + 15*time.Minute,
+			expectedPauseTime: 45 * time.Minute,
+			expectedOvertime:  1*time.Hour + 15*time.Minute,
+		}}
+
+	for _, test := range testCases {
+		t.Run(test.Name, func(t *testing.T) {
+			testWorkDay.Bookings = test.bookings
+			testWorkDay.CalcRealWorkTime(testUser)
+			testWorkDay.CalcWorkPauseDiff(testUser)
+			testWorkDay.CalcOvertime(testUser)
+			workTime, pauseTime, overTime := testWorkDay.GetAllWorkTimes(testUser)
+			if workTime != test.expectedWorkTime {
+				t.Errorf("Calculated wrong workTime: should be %s, but was %s", helper.FormatDuration(test.expectedWorkTime), helper.FormatDuration(workTime))
+			}
+			if pauseTime != test.expectedPauseTime {
+				t.Errorf("Calculated wrong pauseTime: should be %s, but was %s", helper.FormatDuration(test.expectedPauseTime), helper.FormatDuration(pauseTime))
+			}
+			if overTime != test.expectedOvertime {
+				t.Errorf("Calculated wrong overtime: should be %s, but was %s", helper.FormatDuration(test.expectedOvertime), helper.FormatDuration(overTime))
+			}
+		})
+	}
+}