Add cli tests

internal/cli/cli_test.go

@@ -0,0 +1,83 @@
+package cli
+
+import (
+	"bytes"
+	"log"
+	"os"
+	"strings"
+	"testing"
+	"time"
+)
+
+func TestRunNotComplete(t *testing.T) {
+	// Test if there is no log message if modification date is current
+	var logContent bytes.Buffer
+
+	log.SetOutput(&logContent)
+
+	directory, _ := createStatusFile()
+
+	Run(&directory)
+
+	if logContent.String() != "" {
+		log.Fatalf("Expected empty logmessage")
+	}
+}
+
+func TestRunComplete(t *testing.T) {
+	// Test if there are log messages if modification date is in the past
+	var logContent bytes.Buffer
+
+	log.SetOutput(&logContent)
+
+	directory, fileName := createStatusFile()
+
+	setModificationDate(fileName, "28.02.2022")
+
+	Run(&directory)
+
+	if logContent.String() == "" {
+		log.Fatalf("Expected logmessage")
+	}
+	if !strings.Contains(logContent.String(), "Work duration: 0.25h") {
+		log.Fatalf("Expected duration in logmessage")
+	}
+	if !strings.Contains(logContent.String(), "Start: 07:45:00, End: 08:00:00") {
+		log.Fatalf("Expected start and end date in logmessage")
+	}
+
+}
+
+func setModificationDate(fileName string, dateString string) {
+	// Set modification time to past
+	timestamp, _ := time.Parse(dateLayout, dateString)
+
+	err3 := os.Chtimes(fileName, timestamp, timestamp)
+	if err3 != nil {
+		log.Fatal(err3)
+	}
+}
+
+func createStatusFile() (string, string) {
+	// Create a temporary directory
+	directory, err := os.MkdirTemp("", "unittest")
+	if err != nil {
+		log.Fatal(err)
+	}
+	defer os.Remove(directory)
+
+	fileName := directory + "/status"
+
+	// Create a test status file
+	file, err2 := os.Create(fileName)
+	if err2 != nil {
+		log.Fatal(err2)
+	}
+	defer file.Close()
+
+	// Add test content to status file
+	file.WriteString("2022-03-01T07:45:00+01:00\n")
+	file.WriteString("2022-03-01T08:00:00+01:00\n")
+
+	return directory, fileName
+}