Add common Unix time functions

common.go

@@ -21,6 +21,7 @@ import (
 	"os"
 	"strconv"
 	"strings"
+	"time"
 )
 
 const (
@@ -320,3 +321,16 @@ func OutputCSV(path string, data [][]string) error {
 	defer writer.Flush()
 	return nil
 }
+
+func UnixTimestampToTime(timeint64 int64) time.Time {
+	return time.Unix(timeint64, 0)
+}
+
+func UnixTimestampStrToTime(timeStr string) (time.Time, error) {
+	i, err := strconv.ParseInt(timeStr, 10, 64)
+	if err != nil {
+		return time.Time{}, err
+	}
+
+	return time.Unix(i, 0), nil
+}

common_test.go

@@ -5,6 +5,7 @@ import (
 	"fmt"
 	"reflect"
 	"testing"
+	"time"
 )
 
 func TestIsEnabled(t *testing.T) {
@@ -244,3 +245,28 @@ func TestExtractPort(t *testing.T) {
 		t.Error(fmt.Sprintf("Test failed. Expected '%d'. Actual '%d'.", expectedOutput, actualResult))
 	}
 }
+
+func TestUnixTimestampToTime(t *testing.T) {
+	t.Parallel()
+	testTime := int64(1489439831)
+	tm := time.Unix(testTime, 0)
+	expectedOutput := "2017-03-13 21:17:11 +0000 UTC"
+	actualResult := UnixTimestampToTime(testTime)
+	if tm.String() != actualResult.String() {
+		t.Error(fmt.Sprintf("Test failed. Expected '%s'. Actual '%s'.", expectedOutput, actualResult))
+	}
+}
+
+func TestUnixTimestampStrToTime(t *testing.T) {
+	t.Parallel()
+	testTime := "1489439831"
+	expectedOutput := "2017-03-13 21:17:11 +0000 UTC"
+	actualResult, err := UnixTimestampStrToTime(testTime)
+	if err != nil {
+		t.Error(err)
+	}
+
+	if actualResult.UTC().String() != expectedOutput {
+		t.Error(fmt.Sprintf("Test failed. Expected '%s'. Actual '%s'.", expectedOutput, actualResult))
+	}
+}