Add test for GetLatestCommitTime

The test checks that latest commit time is before now
and more recent than the commit this PR is based at
Test no error is raised by time parsing and GetLatestCommitTime
Print actual time when tests fail

Author: strk

repo_test.go

@@ -0,0 +1,25 @@
+// Copyright 2017 The Gitea Authors. All rights reserved.
+// Use of this source code is governed by a MIT-style
+// license that can be found in the LICENSE file.
+
+package git
+
+import (
+	"testing"
+	"time"
+	"github.com/stretchr/testify/assert"
+)
+
+func TestGetLatestCommitTime(t *testing.T) {
+	lct, err := GetLatestCommitTime(".")
+	assert.NoError(t, err)
+	// Time is in the past
+	now := time.Now()
+	assert.True(t, lct.Unix() < now.Unix(), "%d not smaller than %d", lct, now)
+	// Time is after Mon Oct 23 03:52:09 2017 +0300
+	// which is the time of commit
+	// d47b98c44c9a6472e44ab80efe65235e11c6da2a
+	refTime, err := time.Parse("Mon Jan 02 15:04:05 2006 -0700", "Mon Oct 23 03:52:09 2017 +0300")
+	assert.NoError(t, err)
+	assert.True(t, lct.Unix() > refTime.Unix(), "%d not greater than %d", lct, refTime)
+}