add initial tests for utils/mail.go (#5176)

utils/mail_test.go

@@ -0,0 +1,61 @@
+// Copyright (c) 2017 Mattermost, Inc. All Rights Reserved.
+// See License.txt for license information.
+
+package utils
+
+import (
+	"strings"
+	"testing"
+)
+
+func TestMailConnection(t *testing.T) {
+	LoadConfig("config.json")
+
+	if conn, err := connectToSMTPServer(Cfg); err != nil {
+		t.Log(err)
+		t.Fatal("Should connect to the STMP Server")
+	} else {
+		if _, err1 := newSMTPClient(conn, Cfg); err1 != nil {
+			t.Log(err)
+			t.Fatal("Should get new smtp client")
+		}
+	}
+
+	Cfg.EmailSettings.SMTPServer = "wrongServer"
+	Cfg.EmailSettings.SMTPPort = "553"
+
+	if _, err := connectToSMTPServer(Cfg); err == nil {
+		t.Log(err)
+		t.Fatal("Should not to the STMP Server")
+	}
+
+}
+
+func TestSendMail(t *testing.T) {
+	LoadConfig("config.json")
+	T = GetUserTranslations("en")
+
+	var emailTo string = "test@example.com"
+	var emailSubject string = "Testing this email"
+	var emailBody string = "This is a test from autobot"
+
+	//Delete all the messages before check the sample email
+	DeleteMailBox(emailTo)
+
+	if err := SendMail(emailTo, emailSubject, emailBody); err != nil {
+		t.Log(err)
+		t.Fatal("Should connect to the STMP Server")
+	} else {
+		//Check if the email was send to the rigth email address
+		if resultsMailbox, err := GetMailBox(emailTo); err != nil && !strings.ContainsAny(resultsMailbox[0].To[0], emailTo) {
+			t.Fatal("Wrong To recipient")
+		} else {
+			if resultsEmail, err := GetMessageFromMailbox(emailTo, resultsMailbox[0].ID); err == nil {
+				if !strings.Contains(resultsEmail.Body.Text, emailBody) {
+					t.Log(resultsEmail.Body.Text)
+					t.Fatal("Received message")
+				}
+			}
+		}
+	}
+}