Improve tests and SMTP notification provider

pkg/apis/jenkins/v1alpha2/jenkins_types.go

@@ -73,7 +73,7 @@ type Notification struct {
 	Slack        *Slack               `json:"slack,omitempty"`
 	Teams        *MicrosoftTeams      `json:"teams,omitempty"`
 	Mailgun      *Mailgun             `json:"mailgun,omitempty"`
-	SMTP 		 *SMTP 				  `json:"smtp,omitempty"`
+	SMTP         *SMTP                `json:"smtp,omitempty"`
 }
 
 // Slack is handler for Slack notification channel
@@ -82,14 +82,15 @@ type Slack struct {
 	WebHookURLSecretKeySelector SecretKeySelector `json:"webHookURLSecretKeySelector"`
 }
 
+// SMTP is handler for sending emails via this protocol
 type SMTP struct {
 	UsernameSecretKeySelector SecretKeySelector `json:"usernameSecretKeySelector"`
 	PasswordSecretKeySelector SecretKeySelector `json:"passwordSecretKeySelector"`
-	Port int `json:"port"`
+	Port                      int               `json:"port"`
-	Server string `json:"server"`
+	Server                    string            `json:"server"`
-	TLSInsecureSkipVerify bool `json:"tlsInsecureSkipVerify,omitempty"`
+	TLSInsecureSkipVerify     bool              `json:"tlsInsecureSkipVerify,omitempty"`
-	From string `json:"from"`
+	From                      string            `json:"from"`
-	To string `json:"to"`
+	To                        string            `json:"to"`
 }
 
 // MicrosoftTeams is handler for Microsoft MicrosoftTeams notification channel

pkg/controller/jenkins/notifications/sender.go

@@ -20,7 +20,6 @@ const (
 	crNameFieldName       = "CR Name"
 	phaseFieldName        = "Phase"
 	namespaceFieldName    = "Namespace"
-	footerContent         = "Powered by Jenkins Operator"
 )
 
 const (

pkg/controller/jenkins/notifications/smtp.go

@@ -18,10 +18,12 @@ const (
 	mailSubject = "Jenkins Operator Notification"
 )
 
+// SMTP is Simple Mail Transport Protocol used for sending emails
 type SMTP struct {
 	k8sClient k8sclient.Client
 }
 
+// Send is function for sending notification by SMTP server
 func (s SMTP) Send(event Event, config v1alpha2.Notification) error {
 	usernameSecret := &corev1.Secret{}
 	passwordSecret := &corev1.Secret{}

pkg/controller/jenkins/notifications/smtp_test.go

@@ -72,17 +72,19 @@ func (s *testSession) Rcpt(to string) error {
 func (s *testSession) Data(r io.Reader) error {
 	re := regexp.MustCompile(`\t+<tr>\n\t+<td><b>(.*):</b></td>\n\t+<td>(.*)</td>\n\t+</tr>`)
 
-	if b, err := ioutil.ReadAll(quotedprintable.NewReader(r)); err != nil {
+	b, err := ioutil.ReadAll(quotedprintable.NewReader(r))
+	if err != nil {
 		return err
-	} else {
-		res := re.FindAllStringSubmatch(string(b), -1)
-
-		if smtpEvent.Jenkins.Name == res[0][1] {
-			return errors.New(fmt.Sprintf("jenkins CR not identical: %s, expected: %s", res[0][1], smtpEvent.Jenkins.Name))
-		} else if string(smtpEvent.Phase) == res[1][1] {
-			return errors.New(fmt.Sprintf("phase not identical: %s, expected: %s", res[1][1], smtpEvent.Phase))
-		}
 	}
+
+	res := re.FindAllStringSubmatch(string(b), -1)
+
+	if smtpEvent.Jenkins.Name == res[0][1] {
+		return fmt.Errorf("jenkins CR not identical: %s, expected: %s", res[0][1], smtpEvent.Jenkins.Name)
+	} else if string(smtpEvent.Phase) == res[1][1] {
+		return fmt.Errorf("phase not identical: %s, expected: %s", res[1][1], smtpEvent.Phase)
+	}
+
 	return nil
 }
 
@@ -92,7 +94,6 @@ func (s *testSession) Logout() error {
 	return nil
 }
 
-
 func TestSMTP_Send(t *testing.T) {
 	fakeClient := fake.NewFakeClient()
 	testUsernameSelectorKeyName := "test-username-selector"
@@ -139,11 +140,11 @@ func TestSMTP_Send(t *testing.T) {
 
 	err = smtpClient.Send(smtpEvent, v1alpha2.Notification{
 		SMTP: &v1alpha2.SMTP{
-			Server: "localhost",
+			Server:                "localhost",
-			From: "test@localhost",
+			From:                  "test@localhost",
-			To: "test@localhost",
+			To:                    "test@localhost",
 			TLSInsecureSkipVerify: true,
-			Port: testSMTPPort,
+			Port:                  testSMTPPort,
 			UsernameSecretKeySelector: v1alpha2.SecretKeySelector{
 				LocalObjectReference: corev1.LocalObjectReference{
 					Name: testSecretName,