312 lines
		
	
	
		
			7.5 KiB
		
	
	
	
		
			Go
		
	
	
	
			
		
		
	
	
			312 lines
		
	
	
		
			7.5 KiB
		
	
	
	
		
			Go
		
	
	
	
package smtp
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import (
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	"context"
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	//"errors"
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	"fmt"
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	"io"
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	"mime/quotedprintable"
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	"net"
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	"regexp"
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	"testing"
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	"time"
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	"github.com/jenkinsci/kubernetes-operator/api/v1alpha2"
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	"github.com/jenkinsci/kubernetes-operator/pkg/notifications/event"
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	"github.com/jenkinsci/kubernetes-operator/pkg/notifications/reason"
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	"github.com/emersion/go-smtp"
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	"github.com/stretchr/testify/assert"
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	corev1 "k8s.io/api/core/v1"
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	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
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	"sigs.k8s.io/controller-runtime/pkg/client/fake"
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)
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const (
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	testSMTPUsername = "username"
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	testSMTPPassword = "password"
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	testSMTPPort = 1025
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	testFrom    = "test@localhost"
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	testTo      = "test.to@localhost"
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	testSubject = "Jenkins Operator Notification"
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	// Headers titles
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	fromHeader    = "From"
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	toHeader      = "To"
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	subjectHeader = "Subject"
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	nilConst = "nil"
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)
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var (
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	testPhase     = event.PhaseUser
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	testCrName    = "test-cr"
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	testNamespace = "default"
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	testReason    = reason.NewPodRestart(
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		reason.KubernetesSource,
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		[]string{"test-reason-1"},
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		[]string{"test-verbose-1"}...,
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	)
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	testLevel = v1alpha2.NotificationLevelWarning
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)
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type testServer struct {
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	event event.Event
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}
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// TODO: @brokenpip3 fix me
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//func (bkd *testServer) Login(_ *smtp.ConnectionState, username, password string) (smtp.Session, error) {
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//	if username != testSMTPUsername || password != testSMTPPassword {
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//		return nil, errors.New("invalid username or password")
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//	}
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//	return &testSession{event: bkd.event}, nil
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//}
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//
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//// AnonymousLogin requires clients to authenticate using SMTP AUTH before sending emails
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//func (bkd *testServer) AnonymousLogin(_ *smtp.ConnectionState) (smtp.Session, error) {
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//	return nil, smtp.ErrAuthRequired
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//}
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// A Session is returned after successful login.
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type testSession struct {
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	event event.Event
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}
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func (s *testSession) Mail(from string) error {
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	if from != testFrom {
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		return fmt.Errorf("`From` header is not equal: '%s', expected '%s'", from, testFrom)
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	}
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	return nil
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}
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func (s *testSession) Rcpt(to string) error {
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	if to != testTo {
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		return fmt.Errorf("`To` header is not equal: '%s', expected '%s'", to, testTo)
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	}
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	return nil
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}
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func (s *testSession) Data(r io.Reader) error {
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	contentRegex := regexp.MustCompile(`\t+<tr>\n\t+<td><b>(.*):</b></td>\n\t+<td>(.*)</td>\n\t+</tr>`)
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	headersRegex := regexp.MustCompile(`(.*):\s(.*)`)
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	b, err := io.ReadAll(quotedprintable.NewReader(r))
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	if err != nil {
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		return err
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	}
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	content := contentRegex.FindAllStringSubmatch(string(b), -1)
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	headers := headersRegex.FindAllStringSubmatch(string(b), -1)
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	if s.event.Jenkins.Name == content[0][1] {
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		return fmt.Errorf("jenkins CR not identical: %s, expected: %s", content[0][1], s.event.Jenkins.Name)
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	} else if string(s.event.Phase) == content[1][1] {
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		return fmt.Errorf("phase not identical: %s, expected: %s", content[1][1], s.event.Phase)
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	}
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	for i := range headers {
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		switch {
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		case headers[i][1] == fromHeader && headers[i][2] != testFrom:
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			return fmt.Errorf("`From` header is not equal: '%s', expected '%s'", headers[i][2], testFrom)
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		case headers[i][1] == toHeader && headers[i][2] != testTo:
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			return fmt.Errorf("`To` header is not equal: '%s', expected '%s'", headers[i][2], testTo)
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		case headers[i][1] == subjectHeader && headers[i][2] != testSubject:
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			return fmt.Errorf("`Subject` header is not equal: '%s', expected '%s'", headers[i][2], testSubject)
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		}
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	}
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	return nil
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}
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func (s *testSession) Reset() {}
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func (s *testSession) Logout() error {
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	return nil
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}
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func TestSMTP_Send(t *testing.T) {
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	e := event.Event{
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		Jenkins: v1alpha2.Jenkins{
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			ObjectMeta: metav1.ObjectMeta{
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				Name:      testCrName,
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				Namespace: testNamespace,
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			},
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		},
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		Phase:  testPhase,
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		Level:  testLevel,
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		Reason: testReason,
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	}
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	fakeClient := fake.NewClientBuilder().Build()
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	testUsernameSelectorKeyName := "test-username-selector"
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	testPasswordSelectorKeyName := "test-password-selector"
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	testSecretName := "test-secret"
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	smtpClient := SMTP{k8sClient: fakeClient, config: v1alpha2.Notification{
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		SMTP: &v1alpha2.SMTP{
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			Server:                "localhost",
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			From:                  testFrom,
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			To:                    testTo,
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			TLSInsecureSkipVerify: true,
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			Port:                  testSMTPPort,
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			UsernameSecretKeySelector: v1alpha2.SecretKeySelector{
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				LocalObjectReference: corev1.LocalObjectReference{
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					Name: testSecretName,
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				},
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				Key: testUsernameSelectorKeyName,
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			},
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			PasswordSecretKeySelector: v1alpha2.SecretKeySelector{
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				LocalObjectReference: corev1.LocalObjectReference{
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					Name: testSecretName,
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				},
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				Key: testPasswordSelectorKeyName,
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			},
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		},
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	}}
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	ts := &testServer{event: e}
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	// Create fake SMTP server
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	s := smtp.NewServer(ts)
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	s.Addr = fmt.Sprintf(":%d", testSMTPPort)
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	s.Domain = "localhost"
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	s.ReadTimeout = 10 * time.Second
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	s.WriteTimeout = 10 * time.Second
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	s.MaxMessageBytes = 1024 * 1024
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	s.MaxRecipients = 50
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	s.AllowInsecureAuth = true
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	// Create secrets
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	secret := &corev1.Secret{
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		ObjectMeta: metav1.ObjectMeta{
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			Name:      testSecretName,
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			Namespace: testNamespace,
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		},
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		Data: map[string][]byte{
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			testUsernameSelectorKeyName: []byte(testSMTPUsername),
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			testPasswordSelectorKeyName: []byte(testSMTPPassword),
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		},
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	}
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	err := fakeClient.Create(context.TODO(), secret)
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	assert.NoError(t, err)
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	l, err := net.Listen("tcp", fmt.Sprintf("127.0.0.1:%d", testSMTPPort))
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	assert.NoError(t, err)
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	go func() {
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		err := s.Serve(l)
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		assert.NoError(t, err)
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	}()
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	err = smtpClient.Send(e)
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	assert.NoError(t, err)
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}
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func TestGenerateMessage(t *testing.T) {
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	t.Run("happy", func(t *testing.T) {
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		crName := "test-jenkins"
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		phase := event.PhaseBase
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		level := v1alpha2.NotificationLevelInfo
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		res := reason.NewUndefined(reason.KubernetesSource, []string{"test"}, []string{"test-verbose"}...)
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		from := "from@jenkins.local"
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		to := "to@jenkins.local"
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		e := event.Event{
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			Jenkins: v1alpha2.Jenkins{
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				ObjectMeta: metav1.ObjectMeta{
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					Name: crName,
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				},
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			},
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			Phase:  phase,
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			Level:  level,
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			Reason: res,
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		}
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		s := SMTP{
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			k8sClient: fake.NewClientBuilder().Build(),
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			config: v1alpha2.Notification{
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				LoggingLevel: level,
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				SMTP: &v1alpha2.SMTP{
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					From: from,
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					To:   to,
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				},
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			},
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		}
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		message := s.generateMessage(e)
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		assert.NotNil(t, message)
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	})
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	t.Run("with nils", func(t *testing.T) {
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		crName := nilConst
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		phase := event.PhaseBase
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		level := v1alpha2.NotificationLevelInfo
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		res := reason.NewUndefined(reason.KubernetesSource, []string{nilConst}, []string{nilConst}...)
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		from := nilConst
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		to := nilConst
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		e := event.Event{
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			Jenkins: v1alpha2.Jenkins{
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				ObjectMeta: metav1.ObjectMeta{
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					Name: crName,
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				},
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			},
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			Phase:  phase,
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			Level:  level,
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			Reason: res,
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		}
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		s := SMTP{
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			k8sClient: fake.NewClientBuilder().Build(),
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			config: v1alpha2.Notification{
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				LoggingLevel: level,
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				SMTP: &v1alpha2.SMTP{
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					From: from,
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					To:   to,
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				},
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			},
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		}
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		message := s.generateMessage(e)
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		assert.NotNil(t, message)
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	})
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	t.Run("with empty strings", func(t *testing.T) {
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		crName := ""
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		phase := event.PhaseBase
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		level := v1alpha2.NotificationLevelInfo
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		res := reason.NewUndefined(reason.KubernetesSource, []string{""}, []string{""}...)
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		from := ""
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		to := ""
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		e := event.Event{
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			Jenkins: v1alpha2.Jenkins{
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				ObjectMeta: metav1.ObjectMeta{
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					Name: crName,
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				},
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			},
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			Phase:  phase,
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			Level:  level,
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			Reason: res,
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		}
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		s := SMTP{
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			k8sClient: fake.NewClientBuilder().Build(),
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			config: v1alpha2.Notification{
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				LoggingLevel: level,
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				SMTP: &v1alpha2.SMTP{
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					From: from,
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					To:   to,
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				},
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			},
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		}
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		message := s.generateMessage(e)
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		assert.NotNil(t, message)
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	})
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}
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