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Merge pull request #10 from veezhang/mail
add mail client pkg
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,53 @@ | ||
| //go:generate mockgen -package mail -destination mail_mock.go -source mail.go Client | ||
| package mail | ||
|
|
||
| import ( | ||
| "gopkg.in/gomail.v2" | ||
| ) | ||
|
|
||
| const ( | ||
| ContentTypePlain = "text/plain" | ||
| ContentTypeHTML = "text/html" | ||
| ) | ||
|
|
||
| // Stubbed out for tests. | ||
| var newDialerSender = func(config Config) dialerSender { | ||
| return gomail.NewDialer(config.Host, config.Port, config.User, config.Password) | ||
| } | ||
|
|
||
| type ( | ||
| Client interface { | ||
| Send(to []string, subject, contentType, body string) error | ||
| } | ||
|
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| Config struct { | ||
| Host string | ||
| Port int | ||
| User string | ||
| Password string | ||
| } | ||
|
|
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| defaultClient struct { | ||
| config Config | ||
| } | ||
|
|
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| dialerSender interface { | ||
| DialAndSend(m ...*gomail.Message) error | ||
| } | ||
| ) | ||
|
|
||
| func NewClient(config Config) Client { | ||
| return &defaultClient{ | ||
| config: config, | ||
| } | ||
| } | ||
|
|
||
| func (c *defaultClient) Send(to []string, subject, contentType, body string) error { | ||
| m := gomail.NewMessage() | ||
| m.SetHeader("From", c.config.User) | ||
| m.SetHeader("To", to...) | ||
| m.SetHeader("Subject", subject) | ||
| m.SetBody(contentType, body) | ||
|
|
||
| return newDialerSender(c.config).DialAndSend(m) | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,79 @@ | ||
| package mail | ||
|
|
||
| import ( | ||
| "errors" | ||
| "testing" | ||
|
|
||
| "github.com/prashantv/gostub" | ||
| "github.com/stretchr/testify/assert" | ||
| "gopkg.in/gomail.v2" | ||
| ) | ||
|
|
||
| type ( | ||
| dialerSenderMock struct { | ||
| send func(...*gomail.Message) error | ||
| } | ||
| ) | ||
|
|
||
| func (d dialerSenderMock) DialAndSend(m ...*gomail.Message) error { | ||
| return d.send(m...) | ||
| } | ||
|
|
||
| func TestNewClient(t *testing.T) { | ||
| tests := []struct { | ||
| name string | ||
| config Config | ||
| to []string | ||
| subject string | ||
| contentType string | ||
| body string | ||
| err error | ||
| }{{ | ||
| name: "to:1", | ||
| config: Config{User: "u"}, | ||
| to: []string{"1"}, | ||
| subject: "subject", | ||
| contentType: ContentTypePlain, | ||
| body: "body", | ||
| }, { | ||
| name: "to:2", | ||
| config: Config{User: "u"}, | ||
| to: []string{"1"}, | ||
| subject: "subject", | ||
| contentType: ContentTypeHTML, | ||
| body: "body", | ||
| }, { | ||
| name: "error", | ||
| config: Config{User: "u"}, | ||
| to: []string{"1"}, | ||
| subject: "subject", | ||
| contentType: ContentTypePlain, | ||
| body: "body", | ||
| err: errors.New("send error"), | ||
| }} | ||
|
|
||
| for _, test := range tests { | ||
| t.Run(test.name, func(t *testing.T) { | ||
| ast := assert.New(t) | ||
| stubs := gostub.StubFunc(&newDialerSender, dialerSenderMock{ | ||
| send: func(msg ...*gomail.Message) error { | ||
| if ast.Len(msg, 1) { | ||
| ast.Equal([]string{test.config.User}, msg[0].GetHeader("From")) | ||
| ast.Equal(test.to, msg[0].GetHeader("To")) | ||
| ast.Equal([]string{test.subject}, msg[0].GetHeader("Subject")) | ||
| } | ||
| return test.err | ||
| }, | ||
| }) | ||
| defer stubs.Reset() | ||
| c := NewClient(test.config) | ||
| err := c.Send(test.to, test.subject, test.contentType, test.body) | ||
| ast.Equal(test.err, err) | ||
| }) | ||
| } | ||
| } | ||
|
|
||
| func Test_newDialerSender(t *testing.T) { | ||
| d := newDialerSender(Config{}) | ||
| assert.IsType(t, (*gomail.Dialer)(nil), d) | ||
| } |