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-rw-r--r--shared/extra-utils/miscs/email.ts64
1 files changed, 64 insertions, 0 deletions
diff --git a/shared/extra-utils/miscs/email.ts b/shared/extra-utils/miscs/email.ts
new file mode 100644
index 000000000..f9f1bd95b
--- /dev/null
+++ b/shared/extra-utils/miscs/email.ts
@@ -0,0 +1,64 @@
1import { fork, ChildProcess } from 'child_process'
2
3class MockSmtpServer {
4
5 private static instance: MockSmtpServer
6 private started = false
7 private emailChildProcess: ChildProcess
8 private emails: object[]
9
10 private constructor () {
11 this.emailChildProcess = fork(`${__dirname}/email-child-process`, [])
12
13 this.emailChildProcess.on('message', (msg) => {
14 if (msg.email) {
15 return this.emails.push(msg.email)
16 }
17 })
18
19 process.on('exit', () => this.kill())
20 }
21
22 collectEmails (emailsCollection: object[]) {
23 return new Promise((res, rej) => {
24 if (this.started) {
25 this.emails = emailsCollection
26 return res()
27 }
28
29 // ensure maildev isn't started until
30 // unexpected exit can be reported to test runner
31 this.emailChildProcess.send({ start: true })
32 this.emailChildProcess.on('exit', () => {
33 return rej(new Error('maildev exited unexpectedly, confirm port not in use'))
34 })
35 this.emailChildProcess.on('message', (msg) => {
36 if (msg.err) {
37 return rej(new Error(msg.err))
38 }
39 this.started = true
40 this.emails = emailsCollection
41 return res()
42 })
43 })
44 }
45
46 kill () {
47 if (!this.emailChildProcess) return
48
49 process.kill(this.emailChildProcess.pid)
50
51 this.emailChildProcess = null
52 MockSmtpServer.instance = null
53 }
54
55 static get Instance () {
56 return this.instance || (this.instance = new this())
57 }
58}
59
60// ---------------------------------------------------------------------------
61
62export {
63 MockSmtpServer
64}