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| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 | 73x 73x 73x 73x | import { http, HttpResponse } from 'msw'
export type SSEController = {
send: (event: string, data?: string) => void
close: () => void
isOpen: () => boolean
}
export let activeController: SSEController | null = null
let autoFailCount = 0
let autoFailRemaining = 0
export function setAutoFailConnections(n: number) {
autoFailCount = 0
autoFailRemaining = n
}
export function resetAutoFail() {
autoFailCount = 0
autoFailRemaining = 0
}
export function resetSSEController() {
if (activeController) {
try { activeController.close() } catch {}
activeController = null
}
resetAutoFail()
}
export const testSSEHandlers = [
http.get('/test-events', () => {
if (autoFailCount < autoFailRemaining) {
autoFailCount++
return new HttpResponse(null, { status: 500 })
}
let closed = false
const encoder = new TextEncoder()
const stream = new ReadableStream({
start(controller) {
activeController = {
send(event: string, data?: string) {
if (closed) return
let msg = `event: ${event}\n`
if (data !== undefined) msg += `data: ${data}\n`
msg += '\n'
controller.enqueue(encoder.encode(msg))
},
close() {
if (closed) return
closed = true
activeController = null
controller.close()
},
isOpen() {
return !closed
},
}
},
cancel() {
closed = true
activeController = null
},
})
return new HttpResponse(stream, {
headers: {
'Content-Type': 'text/event-stream',
'Cache-Control': 'no-cache',
},
})
}),
]
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