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47 changes: 0 additions & 47 deletions
47
packages/transport-http/src/subscriptions/mocks/websocket.ts
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141 changes: 86 additions & 55 deletions
141
packages/transport-http/src/subscriptions/stream-controller.test.ts
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,69 +1,100 @@ | ||
| import { createMockWebSocket } from "./mocks/websocket" | ||
| import { SubscribeMessageResponse } from "./models" | ||
| import { StreamController } from "./stream-controller" | ||
| import { SubscriptionResponse, SubscriptionTopic } from "./types" | ||
|
|
||
| let mockWs: ReturnType<typeof createMockWebSocket> | ||
| import WS from "jest-websocket-mock" | ||
| import {WebSocket as mockSocket} from "mock-socket" | ||
| import { | ||
| SubscribeMessageRequest, | ||
| SubscribeMessageResponse, | ||
| SubscriptionDataMessage, | ||
| UnsubscribeMessageRequest, | ||
| } from "./models" | ||
| import {StreamController} from "./stream-controller" | ||
| import {SubscriptionTopic} from "./types" | ||
|
|
||
| jest.mock("../websocket", () => ({ | ||
| WebSocket: jest.fn().mockImplementation(() => mockWs.WebSocket), | ||
| WebSocket: mockSocket, | ||
| })) | ||
|
|
||
| describe("StreamController", () => { | ||
| beforeEach(() => { | ||
| mockWs = createMockWebSocket() | ||
| }) | ||
| test("constructor", () => { | ||
| const config = { | ||
| hostname: "hostname", | ||
| reconnectInterval: 1000, | ||
| reconnectAttempts: 10, | ||
| } | ||
| const streamController = new StreamController(config) | ||
| expect(streamController).toBeDefined() | ||
| }) | ||
|
|
||
| test("subscribes, receives data, and unsubscribes", async () => { | ||
| const config = { | ||
| hostname: "wss://localhost:8080", | ||
| reconnectInterval: 1000, | ||
| reconnectAttempts: 10, | ||
| } | ||
| const streamController = new StreamController(config) | ||
| const topic = "topic" as SubscriptionTopic | ||
| const args = {key: "value"} as any | ||
| const onData = jest.fn() | ||
| const onError = jest.fn() | ||
|
|
||
| const mockWs = new WS("wss://localhost:8080") | ||
|
|
||
| let serverPromise = (async () => { | ||
| await mockWs.connected | ||
|
|
||
| const msg = (await mockWs.nextMessage) as string | ||
| const data = JSON.parse(msg) as SubscribeMessageRequest | ||
| expect(data).toEqual({ | ||
| action: "subscribe", | ||
| topic, | ||
| arguments: args, | ||
| }) | ||
|
|
||
| test("constructor", () => { | ||
| const config = { | ||
| hostname: "hostname", | ||
| reconnectInterval: 1000, | ||
| reconnectAttempts: 10, | ||
| } | ||
| const streamController = new StreamController(config) | ||
| expect(streamController).toBeDefined() | ||
| }) | ||
| const response: SubscribeMessageResponse = { | ||
| id: "id", | ||
| action: "subscribe", | ||
| success: true, | ||
| topic, | ||
| } | ||
| mockWs.send(JSON.stringify(response)) | ||
| })() | ||
|
|
||
| test("subscribe sends subscribe message", async () => { | ||
| const config = { | ||
| hostname: "hostname", | ||
| reconnectInterval: 1000, | ||
| reconnectAttempts: 10, | ||
| } | ||
| const streamController = new StreamController(config) | ||
| const topic = "topic" as SubscriptionTopic | ||
| const args = { key: "value" } as any | ||
| const onData = jest.fn() | ||
| const onError = jest.fn() | ||
| const [subscription] = await Promise.all([ | ||
| streamController.subscribe({ | ||
| topic, | ||
| args, | ||
| onData, | ||
| onError, | ||
| }), | ||
| serverPromise, | ||
| ]) | ||
|
|
||
| console.log("YO") | ||
| expect(subscription).toBeDefined() | ||
| expect(subscription.unsubscribe).toBeInstanceOf(Function) | ||
|
|
||
| mockWs.mockConnection.onmessage.mockImplementation((event) => { | ||
| console.log(event) | ||
| const data = JSON.parse(event.data) | ||
| expect(data).toEqual({ | ||
| topic, | ||
| arguments: args, | ||
| }) | ||
| serverPromise = (async () => { | ||
| const data = { | ||
| id: "id", | ||
| data: {key: "value"}, | ||
| } as SubscriptionDataMessage | ||
| mockWs.send(JSON.stringify(data)) | ||
| })() | ||
|
|
||
| const response: SubscribeMessageResponse = { | ||
| id: "id", | ||
| action: "subscribe", | ||
| success: true, | ||
| topic, | ||
| } | ||
| mockWs.mockConnection.send(response) | ||
| }) | ||
| await serverPromise | ||
|
|
||
| const subscription = await streamController.subscribe({ | ||
| topic, | ||
| args, | ||
| onData, | ||
| onError, | ||
| }) | ||
| expect(onData).toHaveBeenCalledTimes(1) | ||
| expect(onData).toHaveBeenCalledWith({key: "value"}) | ||
| expect(onError).toHaveBeenCalledTimes(0) | ||
|
|
||
| expect(mockWs.mockConnection.onmessage).toHaveBeenCalledTimes(1) | ||
| serverPromise = (async () => { | ||
| const msg = (await mockWs.nextMessage) as string | ||
| const data = JSON.parse(msg) as UnsubscribeMessageRequest | ||
| expect(data).toEqual({ | ||
| action: "unsubscribe", | ||
| id: "id", | ||
| }) | ||
| })() | ||
|
|
||
|
|
||
| }) | ||
| subscription.unsubscribe() | ||
| await serverPromise | ||
| }) | ||
| }) |
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