code-server/test/unit/common/emitter.test.ts
Asher c4c480a068
Implement last opened functionality (#4633)
* Implement last opened functionality

Fixes https://github.com/cdr/code-server/issues/4619

* Fix test temp dirs not being cleaned up

* Mock logger everywhere

This suppresses all the error and debug output we generate which makes
it hard to actually find which test has failed.  It also gives us a
standard way to test logging for the few places we do that.

* Use separate data directories for unit test instances

Exactly as we do for the e2e tests.

* Add integration tests for vscode route

* Make settings use --user-data-dir

Without this test instances step on each other feet and they also
clobber your own non-test settings.

* Make redirects consistent

They will preserve the trailing slash if there is one.

* Remove compilation check

If you do a regular non-watch build there are no compilation stats so
this bricks VS Code in CI when running the unit tests.

I am not sure how best to fix this for the case where you have a build
that has not been packaged yet so I just removed it for now and added a
message to check if VS Code is compiling when in dev mode.

* Update code-server update endpoint name
2021-12-17 13:06:52 -06:00

85 lines
2.5 KiB
TypeScript

import { logger } from "@coder/logger"
import { Emitter } from "../../../src/common/emitter"
import { mockLogger } from "../../utils/helpers"
describe("emitter", () => {
beforeEach(() => {
mockLogger()
})
afterEach(() => {
jest.clearAllMocks()
})
it("should run the correct callbacks", async () => {
const HELLO_WORLD = "HELLO_WORLD"
const GOODBYE_WORLD = "GOODBYE_WORLD"
const mockCallback = jest.fn(() => "Mock function called")
const mockSecondCallback = jest.fn(() => undefined)
const emitter = new Emitter<{ event: string; callback: () => void }>()
const onHelloWorld = ({ event, callback }: { event: string; callback: () => void }): void => {
if (event === HELLO_WORLD) {
callback()
}
}
const onGoodbyeWorld = ({ event, callback }: { event: string; callback: () => void }): void => {
if (event === GOODBYE_WORLD) {
callback()
}
}
// Register the onHelloWorld listener
// and the onGoodbyeWorld
const _onHelloWorld = emitter.event(onHelloWorld)
emitter.event(onGoodbyeWorld)
await emitter.emit({ event: HELLO_WORLD, callback: mockCallback })
// Double-check that our callback is called only once
expect(mockCallback).toHaveBeenCalled()
expect(mockCallback).toHaveBeenCalledTimes(1)
await emitter.emit({ event: GOODBYE_WORLD, callback: mockSecondCallback })
// Check that it works with multiple listeners
expect(mockSecondCallback).toHaveBeenCalled()
expect(mockSecondCallback).toHaveBeenCalledTimes(1)
// Dispose of individual listener
_onHelloWorld.dispose()
// Try disposing twice
_onHelloWorld.dispose()
// Dispose of all the listeners
emitter.dispose()
})
it("should log an error if something goes wrong", async () => {
const HELLO_WORLD = "HELLO_WORLD"
const mockCallback = jest.fn(() => "Mock function called")
const message = "You don't have access to that folder."
const emitter = new Emitter<{ event: string; callback: () => void }>()
const onHelloWorld = ({ event, callback }: { event: string; callback: () => void }): void => {
if (event === HELLO_WORLD) {
callback()
throw new Error(message)
}
}
emitter.event(onHelloWorld)
await emitter.emit({ event: HELLO_WORLD, callback: mockCallback })
// Check that error was called
expect(logger.error).toHaveBeenCalled()
expect(logger.error).toHaveBeenCalledTimes(1)
expect(logger.error).toHaveBeenCalledWith(message)
})
})