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code-server/test/unit/constants.test.ts
Asher e8443e2602
Fix helpers not working in e2e tests
It errors that jest is not defined so put it behind a function instead
of immediately creating the mock (this is probably a better pattern
anyway).

The constant tests had to be reworked a little. Since the logger mock is
hoisted it runs before createLoggerMock is imported. I moved it into a
beforeAll which means the require call also needed to be moved
there (since we need to mock the logger before requiring the constants
or it'll pull the non-mocked logger).

This means getPackageJson needs to be a let and assigned afterward. To
avoid having to define a type for getPackageJson I just added a let var
set to the type of the imported constants file and modified the other
areas to use the same paradigm.

I also replaced some hardcoded strings with the mocked package.json
object.
2021-05-06 15:01:35 -05:00

77 lines
2.3 KiB
TypeScript

import { createLoggerMock } from "../utils/helpers"
describe("constants", () => {
let constants: typeof import("../../src/node/constants")
describe("with package.json defined", () => {
const loggerModule = createLoggerMock()
const mockPackageJson = {
name: "mock-code-server",
description: "Run VS Code on a remote server.",
repository: "https://github.com/cdr/code-server",
version: "1.0.0",
commit: "f6b2be2838f4afb217c2fd8f03eafedd8d55ef9b",
}
beforeAll(() => {
jest.mock("@coder/logger", () => loggerModule)
jest.mock("../../package.json", () => mockPackageJson, { virtual: true })
constants = require("../../src/node/constants")
})
afterAll(() => {
jest.clearAllMocks()
jest.resetModules()
})
it("should provide the commit", () => {
expect(constants.commit).toBe(mockPackageJson.commit)
})
it("should return the package.json version", () => {
expect(constants.version).toBe(mockPackageJson.version)
})
describe("getPackageJson", () => {
it("should log a warning if package.json not found", () => {
const expectedErrorMessage = "Cannot find module './package.json' from 'src/node/constants.ts'"
constants.getPackageJson("./package.json")
expect(loggerModule.logger.warn).toHaveBeenCalled()
expect(loggerModule.logger.warn).toHaveBeenCalledWith(expectedErrorMessage)
})
it("should find the package.json", () => {
// the function calls require from src/node/constants
// so to get the root package.json we need to use ../../
const packageJson = constants.getPackageJson("../../package.json")
expect(packageJson).toStrictEqual(mockPackageJson)
})
})
})
describe("with incomplete package.json", () => {
const mockPackageJson = {
name: "mock-code-server",
}
beforeAll(() => {
jest.mock("../../package.json", () => mockPackageJson, { virtual: true })
constants = require("../../src/node/constants")
})
afterAll(() => {
jest.clearAllMocks()
jest.resetModules()
})
it("version should return 'development'", () => {
expect(constants.version).toBe("development")
})
it("commit should return 'development'", () => {
expect(constants.commit).toBe("development")
})
})
})