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code-server/test/unit/node/settings.test.ts

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import { logger } from "@coder/logger"
import { promises as fs } from "fs"
import path from "path"
import { SettingsProvider, CoderSettings } from "../../../src/node/settings"
import { clean, mockLogger, tmpdir } from "../../utils/helpers"
describe("settings", () => {
const testName = "settingsTests"
let testDir = ""
beforeAll(async () => {
mockLogger()
await clean(testName)
testDir = await tmpdir(testName)
})
describe("with invalid JSON in settings file", () => {
const mockSettingsFile = "coder.json"
let pathToMockSettingsFile = ""
beforeEach(async () => {
pathToMockSettingsFile = path.join(testDir, mockSettingsFile)
// Missing a quote, which makes it invalid intentionally
await fs.writeFile(pathToMockSettingsFile, '{"fakeKey":true,"helloWorld:"test"}')
})
afterEach(async () => {
jest.clearAllMocks()
})
it("should log a warning", async () => {
const settings = new SettingsProvider<CoderSettings>(pathToMockSettingsFile)
await settings.read()
// This happens when we can't parse a JSON (usually error in file)
expect(logger.warn).toHaveBeenCalledWith("Unexpected token t in JSON at position 29")
})
})
describe("with invalid settings file path", () => {
const mockSettingsFile = "nonExistent.json"
let pathToMockSettingsFile = ""
beforeEach(async () => {
// Add hello so it's a directory that doesn't exist
// NOTE: if we don't have that, it fails the test
// That's because it will write a file if it doesn't exist
// but it throws if there's a directory in the path that
// doesn't exist.
pathToMockSettingsFile = path.join(testDir, "hello", mockSettingsFile)
})
afterEach(async () => {
jest.clearAllMocks()
})
it("should log a warning", async () => {
const settings = new SettingsProvider<CoderSettings>(pathToMockSettingsFile)
await settings.write({
update: {
checked: 2,
version: "4.0.1",
},
})
// This happens if it tries to writeFile to a nonexistent path
expect(logger.warn).toHaveBeenCalledWith(expect.stringContaining("ENOENT: no such file or directory"))
})
})
})