code-server/test/unit/common/util.test.ts

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import { JSDOM } from "jsdom"
import * as util from "../../../src/common/util"
import { createLoggerMock } from "../../utils/helpers"
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const dom = new JSDOM()
global.document = dom.window.document
export type LocationLike = Pick<Location, "pathname" | "origin">
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describe("util", () => {
describe("normalize", () => {
it("should remove multiple slashes", () => {
expect(util.normalize("//foo//bar//baz///mumble")).toBe("/foo/bar/baz/mumble")
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})
it("should remove trailing slashes", () => {
expect(util.normalize("qux///")).toBe("qux")
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})
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it("should preserve trailing slash if it exists", () => {
expect(util.normalize("qux///", true)).toBe("qux/")
expect(util.normalize("qux", true)).toBe("qux")
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})
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})
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describe("split", () => {
it("should split at a comma", () => {
expect(util.split("Hello,world", ",")).toStrictEqual(["Hello", "world"])
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})
it("shouldn't split if the delimiter doesn't exist", () => {
expect(util.split("Hello world", ",")).toStrictEqual(["Hello world", ""])
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})
})
describe("plural", () => {
it("should add an s if count is greater than 1", () => {
expect(util.plural(2, "dog")).toBe("dogs")
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})
it("should NOT add an s if the count is 1", () => {
expect(util.plural(1, "dog")).toBe("dog")
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})
})
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describe("generateUuid", () => {
it("should generate a unique uuid", () => {
const uuid = util.generateUuid()
const uuid2 = util.generateUuid()
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expect(uuid).toHaveLength(24)
expect(typeof uuid).toBe("string")
expect(uuid).not.toBe(uuid2)
})
it("should generate a uuid of a specific length", () => {
const uuid = util.generateUuid(10)
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expect(uuid).toHaveLength(10)
})
})
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describe("trimSlashes", () => {
it("should remove leading slashes", () => {
expect(util.trimSlashes("/hello-world")).toBe("hello-world")
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})
it("should remove trailing slashes", () => {
expect(util.trimSlashes("hello-world/")).toBe("hello-world")
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})
it("should remove both leading and trailing slashes", () => {
expect(util.trimSlashes("/hello-world/")).toBe("hello-world")
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})
it("should remove multiple leading and trailing slashes", () => {
expect(util.trimSlashes("///hello-world////")).toBe("hello-world")
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})
})
describe("resolveBase", () => {
beforeEach(() => {
const location: LocationLike = {
pathname: "/healthz",
origin: "http://localhost:8080",
}
// Because resolveBase is not a pure function
// and relies on the global location to be set
// we set it before all the tests
// and tell TS that our location should be looked at
// as Location (even though it's missing some properties)
global.location = location as Location
})
it("should resolve a base", () => {
expect(util.resolveBase("localhost:8080")).toBe("/localhost:8080")
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})
it("should resolve a base with a forward slash at the beginning", () => {
expect(util.resolveBase("/localhost:8080")).toBe("/localhost:8080")
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})
it("should resolve a base with query params", () => {
expect(util.resolveBase("localhost:8080?folder=hello-world")).toBe("/localhost:8080")
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})
it("should resolve a base with a path", () => {
expect(util.resolveBase("localhost:8080/hello/world")).toBe("/localhost:8080/hello/world")
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})
it("should resolve a base to an empty string when not provided", () => {
expect(util.resolveBase()).toBe("")
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})
})
describe("arrayify", () => {
it("should return value it's already an array", () => {
expect(util.arrayify(["hello", "world"])).toStrictEqual(["hello", "world"])
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})
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it("should wrap the value in an array if not an array", () => {
expect(
util.arrayify({
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name: "Coder",
version: "3.8",
}),
).toStrictEqual([{ name: "Coder", version: "3.8" }])
})
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it("should return an empty array if the value is undefined", () => {
expect(util.arrayify(undefined)).toStrictEqual([])
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})
})
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describe("logError", () => {
afterEach(() => {
jest.clearAllMocks()
})
afterAll(() => {
jest.restoreAllMocks()
})
const loggerModule = createLoggerMock()
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it("should log an error with the message and stack trace", () => {
const message = "You don't have access to that folder."
const error = new Error(message)
util.logError(loggerModule.logger, "ui", error)
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expect(loggerModule.logger.error).toHaveBeenCalled()
expect(loggerModule.logger.error).toHaveBeenCalledWith(`ui: ${error.message} ${error.stack}`)
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})
it("should log an error, even if not an instance of error", () => {
util.logError(loggerModule.logger, "api", "oh no")
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expect(loggerModule.logger.error).toHaveBeenCalled()
expect(loggerModule.logger.error).toHaveBeenCalledWith("api: oh no")
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})
})
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})