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

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2021-07-23 21:38:25 +00:00
import { shouldEnableProxy } from "../../../src/node/proxy_agent"
/**
* Helper function to set an env variable.
*
* Returns a function to cleanup the env variable.
*/
function setEnv(name: string, value: string) {
process.env[name] = value
return {
cleanup() {
delete process.env[name]
},
}
}
describe("shouldEnableProxy", () => {
// Source: https://stackoverflow.com/a/48042799
const OLD_ENV = process.env
beforeEach(() => {
jest.resetModules() // Most important - it clears the cache
process.env = { ...OLD_ENV } // Make a copy
})
afterAll(() => {
process.env = OLD_ENV // Restore old environment
})
it("returns true when HTTP_PROXY is set", () => {
const { cleanup } = setEnv("HTTP_PROXY", "http://proxy.example.com")
expect(shouldEnableProxy()).toBe(true)
cleanup()
})
it("returns true when HTTPS_PROXY is set", () => {
const { cleanup } = setEnv("HTTPS_PROXY", "http://proxy.example.com")
expect(shouldEnableProxy()).toBe(true)
cleanup()
})
it("returns false when NO_PROXY is set", () => {
const { cleanup } = setEnv("NO_PROXY", "*")
expect(shouldEnableProxy()).toBe(false)
cleanup()
})
it("should return false when neither HTTP_PROXY nor HTTPS_PROXY is set", () => {
expect(shouldEnableProxy()).toBe(false)
})
it("should return false when NO_PROXY is set to https://example.com", () => {
const { cleanup } = setEnv("NO_PROXY", "https://example.com")
expect(shouldEnableProxy()).toBe(false)
cleanup()
})
it("should return false when NO_PROXY is set to http://example.com", () => {
const { cleanup } = setEnv("NO_PROXY", "http://example.com")
expect(shouldEnableProxy()).toBe(false)
cleanup()
})
})