Files
cypress/cli/test/lib/exec/xvfb_spec.js
2021-02-08 16:49:52 +10:00

112 lines
2.8 KiB
JavaScript

require('../../spec_helper')
const os = require('os')
const xvfb = require(`${lib}/exec/xvfb`)
describe('lib/exec/xvfb', function () {
beforeEach(function () {
os.platform.returns('win32')
})
context('debugXvfb', function () {
const { Debug } = xvfb._debugXvfb
const { namespaces } = Debug
beforeEach(() => {
Debug.enable(namespaces)
})
afterEach(() => {
Debug.enable(namespaces)
})
it('outputs when enabled', function () {
sinon.stub(process.stderr, 'write').returns(undefined)
Debug.enable(xvfb._debugXvfb.namespace)
xvfb._xvfb._onStderrData('asdf')
expect(process.stderr.write).to.be.calledWithMatch('cypress:xvfb')
expect(process.stderr.write).to.be.calledWithMatch('asdf')
})
it('does not output when disabled', function () {
sinon.stub(process.stderr, 'write')
Debug.disable()
xvfb._xvfb._onStderrData('asdf')
expect(process.stderr.write).not.to.be.calledWithMatch('cypress:xvfb')
expect(process.stderr.write).not.to.be.calledWithMatch('asdf')
})
})
context('xvfbOptions', function () {
it('sets explicit screen', () => {
expect(xvfb._xvfbOptions).to.have.property('xvfb_args').that.includes('-screen')
})
})
context('#start', function () {
it('passes', function () {
sinon.stub(xvfb._xvfb, 'startAsync').resolves()
return xvfb.start()
})
it('fails with error message', function () {
const message = 'nope'
sinon.stub(xvfb._xvfb, 'startAsync').rejects(new Error(message))
return xvfb.start()
.then(() => {
throw new Error('Should have thrown an error')
})
.catch((err) => {
expect(err.message).to.include(message)
})
})
it('fails when xvfb exited with non zero exit code', function () {
const e = new Error('something bad happened')
e.nonZeroExitCode = true
sinon.stub(xvfb._xvfb, 'startAsync').rejects(e)
return xvfb.start()
.then(() => {
throw new Error('Should have thrown an error')
})
.catch((err) => {
expect(err.known).to.be.true
expect(err.message).to.include('something bad happened')
expect(err.message).to.include('Xvfb exited with a non zero exit code.')
})
})
})
context('#isNeeded', function () {
it('does not need xvfb on osx', function () {
os.platform.returns('darwin')
expect(xvfb.isNeeded()).to.be.false
})
it('does not need xvfb on linux when DISPLAY is set', function () {
os.platform.returns('linux')
process.env.DISPLAY = ':99'
expect(xvfb.isNeeded()).to.be.false
})
it('does need xvfb on linux when no DISPLAY is set', function () {
os.platform.returns('linux')
expect(xvfb.isNeeded()).to.be.true
})
})
})