Gazebo_simulation-Frontend/node_modules/exec-sh/test/exec-sh.js

150 lines
4.3 KiB
JavaScript

/* global describe, it, beforeEach, afterEach */
var execSh = require('..')
var assert = require('assert')
var sinon = require('sinon')
var merge = require('merge')
var cp = require('child_process')
describe('exec-sh', function () {
describe('module.exports', function () {
it('should export a single function', function () {
assert.strictEqual(typeof execSh, 'function')
})
})
describe('#execSh() arguments', function () {
var spawn, exitCode, stream
stream = {
on: function (e, c) {
if (e === 'data') {
// execute callback two times to check if stream
// aggregation works correctly
c('1')
c('2')
}
}
}
beforeEach(function () {
exitCode = 0
spawn = sinon.stub(cp, 'spawn')
spawn.returns({
spawn_return: true,
on: function (e, c) {
if (e === 'close') {
c(exitCode)
}
},
stdout: stream,
stderr: stream
})
})
afterEach(function () {
cp.spawn.restore()
})
it('should pass command to spawn function', function () {
execSh('command')
sinon.assert.calledOnce(spawn)
assert.strictEqual('command', spawn.getCall(0).args[1][1])
})
it('should accept array of commands to run', function () {
execSh(['command1', 'command2'])
sinon.assert.calledOnce(spawn)
assert.strictEqual('command1;command2', spawn.getCall(0).args[1][1])
})
it('should accept true as options argument', function () {
execSh('command', true)
sinon.assert.calledOnce(spawn)
assert.strictEqual(spawn.getCall(0).args[2].stdio, null)
})
it('should merge defaults with options', function () {
execSh('command')
var defOptionsClone = merge(true, spawn.getCall(0).args[2])
var options = { key: 'value' }
execSh('command', options)
assert.deepEqual(spawn.getCall(1).args[2], merge(true, defOptionsClone, options))
// change value of the fist property in default options to null
assert.ok(Object.keys(defOptionsClone).length > 0)
defOptionsClone[Object.keys(defOptionsClone)[0]] = null
execSh('command', defOptionsClone)
assert.deepEqual(spawn.getCall(2).args[2], defOptionsClone)
})
it("should accept optional 'callback' parameter", function () {
var callback = sinon.spy()
execSh('command', callback)
execSh('command', { key: 'value' }, callback)
sinon.assert.callCount(callback, 2)
})
it("should use 'cmd /C' command prefix on windows", function () {
var platform = process.platform
Object.defineProperty(process, 'platform', { value: 'win32' })
execSh('command')
Object.defineProperty(process, 'platform', { value: platform })
sinon.assert.calledOnce(spawn)
assert.strictEqual(spawn.getCall(0).args[0], 'cmd')
})
it("should use 'sh -c' command prefix on *nix", function () {
var platform = process.platform
process.platform = 'linux'
execSh('command')
process.platform = platform
sinon.assert.calledOnce(spawn)
assert.strictEqual(spawn.getCall(0).args[1][0], '-c')
assert.strictEqual(spawn.getCall(0).args[0], 'sh')
})
it('should return spawn() result', function () {
assert(execSh('command').spawn_return)
})
it('should aggregate stdoout and stderr', function (done) {
execSh('command', function (_err, stdout, stderr) {
assert.strictEqual(stdout, '12')
assert.strictEqual(stderr, '12')
done()
})
})
it('should catch exceptions thrown by spawn', function (done) {
spawn.throws()
execSh('command', function (err, stdout, stderr) {
assert(err instanceof Error)
done()
})
})
it('should return empty stdout and stderr when spawn throws', function (done) {
spawn.throws()
stream = null
execSh('command', function (_err, stdout, stderr) {
assert.strictEqual(stderr, '')
assert.strictEqual(stdout, '')
done()
})
})
it('should run callback with error when shell exit with non-zero code', function (done) {
exitCode = 1
execSh('command', function (err) {
assert(err instanceof Error)
assert.equal(exitCode, err.code)
done()
})
})
})
})