Update app and tooling
This commit is contained in:
Lawrence Chen
parent
3046531bdd
commit
e620ec7349
4950 changed files with 2975120 additions and 10 deletions
485
node_modules/events-intercept/test/intercept.js
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485
node_modules/events-intercept/test/intercept.js
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var chai = require('chai'),
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expect = chai.expect,
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sinon = require('sinon'),
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eventsIntercept = require('../lib/events-intercept'),
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events = require('events'),
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emitterFactories;
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chai.use(require('sinon-chai'));
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chai.config.includeStack = true;
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emitterFactories = {
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"events-intercept EventEmitter": function() {return new eventsIntercept.EventEmitter()},
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"patched classic EventEmitter": function() {
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var classicEmitter = new events.EventEmitter();
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eventsIntercept.patch(classicEmitter);
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return classicEmitter;
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}
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}
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for (description in emitterFactories) {
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var emitterFactory = emitterFactories[description];
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(function(emitterFactory) {
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describe(description, function() {
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it('intercepts an event with a single interceptor', function(done) {
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var emitter = emitterFactory(),
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handler,
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interceptor;
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handler = function(arg) {
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expect(interceptor).to.have.been.called.once;
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expect(arg).to.equal('newValue');
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done();
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};
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interceptor = sinon.spy(function(arg, done) {
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expect(arg).to.equal('value');
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done(null, 'newValue');
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});
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emitter
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.intercept('test', interceptor)
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.on('test', handler)
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.emit('test', 'value');
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});
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it('intercepts an event with a multiple interceptors', function(done) {
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var emitter = emitterFactory(),
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handler,
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interceptor1,
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interceptor2,
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interceptor3;
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handler = function(arg) {
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expect(interceptor1).to.have.been.called.once;
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expect(interceptor2).to.have.been.called.once;
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expect(interceptor3).to.have.been.called.once;
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expect(arg).to.equal('finalValue');
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done();
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};
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interceptor1 = sinon.spy(function(arg, done) {
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expect(arg).to.equal('value');
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done(null, 'secondValue', 'anotherValue');
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});
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interceptor2 = sinon.spy(function(arg, arg2, done) {
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expect(arg).to.equal('secondValue');
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expect(arg2).to.equal('anotherValue');
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done(null, 'thirdValue');
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});
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interceptor3 = sinon.spy(function(arg, done) {
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expect(arg).to.equal('thirdValue');
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done(null, 'finalValue');
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});
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emitter
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.on('test', handler)
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.intercept('test', interceptor1)
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.intercept('test', interceptor2)
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.intercept('test', interceptor3)
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.emit('test', 'value');
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});
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it('warns once for 11+ interceptors (by default)', function(done) {
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var emitter = emitterFactory(),
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handler,
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interceptors = [],
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i;
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for (i=0; i < 12; i++) {
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interceptors[i] = sinon.spy(function(done) {
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done();
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});
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}
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handler = function(arg) {
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for (i=0; i < 12; i++) {
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expect(interceptors[i]).to.have.been.called.once;
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}
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expect(console.error).to.have.been.called.once;
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expect(console.trace).to.have.been.called.once;
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console.error.restore();
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console.trace.restore();
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done()
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}
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sinon.stub(console, "error");
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sinon.stub(console, "trace");
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emitter
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.on('test', handler);
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for (i=0; i < 12; i++) {
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emitter.intercept('test', interceptors[i]);
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}
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emitter.emit('test');
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});
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it('allows for setting the maxInterceptors', function(done) {
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var emitter = emitterFactory(),
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handler,
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interceptors = [],
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i;
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for (i=0; i < 6; i++) {
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interceptors[i] = sinon.spy(function(done) {
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done();
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});
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}
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handler = function(arg) {
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for (i=0; i < 6; i++) {
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expect(interceptors[i]).to.have.been.called.once;
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}
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expect(console.error).to.have.been.called.once;
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expect(console.trace).to.have.been.called.once;
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console.error.restore();
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console.trace.restore();
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done()
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}
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sinon.stub(console, "error");
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sinon.stub(console, "trace");
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emitter
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.setMaxInterceptors(5)
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.on('test', handler);
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for (i=0; i < 6; i++) {
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emitter.intercept('test', interceptors[i]);
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}
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emitter.emit('test');
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});
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it('throws for invalid maxInterceptors', function() {
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var emitter = emitterFactory();
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expect(function() {
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emitter.setMaxInterceptors('not a number');
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}).to.throw(Error);
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});
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it('triggers an error when an interceptor passes one', function(done) {
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var emitter = emitterFactory(),
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handler = sinon.spy(),
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interceptor,
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errorHandler;
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interceptor = sinon.spy(function(arg, done) {
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expect(arg).to.equal('value')
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done(new Error('test error'));
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});
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errorHandler = function(err) {
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expect(interceptor).to.have.been.called.once;
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expect(handler).to.not.have.been.called;
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expect(err.message).to.equal('test error');
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done();
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};
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emitter
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.on('test', handler)
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.intercept('test', interceptor)
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.on('error', errorHandler)
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.emit('test', 'value');
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});
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it('allows interceptors to trigger other events', function(done) {
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var emitter = emitterFactory(),
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handler = sinon.spy(),
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interceptor,
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errorHandler;
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interceptor = sinon.spy(function(arg, done) {
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expect(arg).to.equal('value')
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this.emit('newTest', 'newValue')
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});
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newHandler = (function(arg) {
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expect(arg).to.equal('newValue');
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expect(interceptor).to.have.been.called.once;
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expect(handler).to.not.have.been.called;
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done();
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});
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emitter
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.on('test', handler)
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.on('newTest', newHandler)
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.intercept('test', interceptor)
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.emit('test', 'value');
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});
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// it('can monkey patch standard EventEmitters', function(done) {
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// var emitter = new events.EventEmitter(),
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// handler,
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// interceptor;
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// handler = function(arg) {
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// expect(interceptor).to.have.been.called.once;
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// expect(arg).to.equal('newValue');
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// done();
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// };
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// interceptor = sinon.spy(function(arg, done) {
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// expect(arg).to.equal('value');
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// done(null, 'newValue');
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// });
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// eventsIntercept.patch(emitter);
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// emitter
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// .on('test', handler)
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// .intercept('test', interceptor)
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// .emit('test', 'value');
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// });
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it('behaves as before for events without interceptors', function(done) {
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var emitter = emitterFactory(),
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handler;
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handler = function(arg) {
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expect(arg).to.equal('value');
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done();
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};
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emitter
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.on('test', handler)
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.emit('test', 'value');
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});
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it('throws for interceptors that are not functions', function() {
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var emitter = emitterFactory(),
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interceptCall;
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interceptCall = function() {
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emitter.intercept('test', 'not a function');
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};
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expect(interceptCall).to.throw(Error);
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});
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it('emits newInterceptor for new interceptors', function(done) {
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var emitter = emitterFactory(),
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interceptor = function() {},
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newInterceptorCall;
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newInterceptorCall = function(event, _interceptor) {
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expect(event).to.equal('test');
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expect(_interceptor).to.equal(interceptor);
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done()
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}
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emitter
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.on('newInterceptor', newInterceptorCall)
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.intercept('test', interceptor);
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});
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it('lists all interceptors', function() {
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var emitter = emitterFactory(),
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interceptor1 = function() {},
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interceptor2 = function() {};
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expect(emitter.interceptors('test'), '0').to.deep.equal([]);
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emitter.intercept('test', interceptor1);
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expect(emitter.interceptors('test'), '1').to.deep.equal([interceptor1]);
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emitter.intercept('test', interceptor2);
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expect(emitter.interceptors('test'), '2').to.deep.equal([interceptor1, interceptor2]);
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});
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it('removes an interceptor', function() {
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var emitter = emitterFactory(),
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interceptor1 = function() {},
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interceptor2 = function() {},
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notAnInterceptor = function() {};
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emitter
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.intercept('test', interceptor1)
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.intercept('test', interceptor2);
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expect(emitter.interceptors('test'), '2').to.deep.equal([interceptor1, interceptor2]);
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emitter.removeInterceptor('test', interceptor1);
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expect(emitter.interceptors('test'), '1').to.deep.equal([interceptor2]);
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emitter.removeInterceptor('test', notAnInterceptor);
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expect(emitter.interceptors('test'), '0').to.deep.equal([interceptor2]);
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emitter.removeInterceptor('test', interceptor2);
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expect(emitter.interceptors('test'), '0').to.deep.equal([]);
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});
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it('removes all interceptors', function() {
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var emitter = emitterFactory(),
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interceptor1 = function() {},
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interceptor2 = function() {},
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removeHandler = sinon.spy()
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removeInterceptor = sinon.spy();
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emitter
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.intercept('removeInterceptor', removeInterceptor)
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.on('removeInterceptor', removeHandler)
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.intercept('test', interceptor1)
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.intercept('test', interceptor2)
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.removeAllInterceptors()
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.removeAllInterceptors();
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expect(removeHandler).to.have.been.called.twice;
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expect(removeInterceptor).to.have.been.called.once;
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expect(emitter.interceptors('test')).to.deep.equal([]);
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});
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it('removes specific interceptors', function() {
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var emitter = emitterFactory(),
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interceptor1 = function() {},
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interceptor2 = function() {},
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removeHandler = sinon.spy();
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emitter
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.on('removeInterceptor', removeHandler)
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.intercept('test', interceptor1)
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.intercept('anotherTest', interceptor2)
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.removeAllInterceptors('test')
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.removeAllInterceptors('notAnEvent');
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expect(removeHandler).to.have.been.called.once;
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expect(emitter.interceptors('anotherTest')).to.deep.equal([interceptor2]);
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});
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it('throws for removing interceptors that are not functions', function() {
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var emitter = emitterFactory(),
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interceptCall;
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interceptCall = function() {
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emitter.removeInterceptor('test', 'not a function');
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};
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expect(interceptCall).to.throw(Error);
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});
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it('emits removeInterceptor for removed interceptors', function(done) {
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var emitter = emitterFactory(),
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interceptor = function() {},
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removeInterceptorCall;
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removeInterceptorCall = function(event, _interceptor) {
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expect(event).to.equal('test');
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expect(_interceptor).to.equal(interceptor);
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done()
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}
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emitter
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.on('removeInterceptor', removeInterceptorCall)
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.intercept('test', interceptor)
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.removeInterceptor('test', interceptor);
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});
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it("doesn't do anything for removeInterceptor with no interceptor", function() {
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var emitter = emitterFactory(),
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interceptor = function() {},
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removeInterceptorCall = sinon.spy();
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emitter
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.on('removeInterceptor', removeInterceptorCall)
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.removeInterceptor('test', interceptor);
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expect(removeInterceptorCall).to.not.have.been.called;
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});
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it('calls an interceptor even if there is no handler', function(done) {
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var emitter = emitterFactory(),
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interceptor;
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interceptor = function(arg, interceptorDone) {
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expect(arg).to.equal('value');
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interceptorDone();
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done();
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}
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emitter
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.intercept('test', interceptor)
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.emit('test', 'value')
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});
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it('emits newListener and removeListener even if there are no handlers', function() {
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var emitter = emitterFactory(),
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newListenerInterceptor,
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removeListenerInterceptor,
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handler = sinon.spy();
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newListenerInterceptor = sinon.spy(function(event, interceptor, done) {
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expect(event).to.equal('test');
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expect(interceptor).to.equal(handler);
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done()
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});
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removeListenerInterceptor = sinon.spy(function(event, interceptor, done) {
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expect(event).to.equal('test');
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expect(interceptor).to.equal(handler);
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done()
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});
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emitter
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.intercept('newListener', newListenerInterceptor)
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.intercept('removeListener', removeListenerInterceptor)
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.on('test', handler)
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.removeListener('test', handler);
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expect(emitter.listeners('newListener')).to.be.empty;
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expect(emitter.listeners('removeListener')).to.be.empty;
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expect(handler).to.not.have.been.called;
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expect(newListenerInterceptor).to.have.been.called.once;
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expect(removeListenerInterceptor).to.have.been.called.once;
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})
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it('emits newListener and removeListener if there are handlers', function(done) {
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var emitter = emitterFactory(),
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newListenerInterceptor,
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removeListenerInterceptor,
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newListenerHandler = sinon.spy(),
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removeListenerHandler = sinon.spy(),
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handler = sinon.spy();
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newListenerInterceptor = function(event, interceptor, done) {
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expect(event).to.equal('test');
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expect(interceptor).to.equal(handler);
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done()
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}
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removeListenerInterceptor = function(event, interceptor, done) {
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expect(event).to.equal('test');
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expect(interceptor).to.equal(handler);
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done()
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}
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emitter
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.on('removeListener', removeListenerHandler)
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.on('newListener', newListenerHandler)
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.intercept('newListener', newListenerInterceptor)
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.intercept('removeListener', removeListenerInterceptor)
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.on('test', handler)
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.removeListener('test', handler);
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expect(handler).to.not.have.been.called;
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expect(emitter.listeners('newListener')).to.deep.equal([newListenerHandler]);
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expect(emitter.listeners('removeListener')).to.deep.equal([removeListenerHandler]);
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expect(emitter.listeners('test')).to.deep.equal([]);
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expect(newListenerHandler).to.have.been.called.once;
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expect(removeListenerHandler).to.have.been.called.once;
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done()
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})
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});
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})(emitterFactory);
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}
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