import util from 'src/js/util.js'; import Regexper from 'src/js/regexper.js'; import Parser from 'src/js/parser/javascript.js'; import Snap from 'snapsvg'; import Q from 'q'; describe('regexper.js', function() { beforeEach(function() { this.root = document.createElement('div'); this.root.innerHTML = [ '
', '
', '', '
', '
', '
', '
', '
example styles
' ].join(''); this.regexper = new Regexper(this.root); spyOn(this.regexper, '_setHash'); spyOn(this.regexper, '_getHash').and.returnValue('example hash value'); }); describe('#keypressListener', function() { beforeEach(function() { this.event = util.customEvent('keypress'); spyOn(this.event, 'preventDefault'); spyOn(this.regexper.form, 'dispatchEvent'); }); describe('when the shift key is not depressed', function() { beforeEach(function() { this.event.shiftKey = false; this.event.keyCode = 13; }); it('does not prevent the default action', function() { this.regexper.keypressListener(this.event); expect(this.event.returnValue).not.toEqual(false); expect(this.event.preventDefault).not.toHaveBeenCalled(); }); it('does not trigger a submit event', function() { this.regexper.keypressListener(this.event); expect(this.regexper.form.dispatchEvent).not.toHaveBeenCalled(); }); }); describe('when the keyCode is not 13 (Enter)', function() { beforeEach(function() { this.event.shiftKey = true; this.event.keyCode = 42; }); it('does not prevent the default action', function() { this.regexper.keypressListener(this.event); expect(this.event.returnValue).not.toEqual(false); expect(this.event.preventDefault).not.toHaveBeenCalled(); }); it('does not trigger a submit event', function() { this.regexper.keypressListener(this.event); expect(this.regexper.form.dispatchEvent).not.toHaveBeenCalled(); }); }); describe('when the shift key is depressed and the keyCode is 13 (Enter)', function() { beforeEach(function() { this.event.shiftKey = true; this.event.keyCode = 13; }); it('prevents the default action', function() { this.regexper.keypressListener(this.event); expect(this.event.returnValue).not.toEqual(true); expect(this.event.preventDefault).toHaveBeenCalled(); }); it('triggers a submit event', function() { var event; this.regexper.keypressListener(this.event); expect(this.regexper.form.dispatchEvent).toHaveBeenCalled(); event = this.regexper.form.dispatchEvent.calls.mostRecent().args[0]; expect(event.type).toEqual('submit'); }); }); }); describe('#documentKeypressListener', function() { beforeEach(function() { this.event = util.customEvent('keyup'); this.regexper.runningParser = jasmine.createSpyObj('parser', ['cancel']); }); describe('when the keyCode is not 27 (Escape)', function() { beforeEach(function() { this.event.keyCode = 42; }); it('does not cancel the parser', function() { this.regexper.documentKeypressListener(this.event); expect(this.regexper.runningParser.cancel).not.toHaveBeenCalled(); }); }); describe('when the keyCode is 27 (Escape)', function() { beforeEach(function() { this.event.keyCode = 27; }); it('cancels the parser', function() { this.regexper.documentKeypressListener(this.event); expect(this.regexper.runningParser.cancel).toHaveBeenCalled(); }); }); }); describe('#submitListener', function() { beforeEach(function() { this.event = util.customEvent('submit'); spyOn(this.event, 'preventDefault'); this.regexper.field.value = 'example value'; }); it('prevents the default action', function() { this.regexper.submitListener(this.event); expect(this.event.returnValue).not.toEqual(true); expect(this.event.preventDefault).toHaveBeenCalled(); }); it('sets the location.hash', function() { this.regexper.submitListener(this.event); expect(this.regexper._setHash).toHaveBeenCalledWith('example value'); }); describe('when setting location.hash fails', function() { beforeEach(function() { this.regexper._setHash.and.throwError('hash failure'); }); it('disables the permalink', function() { this.regexper.submitListener(this.event); expect(this.regexper.permalinkEnabled).toEqual(false); }); it('shows the expression directly', function() { spyOn(this.regexper, 'showExpression'); this.regexper.submitListener(this.event); expect(this.regexper.showExpression).toHaveBeenCalledWith('example value'); }); }); }); describe('#hashchangeListener', function() { it('enables the permalink', function() { this.regexper.hashchangeListener(); expect(this.regexper.permalinkEnabled).toEqual(true); }); it('shows the expression from the hash', function() { spyOn(this.regexper, 'showExpression'); this.regexper.hashchangeListener(); expect(this.regexper.showExpression).toHaveBeenCalledWith('example hash value'); }); }); describe('#updatePercentage', function() { beforeEach(function() { this.event = util.customEvent('updateStatus', { percentage: 0.42 }); }); it('sets the width of the progress bar', function() { this.regexper.updatePercentage(this.event); expect(this.regexper.percentage.style.width).toEqual('42%'); }); }); describe('#bindListeners', function() { beforeEach(function() { spyOn(this.regexper, 'keypressListener'); spyOn(this.regexper, 'submitListener'); spyOn(this.regexper, 'updatePercentage'); spyOn(this.regexper, 'documentKeypressListener'); spyOn(this.regexper, 'hashchangeListener'); }); it('binds #keypressListener to keypress on the text field', function() { spyOn(this.regexper.field, 'addEventListener'); this.regexper.bindListeners(); expect(this.regexper.field.addEventListener).toHaveBeenCalledWith('keypress', jasmine.any(Function)); this.regexper.field.addEventListener.calls.mostRecent().args[1](); expect(this.regexper.keypressListener).toHaveBeenCalled(); }); it('binds #submitListener to submit on the form', function() { spyOn(this.regexper.form, 'addEventListener'); this.regexper.bindListeners(); expect(this.regexper.form.addEventListener).toHaveBeenCalledWith('submit', jasmine.any(Function)); this.regexper.form.addEventListener.calls.mostRecent().args[1](); expect(this.regexper.submitListener).toHaveBeenCalled(); }); it('binds #updatePercentage to updateStatus on the root', function() { spyOn(this.regexper.root, 'addEventListener'); this.regexper.bindListeners(); expect(this.regexper.root.addEventListener).toHaveBeenCalledWith('updateStatus', jasmine.any(Function)); this.regexper.root.addEventListener.calls.first().args[1](); expect(this.regexper.updatePercentage).toHaveBeenCalled(); }); it('binds #documentKeypressListener to keyup on the root', function() { spyOn(this.regexper.root, 'addEventListener'); this.regexper.bindListeners(); expect(this.regexper.root.addEventListener).toHaveBeenCalledWith('keyup', jasmine.any(Function)); this.regexper.root.addEventListener.calls.mostRecent().args[1](); expect(this.regexper.documentKeypressListener).toHaveBeenCalled(); }); it('binds #hashchangeListener to hashchange on the window', function() { spyOn(window, 'addEventListener'); this.regexper.bindListeners(); expect(window.addEventListener).toHaveBeenCalledWith('hashchange', jasmine.any(Function)); window.addEventListener.calls.mostRecent().args[1](); expect(this.regexper.hashchangeListener).toHaveBeenCalled(); }); }); describe('#_trackEvent', function() { it('adds a _trackEvent call to gaq', function() { this.regexper._trackEvent('category', 'action'); expect(this.regexper.gaq).toContain(['_trackEvent', 'category', 'action']); }); }); describe('#showExpression', function() { beforeEach(function() { spyOn(this.regexper, 'renderRegexp').and.returnValue(jasmine.createSpyObj('renderRegexp', ['done'])); }); it('sets the text field value', function() { this.regexper.showExpression('example expression'); expect(this.regexper.field.value).toEqual('example expression'); }); it('clears the state', function() { this.regexper.showExpression(''); expect(this.regexper.state).toEqual(''); }); describe('when the expression is not blank', function() { it('renders the expression', function() { this.regexper.showExpression('example expression'); expect(this.regexper.renderRegexp).toHaveBeenCalledWith('example expression'); }); }); }); describe('#updateLinks', function() { beforeEach(function() { spyOn(this.regexper, 'buildBlobURL'); }); describe('when blob URLs are supported', function() { beforeEach(function() { this.regexper.buildBlobURL.and.returnValue('http://example.com/blob'); }); it('sets the download link href', function() { this.regexper.updateLinks(); expect(this.regexper.download.href).toEqual('http://example.com/blob'); }); }); describe('when blob URLs are not supported', function() { beforeEach(function() { this.regexper.buildBlobURL.and.throwError('blob failure'); }); it('hides the download link', function() { this.regexper.updateLinks(); expect(this.regexper.download.parentNode.style.display).toEqual('none'); }); }); describe('when the permalink is enabled', function() { beforeEach(function() { this.regexper.permalinkEnabled = true; }); it('sets the permalink href', function() { this.regexper.updateLinks(); expect(this.regexper.permalink.href).toEqual(location.toString()); }); }); describe('when the permalink is disabled', function() { beforeEach(function() { this.regexper.permalinkEnabled = false; }); it('hides the permalink', function() { this.regexper.updateLinks(); expect(this.regexper.permalink.parentNode.style.display).toEqual('none'); }); }); }); describe('#displayWarnings', function() { it('adds a list item for each warning', function() { this.regexper.displayWarnings(['warning 1', 'warning 2']); expect(this.regexper.warnings.innerHTML).toEqual('
  • warning 1
  • warning 2
  • '); }); }); describe('#renderRegexp', function() { beforeEach(function() { this.parsePromise = Q.defer(); this.renderPromise = Q.defer(); spyOn(Parser.prototype, 'parse').and.returnValue(this.parsePromise.promise); spyOn(Parser.prototype, 'render').and.returnValue(this.renderPromise.promise); spyOn(Parser.prototype, 'cancel'); spyOn(this.regexper, '_trackEvent'); spyOn(this.regexper, 'updateLinks'); spyOn(this.regexper, 'displayWarnings'); this.regexper.renderRegexp('example expression'); }); it('sets the state to "is-loading"', function() { expect(this.regexper.state).toEqual('is-loading'); }); it('tracks the beginning of the render', function() { expect(this.regexper._trackEvent).toHaveBeenCalledWith('visualization', 'start'); }); it('keeps a copy of the running parser', function() { expect(this.regexper.runningParser).toBeTruthy(); }); it('parses the expression', function() { expect(this.regexper.runningParser.parse).toHaveBeenCalledWith('example expression'); }); describe('when parsing fails', function() { beforeEach(function(done) { this.parsePromise.reject('example parse error'); setTimeout(done, 10); }); it('sets the state to be "has-error"', function() { expect(this.regexper.state).toEqual('has-error'); }); it('displays the error message', function() { expect(this.regexper.error.innerHTML).toEqual('example parse error'); }); it('tracks the parse error', function() { expect(this.regexper._trackEvent).toHaveBeenCalledWith('visualization', 'parse error'); }); }); describe('when parsing succeeds', function() { beforeEach(function(done) { this.parser = this.regexper.runningParser; this.parsePromise.resolve(this.parser); setTimeout(done, 10); }); it('renders the expression', function() { expect(this.parser.render).toHaveBeenCalledWith(this.regexper.svg, this.regexper.svgStyles); }); }); describe('when rendering is complete', function() { beforeEach(function(done) { this.parsePromise.resolve(this.regexper.runningParser); this.renderPromise.resolve(); setTimeout(done, 10); }); it('sets the state to "has-results"', function() { expect(this.regexper.state).toEqual('has-results'); }); it('updates the links', function() { expect(this.regexper.updateLinks).toHaveBeenCalled(); }); it('displays the warnings', function() { expect(this.regexper.displayWarnings).toHaveBeenCalled(); }); it('tracks the complete render', function() { expect(this.regexper._trackEvent).toHaveBeenCalledWith('visualization', 'complete'); }); it('sets the runningParser to false', function() { expect(this.regexper.runningParser).toBeFalsy(); }); }); describe('when the rendering is cancelled', function() { beforeEach(function(done) { this.parsePromise.resolve(this.regexper.runningParser); this.renderPromise.reject('Render cancelled'); setTimeout(done, 10); }); it('clears the state', function() { expect(this.regexper.state).toEqual(''); }); it('tracks the cancelled render', function() { expect(this.regexper._trackEvent).toHaveBeenCalledWith('visualization', 'cancelled'); }); it('sets the runningParser to false', function() { expect(this.regexper.runningParser).toBeFalsy(); }); }); describe('when the rendering fails', function() { beforeEach(function(done) { this.parsePromise.resolve(this.regexper.runningParser); this.renderPromise.reject('example render failure'); setTimeout(done, 10); }); it('tracks the failed render', function() { expect(this.regexper._trackEvent).toHaveBeenCalledWith('visualization', 'exception'); }); it('sets the runningParser to false', function() { expect(this.regexper.runningParser).toBeFalsy(); }); }); }); });