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 = [ '
', '
', '
', '
', '
', '
' ].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 = document.createEvent('Event'); 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('#submitListener', function() { beforeEach(function() { this.event = document.createEvent('Event'); 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 = document.createEvent('Event'); this.event.detail = { 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() { it('binds #keypressListener to keypress on the text field', function() { spyOn(this.regexper.field, 'addEventListener'); spyOn(this.regexper, 'keypressListener'); 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'); spyOn(this.regexper, 'submitListener'); 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'); spyOn(this.regexper, 'updatePercentage'); this.regexper.bindListeners(); expect(this.regexper.root.addEventListener).toHaveBeenCalledWith('updateStatus', jasmine.any(Function)); this.regexper.root.addEventListener.calls.mostRecent().args[1](); expect(this.regexper.updatePercentage).toHaveBeenCalled(); }); it('binds #hashchangeListener to hashchange on the window', function() { spyOn(window, 'addEventListener'); spyOn(this.regexper, 'hashchangeListener'); this.regexper.bindListeners(); expect(window.addEventListener).toHaveBeenCalledWith('hashchange', jasmine.any(Function)); window.addEventListener.calls.mostRecent().args[1](); expect(this.regexper.hashchangeListener).toHaveBeenCalled(); }); }); describe('#showExpression', function() { beforeEach(function() { this.renderPromise = Q.defer(); spyOn(this.regexper, 'renderRegexp').and.returnValue(this.renderPromise.promise); }); it('sets the text field value', function() { this.regexper.showExpression('example expression'); expect(this.regexper.field.value).toEqual('example expression'); }); describe('when the expression is blank', function() { it('clears the state', function() { this.regexper.showExpression(''); expect(this.regexper.state).toEqual(''); }); }); describe('when the expression is not blank', function() { it('sets the state to "is-loading"', function() { this.regexper.showExpression('example expression'); expect(this.regexper.state).toEqual('is-loading'); }); it('renders the expression', function() { this.regexper.showExpression('example expression'); expect(this.regexper.renderRegexp).toHaveBeenCalledWith('example expression'); }); describe('when the expression finishes rendering', function() { beforeEach(function(done) { spyOn(this.regexper, 'updateLinks'); this.regexper.showExpression('example expression'); this.renderPromise.resolve(); setTimeout(done, 100); }); 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(); }); }); }); }); 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('#renderRegexp', function() { beforeEach(function() { spyOn(parser, 'parse'); }); it('parses the expression', function(done) { this.regexper.renderRegexp('example expression'); setTimeout(() => { expect(parser.parse).toHaveBeenCalledWith('example expression'); done(); }, 100); }); it('replaces newlines with "\\n"', function(done) { this.regexper.renderRegexp('multiline\nexpression'); setTimeout(() => { expect(parser.parse).toHaveBeenCalledWith('multiline\\nexpression'); done(); }, 100); }); describe('when parsing fails', function() { beforeEach(function(done) { parser.parse.and.throwError('parsing failure'); this.regexper.renderRegexp('example expression'); setTimeout(done, 100); }); 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('Error: parsing failure'); }); }); describe('when parsing succeeds', function() { beforeEach(function(done) { this.renderPromise = Q.defer(); this.parsedExpr = jasmine.createSpyObj('parsedExpr', ['render']); this.parsedExpr.render.and.returnValue(this.renderPromise.promise); parser.parse.and.returnValue(this.parsedExpr); spyOn(this.regexper.snap, 'group').and.returnValue('example group'); this.regexper.renderRegexp('example expression'); setTimeout(done, 100); }); it('renders the parsed expression', function() { expect(this.parsedExpr.render).toHaveBeenCalledWith('example group'); }); describe('when rendering is complete', function() { beforeEach(function(done) { this.result = jasmine.createSpyObj('result', ['getBBox', 'transform']); this.result.getBBox.and.returnValue({ x: 4, y: 2, width: 42, height: 24 }); spyOn(this.regexper.snap, 'attr'); this.renderPromise.resolve(this.result); setTimeout(done, 100); }); it('positions the renderd expression', function() { expect(this.result.transform).toHaveBeenCalledWith(Snap.matrix() .translate(6, 8)); }); it('sets the dimensions of the image', function() { expect(this.regexper.snap.attr).toHaveBeenCalledWith({ width: 62, height: 44 }); }); }); }); }); });