- Testing: Switch to Cypress with code coverage

- npm: Add peerDeps

cypress/integration/accessibility.js

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+describe('Accessibility', function () {
+  beforeEach(() => {
+    cy.visit('/editor/svg-editor-es.html');
+    cy.injectAxe();
+  });
+
+  // https://www.npmjs.com/package/cypress-axe
+  it('Has no detectable a11y violations on load', () => {
+    // Configure aXe and test the page at initial load
+    cy.configureAxe({
+      // Todo: Reenable when have time to fix
+      // See https://www.deque.com/axe/axe-for-web/documentation/api-documentation/#user-content-parameters-1
+      rules: [{
+        id: 'meta-viewport',
+        enabled: false
+      }]
+      /*
+      branding: {
+        brand: String,
+        application: String
+      },
+      reporter: 'option',
+      checks: [Object],
+      rules: [Object],
+      locale: Object
+      */
+    });
+    cy.checkA11y();
+  });
+});

cypress/integration/ui.js

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+import {
+  approveStorage, openMainMenu,
+  openEditorPreferences
+} from '../support/ui-test-helper.js';
+
+describe('UI tests', function () {
+  beforeEach(() => {
+    cy.visit('/editor/svg-editor.html');
+    // Ensure we test against English regardless of the original locale
+    approveStorage();
+    openEditorPreferences();
+    cy.get('#lang_select').select('en');
+    cy.get('#tool_prefs_save').click();
+  });
+
+  it('Editor - No parameters: Has export button', () => {
+    openMainMenu();
+    cy.get('#tool_export');
+  });
+
+  it('Editor - No parameters: Export button clicking; dialog opens', () => {
+    openMainMenu();
+    cy.get('#tool_export').click();
+    cy.get('#dialog_content select');
+  });
+
+  it('Editor - No parameters: Drag control point of arc path', () => {
+    const randomOffset = () => 2 + Math.round(10 + Math.random() * 40);
+    cy.get('#tool_source').click();
+
+    cy.get('#svg_source_textarea')
+      .type(`<svg width="640" height="480" xmlns="http://www.w3.org/2000/svg">
+   <g class="layer">
+    <title>Layer 1</title>
+    <path d="m187,194a114,62 0 1 0 219,2" fill="#FF0000" stroke="#000000" stroke-width="5"/>
+   </g>
+  </svg>`);
+    cy.get('#tool_source_save').click();
+    cy.get('#svg_1').click().click();
+
+    cy.get('#pathpointgrip_0').trigger('mousedown', {which: 1})
+      .trigger('mousemove', randomOffset(), randomOffset())
+      .trigger('mouseup', {force: true});
+    cy.get('#pathpointgrip_1').trigger('mousedown', {which: 1})
+      .trigger('mousemove', randomOffset(), randomOffset())
+      .trigger('mouseup', {force: true});
+
+    cy.get('#svg_1[d]').should('not.contain', 'NaN');
+  });
+});

cypress/plugins/index.js

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+/* globals module, require */
+/* eslint-disable import/no-commonjs */
+
+// ***********************************************************
+// This example plugins/index.js can be used to load plugins
+//
+// You can change the location of this file or turn off loading
+// the plugins file with the 'pluginsFile' configuration option.
+//
+// You can read more here:
+// https://on.cypress.io/plugins-guide
+// ***********************************************************
+
+// This function is called when a project is opened or re-opened (e.g. due to
+// the project's config changing)
+
+const codeCoverageTask = require('@cypress/code-coverage/task.js');
+
+module.exports = (on, config) => {
+  // `on` is used to hook into various events Cypress emits
+  // `config` is the resolved Cypress config
+
+  // `on` is used to hook into various events Cypress emits
+  // `config` is the resolved Cypress config
+
+  // https://docs.cypress.io/guides/tooling/code-coverage.html#Install-the-plugin
+  on('task', codeCoverageTask);
+};

cypress/support/commands.js

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+// ***********************************************
+// This example commands.js shows you how to
+// create various custom commands and overwrite
+// existing commands.
+//
+// For more comprehensive examples of custom
+// commands please read more here:
+// https://on.cypress.io/custom-commands
+// ***********************************************
+//
+//
+// -- This is a parent command --
+// Cypress.Commands.add("login", (email, password) => { ... })
+//
+//
+// -- This is a child command --
+// Cypress.Commands.add("drag", { prevSubject: 'element'}, (subject, options) => { ... })
+//
+//
+// -- This is a dual command --
+// Cypress.Commands.add("dismiss", { prevSubject: 'optional'}, (subject, options) => { ... })
+//
+//
+// -- This will overwrite an existing command --
+// Cypress.Commands.overwrite("visit", (originalFn, url, options) => { ... })

cypress/support/index.js

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+// ***********************************************************
+// This example support/index.js is processed and
+// loaded automatically before your test files.
+//
+// This is a great place to put global configuration and
+// behavior that modifies Cypress.
+//
+// You can change the location of this file or turn off
+// automatically serving support files with the
+// 'supportFile' configuration option.
+//
+// You can read more here:
+// https://on.cypress.io/configuration
+// ***********************************************************
+
+// Import commands.js using ES2015 syntax:
+import './commands.js';
+
+// Alternatively you can use CommonJS syntax:
+// require('./commands')
+
+/**
+ * FIDDLE
+ * Adds "cy.runExample()" custom command
+ * Accets test object property (or array thereof):
+ *    Required: `test`
+ *    Optional: `html`, `name`, `description`
+ *    With `testExamples` only: `skip` and `only`
+ * @see https://github.com/cypress-io/cypress-fiddle
+ * @example import {testExamples} from '@cypress/fiddle';
+ */
+import '@cypress/fiddle';
+
+/**
+ * COVERAGE
+ * @see https://docs.cypress.io/guides/tooling/code-coverage.html#Install-the-plugin
+ */
+import '@cypress/code-coverage/support.js';
+
+/**
+ * ACCESSIBILITY
+ * @see https://www.npmjs.com/package/cypress-axe
+ */
+import 'cypress-axe';

cypress/support/ui-test-helper.js

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+export const approveStorage = () => {
+  return cy.get('#dialog_buttons > input[type=button][data-ok]')
+    .click();
+};
+
+export const openMainMenu = () => {
+  return cy.get('#main_icon').click();
+};
+
+export const openEditorPreferences = () => {
+  openMainMenu();
+  return cy.get('#tool_prefs_option').click();
+};