- Testing: Switch to Cypress with code coverage

- npm: Add peerDeps

cypress/integration/accessibility.js

@@ -0,0 +1,30 @@
+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

@@ -0,0 +1,50 @@
+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');
+  });
+});