- Linting (ESLint): Check eslintrc file itself

- Linting: Add linting plugins (mocha, chai-expect, chai-friendly, cypress)
- Testing: Change cypress plugins file to ESM (so can set up any needed unit testing tasks)

.eslintignore

@@ -32,3 +32,4 @@ editor/external/dom-polyfill/*
 
 mochawesome-report
 releases
+!.eslintrc.js

.eslintrc.js

@@ -1,7 +1,9 @@
+'use strict';
+
 module.exports = {
-  extends: ["ash-nazg/sauron-node"],
+  extends: ['ash-nazg/sauron-node'],
   parserOptions: {
-    sourceType: "module"
+    sourceType: 'module'
   },
   env: {
     browser: true
@@ -14,13 +16,13 @@ module.exports = {
         // In case we need to extend
         customTags: []
       },
-      augmentsExtendsReplacesDocs: true,
+      augmentsExtendsReplacesDocs: true
       // Todo: Figure out why this is not working and why seem to have to
       //    disable for all Markdown:
       /*
       baseConfig: {
         rules: {
-          "no-multi-spaces": "off"
+          'no-multi-spaces': 'off'
         }
       }
       */
@@ -30,30 +32,30 @@ module.exports = {
     // Locales have no need for importing outside of SVG-Edit
     {
       files: [
-        "editor/locale/lang.*.js", "editor/extensions/ext-locale/**",
+        'editor/locale/lang.*.js', 'editor/extensions/ext-locale/**',
-        "docs/tutorials/ExtensionDocs.md"
+        'docs/tutorials/ExtensionDocs.md'
       ],
       rules: {
-        "import/no-anonymous-default-export": ["off"]
+        'import/no-anonymous-default-export': ['off']
       }
     },
     // These browser files don't do importing or requiring
     {
       files: [
-        "editor/svgpathseg.js", "editor/touch.js", "editor/typedefs.js",
+        'editor/svgpathseg.js', 'editor/touch.js', 'editor/typedefs.js',
-        "editor/redirect-on-no-module-support.js",
+        'editor/redirect-on-no-module-support.js',
-        "editor/extensions/imagelib/index.js",
+        'editor/extensions/imagelib/index.js',
-        "editor/external/dom-polyfill/dom-polyfill.js",
+        'editor/external/dom-polyfill/dom-polyfill.js',
-        "screencasts/svgopen2010/script.js"
+        'screencasts/svgopen2010/script.js'
       ],
       rules: {
-        "import/unambiguous": ["off"]
+        'import/unambiguous': ['off']
       }
     },
     {
       files: ['**/*.html', 'screencasts/**'],
       globals: {
-        root: "off"
+        root: 'off'
       },
       settings: {
         polyfills: [
@@ -66,10 +68,19 @@ module.exports = {
         'import/unambiguous': 'off'
       }
     },
+    {
+      files: '.eslintrc.js',
+      extends: [
+        'plugin:node/recommended-script'
+      ],
+      rules: {
+        'import/no-commonjs': 0
+      }
+    },
     // Our Markdown rules (and used for JSDoc examples as well, by way of
     //   our use of `jsdoc/check-examples` within `ash-nazg`)
     {
-      files: ["**/*.md"],
+      files: ['**/*.md'],
       settings: {
         polyfills: [
           // Tutorials
@@ -78,28 +89,28 @@ module.exports = {
         ]
       },
       rules: {
-        "eol-last": ["off"],
+        'eol-last': ['off'],
-        "no-console": ["off"],
+        'no-console': ['off'],
-        "no-undef": ["off"],
+        'no-undef': ['off'],
-        "no-unused-vars": ["warn"],
+        'no-unused-vars': ['warn'],
-        "padded-blocks": ["off"],
+        'padded-blocks': ['off'],
-        "import/unambiguous": ["off"],
+        'import/unambiguous': ['off'],
-        "import/no-unresolved": ["off"],
+        'import/no-unresolved': ['off'],
-        "node/no-missing-import": ["off"],
+        'node/no-missing-import': ['off'],
-        "no-multi-spaces": "off",
+        'no-multi-spaces': 'off',
-        "sonarjs/no-all-duplicated-branches": "off",
+        'sonarjs/no-all-duplicated-branches': 'off',
         'node/no-unpublished-import': ['error', {allowModules: ['@cypress/fiddle']}],
-        "no-alert": "off",
+        'no-alert': 'off',
         // Disable until may fix https://github.com/gajus/eslint-plugin-jsdoc/issues/211
-        "indent": "off"
+        indent: 'off'
       }
     },
     // Dis-apply Node rules mistakenly giving errors with browser files,
     //  and treating Node global `root` as being present for shadowing
     {
-      files: ["editor/**"],
+      files: ['editor/**'],
       globals: {
-        root: "off"
+        root: 'off'
       },
       settings: {
         polyfills: [
@@ -141,14 +152,14 @@ module.exports = {
         ]
       },
       rules: {
-        "node/no-unsupported-features/node-builtins": "off"
+        'node/no-unsupported-features/node-builtins': 'off'
       }
     },
     // For extensions, `this` is generally assigned to be the more
     //   descriptive `svgEditor`; they also have no need for importing outside
     //   of SVG-Edit
     {
-      files: ["editor/extensions/**"],
+      files: ['editor/extensions/**'],
       settings: {
         polyfills: [
           'console',
@@ -158,19 +169,19 @@ module.exports = {
         ]
       },
       rules: {
-        "consistent-this": ["error", "svgEditor"],
+        'consistent-this': ['error', 'svgEditor'],
-        "import/no-anonymous-default-export": ["off"]
+        'import/no-anonymous-default-export': ['off']
       }
     },
     {
       // Node files
       files: [
-        "docs/jsdoc-config.js",
+        'docs/jsdoc-config.js',
-        "build/build-html.js",
+        'build/build-html.js',
-        "rollup.config.js", "rollup-config.config.js"
+        'rollup.config.js', 'rollup-config.config.js'
       ],
       env: {
-        node: true,
+        node: true
       },
       settings: {
         polyfills: [
@@ -186,21 +197,21 @@ module.exports = {
         //  and we have too many modules to add to `peerDependencies`
         //  so this rule can know them to be available, so we instead
         //  disable
-        "node/no-unpublished-import": "off"
+        'node/no-unpublished-import': 'off'
       }
     },
     {
       // As consumed by jsdoc, cannot be expressed as ESM
-      files: ["docs/jsdoc-config.js"],
+      files: ['docs/jsdoc-config.js'],
       parserOptions: {
-        sourceType: "script"
+        sourceType: 'script'
       },
       globals: {
-        "module": false
+        module: false
       },
       rules: {
-        "import/no-commonjs": "off",
+        'import/no-commonjs': 'off',
-        "strict": "off"
+        strict: 'off'
       }
     },
     {
@@ -221,8 +232,22 @@ module.exports = {
       }
     },
     {
-      files: ["cypress/**"],
+      files: ['cypress/plugins/index.js'],
-      extends: ["plugin:cypress/recommended"],
+      extends: [
+        'plugin:node/recommended-script'
+      ],
+      rules: {
+        'import/no-commonjs': 0
+      }
+    },
+    {
+      files: ['cypress/**'],
+      extends: [
+        'plugin:cypress/recommended',
+        'plugin:mocha/recommended',
+        'plugin:chai-friendly/recommended',
+        'plugin:chai-expect/recommended'
+      ],
       env: {
         node: true
       },
@@ -239,54 +264,73 @@ module.exports = {
         ]
       },
       rules: {
+        // Would be good but seems necessary due to some bugs in Cypress
+        //  in detecting visibility
+        // 'cypress/no-force': 0,
+        // Good but would be difficult to enforce (and data-* may not be less
+        //   brittle than IDs/classes anyways)
+        // 'cypress/require-data-selectors': 0,
+        'cypress/assertion-before-screenshot': 2,
+
+        // Too oppressive when planning to extend a section
+        'mocha/no-hooks-for-single-case': 0,
+
+        // Would be good to enable but needs some refactoring
+        'mocha/no-setup-in-describe': 0,
+
+        // Useful to ensure allowing `this.timeout()`, etc., but a little oppressive
+        'mocha/no-mocha-arrows': 0,
+        // Useful if enabling the regular `prefer-arrow-callback`
+        // 'mocha/prefer-arrow-callback': 2
+
         'jsdoc/require-jsdoc': 0,
         'no-console': 0,
-        'import/unambiguous': 0,
+        'import/unambiguous': 0
       }
     }
   ],
   rules: {
     // https://github.com/sindresorhus/eslint-plugin-unicorn/issues/453
-    "unicorn/regex-shorthand": 0,
+    'unicorn/regex-shorthand': 0,
     // The Babel transform seems to have a problem converting these
-    "prefer-named-capture-group": "off",
+    'prefer-named-capture-group': 'off',
     // Override these `ash-nazg/sauron` rules which are difficult for us
     //   to apply at this time
-    "unicorn/prefer-string-slice": "off",
+    'unicorn/prefer-string-slice': 'off',
-    "default-case": "off",
+    'default-case': 'off',
-    "require-unicode-regexp": "off",
+    'require-unicode-regexp': 'off',
-    "max-len": ["off", {
+    'max-len': ['off', {
       ignoreUrls: true,
       ignoreRegExpLiterals: true
     }],
-    "unicorn/prefer-query-selector": "off",
+    'unicorn/prefer-query-selector': 'off',
-    "unicorn/prefer-node-append": "off",
+    'unicorn/prefer-node-append': 'off',
-    "unicorn/no-zero-fractions": "off",
+    'unicorn/no-zero-fractions': 'off',
-    "jsdoc/require-file-overview": ["error", {
+    'jsdoc/require-file-overview': ['error', {
       tags: {
         file: {
-          "initialCommentsOnly": true,
+          initialCommentsOnly: true,
-          "preventDuplicates": true,
+          preventDuplicates: true
         },
         license: {
-          "initialCommentsOnly": true,
+          initialCommentsOnly: true,
-          "preventDuplicates": true,
+          preventDuplicates: true
         },
         copyright: {
-          "initialCommentsOnly": true,
+          initialCommentsOnly: true,
-          "preventDuplicates": true,
+          preventDuplicates: true
         },
         author: {
-          "initialCommentsOnly": true,
+          initialCommentsOnly: true,
-          "preventDuplicates": true,
+          preventDuplicates: true
         },
         module: {
-          "initialCommentsOnly": true,
+          initialCommentsOnly: true,
-          "preventDuplicates": true,
+          preventDuplicates: true
         },
         exports: {
-          "initialCommentsOnly": true,
+          initialCommentsOnly: true,
-          "preventDuplicates": true,
+          preventDuplicates: true
         }
       }
     }]

cypress/plugins/index.js

@@ -1,5 +1,4 @@
-/* globals module, require */
+'use strict';
-/* eslint-disable import/no-commonjs */
 
 // ***********************************************************
 // This example plugins/index.js can be used to load plugins
@@ -11,18 +10,7 @@
 // https://on.cypress.io/plugins-guide
 // ***********************************************************
 
-// This function is called when a project is opened or re-opened (e.g. due to
+require('@babel/register')({
-// the project's config changing)
+  plugins: ['@babel/plugin-transform-modules-commonjs']
-
+});
-const codeCoverageTask = require('@cypress/code-coverage/task.js');
+module.exports = require('./main.js').default;
-
-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/plugins/main.js

@@ -0,0 +1,16 @@
+// This function is called when a project is opened or re-opened (e.g. due to
+// the project's config changing)
+
+import codeCoverageTask from '@cypress/code-coverage/task.js';
+
+// eslint-disable-next-line import/no-anonymous-default-export
+export default (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);
+};

package-lock.json

@@ -2130,139 +2130,6 @@
       "integrity": "sha512-KyqT0kkdxgbGys9mvo/1Mgdt/LGvUFPCZIK9pWPIfOM2mYzMDd/eVYy4sMP1YqvVI129k0alxRyM53H2MAs/Nw==",
       "dev": true
     },
-    "@cypress/browserify-preprocessor": {
-      "version": "2.1.1",
-      "resolved": "https://registry.npmjs.org/@cypress/browserify-preprocessor/-/browserify-preprocessor-2.1.1.tgz",
-      "integrity": "sha512-S+0bzZbRsiFbrLkEygu5D0958z4ejio7hWxnO5MoSqD7SmZOmGRpjuZ9RaGcDmL6RWnklNjn8DkpP2s368qCKA==",
-      "dev": true,
-      "requires": {
-        "@babel/core": "7.4.5",
-        "@babel/plugin-proposal-class-properties": "7.3.0",
-        "@babel/plugin-proposal-object-rest-spread": "7.3.2",
-        "@babel/plugin-transform-runtime": "7.2.0",
-        "@babel/preset-env": "7.4.5",
-        "@babel/preset-react": "7.0.0",
-        "@babel/runtime": "7.3.1",
-        "babel-plugin-add-module-exports": "1.0.0",
-        "babelify": "10.0.0",
-        "bluebird": "3.5.3",
-        "browserify": "16.2.3",
-        "coffeeify": "3.0.1",
-        "coffeescript": "1.12.7",
-        "debug": "4.1.1",
-        "fs-extra": "7.0.1",
-        "lodash.clonedeep": "4.5.0",
-        "watchify": "3.11.1"
-      },
-      "dependencies": {
-        "@babel/core": {
-          "version": "7.4.5",
-          "resolved": "https://registry.npmjs.org/@babel/core/-/core-7.4.5.tgz",
-          "integrity": "sha512-OvjIh6aqXtlsA8ujtGKfC7LYWksYSX8yQcM8Ay3LuvVeQ63lcOKgoZWVqcpFwkd29aYU9rVx7jxhfhiEDV9MZA==",
-          "dev": true,
-          "requires": {
-            "@babel/code-frame": "^7.0.0",
-            "@babel/generator": "^7.4.4",
-            "@babel/helpers": "^7.4.4",
-            "@babel/parser": "^7.4.5",
-            "@babel/template": "^7.4.4",
-            "@babel/traverse": "^7.4.5",
-            "@babel/types": "^7.4.4",
-            "convert-source-map": "^1.1.0",
-            "debug": "^4.1.0",
-            "json5": "^2.1.0",
-            "lodash": "^4.17.11",
-            "resolve": "^1.3.2",
-            "semver": "^5.4.1",
-            "source-map": "^0.5.0"
-          }
-        },
-        "@babel/plugin-proposal-object-rest-spread": {
-          "version": "7.3.2",
-          "resolved": "https://registry.npmjs.org/@babel/plugin-proposal-object-rest-spread/-/plugin-proposal-object-rest-spread-7.3.2.tgz",
-          "integrity": "sha512-DjeMS+J2+lpANkYLLO+m6GjoTMygYglKmRe6cDTbFv3L9i6mmiE8fe6B8MtCSLZpVXscD5kn7s6SgtHrDoBWoA==",
-          "dev": true,
-          "requires": {
-            "@babel/helper-plugin-utils": "^7.0.0",
-            "@babel/plugin-syntax-object-rest-spread": "^7.2.0"
-          }
-        },
-        "@babel/preset-env": {
-          "version": "7.4.5",
-          "resolved": "https://registry.npmjs.org/@babel/preset-env/-/preset-env-7.4.5.tgz",
-          "integrity": "sha512-f2yNVXM+FsR5V8UwcFeIHzHWgnhXg3NpRmy0ADvALpnhB0SLbCvrCRr4BLOUYbQNLS+Z0Yer46x9dJXpXewI7w==",
-          "dev": true,
-          "requires": {
-            "@babel/helper-module-imports": "^7.0.0",
-            "@babel/helper-plugin-utils": "^7.0.0",
-            "@babel/plugin-proposal-async-generator-functions": "^7.2.0",
-            "@babel/plugin-proposal-json-strings": "^7.2.0",
-            "@babel/plugin-proposal-object-rest-spread": "^7.4.4",
-            "@babel/plugin-proposal-optional-catch-binding": "^7.2.0",
-            "@babel/plugin-proposal-unicode-property-regex": "^7.4.4",
-            "@babel/plugin-syntax-async-generators": "^7.2.0",
-            "@babel/plugin-syntax-json-strings": "^7.2.0",
-            "@babel/plugin-syntax-object-rest-spread": "^7.2.0",
-            "@babel/plugin-syntax-optional-catch-binding": "^7.2.0",
-            "@babel/plugin-transform-arrow-functions": "^7.2.0",
-            "@babel/plugin-transform-async-to-generator": "^7.4.4",
-            "@babel/plugin-transform-block-scoped-functions": "^7.2.0",
-            "@babel/plugin-transform-block-scoping": "^7.4.4",
-            "@babel/plugin-transform-classes": "^7.4.4",
-            "@babel/plugin-transform-computed-properties": "^7.2.0",
-            "@babel/plugin-transform-destructuring": "^7.4.4",
-            "@babel/plugin-transform-dotall-regex": "^7.4.4",
-            "@babel/plugin-transform-duplicate-keys": "^7.2.0",
-            "@babel/plugin-transform-exponentiation-operator": "^7.2.0",
-            "@babel/plugin-transform-for-of": "^7.4.4",
-            "@babel/plugin-transform-function-name": "^7.4.4",
-            "@babel/plugin-transform-literals": "^7.2.0",
-            "@babel/plugin-transform-member-expression-literals": "^7.2.0",
-            "@babel/plugin-transform-modules-amd": "^7.2.0",
-            "@babel/plugin-transform-modules-commonjs": "^7.4.4",
-            "@babel/plugin-transform-modules-systemjs": "^7.4.4",
-            "@babel/plugin-transform-modules-umd": "^7.2.0",
-            "@babel/plugin-transform-named-capturing-groups-regex": "^7.4.5",
-            "@babel/plugin-transform-new-target": "^7.4.4",
-            "@babel/plugin-transform-object-super": "^7.2.0",
-            "@babel/plugin-transform-parameters": "^7.4.4",
-            "@babel/plugin-transform-property-literals": "^7.2.0",
-            "@babel/plugin-transform-regenerator": "^7.4.5",
-            "@babel/plugin-transform-reserved-words": "^7.2.0",
-            "@babel/plugin-transform-shorthand-properties": "^7.2.0",
-            "@babel/plugin-transform-spread": "^7.2.0",
-            "@babel/plugin-transform-sticky-regex": "^7.2.0",
-            "@babel/plugin-transform-template-literals": "^7.4.4",
-            "@babel/plugin-transform-typeof-symbol": "^7.2.0",
-            "@babel/plugin-transform-unicode-regex": "^7.4.4",
-            "@babel/types": "^7.4.4",
-            "browserslist": "^4.6.0",
-            "core-js-compat": "^3.1.1",
-            "invariant": "^2.2.2",
-            "js-levenshtein": "^1.1.3",
-            "semver": "^5.5.0"
-          },
-          "dependencies": {
-            "@babel/plugin-proposal-object-rest-spread": {
-              "version": "7.7.7",
-              "resolved": "https://registry.npmjs.org/@babel/plugin-proposal-object-rest-spread/-/plugin-proposal-object-rest-spread-7.7.7.tgz",
-              "integrity": "sha512-3qp9I8lelgzNedI3hrhkvhaEYree6+WHnyA/q4Dza9z7iEIs1eyhWyJnetk3jJ69RT0AT4G0UhEGwyGFJ7GUuQ==",
-              "dev": true,
-              "requires": {
-                "@babel/helper-plugin-utils": "^7.0.0",
-                "@babel/plugin-syntax-object-rest-spread": "^7.7.4"
-              }
-            }
-          }
-        },
-        "coffeescript": {
-          "version": "1.12.7",
-          "resolved": "https://registry.npmjs.org/coffeescript/-/coffeescript-1.12.7.tgz",
-          "integrity": "sha512-pLXHFxQMPklVoEekowk8b3erNynC+DVJzChxS/LCBBgR6/8AJkHivkm//zbowcfc7BTCAjryuhx6gPqPRfsFoA==",
-          "dev": true
-        }
-      }
-    },
     "@cypress/code-coverage": {
       "version": "1.12.1",
       "resolved": "https://registry.npmjs.org/@cypress/code-coverage/-/code-coverage-1.12.1.tgz",
@@ -2436,6 +2303,165 @@
         "debug": "4.1.1",
         "safe-marked": "2.0.0",
         "temp-write": "4.0.0"
+      },
+      "dependencies": {
+        "@babel/core": {
+          "version": "7.4.5",
+          "resolved": "https://registry.npmjs.org/@babel/core/-/core-7.4.5.tgz",
+          "integrity": "sha512-OvjIh6aqXtlsA8ujtGKfC7LYWksYSX8yQcM8Ay3LuvVeQ63lcOKgoZWVqcpFwkd29aYU9rVx7jxhfhiEDV9MZA==",
+          "dev": true,
+          "requires": {
+            "@babel/code-frame": "^7.0.0",
+            "@babel/generator": "^7.4.4",
+            "@babel/helpers": "^7.4.4",
+            "@babel/parser": "^7.4.5",
+            "@babel/template": "^7.4.4",
+            "@babel/traverse": "^7.4.5",
+            "@babel/types": "^7.4.4",
+            "convert-source-map": "^1.1.0",
+            "debug": "^4.1.0",
+            "json5": "^2.1.0",
+            "lodash": "^4.17.11",
+            "resolve": "^1.3.2",
+            "semver": "^5.4.1",
+            "source-map": "^0.5.0"
+          }
+        },
+        "@babel/plugin-proposal-object-rest-spread": {
+          "version": "7.3.2",
+          "resolved": "https://registry.npmjs.org/@babel/plugin-proposal-object-rest-spread/-/plugin-proposal-object-rest-spread-7.3.2.tgz",
+          "integrity": "sha512-DjeMS+J2+lpANkYLLO+m6GjoTMygYglKmRe6cDTbFv3L9i6mmiE8fe6B8MtCSLZpVXscD5kn7s6SgtHrDoBWoA==",
+          "dev": true,
+          "requires": {
+            "@babel/helper-plugin-utils": "^7.0.0",
+            "@babel/plugin-syntax-object-rest-spread": "^7.2.0"
+          }
+        },
+        "@babel/preset-env": {
+          "version": "7.4.5",
+          "resolved": "https://registry.npmjs.org/@babel/preset-env/-/preset-env-7.4.5.tgz",
+          "integrity": "sha512-f2yNVXM+FsR5V8UwcFeIHzHWgnhXg3NpRmy0ADvALpnhB0SLbCvrCRr4BLOUYbQNLS+Z0Yer46x9dJXpXewI7w==",
+          "dev": true,
+          "requires": {
+            "@babel/helper-module-imports": "^7.0.0",
+            "@babel/helper-plugin-utils": "^7.0.0",
+            "@babel/plugin-proposal-async-generator-functions": "^7.2.0",
+            "@babel/plugin-proposal-json-strings": "^7.2.0",
+            "@babel/plugin-proposal-object-rest-spread": "^7.4.4",
+            "@babel/plugin-proposal-optional-catch-binding": "^7.2.0",
+            "@babel/plugin-proposal-unicode-property-regex": "^7.4.4",
+            "@babel/plugin-syntax-async-generators": "^7.2.0",
+            "@babel/plugin-syntax-json-strings": "^7.2.0",
+            "@babel/plugin-syntax-object-rest-spread": "^7.2.0",
+            "@babel/plugin-syntax-optional-catch-binding": "^7.2.0",
+            "@babel/plugin-transform-arrow-functions": "^7.2.0",
+            "@babel/plugin-transform-async-to-generator": "^7.4.4",
+            "@babel/plugin-transform-block-scoped-functions": "^7.2.0",
+            "@babel/plugin-transform-block-scoping": "^7.4.4",
+            "@babel/plugin-transform-classes": "^7.4.4",
+            "@babel/plugin-transform-computed-properties": "^7.2.0",
+            "@babel/plugin-transform-destructuring": "^7.4.4",
+            "@babel/plugin-transform-dotall-regex": "^7.4.4",
+            "@babel/plugin-transform-duplicate-keys": "^7.2.0",
+            "@babel/plugin-transform-exponentiation-operator": "^7.2.0",
+            "@babel/plugin-transform-for-of": "^7.4.4",
+            "@babel/plugin-transform-function-name": "^7.4.4",
+            "@babel/plugin-transform-literals": "^7.2.0",
+            "@babel/plugin-transform-member-expression-literals": "^7.2.0",
+            "@babel/plugin-transform-modules-amd": "^7.2.0",
+            "@babel/plugin-transform-modules-commonjs": "^7.4.4",
+            "@babel/plugin-transform-modules-systemjs": "^7.4.4",
+            "@babel/plugin-transform-modules-umd": "^7.2.0",
+            "@babel/plugin-transform-named-capturing-groups-regex": "^7.4.5",
+            "@babel/plugin-transform-new-target": "^7.4.4",
+            "@babel/plugin-transform-object-super": "^7.2.0",
+            "@babel/plugin-transform-parameters": "^7.4.4",
+            "@babel/plugin-transform-property-literals": "^7.2.0",
+            "@babel/plugin-transform-regenerator": "^7.4.5",
+            "@babel/plugin-transform-reserved-words": "^7.2.0",
+            "@babel/plugin-transform-shorthand-properties": "^7.2.0",
+            "@babel/plugin-transform-spread": "^7.2.0",
+            "@babel/plugin-transform-sticky-regex": "^7.2.0",
+            "@babel/plugin-transform-template-literals": "^7.4.4",
+            "@babel/plugin-transform-typeof-symbol": "^7.2.0",
+            "@babel/plugin-transform-unicode-regex": "^7.4.4",
+            "@babel/types": "^7.4.4",
+            "browserslist": "^4.6.0",
+            "core-js-compat": "^3.1.1",
+            "invariant": "^2.2.2",
+            "js-levenshtein": "^1.1.3",
+            "semver": "^5.5.0"
+          },
+          "dependencies": {
+            "@babel/plugin-proposal-object-rest-spread": {
+              "version": "7.8.3",
+              "resolved": "https://registry.npmjs.org/@babel/plugin-proposal-object-rest-spread/-/plugin-proposal-object-rest-spread-7.8.3.tgz",
+              "integrity": "sha512-8qvuPwU/xxUCt78HocNlv0mXXo0wdh9VT1R04WU8HGOfaOob26pF+9P5/lYjN/q7DHOX1bvX60hnhOvuQUJdbA==",
+              "dev": true,
+              "requires": {
+                "@babel/helper-plugin-utils": "^7.8.3",
+                "@babel/plugin-syntax-object-rest-spread": "^7.8.0"
+              },
+              "dependencies": {
+                "@babel/helper-plugin-utils": {
+                  "version": "7.8.3",
+                  "resolved": "https://registry.npmjs.org/@babel/helper-plugin-utils/-/helper-plugin-utils-7.8.3.tgz",
+                  "integrity": "sha512-j+fq49Xds2smCUNYmEHF9kGNkhbet6yVIBp4e6oeQpH1RUs/Ir06xUKzDjDkGcaaokPiTNs2JBWHjaE4csUkZQ==",
+                  "dev": true
+                },
+                "@babel/plugin-syntax-object-rest-spread": {
+                  "version": "7.8.3",
+                  "resolved": "https://registry.npmjs.org/@babel/plugin-syntax-object-rest-spread/-/plugin-syntax-object-rest-spread-7.8.3.tgz",
+                  "integrity": "sha512-XoqMijGZb9y3y2XskN+P1wUGiVwWZ5JmoDRwx5+3GmEplNyVM2s2Dg8ILFQm8rWM48orGy5YpI5Bl8U1y7ydlA==",
+                  "dev": true,
+                  "requires": {
+                    "@babel/helper-plugin-utils": "^7.8.0"
+                  }
+                }
+              }
+            }
+          }
+        },
+        "@cypress/browserify-preprocessor": {
+          "version": "2.1.1",
+          "resolved": "https://registry.npmjs.org/@cypress/browserify-preprocessor/-/browserify-preprocessor-2.1.1.tgz",
+          "integrity": "sha512-S+0bzZbRsiFbrLkEygu5D0958z4ejio7hWxnO5MoSqD7SmZOmGRpjuZ9RaGcDmL6RWnklNjn8DkpP2s368qCKA==",
+          "dev": true,
+          "requires": {
+            "@babel/core": "7.4.5",
+            "@babel/plugin-proposal-class-properties": "7.3.0",
+            "@babel/plugin-proposal-object-rest-spread": "7.3.2",
+            "@babel/plugin-transform-runtime": "7.2.0",
+            "@babel/preset-env": "7.4.5",
+            "@babel/preset-react": "7.0.0",
+            "@babel/runtime": "7.3.1",
+            "babel-plugin-add-module-exports": "1.0.0",
+            "babelify": "10.0.0",
+            "bluebird": "3.5.3",
+            "browserify": "16.2.3",
+            "coffeeify": "3.0.1",
+            "coffeescript": "1.12.7",
+            "debug": "4.1.1",
+            "fs-extra": "7.0.1",
+            "lodash.clonedeep": "4.5.0",
+            "watchify": "3.11.1"
+          }
+        },
+        "babel-plugin-add-module-exports": {
+          "version": "1.0.0",
+          "resolved": "https://registry.npmjs.org/babel-plugin-add-module-exports/-/babel-plugin-add-module-exports-1.0.0.tgz",
+          "integrity": "sha512-m0sMxPL4FaN2K69GQgaRJa4Ny15qKSdoknIcpN+gz+NaJlAW9pge/povs13tPYsKDboflrEQC+/3kfIsONBTaw==",
+          "dev": true,
+          "requires": {
+            "chokidar": "^2.0.4"
+          }
+        },
+        "coffeescript": {
+          "version": "1.12.7",
+          "resolved": "https://registry.npmjs.org/coffeescript/-/coffeescript-1.12.7.tgz",
+          "integrity": "sha512-pLXHFxQMPklVoEekowk8b3erNynC+DVJzChxS/LCBBgR6/8AJkHivkm//zbowcfc7BTCAjryuhx6gPqPRfsFoA==",
+          "dev": true
+        }
       }
     },
     "@cypress/listr-verbose-renderer": {
@@ -3246,15 +3272,6 @@
       "integrity": "sha512-wJqOIreoFiGjvZ1UZvGLAUs8H3QQ3cS833+6ctFcCdr/xFd5oB66mmwGWnwQlBXFFaefRt+KR+m2dY9em2RxVg==",
       "dev": true
     },
-    "babel-plugin-add-module-exports": {
-      "version": "1.0.0",
-      "resolved": "https://registry.npmjs.org/babel-plugin-add-module-exports/-/babel-plugin-add-module-exports-1.0.0.tgz",
-      "integrity": "sha512-m0sMxPL4FaN2K69GQgaRJa4Ny15qKSdoknIcpN+gz+NaJlAW9pge/povs13tPYsKDboflrEQC+/3kfIsONBTaw==",
-      "dev": true,
-      "requires": {
-        "chokidar": "^2.0.4"
-      }
-    },
     "babel-plugin-dynamic-import-node": {
       "version": "2.3.0",
       "resolved": "https://registry.npmjs.org/babel-plugin-dynamic-import-node/-/babel-plugin-dynamic-import-node-2.3.0.tgz",
@@ -5953,6 +5970,18 @@
       "integrity": "sha512-uRfJ4d9Fyyvxm6/w++++RSQoXZyERFF0+6zqupgg5Mw/+eG4y19yrptTghJlApntKlPZBpA4XCOIBzJbvLrArQ==",
       "dev": true
     },
+    "eslint-plugin-chai-expect": {
+      "version": "2.1.0",
+      "resolved": "https://registry.npmjs.org/eslint-plugin-chai-expect/-/eslint-plugin-chai-expect-2.1.0.tgz",
+      "integrity": "sha512-rd0/4mjMV6c3i0o4DKkWI4uaFN9DK707kW+/fDphaDI6HVgxXnhML9Xgt5vHnTXmSSnDhupuCFBgsEAEpchXmQ==",
+      "dev": true
+    },
+    "eslint-plugin-chai-friendly": {
+      "version": "0.5.0",
+      "resolved": "https://registry.npmjs.org/eslint-plugin-chai-friendly/-/eslint-plugin-chai-friendly-0.5.0.tgz",
+      "integrity": "sha512-Pxe6z8C9fP0pn2X2nGFU/b3GBOCM/5FVus1hsMwJsXP3R7RiXFl7g0ksJbsc0GxiLyidTW4mEFk77qsNn7Tk7g==",
+      "dev": true
+    },
     "eslint-plugin-compat": {
       "version": "3.5.1",
       "resolved": "https://registry.npmjs.org/eslint-plugin-compat/-/eslint-plugin-compat-3.5.1.tgz",
@@ -5992,9 +6021,9 @@
       }
     },
     "eslint-plugin-cypress": {
-      "version": "2.9.0",
+      "version": "2.10.3",
-      "resolved": "https://registry.npmjs.org/eslint-plugin-cypress/-/eslint-plugin-cypress-2.9.0.tgz",
+      "resolved": "https://registry.npmjs.org/eslint-plugin-cypress/-/eslint-plugin-cypress-2.10.3.tgz",
-      "integrity": "sha512-3x6EQYDB30VHyqFV6leBRf9Zo51FsPWXG+aLtpUSlRtcLGcrbmnfno02E318YYSmGbCJH6K5i+MLCFHBpcyreg==",
+      "integrity": "sha512-CvFeoCquShfO8gHNIKA1VpUTz78WtknMebLemBd1lRbcmJNjwpqCqpQYUG/XVja8GjdX/e2TJXYa+EUBxehtUg==",
       "dev": true,
       "requires": {
         "globals": "^11.12.0"
@@ -6124,6 +6153,33 @@
         "unified": "^6.1.2"
       }
     },
+    "eslint-plugin-mocha": {
+      "version": "6.3.0",
+      "resolved": "https://registry.npmjs.org/eslint-plugin-mocha/-/eslint-plugin-mocha-6.3.0.tgz",
+      "integrity": "sha512-Cd2roo8caAyG21oKaaNTj7cqeYRWW1I2B5SfpKRp0Ip1gkfwoR1Ow0IGlPWnNjzywdF4n+kHL8/9vM6zCJUxdg==",
+      "dev": true,
+      "requires": {
+        "eslint-utils": "^2.0.0",
+        "ramda": "^0.27.0"
+      },
+      "dependencies": {
+        "eslint-utils": {
+          "version": "2.0.0",
+          "resolved": "https://registry.npmjs.org/eslint-utils/-/eslint-utils-2.0.0.tgz",
+          "integrity": "sha512-0HCPuJv+7Wv1bACm8y5/ECVfYdfsAm9xmVb7saeFlxjPYALefjhbYoCkBjPdPzGH8wWyTpAez82Fh3VKYEZ8OA==",
+          "dev": true,
+          "requires": {
+            "eslint-visitor-keys": "^1.1.0"
+          }
+        },
+        "ramda": {
+          "version": "0.27.0",
+          "resolved": "https://registry.npmjs.org/ramda/-/ramda-0.27.0.tgz",
+          "integrity": "sha512-pVzZdDpWwWqEVVLshWUHjNwuVP7SfcmPraYuqocJp1yo2U1R7P+5QAfDhdItkuoGqIBnBYrtPp7rEPqDn9HlZA==",
+          "dev": true
+        }
+      }
+    },
     "eslint-plugin-no-unsanitized": {
       "version": "3.0.2",
       "resolved": "https://registry.npmjs.org/eslint-plugin-no-unsanitized/-/eslint-plugin-no-unsanitized-3.0.2.tgz",

package.json

@@ -14,20 +14,16 @@
   },
   "scripts": {
     "add-release": "git submodule add -b \"release-v$VERSION\" https://github.com/SVG-Edit/svgedit.git \"releases/svg-edit-$VERSION\" && git submodule set-branch -b \"release-v$VERSION\" releases/latest",
-
     "start-allow-origin": "static -p 8001 -H '{\"Access-Control-Allow-Origin\": \"*\"}'",
     "start-embedded": "run-p start start-allow-origin",
     "start": "echo \"Open file, e.g., to http://localhost:8000/editor/svg-editor-es.html\" && static -p 8000",
-
     "open-docs-no-start": "open-cli http://localhost:8000/docs/jsdoc/",
     "open-docs": "run-p start open-docs-no-start",
-
     "build-docs-remove": "rimraf \"docs/jsdoc/*\"",
     "build-docs-create": "jsdoc --pedantic -c docs/jsdoc-config.js editor",
     "build-docs": "run-s -c build-docs-remove build-docs-create",
     "build-and-open-docs-no-start": "run-s build-docs open-docs-no-start",
     "build-and-open-docs": "run-s build-docs open-docs",
-
     "open-embedded-no-start": "open-cli http://localhost:8000/editor/embedapi.html",
     "open-embedded": "run-p start-embedded open-embedded-no-start",
     "open-all-ext-no-start": "open-cli http://localhost:8000/editor/svg-editor-es.html?extensions=ext-arrows.js,ext-closepath.js,ext-foreignobject.js,ext-helloworld.js,ext-mathjax.js,ext-php_savefile.js,ext-server_moinsave.js,ext-server_opensave.js,ext-webappfind.js,ext-xdomain-messaging.js",
@@ -36,48 +32,38 @@
     "open-compiled": "run-p start open-compiled-no-start",
     "open-no-start": "open-cli http://localhost:8000/editor/svg-editor-es.html",
     "open": "run-p start open-no-start",
-
     "open-cov-no-start": "open-cli http://localhost:8000/coverage/",
     "open-cov": "run-p start open-cov-no-start",
-
     "instrument:replace-html": "frs-replace \"../svgedit-config-es.js\" \"svgedit-config-es.js\" -i instrumented/svg-editor-es.html -o instrumented/svg-editor-es.html",
     "instrument:replace-js": "frs-replace \"editor/svg-editor.js\" \"svg-editor.js\" -i svgedit-config-es.js -o instrumented/svgedit-config-es.js",
     "instrument:copy-excluded": "node cypress/support/copy.js",
     "copy-instrumented": "copyfiles -e \"**/*.js\" -u 1 \"editor/**/*\" instrumented && npm run instrument:replace-html && npm run instrument:replace-js && npm run instrument:copy-excluded",
     "instrument": "rimraf instrumented && nyc instrument editor instrumented && npm run copy-instrumented",
-
     "report": "nyc report",
     "report-summary": "nyc report --reporter=text-summary",
-
     "license-badge": "license-badger --uncategorizedLicenseTemplate \"\\${license} (\\${name} (\\${version}))\" --filteredTypes=nonempty --textTemplate \"License types\n(project, deps, and bundled devDeps)\" --packageJson --production badges/licenses-badge.svg",
     "license-badge-dev": "license-badger --corrections --filteredTypes=nonempty --textTemplate \"License types\n(all devDeps)\" --allDevelopment badges/licenses-badge-dev.svg",
     "license-badges": "run-p license-badge license-badge-dev",
     "coverage-badge": "coveradge badges/coverage-badge",
-
     "compress-images": "imageoptim \"editor/extensions/*.png\" \"editor/spinbtn/*.png\" \"editor/jgraduate/images/*.{png,gif}\" \"editor/images/*.png\"",
     "copy": "copyfiles -f node_modules/load-stylesheets/dist/index-es.js editor/external/load-stylesheets && copyfiles -f node_modules/jamilih/dist/jml-es.js editor/external/jamilih && copyfiles -f node_modules/query-result/esm/index.js editor/external/query-result/esm && copyfiles -f node_modules/qr-manipulation/dist/index-es.js editor/external/qr-manipulation/dist && copyfiles -f node_modules/stackblur-canvas/dist/stackblur-es.js editor/external/stackblur-canvas/dist && copyfiles -f node_modules/regenerator-runtime/runtime.js editor/external/regenerator-runtime && copyfiles -f \"node_modules/core-js-bundle//minified*\" editor/external/core-js-bundle && copyfiles -f \"node_modules/underscore/underscore-*\" editor/jspdf && copyfiles -f \"node_modules/deparam/dist/deparam.esm.js\" editor/external/deparam",
     "remark": "remark -q -f .",
-
     "build-html": "babel-node --plugins @babel/plugin-transform-modules-commonjs build/build-html.js",
     "eslint-fix": "eslint --fix --ext js,md,html .",
     "eslint": "eslint --ext js,md,html .",
     "rollup": "rollup -c",
-
     "build-by-config": "rollup -c rollup-config.config.js",
     "prep-no-core-rollup": "run-s eslint build-html build-by-config",
     "prep": "run-s prep-no-core-rollup rollup",
     "prepublishOnly": "npm run prep",
-
     "cypress:open-no-start": "cypress open",
     "cypress:open": "run-p start cypress:open-no-start",
     "open-tests": "run-s instrument cypress:open",
-
     "cypress:merge": "mochawesome-merge \"cypress/results/mochaw*.json\" > mochawesome.json && marge mochawesome.json && mbg --file ./mochawesome.json --badge_output badges/tests-badge.svg",
     "cypress:run-only": "rimraf \"cypress/results/mochaw*.json\" && rimraf \".nyc_output/*\" && cypress run",
     "cypress:run-no-badge": "run-s -c cypress:run-only cypress:merge",
     "cypress:run": "run-s -c cypress:run-no-badge coverage-badge",
     "test-only-no-report": "run-p start cypress:run",
-
     "test-only": "run-s -c test-only-no-report report",
     "test-no-cov-no-core-rollup": "run-s prep-no-core-rollup test-only",
     "test-no-cov": "run-s prep test-only",
@@ -150,6 +136,7 @@
     "@babel/plugin-transform-modules-commonjs": "^7.8.3",
     "@babel/plugin-transform-named-capturing-groups-regex": "^7.8.3",
     "@babel/preset-env": "^7.8.4",
+    "@babel/register": "^7.8.3",
     "@cypress/code-coverage": "^1.12.1",
     "@cypress/fiddle": "^1.4.0",
     "@mysticatea/eslint-plugin": "^13.0.0",
@@ -167,13 +154,16 @@
     "eslint-config-ash-nazg": "^17.2.0",
     "eslint-config-standard": "^14.1.0",
     "eslint-plugin-array-func": "^3.1.3",
+    "eslint-plugin-chai-expect": "^2.1.0",
+    "eslint-plugin-chai-friendly": "^0.5.0",
     "eslint-plugin-compat": "^3.5.1",
-    "eslint-plugin-cypress": "^2.9.0",
+    "eslint-plugin-cypress": "^2.10.3",
     "eslint-plugin-eslint-comments": "^3.1.2",
     "eslint-plugin-html": "^6.0.0",
     "eslint-plugin-import": "^2.20.1",
     "eslint-plugin-jsdoc": "^21.0.0",
     "eslint-plugin-markdown": "^1.0.1",
+    "eslint-plugin-mocha": "^6.3.0",
     "eslint-plugin-no-unsanitized": "^3.0.2",
     "eslint-plugin-no-use-extend-native": "^0.4.1",
     "eslint-plugin-node": "^11.0.0",