E2e testing

.eslintrc.js

@@ -0,0 +1,36 @@
+module.exports = {
+  env: {
+    browser: true,
+    es2021: true,
+    'cypress/globals': true
+  },
+  extends: [
+    'plugin:cypress/recommended'
+  ],
+  overrides: [
+  ],
+  parserOptions: {
+    ecmaVersion: 'latest'
+  },
+  plugins: [
+    'cypress'
+  ],
+  rules: {
+    semi: ['error', 'always'],
+    'space-before-function-paren': 'off',
+    'cypress/no-assigning-return-values': 'error',
+    'cypress/no-unnecessary-waiting': 'error',
+    'cypress/assertion-before-screenshot': 'warn',
+    'cypress/no-force': 'warn',
+    'cypress/no-async-tests': 'error',
+    'cypress/no-pause': 'error',
+    'max-len': ['error', 80, {
+      ignoreTemplateLiterals: true,
+      ignoreRegExpLiterals: true,
+      ignoreComments: true
+    }],
+    'arrow-parens': ['error', 'always'],
+    quotes: ['error', 'single', { allowTemplateLiterals: true }],
+    'no-console': ['error']
+  }
+};

.github/workflows/test.yml

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+name: Test
+
+on:
+  pull_request:
+    branches: [ next ]
+
+jobs:
+  build:
+
+    runs-on: ubuntu-latest
+
+    strategy:
+      matrix:
+        node-version: [20.x]
+
+    steps:
+    - uses: actions/checkout@v2
+    - name: Use Node.js ${{ matrix.node-version }}
+      uses: actions/setup-node@v1
+      with:
+        node-version: ${{ matrix.node-version }}
+    - run: npm install --legacy-peer-deps
+    - run: |
+        npm run dev &
+        npm run test-e2e

.husky/pre-commit

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+#!/bin/sh
+  . "$(dirname "$0")/_/husky.sh"
+
+  npx lint-staged