feat(mocks-in-e2e-tests): example app with various e2e test approach

Author: Kamil Gajowy

articles/mocks-in-e2e-tests/.eslintrc.js

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+module.exports = {
+  parser: '@typescript-eslint/parser',
+  parserOptions: {
+    project: 'tsconfig.json',
+    sourceType: 'module',
+  },
+  plugins: ['@typescript-eslint/eslint-plugin'],
+  extends: [
+    'plugin:@typescript-eslint/recommended',
+    'plugin:prettier/recommended',
+  ],
+  root: true,
+  env: {
+    node: true,
+    jest: true,
+  },
+  ignorePatterns: ['.eslintrc.js'],
+  rules: {
+    '@typescript-eslint/interface-name-prefix': 'off',
+    '@typescript-eslint/explicit-function-return-type': 'off',
+    '@typescript-eslint/explicit-module-boundary-types': 'off',
+    '@typescript-eslint/no-explicit-any': 'off',
+  },
+};

articles/mocks-in-e2e-tests/.gitignore

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+# compiled output
+/dist
+/node_modules
+
+# Logs
+logs
+*.log
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+lerna-debug.log*
+
+# OS
+.DS_Store
+
+# Tests
+/coverage
+/.nyc_output
+
+# IDEs and editors
+/.idea
+.project
+.classpath
+.c9/
+*.launch
+.settings/
+*.sublime-workspace
+
+# IDE - VSCode
+.vscode/*
+!.vscode/settings.json
+!.vscode/tasks.json
+!.vscode/launch.json
+!.vscode/extensions.json

articles/mocks-in-e2e-tests/.prettierrc

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+{
+  "singleQuote": true,
+  "trailingComma": "all"
+}

articles/mocks-in-e2e-tests/README.md

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+<p align="center">
+    <a href="https://www.angular.love/" target="_blank"><img src="https://www.angular.love/wp-content/uploads/2020/07/logo-angular.png" alt="angular love"/></a>
+</p>
+
+# Mocks in E2E tests
+
+## Running
+
+`npm run test:e2e` to run tests
+
+## src/orders
+
+Application code. Contains minimum functionality which connects to external service to fetch data via HTTP request.
+
+## test/payment-gateway-fake
+
+Imitation of third-party service which behaves as external service. Used within e2e tests of `src/orders` feature.
+
+## test
+
+`order-base-example-without-mock` contains skipped tests, as those do not mock anything under the hood. Treat is as an
+example of test base which is modified to present different approaches.

articles/mocks-in-e2e-tests/nest-cli.json

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+{
+  "collection": "@nestjs/schematics",
+  "sourceRoot": "src"
+}