test: add unit tests

.gitignore

@@ -2,39 +2,15 @@
 logs
 *.log
 npm-debug.log*
-yarn-debug.log*
-yarn-error.log*
-
-# Runtime data
-pids
-*.pid
-*.seed
-*.pid.lock
-
-# Directory for instrumented libs generated by jscoverage/JSCover
-lib-cov
 
 # Coverage directory used by tools like istanbul
 coverage
 
-# nyc test coverage
-.nyc_output
-
-# Grunt intermediate storage (http://gruntjs.com/creating-plugins#storing-task-files)
-.grunt
-
-# Bower dependency directory (https://bower.io/)
-bower_components
-
-# node-waf configuration
-.lock-wscript
-
 # Compiled binary addons (https://nodejs.org/api/addons.html)
 build/Release
 
 # Dependency directories
 node_modules/
-jspm_packages/
 
 # Babel compiled directory
 lib
@@ -54,23 +30,12 @@ typings/
 # Output of 'npm pack'
 *.tgz
 
-# Yarn Integrity file
-.yarn-integrity
-
 # dotenv environment variables file
 .env
 
-# parcel-bundler cache (https://parceljs.org/)
-.cache
-
-# next.js build output
-.next
-
-# nuxt.js build output
-.nuxt
-
 # vuepress build output
 docs/.vuepress/dist
 
-# Serverless directories
-.serverless
+# Test Artifacts
+dest-path
+test-dir

__e2e__/commands/generate.test.js

@@ -1,8 +1,5 @@
-import {
-  runPromptWithAnswers,
-  rmTempDir,
-  fetchProjectConfig,
-} from '../../jest/helpers';
+import { runPromptWithAnswers, rmTempDir } from '../../jest/helpers';
+import { fetchProjectConfig } from '../../src/utils/helpers';
 
 import { DOWN, ENTER } from 'cli-prompts-test';
 import fs from 'fs';

__e2e__/commands/init.test.js

@@ -1,11 +1,7 @@
 'use strict';
 
-import {
-  run,
-  rmTempDir,
-  runPromptWithAnswers,
-  fetchProjectConfig,
-} from '../../jest/helpers';
+import { run, rmTempDir, runPromptWithAnswers } from '../../jest/helpers';
+import { fetchProjectConfig } from '../../src/utils/helpers';
 
 import { DOWN, ENTER } from 'cli-prompts-test';
 import fs from 'fs';

babel.config.js

@@ -1,3 +1,4 @@
 module.exports = {
   presets: [['@babel/preset-env']],
+  ignore: ['src/templates'],
 };

gulpfile.js

@@ -1,21 +1,19 @@
-const gulp = require('gulp');
 const del = require('del');
+const execa = require('execa');
+const gulp = require('gulp');
 
-gulp.task('clean', () => del('lib/**', { force: true }));
+gulp.task('clean', () => del('lib/**'));
 
-gulp.task('copy server templates', () =>
-  gulp
-    .src('./src/templates/server/**/*')
-    .pipe(gulp.dest('./lib/templates/server')),
-);
+gulp.task('build', async () => {
+  const {
+    exitCode,
+  } = await execa.command(
+    'babel src --out-dir lib --copy-files --include-dotfiles',
+    { stdio: 'inherit' },
+  );
+  console.log(`The process exited with code ${exitCode}`);
+});
 
-gulp.task('copy starter templates', () =>
-  gulp
-    .src('./src/templates/starter-templates/**/*')
-    .pipe(gulp.dest('./lib/templates/starter-templates')),
-);
+gulp.task('cleanup', () => del('lib/**/__tests__'));
 
-gulp.task(
-  'copy',
-  gulp.series('copy server templates', 'copy starter templates'),
-);
+gulp.task('default', gulp.series('clean', 'build', 'cleanup'));

jest.config.js

@@ -12,5 +12,14 @@ module.exports = {
         '<rootDir>/lib/*',
       ],
     },
+    {
+      ...common,
+      displayName: 'unit',
+      testMatch: ['<rootDir>/**/__tests__/*.test.js'],
+      modulePathIgnorePatterns: [
+        '<rootDir>/my-app/*/package.json',
+        '<rootDir>/lib/*',
+      ],
+    },
   ],
 };

jest/helpers.js

@@ -28,7 +28,3 @@ export const rmTempDir = (tempDirPath) => {
     fs.rmdirSync(tempDirPath, { recursive: true });
   }
 };
-
-// .mevnrc
-export const fetchProjectConfig = (genPath) =>
-  JSON.parse(fs.readFileSync(path.join(genPath, '.mevnrc'), 'utf8'));

package.json

@@ -11,7 +11,7 @@
     "mevn": "./bin/mevn.js"
   },
   "scripts": {
-    "build": "gulp clean && babel src --out-dir lib --copy-files --include-dotfiles && gulp copy",
+    "build": "gulp",
     "build:watch": "babel --watch src --out-dir lib --copy-files --include-dotfiles",
     "lint": "eslint ./src __e2e__ jest",
     "lint:fix": "eslint --fix ./src __e2e__ jest",

src/utils/__tests__/helpers.test.js

@@ -0,0 +1,72 @@
+import { ENTER } from 'cli-prompts-test';
+import fs from 'fs';
+import path from 'path';
+
+import { copyDirSync, fetchProjectConfig, readFileContent } from '../helpers';
+import { runPromptWithAnswers } from '../../../jest/helpers';
+
+const srcPath = path.join(__dirname, 'test-dir');
+const destPath = path.join(__dirname, 'dest-path');
+const genPath = path.join(__dirname, 'my-app');
+
+beforeAll(() => {
+  if (!fs.existsSync(srcPath)) {
+    fs.mkdirSync(srcPath);
+    fs.writeFileSync(path.join(srcPath, 'index.js'), '// Test');
+  }
+  if (!fs.existsSync(destPath)) {
+    fs.mkdirSync(destPath);
+  }
+});
+
+afterAll(() => {
+  // copyDirSync()
+  fs.rmdirSync(srcPath, { recursive: true });
+  fs.rmdirSync(destPath, { recursive: true });
+
+  // fetchProjectConfig()
+  fs.rmdirSync(genPath, { recursive: true });
+});
+
+test('copyDirSync()', () => {
+  // Copy source directory to destination path
+  copyDirSync(srcPath, destPath);
+
+  // Assertions
+  expect(fs.existsSync(path.join(destPath, 'test-dir'))).toBeTruthy();
+  expect(
+    fs.existsSync(path.join(destPath, 'test-dir', 'index.js')),
+  ).toBeTruthy();
+  expect(
+    fs.readFileSync(path.join(destPath, 'test-dir', 'index.js'), 'utf8'),
+  ).toBe('// Test');
+});
+
+test('fetchProjectConfig()', async () => {
+  await runPromptWithAnswers(
+    ['init', 'my-app'],
+    [
+      ENTER, // Choose Default as the starter template
+      ENTER, // Requires server directory
+    ],
+    __dirname,
+  );
+
+  const projectConfig = {
+    name: 'my-app',
+    template: 'Default',
+    isConfigured: {
+      client: false,
+      server: false,
+    },
+  };
+  expect(fetchProjectConfig(genPath)).toEqual(projectConfig);
+});
+
+test('not passing in a path to fetchProjectConfig()', () => {
+  expect(fetchProjectConfig()).toBe(undefined);
+});
+
+test('not passing in a file path to readFileContent()', () => {
+  expect(readFileContent()).toBe(undefined);
+});

src/utils/helpers.js

@@ -28,8 +28,13 @@ export const checkIfConfigFileExists = () => {
  * @returns {Object}
  */
 
-export const fetchProjectConfig = () =>
-  JSON.parse(fs.readFileSync('.mevnrc', 'utf8'));
+export const fetchProjectConfig = (genPath) => {
+  const configFilePath = genPath ? path.join(genPath, '.mevnrc') : '.mevnrc';
+  if (!fs.existsSync(configFilePath)) {
+    return;
+  }
+  return JSON.parse(fs.readFileSync(configFilePath, 'utf8'));
+};
 
 /**
  * Copy files
@@ -66,8 +71,8 @@ export const copyDirSync = (source, target) => {
 
   // copy
   if (fs.lstatSync(source).isDirectory()) {
-    fs.readdirSync(source).forEach(function (file) {
-      var curSource = path.join(source, file);
+    fs.readdirSync(source).forEach((file) => {
+      const curSource = path.join(source, file);
       if (fs.lstatSync(curSource).isDirectory()) {
         copyDirSync(curSource, targetFolder);
       } else {
@@ -111,6 +116,9 @@ const stripChar = (fileContent) =>
  */
 
 export const readFileContent = (filePath) => {
+  if (!filePath) {
+    return;
+  }
   const fileContent = fs.readFileSync(filePath, 'utf8').split('\n');
 
   // Check if the host OS is windows