✅ Add tests

.eslintrc.json

@@ -1,3 +1,6 @@
 {
-	"extends": "gluons/es6"
+	"extends": "gluons/es6",
+	"env": {
+		"mocha": true
+	}
 }

package.json

@@ -12,7 +12,9 @@
     "npm": ">=3"
   },
   "scripts": {
-    "test": "echo \"Error: no test specified\" && exit 1"
+    "pretest": "node ./script/prepare-test.js",
+    "test": "mocha",
+    "posttest": "node ./script/clean-test.js"
   },
   "repository": {
     "type": "git",
@@ -31,8 +33,10 @@
   },
   "homepage": "https://github.com/gluons/npm-reinstall",
   "devDependencies": {
+    "chai": "*",
     "eslint": "^3.19.0",
-    "eslint-config-gluons": "^2.0.1"
+    "eslint-config-gluons": "^2.0.1",
+    "mocha": "*"
   },
   "dependencies": {
     "chalk": "^1.1.3",

script/clean-test.js

@@ -0,0 +1,24 @@
+const chalk = require('chalk');
+const rimraf = require('rimraf');
+const path = require('path');
+
+const depsNodeModulesPath = path.resolve(__dirname, '../test/deps/node_modules');
+const devDepsNodeModulesPath = path.resolve(__dirname, '../test/dev-deps/node_modules');
+
+console.log(chalk.cyan('Cleaning test...'));
+
+rimraf(depsNodeModulesPath, err => {
+	if (err) {
+		console.log(chalk.red('Clean dependencies fail.'));
+	} else {
+		console.log(chalk.green('Clean dependencies succeed.'));
+	}
+});
+
+rimraf(devDepsNodeModulesPath, err => {
+	if (err) {
+		console.log(chalk.red('Clean devDependencies fail.'));
+	} else {
+		console.log(chalk.green('Clean devDependencies succeed.'));
+	}
+});

script/prepare-test.js

@@ -0,0 +1,34 @@
+const chalk = require('chalk');
+const spawn = require('cross-spawn');
+const path = require('path');
+
+const depsPath = path.resolve(__dirname, '../test/deps');
+const devDepsPath = path.resolve(__dirname, '../test/dev-deps');
+
+console.log(chalk.cyan('Preparing test...'));
+
+let depsChild = spawn('npm', ['install'], {
+	cwd: depsPath,
+	stdio: 'ignore'
+});
+
+let devDepsChild = spawn('npm', ['install'], {
+	cwd: devDepsPath,
+	stdio: 'ignore'
+});
+
+depsChild.on('close', code => {
+	if (code === 0) {
+		console.log(chalk.green('Prepare dependencies succeed.'));
+	} else {
+		console.log(chalk.red('Prepare dependencies fail.'));
+	}
+});
+
+devDepsChild.on('close', code => {
+	if (code === 0) {
+		console.log(chalk.green('Prepare devDependencies succeed.'));
+	} else {
+		console.log(chalk.red('Prepare devDependencies fail.'));
+	}
+});

test/deps-test.js

@@ -0,0 +1,41 @@
+const expect = require('chai').expect;
+const spawn = require('cross-spawn');
+const path = require('path');
+
+const deps = require('./deps');
+
+let cwd = path.resolve(__dirname, './deps');
+let reinstallPath = path.resolve(__dirname, '../reinstall');
+
+describe('Dependencies', function () {
+	this.slow(5000);
+	this.timeout(10000);
+
+	it('should have dependencies before reinstallation', () => {
+		let result = deps();
+		expect(result).to.exist;
+	});
+	it('should have dependencies after reinstallation', () => new Promise((resolve, reject) => {
+		let child = spawn('node', [reinstallPath, '--save', 'vue', 'vue-router'], {
+			cwd
+		});
+		let isErrorThrown = false;
+
+		child.on('error', err => {
+			if (!isErrorThrown) {
+				isErrorThrown = true;
+				reject(err);
+			}
+		});
+		child.on('close', code => {
+			if (code === 0) {
+				resolve();
+			} else {
+				if (!isErrorThrown) {
+					isErrorThrown = true;
+					reject(code);
+				}
+			}
+		});
+	}));
+});

test/deps/index.js

@@ -0,0 +1,8 @@
+module.exports = function () {
+	let Vue = require('vue');
+	let VueRouter = require('vue-router');
+
+	Vue.use(VueRouter);
+
+	return new Vue();
+};

test/deps/package.json

@@ -0,0 +1,17 @@
+{
+  "name": "deps",
+  "version": "1.0.0",
+  "description": "Deps",
+  "main": "./index.js",
+  "private": true,
+  "scripts": {
+    "test": "exit 0"
+  },
+  "keywords": [],
+  "author": "Saran Tanpituckpong <sarunta@gmail.com>",
+  "license": "UNLICENSED",
+  "dependencies": {
+    "vue": "^2.3.3",
+    "vue-router": "^2.5.3"
+  }
+}

test/dev-deps-test.js

@@ -0,0 +1,41 @@
+const expect = require('chai').expect;
+const spawn = require('cross-spawn');
+const path = require('path');
+
+const devDeps = require('./dev-deps');
+
+let cwd = path.resolve(__dirname, './dev-deps');
+let reinstallPath = path.resolve(__dirname, '../reinstall');
+
+describe('Dev Dependencies', function () {
+	this.slow(5000);
+	this.timeout(10000);
+
+	it('should have devDependencies before reinstallation', () => {
+		let result = devDeps();
+		expect(result).to.equal(1);
+	});
+	it('should have devDependencies after reinstallation', () => new Promise((resolve, reject) => {
+		let child = spawn('node', [reinstallPath, '--save-dev', 'evl', 'nvl'], {
+			cwd
+		});
+		let isErrorThrown = false;
+
+		child.on('error', err => {
+			if (!isErrorThrown) {
+				isErrorThrown = true;
+				reject(err);
+			}
+		});
+		child.on('close', code => {
+			if (code === 0) {
+				resolve();
+			} else {
+				if (!isErrorThrown) {
+					isErrorThrown = true;
+					reject(code);
+				}
+			}
+		});
+	}));
+});

test/dev-deps/index.js

@@ -0,0 +1,11 @@
+module.exports = function () {
+	let evl = require('evl');
+	let nvl = require('nvl');
+
+	return evl(
+		() => {
+			throw new Error();
+		},
+		() => nvl(null, 1)
+	);
+};

test/dev-deps/package.json

@@ -0,0 +1,17 @@
+{
+  "name": "dev-deps",
+  "version": "1.0.0",
+  "description": "Dev Deps",
+  "main": "./index.js",
+  "private": true,
+  "scripts": {
+    "test": "exit 0"
+  },
+  "keywords": [],
+  "author": "Saran Tanpituckpong <sarunta@gmail.com>",
+  "license": "UNLICENSED",
+  "devDependencies": {
+    "evl": "^1.0.1",
+    "nvl": "^1.0.1"
+  }
+}