tests: add test case for supplying relative path (#2082)

Author: jamesgeorge007

test/plugin/plugin.test.js

@@ -1,18 +1,22 @@
-const { existsSync } = require('fs');
+const { existsSync, mkdirSync } = require('fs');
 const { join, resolve } = require('path');
 const rimraf = require('rimraf');
 const stripAnsi = require('strip-ansi');
 const { run, runPromptWithAnswers } = require('../utils/test-utils');
+
 const ENTER = '\x0D';
+
 const firstPrompt = '? Plugin name';
 const pluginName = 'test-plugin';
+
 const pluginPath = join(__dirname, pluginName);
-const customPluginPath = join(__dirname, 'test-assets', 'my-webpack-plugin');
+const genPath = join(__dirname, 'test-assets');
+const customPluginPath = join(genPath, pluginName);
 
 describe('plugin command', () => {
-    beforeAll(() => {
+    beforeEach(() => {
         rimraf.sync(pluginPath);
-        rimraf.sync(customPluginPath);
+        rimraf.sync(genPath);
     });
 
     it('should ask the plugin name when invoked', () => {
@@ -48,7 +52,7 @@ describe('plugin command', () => {
     });
 
     it('should scaffold plugin template in the specified path', async () => {
-        let { stdout } = await runPromptWithAnswers(__dirname, ['plugin', 'test-assets'], [ENTER]);
+        let { stdout } = await runPromptWithAnswers(__dirname, ['plugin', 'test-assets'], [`${pluginName}${ENTER}`]);
 
         expect(stripAnsi(stdout)).toContain(firstPrompt);
 
@@ -68,7 +72,35 @@ describe('plugin command', () => {
         });
 
         // Check if the the generated plugin works successfully
-        stdout = run(__dirname, ['--config', './test-plugin/examples/simple/webpack.config.js'], false).stdout;
+        stdout = run(customPluginPath, ['--config', './examples/simple/webpack.config.js'], false).stdout;
+        expect(stdout).toContain('Hello World!');
+    });
+
+    it('should scaffold plugin template in the current directory', async () => {
+        // Create test-assets directory
+        mkdirSync(genPath);
+
+        let { stdout } = await runPromptWithAnswers(genPath, ['plugin', './'], [`${pluginName}${ENTER}`]);
+
+        expect(stripAnsi(stdout)).toContain(firstPrompt);
+
+        // Check if the output directory exists with the appropriate plugin name
+        expect(existsSync(customPluginPath)).toBeTruthy();
+
+        // Skip test in case installation fails
+        if (!existsSync(resolve(customPluginPath, './yarn.lock'))) {
+            return;
+        }
+
+        // Test regressively files are scaffolded
+        const files = ['package.json', 'examples', 'src', 'test', 'src/index.js', 'examples/simple/webpack.config.js'];
+
+        files.forEach((file) => {
+            expect(existsSync(join(customPluginPath, file))).toBeTruthy();
+        });
+
+        // Check if the the generated plugin works successfully
+        stdout = run(customPluginPath, ['--config', './examples/simple/webpack.config.js'], false).stdout;
         expect(stdout).toContain('Hello World!');
     });
 });