tests: add test for --entry-reset flag (#1848)

Co-authored-by: Rishabh Chawla <rishabh31121999@gmail.com>

Author: snitin315

test/core-flags/entry-reset-flag.test.js

@@ -0,0 +1,13 @@
+'use strict';
+
+const { run } = require('../utils/test-utils');
+
+describe('--entry-reset flag', () => {
+    it('should reset entry correctly', () => {
+        const { stderr, stdout } = run(__dirname, ['--entry-reset', '--entry', 'src/entry.js']);
+
+        expect(stderr).toBeFalsy();
+        expect(stdout).toContain('src/entry.js');
+        expect(stdout).not.toContain('src/main.js');
+    });
+});

test/core-flags/src/entry.js

@@ -0,0 +1 @@
+console.log('another-entry');

test/core-flags/main.js test/core-flags/src/main.jstest/core-flags/main.js renamed to test/core-flags/src/main.js

@@ -1,8 +1,8 @@
 const WebpackCLITestPlugin = require('../utils/webpack-cli-test-plugin');
 
 module.exports = {
-    entry: './main.js',
+    entry: './src/main.js',
     mode: 'development',
     name: 'compiler',
-    plugins: [new WebpackCLITestPlugin(['module', 'resolve', 'resolveLoader'])],
+    plugins: [new WebpackCLITestPlugin(['module', 'entry', 'resolve', 'resolveLoader'])],
 };