tests: for exit-code in case of error in config (#1979)

.eslintignore

@@ -15,6 +15,7 @@ test/**/bin/
 test/**/binary/
 test/**/index.js
 test/typescript/webpack.config.ts
+test/config/error/syntax-error.js
 test/plugin/test-plugin/test/test-utils.js
 test/plugin/test-plugin/test/functional.test.js
 test/plugin/test-plugin/examples/simple/src/static-esm-module.js

.prettierignore

@@ -4,3 +4,4 @@ test/**/dist/
 test/**/bin/
 test/**/binary/
 test/**/index.js
+test/config/error/syntax-error.js

test/config/error/config-error.test.js

@@ -0,0 +1,20 @@
+'use strict';
+const { resolve } = require('path');
+const { run } = require('../../utils/test-utils');
+
+describe('config error', () => {
+    it('should throw error with invalid configuration', () => {
+        const { stderr, exitCode } = run(__dirname, ['-c', resolve(__dirname, 'webpack.config.js')]);
+
+        expect(stderr).toContain('Invalid configuration object');
+        expect(stderr).toContain(`"development" | "production" | "none"`);
+        expect(exitCode).toBe(2);
+    });
+
+    it('should throw syntax error and exit with non-zero exit code', () => {
+        const { stderr, exitCode } = run(__dirname, ['-c', resolve(__dirname, 'syntax-error.js')]);
+
+        expect(stderr).toContain('SyntaxError: Unexpected token');
+        expect(exitCode).toBe(2);
+    });
+});

test/config/error/src/index.js

@@ -0,0 +1 @@
+console.log('config error test');

test/config/error/syntax-error.js

@@ -0,0 +1,5 @@
+module.exports = {
+    name: 'config-error',
+    mode: 'development',
+    target: 'node'; //SyntaxError: Unexpected token ';'
+};

test/config/error/webpack.config.js

@@ -0,0 +1,5 @@
+module.exports = {
+    name: 'config-error',
+    mode: 'unknown', //error
+    target: 'node',
+};