test: add

test/build/custom-webpack/custom-webpack.test.js

@@ -1,21 +1,26 @@
 'use strict';
 
+const { resolve } = require('path');
 const { run } = require('../../utils/test-utils');
 
-const importLocalMock = jest.fn();
-jest.setMock('import-local', importLocalMock);
+describe('custom-webpack', () => {
+    it('should use custom-webpack.js', () => {
+        const { exitCode, stderr, stdout } = run(__dirname, [], {
+            env: { WEBPACK_PACKAGE: resolve(__dirname, './custom-webpack.js') },
+        });
 
-describe('import local', () => {
-    beforeEach(() => {
-        importLocalMock.mockClear();
+        expect(exitCode).toBe(0);
+        expect(stderr).toBeFalsy();
+        expect(stdout).toContain('main.js');
     });
-    it('should skip import local when supplied', () => {
+
+    it('should throw an erroe for invalid-webpack.js', () => {
         const { exitCode, stderr, stdout } = run(__dirname, [], {
-            env: { WEBPACK_PACKAGE: './custom-webpack.js' },
+            env: { WEBPACK_PACKAGE: resolve(__dirname, './invalid-webpack.js') },
         });
-       // expect(importLocalMock).toHaveBeenCalledTimes(0);
-        //expect(exitCode).toBe(0);
-        expect(stderr).toBeFalsy();
-        expect(stdout).toBeTruthy();
+
+        expect(exitCode).toBe(2);
+        expect(stderr).toContain(`Error: Cannot find module`);
+        expect(stdout).toBeFalsy();
     });
 });

test/build/custom-webpack/src/index.js

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

test/build/custom-webpack/webpack.config.js

@@ -0,0 +1,3 @@
+module.exports = {
+    mode: 'production',
+};