tests: fix

package.json

@@ -38,7 +38,7 @@
     "pretest": "yarn build && yarn lint && yarn prepsuite",
     "test": "jest --reporters=default",
     "test:smoketests": "nyc node smoketests",
-    "test:coverage": "nyc jest --forceExit",
+    "test:coverage": "nyc --require ts-node/register jest --forceExit",
     "test:cli": "jest test --reporters=default --forceExit",
     "test:packages": "jest packages/ --reporters=default --forceExit",
     "test:ci": "yarn test:cli && yarn test:packages",

test/config-format/typescript-commonjs-default/typescript-commonjs-default.test.js → test/config-format/commonjs-default/commonjs-default.test.js

@@ -1,14 +1,11 @@
 const { run } = require('../../utils/test-utils');
-const { existsSync } = require('fs');
-const { resolve } = require('path');
 
 describe('webpack cli', () => {
-    it('should support typescript file', () => {
-        const { exitCode, stderr, stdout } = run(__dirname, ['-c', './webpack.config.ts']);
+    it('should support CommonJS file', () => {
+        const { exitCode, stderr, stdout } = run(__dirname, ['-c', 'webpack.config.cjs'], false);
 
+        expect(exitCode).toBe(0);
         expect(stderr).toBeFalsy();
         expect(stdout).toBeTruthy();
-        expect(exitCode).toBe(0);
-        expect(existsSync(resolve(__dirname, 'dist/foo.bundle.js'))).toBeTruthy();
     });
 });

test/config-format/commonjs-default/main.js

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

test/config-format/commonjs-default/webpack.config.cjs

@@ -0,0 +1,12 @@
+const path = require('path');
+
+const config = {
+    mode: 'production',
+    entry: './main.js',
+    output: {
+        path: path.resolve(__dirname, 'dist'),
+        filename: 'foo.bundle.js',
+    },
+};
+
+module.exports.default = config;