tests: add tests for optimization mangleExports (#1724)

* tests: add tests for optimization mangleExports

* tests: add tests for optimization mangleExports

test/optimization/index.js

@@ -0,0 +1 @@
+console.log("Bokuto")

test/optimization/optimization.test.js

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+const fs = require('fs');
+const { join } = require('path');
+const { version } = require('webpack');
+const { run } = require('../utils/test-utils');
+
+describe('optimization option in config', () => {
+ it('should work with mangleExports disabled', () => {
+ const { stdout, stderr } = run(__dirname, [], false);
+ // Should throw when webpack is less than 5
+ if (!version.startsWith('5')) {
+ expect(stderr).toContain("configuration.optimization has an unknown property 'mangleExports'");
+ } else {
+ // Should apply the provided optimization to the compiler
+ expect(stdout).toContain('mangleExports: false');
+ // check that the output file exists
+ expect(fs.existsSync(join(__dirname, '/dist/main.js'))).toBeTruthy();
+ expect(stderr).toBeFalsy();
+ }
+ });
+});

test/optimization/webpack.config.js

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+const WebpackCLITestPlugin = require('../utils/webpack-cli-test-plugin');
+
+module.exports = {
+ plugins: [new WebpackCLITestPlugin()],
+ optimization: {
+ mangleExports: false,
+ },
+};