Add test with treeshaking disabled

test/cli/no-treeshake/_config.js

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+module.exports = {
+	description: 'generates IIFE export with all code',
+	command: 'rollup main.js --format iife --name shakeless --no-treeshake'
+};

test/cli/no-treeshake/_expected.js

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+var shakeless = (function () {
+	'use strict';
+
+	const version = '1.2.0';
+
+	var main = ( x, y ) => x + y;
+
+	return main;
+
+}());

test/cli/no-treeshake/main.js

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+const version = '1.2.0';
+
+export default ( x, y ) => x + y;

test/form/no-treeshake/_config.js

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+module.exports = {
+	description: 'all code should be included if tree-shaking is disabled',
+	options: {
+		external: [ 'external' ],
+		globals: {
+			external: 'external'
+		},
+		moduleName: /* not shaken, but */ 'stirred',
+		treeshake: false
+	}
+};

test/form/no-treeshake/_expected/amd.js

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+define(['exports', 'external'], function (exports, external) { 'use strict';
+
+	var foo = 'unused';
+
+	const quux = 1;
+
+	const other = () => quux;
+
+	function bar () {
+		return foo;
+	}
+
+	function baz () {
+		return 13 + external.value;
+	}
+
+	exports.baz = baz;
+	exports.strange = quux;
+
+});

test/form/no-treeshake/_expected/cjs.js

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+'use strict';
+
+var external = require('external');
+
+var foo = 'unused';
+
+const quux = 1;
+
+const other = () => quux;
+
+function bar () {
+	return foo;
+}
+
+function baz () {
+	return 13 + external.value;
+}
+
+exports.baz = baz;
+exports.strange = quux;

test/form/no-treeshake/_expected/es6.js

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+import * as external from 'external';
+
+var foo = 'unused';
+
+const quux = 1;
+
+const other = () => quux;
+
+function bar () {
+	return foo;
+}
+
+function baz () {
+	return 13 + external.value;
+}
+
+export { baz, quux as strange };

test/form/no-treeshake/_expected/iife.js

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+(function (exports,external) {
+	'use strict';
+
+	var foo = 'unused';
+
+	const quux = 1;
+
+	const other = () => quux;
+
+	function bar () {
+		return foo;
+	}
+
+	function baz () {
+		return 13 + external.value;
+	}
+
+	exports.baz = baz;
+	exports.strange = quux;
+
+}((this.stirred = this.stirred || {}),external));

test/form/no-treeshake/_expected/umd.js

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+(function (global, factory) {
+	typeof exports === 'object' && typeof module !== 'undefined' ? factory(exports, require('external')) :
+	typeof define === 'function' && define.amd ? define(['exports', 'external'], factory) :
+	(factory((global.stirred = global.stirred || {}),global.external));
+}(this, function (exports,external) { 'use strict';
+
+	var foo = 'unused';
+
+	const quux = 1;
+
+	const other = () => quux;
+
+	function bar () {
+		return foo;
+	}
+
+	function baz () {
+		return 13 + external.value;
+	}
+
+	exports.baz = baz;
+	exports.strange = quux;
+
+}));

test/form/no-treeshake/foo.js

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+export default 'unused';

test/form/no-treeshake/main.js

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+import * as external from 'external';
+import foo from './foo.js'
+export { quux as strange } from './quux.js';
+
+function bar () {
+	return foo;
+}
+
+export function baz () {
+	return 13 + external.value;
+}

test/form/no-treeshake/quux.js

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+export const quux = 1;
+
+const other = () => quux;