Add new test for virtual file output when modifying entryFileNames

Use entryFileNames to change the extension of the filename to be mjs,
and see that the file created from the virtual file chunk has a .mjs
extension

Note that the amd definition contains the .mjs extension, as amd ids only
strip the .js file extension, which is slightly odd but probably ok as
this amd is not the targetted usecase for this behaviour

test/chunking-form/samples/preserve-modules-virtual-modules-filename-pattern/_config.js

@@ -0,0 +1,34 @@
+module.exports = {
+	description:
+		'Generates actual files whose filename adheres to entryFileNames for virtual modules when preserving modules',
+	options: {
+		input: 'main.js',
+		output: {
+			preserveModules: true,
+			entryFileNames: 'entry-[name]-[format]-[ext][extname][assetExtname].mjs'
+		},
+		plugins: [
+			{
+				resolveId(id) {
+					if (id === '\0virtualModule') return id;
+					if (id === '\0virtualWithExt.js') return id;
+					if (id === '\0virtualWithAssetExt.str') return id;
+				},
+				load(id) {
+					if (id === '\0virtualModule') return 'export const virtual = "Virtual!";\n';
+					if (id === '\0virtualWithExt.js') return 'export const virtual2 = "Virtual2!";\n';
+					if (id === '\0virtualWithAssetExt.str') return 'export const virtual3 = "Virtual3!";\n';
+				},
+				transform(code, id) {
+					if (id === '\0virtualModule') return null;
+					if (id === '\0virtualWithExt.js') return null;
+					if (id === '\0virtualWithAssetExt.str') return null;
+					return (
+						'import {virtual} from "\0virtualModule";\nimport {virtual2} from "\0virtualWithExt.js";\nimport {virtual3} from "\0virtualWithAssetExt.str";' +
+						code
+					);
+				}
+			}
+		]
+	}
+};

test/chunking-form/samples/preserve-modules-virtual-modules-filename-pattern/_expected/amd/_virtual/entry-_virtualModule-amd-.mjs

@@ -0,0 +1,9 @@
+define(['exports'], (function (exports) { 'use strict';
+
+	const virtual = "Virtual!";
+
+	exports.virtual = virtual;
+
+	Object.defineProperty(exports, '__esModule', { value: true });
+
+}));

test/chunking-form/samples/preserve-modules-virtual-modules-filename-pattern/_expected/amd/_virtual/entry-_virtualWithAssetExt-amd-str.str.str.mjs

@@ -0,0 +1,9 @@
+define(['exports'], (function (exports) { 'use strict';
+
+	const virtual3 = "Virtual3!";
+
+	exports.virtual3 = virtual3;
+
+	Object.defineProperty(exports, '__esModule', { value: true });
+
+}));

test/chunking-form/samples/preserve-modules-virtual-modules-filename-pattern/_expected/amd/_virtual/entry-_virtualWithExt-amd-js.js.mjs

@@ -0,0 +1,9 @@
+define(['exports'], (function (exports) { 'use strict';
+
+	const virtual2 = "Virtual2!";
+
+	exports.virtual2 = virtual2;
+
+	Object.defineProperty(exports, '__esModule', { value: true });
+
+}));

test/chunking-form/samples/preserve-modules-virtual-modules-filename-pattern/_expected/amd/entry-main-amd-js.js.mjs

@@ -0,0 +1,7 @@
+define(['./_virtual/entry-_virtualModule-amd-.mjs', './_virtual/entry-_virtualWithExt-amd-js.js.mjs', './_virtual/entry-_virtualWithAssetExt-amd-str.str.str.mjs'], (function (_virtualModule, _virtualWithExt, _virtualWithAssetExt) { 'use strict';
+
+	assert.equal(_virtualModule.virtual, 'Virtual!');
+	assert.equal(_virtualWithExt.virtual2, 'Virtual2!');
+	assert.equal(_virtualWithAssetExt.virtual3, 'Virtual3!');
+
+}));

test/chunking-form/samples/preserve-modules-virtual-modules-filename-pattern/_expected/cjs/_virtual/entry-_virtualModule-cjs-.mjs

@@ -0,0 +1,7 @@
+'use strict';
+
+Object.defineProperty(exports, '__esModule', { value: true });
+
+const virtual = "Virtual!";
+
+exports.virtual = virtual;

test/chunking-form/samples/preserve-modules-virtual-modules-filename-pattern/_expected/cjs/_virtual/entry-_virtualWithAssetExt-cjs-str.str.str.mjs

@@ -0,0 +1,7 @@
+'use strict';
+
+Object.defineProperty(exports, '__esModule', { value: true });
+
+const virtual3 = "Virtual3!";
+
+exports.virtual3 = virtual3;

test/chunking-form/samples/preserve-modules-virtual-modules-filename-pattern/_expected/cjs/_virtual/entry-_virtualWithExt-cjs-js.js.mjs

@@ -0,0 +1,7 @@
+'use strict';
+
+Object.defineProperty(exports, '__esModule', { value: true });
+
+const virtual2 = "Virtual2!";
+
+exports.virtual2 = virtual2;

test/chunking-form/samples/preserve-modules-virtual-modules-filename-pattern/_expected/cjs/entry-main-cjs-js.js.mjs

@@ -0,0 +1,9 @@
+'use strict';
+
+var _virtualModule = require('./_virtual/entry-_virtualModule-cjs-.mjs');
+var _virtualWithExt = require('./_virtual/entry-_virtualWithExt-cjs-js.js.mjs');
+var _virtualWithAssetExt = require('./_virtual/entry-_virtualWithAssetExt-cjs-str.str.str.mjs');
+
+assert.equal(_virtualModule.virtual, 'Virtual!');
+assert.equal(_virtualWithExt.virtual2, 'Virtual2!');
+assert.equal(_virtualWithAssetExt.virtual3, 'Virtual3!');

test/chunking-form/samples/preserve-modules-virtual-modules-filename-pattern/_expected/es/_virtual/entry-_virtualModule-es-.mjs

@@ -0,0 +1,3 @@
+const virtual = "Virtual!";
+
+export { virtual };

test/chunking-form/samples/preserve-modules-virtual-modules-filename-pattern/_expected/es/_virtual/entry-_virtualWithAssetExt-es-str.str.str.mjs

@@ -0,0 +1,3 @@
+const virtual3 = "Virtual3!";
+
+export { virtual3 };

test/chunking-form/samples/preserve-modules-virtual-modules-filename-pattern/_expected/es/_virtual/entry-_virtualWithExt-es-js.js.mjs

@@ -0,0 +1,3 @@
+const virtual2 = "Virtual2!";
+
+export { virtual2 };

test/chunking-form/samples/preserve-modules-virtual-modules-filename-pattern/_expected/es/entry-main-es-js.js.mjs

@@ -0,0 +1,7 @@
+import { virtual } from './_virtual/entry-_virtualModule-es-.mjs';
+import { virtual2 } from './_virtual/entry-_virtualWithExt-es-js.js.mjs';
+import { virtual3 } from './_virtual/entry-_virtualWithAssetExt-es-str.str.str.mjs';
+
+assert.equal(virtual, 'Virtual!');
+assert.equal(virtual2, 'Virtual2!');
+assert.equal(virtual3, 'Virtual3!');

test/chunking-form/samples/preserve-modules-virtual-modules-filename-pattern/_expected/system/_virtual/entry-_virtualModule-system-.mjs

@@ -0,0 +1,10 @@
+System.register([], (function (exports) {
+	'use strict';
+	return {
+		execute: (function () {
+
+			const virtual = exports('virtual', "Virtual!");
+
+		})
+	};
+}));

test/chunking-form/samples/preserve-modules-virtual-modules-filename-pattern/_expected/system/_virtual/entry-_virtualWithAssetExt-system-str.str.str.mjs

@@ -0,0 +1,10 @@
+System.register([], (function (exports) {
+	'use strict';
+	return {
+		execute: (function () {
+
+			const virtual3 = exports('virtual3', "Virtual3!");
+
+		})
+	};
+}));

test/chunking-form/samples/preserve-modules-virtual-modules-filename-pattern/_expected/system/_virtual/entry-_virtualWithExt-system-js.js.mjs

@@ -0,0 +1,10 @@
+System.register([], (function (exports) {
+	'use strict';
+	return {
+		execute: (function () {
+
+			const virtual2 = exports('virtual2', "Virtual2!");
+
+		})
+	};
+}));

test/chunking-form/samples/preserve-modules-virtual-modules-filename-pattern/_expected/system/entry-main-system-js.js.mjs

@@ -0,0 +1,20 @@
+System.register(['./_virtual/entry-_virtualModule-system-.mjs', './_virtual/entry-_virtualWithExt-system-js.js.mjs', './_virtual/entry-_virtualWithAssetExt-system-str.str.str.mjs'], (function () {
+	'use strict';
+	var virtual, virtual2, virtual3;
+	return {
+		setters: [function (module) {
+			virtual = module.virtual;
+		}, function (module) {
+			virtual2 = module.virtual2;
+		}, function (module) {
+			virtual3 = module.virtual3;
+		}],
+		execute: (function () {
+
+			assert.equal(virtual, 'Virtual!');
+			assert.equal(virtual2, 'Virtual2!');
+			assert.equal(virtual3, 'Virtual3!');
+
+		})
+	};
+}));

test/chunking-form/samples/preserve-modules-virtual-modules-filename-pattern/main.js

@@ -0,0 +1,3 @@
+assert.equal(virtual, 'Virtual!');
+assert.equal(virtual2, 'Virtual2!');
+assert.equal(virtual3, 'Virtual3!');