diff --git a/src/Chunk.ts b/src/Chunk.ts
index 00a51b6d993..ee7b92ccc3c 100644
--- a/src/Chunk.ts
+++ b/src/Chunk.ts
@@ -126,7 +126,12 @@ export default class Chunk {
 		if (!facadedModule.facadeChunk) {
 			facadedModule.facadeChunk = chunk;
 		}
-		chunk.dependencies.add(facadedModule.chunk!);
+		for (const dependency of facadedModule.getDependenciesToBeIncluded()) {
+			chunk.dependencies.add(dependency instanceof Module ? dependency.chunk! : dependency);
+		}
+		if (!chunk.dependencies.has(facadedModule.chunk!) && facadedModule.hasEffects()) {
+			chunk.dependencies.add(facadedModule.chunk!);
+		}
 		chunk.facadeModule = facadedModule;
 		chunk.strictFacade = true;
 		return chunk;
diff --git a/src/Module.ts b/src/Module.ts
index c3d840e45a2..723b5e74823 100644
--- a/src/Module.ts
+++ b/src/Module.ts
@@ -368,10 +368,7 @@ export default class Module {
 			const possibleDependencies = new Set(this.dependencies);
 			for (const dependency of possibleDependencies) {
 				if (!dependency.moduleSideEffects || relevantDependencies.has(dependency)) continue;
-				if (
-					dependency instanceof ExternalModule ||
-					(dependency.ast.included && dependency.ast.hasEffects(createHasEffectsContext()))
-				) {
+				if (dependency instanceof ExternalModule || dependency.hasEffects()) {
 					relevantDependencies.add(dependency);
 				} else {
 					for (const transitiveDependency of dependency.dependencies) {
@@ -532,6 +529,12 @@ export default class Module {
 		return null as any;
 	}
 
+	hasEffects() {
+		return (
+			this.moduleSideEffects && this.ast.included && this.ast.hasEffects(createHasEffectsContext())
+		);
+	}
+
 	include(): void {
 		const context = createInclusionContext();
 		if (this.ast.shouldBeIncluded(context)) this.ast.include(context, false);
diff --git a/src/ModuleLoader.ts b/src/ModuleLoader.ts
index 226da80ee99..b8d37c610cb 100644
--- a/src/ModuleLoader.ts
+++ b/src/ModuleLoader.ts
@@ -142,32 +142,31 @@ export class ModuleLoader {
 		this.nextEntryModuleIndex += unresolvedEntryModules.length;
 		const loadNewEntryModulesPromise = Promise.all(
 			unresolvedEntryModules.map(
-				async ({ fileName, id, name, importer }): Promise<Module> => {
-					const module = await this.loadEntryModule(id, true, importer);
-					if (fileName !== null) {
-						module.chunkFileNames.add(fileName);
-					} else if (name !== null) {
-						if (module.chunkName === null) {
-							module.chunkName = name;
-						}
-						if (isUserDefined) {
-							module.userChunkNames.add(name);
-						}
-					}
-					return module;
-				}
+				({ id, importer }): Promise<Module> => this.loadEntryModule(id, true, importer)
 			)
 		).then(entryModules => {
 			let moduleIndex = firstEntryModuleIndex;
-			for (const entryModule of entryModules) {
+			for (let index = 0; index < entryModules.length; index++) {
+				const { fileName, name } = unresolvedEntryModules[index];
+				const entryModule = entryModules[index];
 				entryModule.isUserDefinedEntryPoint = entryModule.isUserDefinedEntryPoint || isUserDefined;
-				const existingIndexModule = this.indexedEntryModules.find(
+				if (fileName !== null) {
+					entryModule.chunkFileNames.add(fileName);
+				} else if (name !== null) {
+					if (entryModule.chunkName === null) {
+						entryModule.chunkName = name;
+					}
+					if (isUserDefined) {
+						entryModule.userChunkNames.add(name);
+					}
+				}
+				const existingIndexedModule = this.indexedEntryModules.find(
 					indexedModule => indexedModule.module.id === entryModule.id
 				);
-				if (!existingIndexModule) {
+				if (!existingIndexedModule) {
 					this.indexedEntryModules.push({ module: entryModule, index: moduleIndex });
 				} else {
-					existingIndexModule.index = Math.min(existingIndexModule.index, moduleIndex);
+					existingIndexedModule.index = Math.min(existingIndexedModule.index, moduleIndex);
 				}
 				moduleIndex++;
 			}
diff --git a/test/chunking-form/samples/entry-aliases/_config.js b/test/chunking-form/samples/entry-aliases/_config.js
new file mode 100644
index 00000000000..b34e645a489
--- /dev/null
+++ b/test/chunking-form/samples/entry-aliases/_config.js
@@ -0,0 +1,13 @@
+module.exports = {
+	description: 'alias module dependency inlining',
+	options: {
+		input: {
+			'main1.js': 'main1.js',
+			'main1-alias.js': 'main1.js',
+			'main2.js': 'main2.js'
+		},
+		output: {
+			entryFileNames: '[name]'
+		}
+	}
+};
diff --git a/test/chunking-form/samples/entry-aliases/_expected/amd/generated-dep.js b/test/chunking-form/samples/entry-aliases/_expected/amd/generated-dep.js
new file mode 100644
index 00000000000..859f8d05dc5
--- /dev/null
+++ b/test/chunking-form/samples/entry-aliases/_expected/amd/generated-dep.js
@@ -0,0 +1,7 @@
+define(['exports'], function (exports) { 'use strict';
+
+	var name = 'name';
+
+	exports.name = name;
+
+});
diff --git a/test/chunking-form/samples/entry-aliases/_expected/amd/main1-alias.js b/test/chunking-form/samples/entry-aliases/_expected/amd/main1-alias.js
new file mode 100644
index 00000000000..e91de314159
--- /dev/null
+++ b/test/chunking-form/samples/entry-aliases/_expected/amd/main1-alias.js
@@ -0,0 +1,9 @@
+define(['exports', './generated-dep'], function (exports, dep) { 'use strict';
+
+
+
+	exports.name = dep.name;
+
+	Object.defineProperty(exports, '__esModule', { value: true });
+
+});
diff --git a/test/chunking-form/samples/entry-aliases/_expected/amd/main1.js b/test/chunking-form/samples/entry-aliases/_expected/amd/main1.js
new file mode 100644
index 00000000000..e91de314159
--- /dev/null
+++ b/test/chunking-form/samples/entry-aliases/_expected/amd/main1.js
@@ -0,0 +1,9 @@
+define(['exports', './generated-dep'], function (exports, dep) { 'use strict';
+
+
+
+	exports.name = dep.name;
+
+	Object.defineProperty(exports, '__esModule', { value: true });
+
+});
diff --git a/test/chunking-form/samples/entry-aliases/_expected/amd/main2.js b/test/chunking-form/samples/entry-aliases/_expected/amd/main2.js
new file mode 100644
index 00000000000..cb9ff3e4b30
--- /dev/null
+++ b/test/chunking-form/samples/entry-aliases/_expected/amd/main2.js
@@ -0,0 +1,5 @@
+define(['./generated-dep'], function (dep) { 'use strict';
+
+	console.log(dep.name);
+
+});
diff --git a/test/chunking-form/samples/entry-aliases/_expected/cjs/generated-dep.js b/test/chunking-form/samples/entry-aliases/_expected/cjs/generated-dep.js
new file mode 100644
index 00000000000..fe90666bb92
--- /dev/null
+++ b/test/chunking-form/samples/entry-aliases/_expected/cjs/generated-dep.js
@@ -0,0 +1,5 @@
+'use strict';
+
+var name = 'name';
+
+exports.name = name;
diff --git a/test/chunking-form/samples/entry-aliases/_expected/cjs/main1-alias.js b/test/chunking-form/samples/entry-aliases/_expected/cjs/main1-alias.js
new file mode 100644
index 00000000000..50083991d6f
--- /dev/null
+++ b/test/chunking-form/samples/entry-aliases/_expected/cjs/main1-alias.js
@@ -0,0 +1,9 @@
+'use strict';
+
+Object.defineProperty(exports, '__esModule', { value: true });
+
+var dep = require('./generated-dep.js');
+
+
+
+exports.name = dep.name;
diff --git a/test/chunking-form/samples/entry-aliases/_expected/cjs/main1.js b/test/chunking-form/samples/entry-aliases/_expected/cjs/main1.js
new file mode 100644
index 00000000000..50083991d6f
--- /dev/null
+++ b/test/chunking-form/samples/entry-aliases/_expected/cjs/main1.js
@@ -0,0 +1,9 @@
+'use strict';
+
+Object.defineProperty(exports, '__esModule', { value: true });
+
+var dep = require('./generated-dep.js');
+
+
+
+exports.name = dep.name;
diff --git a/test/chunking-form/samples/entry-aliases/_expected/cjs/main2.js b/test/chunking-form/samples/entry-aliases/_expected/cjs/main2.js
new file mode 100644
index 00000000000..033c5333a49
--- /dev/null
+++ b/test/chunking-form/samples/entry-aliases/_expected/cjs/main2.js
@@ -0,0 +1,5 @@
+'use strict';
+
+var dep = require('./generated-dep.js');
+
+console.log(dep.name);
diff --git a/test/chunking-form/samples/entry-aliases/_expected/es/generated-dep.js b/test/chunking-form/samples/entry-aliases/_expected/es/generated-dep.js
new file mode 100644
index 00000000000..83809a871df
--- /dev/null
+++ b/test/chunking-form/samples/entry-aliases/_expected/es/generated-dep.js
@@ -0,0 +1,3 @@
+var name = 'name';
+
+export { name as n };
diff --git a/test/chunking-form/samples/entry-aliases/_expected/es/main1-alias.js b/test/chunking-form/samples/entry-aliases/_expected/es/main1-alias.js
new file mode 100644
index 00000000000..a9f98d6ab2d
--- /dev/null
+++ b/test/chunking-form/samples/entry-aliases/_expected/es/main1-alias.js
@@ -0,0 +1 @@
+export { n as name } from './generated-dep.js';
diff --git a/test/chunking-form/samples/entry-aliases/_expected/es/main1.js b/test/chunking-form/samples/entry-aliases/_expected/es/main1.js
new file mode 100644
index 00000000000..a9f98d6ab2d
--- /dev/null
+++ b/test/chunking-form/samples/entry-aliases/_expected/es/main1.js
@@ -0,0 +1 @@
+export { n as name } from './generated-dep.js';
diff --git a/test/chunking-form/samples/entry-aliases/_expected/es/main2.js b/test/chunking-form/samples/entry-aliases/_expected/es/main2.js
new file mode 100644
index 00000000000..fc1b553e541
--- /dev/null
+++ b/test/chunking-form/samples/entry-aliases/_expected/es/main2.js
@@ -0,0 +1,3 @@
+import { n as name } from './generated-dep.js';
+
+console.log(name);
diff --git a/test/chunking-form/samples/entry-aliases/_expected/system/generated-dep.js b/test/chunking-form/samples/entry-aliases/_expected/system/generated-dep.js
new file mode 100644
index 00000000000..0efb4ed6cb1
--- /dev/null
+++ b/test/chunking-form/samples/entry-aliases/_expected/system/generated-dep.js
@@ -0,0 +1,10 @@
+System.register([], function (exports) {
+	'use strict';
+	return {
+		execute: function () {
+
+			var name = exports('n', 'name');
+
+		}
+	};
+});
diff --git a/test/chunking-form/samples/entry-aliases/_expected/system/main1-alias.js b/test/chunking-form/samples/entry-aliases/_expected/system/main1-alias.js
new file mode 100644
index 00000000000..fa0993a1758
--- /dev/null
+++ b/test/chunking-form/samples/entry-aliases/_expected/system/main1-alias.js
@@ -0,0 +1,13 @@
+System.register(['./generated-dep.js'], function (exports) {
+	'use strict';
+	return {
+		setters: [function (module) {
+			exports('name', module.n);
+		}],
+		execute: function () {
+
+
+
+		}
+	};
+});
diff --git a/test/chunking-form/samples/entry-aliases/_expected/system/main1.js b/test/chunking-form/samples/entry-aliases/_expected/system/main1.js
new file mode 100644
index 00000000000..fa0993a1758
--- /dev/null
+++ b/test/chunking-form/samples/entry-aliases/_expected/system/main1.js
@@ -0,0 +1,13 @@
+System.register(['./generated-dep.js'], function (exports) {
+	'use strict';
+	return {
+		setters: [function (module) {
+			exports('name', module.n);
+		}],
+		execute: function () {
+
+
+
+		}
+	};
+});
diff --git a/test/chunking-form/samples/entry-aliases/_expected/system/main2.js b/test/chunking-form/samples/entry-aliases/_expected/system/main2.js
new file mode 100644
index 00000000000..eb344d8e3de
--- /dev/null
+++ b/test/chunking-form/samples/entry-aliases/_expected/system/main2.js
@@ -0,0 +1,14 @@
+System.register(['./generated-dep.js'], function () {
+	'use strict';
+	var name;
+	return {
+		setters: [function (module) {
+			name = module.n;
+		}],
+		execute: function () {
+
+			console.log(name);
+
+		}
+	};
+});
diff --git a/test/chunking-form/samples/entry-aliases/dep.js b/test/chunking-form/samples/entry-aliases/dep.js
new file mode 100644
index 00000000000..4388de88803
--- /dev/null
+++ b/test/chunking-form/samples/entry-aliases/dep.js
@@ -0,0 +1 @@
+export var name = 'name';
diff --git a/test/chunking-form/samples/entry-aliases/main1.js b/test/chunking-form/samples/entry-aliases/main1.js
new file mode 100644
index 00000000000..a5a8872e855
--- /dev/null
+++ b/test/chunking-form/samples/entry-aliases/main1.js
@@ -0,0 +1 @@
+export { name } from './dep.js';
diff --git a/test/chunking-form/samples/entry-aliases/main2.js b/test/chunking-form/samples/entry-aliases/main2.js
new file mode 100644
index 00000000000..70734d97046
--- /dev/null
+++ b/test/chunking-form/samples/entry-aliases/main2.js
@@ -0,0 +1,2 @@
+import { name } from './dep.js';
+console.log(name);
diff --git a/test/chunking-form/samples/entry-point-without-own-code/_expected/amd/m1.js b/test/chunking-form/samples/entry-point-without-own-code/_expected/amd/m1.js
index b95c6ca797c..8c152a68567 100644
--- a/test/chunking-form/samples/entry-point-without-own-code/_expected/amd/m1.js
+++ b/test/chunking-form/samples/entry-point-without-own-code/_expected/amd/m1.js
@@ -1,4 +1,4 @@
-define(['exports', './m2', './generated-m1'], function (exports, m2, m1) { 'use strict';
+define(['exports', './m2'], function (exports, m2) { 'use strict';
 
 
 
diff --git a/test/chunking-form/samples/entry-point-without-own-code/_expected/cjs/m1.js b/test/chunking-form/samples/entry-point-without-own-code/_expected/cjs/m1.js
index 9b97781f444..f1de24e56e2 100644
--- a/test/chunking-form/samples/entry-point-without-own-code/_expected/cjs/m1.js
+++ b/test/chunking-form/samples/entry-point-without-own-code/_expected/cjs/m1.js
@@ -3,7 +3,6 @@
 Object.defineProperty(exports, '__esModule', { value: true });
 
 var m2 = require('./m2.js');
-require('./generated-m1.js');
 
 
 
diff --git a/test/chunking-form/samples/entry-point-without-own-code/_expected/es/m1.js b/test/chunking-form/samples/entry-point-without-own-code/_expected/es/m1.js
index a0461824120..2c2fbbf6215 100644
--- a/test/chunking-form/samples/entry-point-without-own-code/_expected/es/m1.js
+++ b/test/chunking-form/samples/entry-point-without-own-code/_expected/es/m1.js
@@ -1,2 +1 @@
 export { default as m2 } from './m2.js';
-import './generated-m1.js';
diff --git a/test/chunking-form/samples/entry-point-without-own-code/_expected/system/m1.js b/test/chunking-form/samples/entry-point-without-own-code/_expected/system/m1.js
index 5f74314c76e..f9644287173 100644
--- a/test/chunking-form/samples/entry-point-without-own-code/_expected/system/m1.js
+++ b/test/chunking-form/samples/entry-point-without-own-code/_expected/system/m1.js
@@ -1,9 +1,9 @@
-System.register(['./m2.js', './generated-m1.js'], function (exports) {
+System.register(['./m2.js'], function (exports) {
 	'use strict';
 	return {
 		setters: [function (module) {
 			exports('m2', module.default);
-		}, function () {}],
+		}],
 		execute: function () {
 
 
diff --git a/test/form/samples/prune-pure-unused-import-array/_config.js b/test/form/samples/prune-pure-unused-import-array/_config.js
new file mode 100644
index 00000000000..4d9035fa705
--- /dev/null
+++ b/test/form/samples/prune-pure-unused-import-array/_config.js
@@ -0,0 +1,10 @@
+module.exports = {
+	description: 'prunes pure unused external imports ([#1352])',
+	options: {
+		external: ['external', 'other'],
+		treeshake: { moduleSideEffects: ['other'] },
+		output: {
+			globals: { other: 'other' }
+		}
+	}
+};
diff --git a/test/form/samples/prune-pure-unused-import-array/_expected/amd.js b/test/form/samples/prune-pure-unused-import-array/_expected/amd.js
new file mode 100644
index 00000000000..f02c330d436
--- /dev/null
+++ b/test/form/samples/prune-pure-unused-import-array/_expected/amd.js
@@ -0,0 +1,5 @@
+define(['other'], function (other) { 'use strict';
+
+
+
+});
diff --git a/test/form/samples/prune-pure-unused-import-array/_expected/cjs.js b/test/form/samples/prune-pure-unused-import-array/_expected/cjs.js
new file mode 100644
index 00000000000..d4c04157586
--- /dev/null
+++ b/test/form/samples/prune-pure-unused-import-array/_expected/cjs.js
@@ -0,0 +1,4 @@
+'use strict';
+
+require('other');
+
diff --git a/test/form/samples/prune-pure-unused-import-array/_expected/es.js b/test/form/samples/prune-pure-unused-import-array/_expected/es.js
new file mode 100644
index 00000000000..4c6a1dd1289
--- /dev/null
+++ b/test/form/samples/prune-pure-unused-import-array/_expected/es.js
@@ -0,0 +1 @@
+import 'other';
diff --git a/test/form/samples/prune-pure-unused-import-array/_expected/iife.js b/test/form/samples/prune-pure-unused-import-array/_expected/iife.js
new file mode 100644
index 00000000000..8435bdceb01
--- /dev/null
+++ b/test/form/samples/prune-pure-unused-import-array/_expected/iife.js
@@ -0,0 +1,6 @@
+(function (other) {
+	'use strict';
+
+
+
+}(other));
diff --git a/test/form/samples/prune-pure-unused-import-array/_expected/system.js b/test/form/samples/prune-pure-unused-import-array/_expected/system.js
new file mode 100644
index 00000000000..44f1ac2d34d
--- /dev/null
+++ b/test/form/samples/prune-pure-unused-import-array/_expected/system.js
@@ -0,0 +1,11 @@
+System.register(['other'], function () {
+	'use strict';
+	return {
+		setters: [function () {}],
+		execute: function () {
+
+
+
+		}
+	};
+});
diff --git a/test/form/samples/prune-pure-unused-import-array/_expected/umd.js b/test/form/samples/prune-pure-unused-import-array/_expected/umd.js
new file mode 100644
index 00000000000..481b0e068ab
--- /dev/null
+++ b/test/form/samples/prune-pure-unused-import-array/_expected/umd.js
@@ -0,0 +1,9 @@
+(function (global, factory) {
+	typeof exports === 'object' && typeof module !== 'undefined' ? factory(require('other')) :
+	typeof define === 'function' && define.amd ? define(['other'], factory) :
+	(global = global || self, factory(global.other));
+}(this, (function (other) { 'use strict';
+
+
+
+})));
diff --git a/test/form/samples/prune-pure-unused-import-array/main.js b/test/form/samples/prune-pure-unused-import-array/main.js
new file mode 100644
index 00000000000..558f459bd2a
--- /dev/null
+++ b/test/form/samples/prune-pure-unused-import-array/main.js
@@ -0,0 +1,7 @@
+import { unused } from 'external';
+import { notused } from 'other';
+
+function alsoUnused () {
+	unused();
+	notused();
+}
diff --git a/test/form/samples/prune-pure-unused-import-function/_config.js b/test/form/samples/prune-pure-unused-import-function/_config.js
new file mode 100644
index 00000000000..c682d7c9920
--- /dev/null
+++ b/test/form/samples/prune-pure-unused-import-function/_config.js
@@ -0,0 +1,11 @@
+module.exports = {
+	description: 'prunes pure unused external imports ([#1352])',
+	expectedWarnings: ['EMPTY_BUNDLE'],
+	options: {
+		external: ['external', 'other'],
+		treeshake: { moduleSideEffects: id => id !== 'external' },
+		output: {
+			globals: { other: 'other' }
+		}
+	}
+};
diff --git a/test/form/samples/prune-pure-unused-import-function/_expected/amd.js b/test/form/samples/prune-pure-unused-import-function/_expected/amd.js
new file mode 100644
index 00000000000..f02c330d436
--- /dev/null
+++ b/test/form/samples/prune-pure-unused-import-function/_expected/amd.js
@@ -0,0 +1,5 @@
+define(['other'], function (other) { 'use strict';
+
+
+
+});
diff --git a/test/form/samples/prune-pure-unused-import-function/_expected/cjs.js b/test/form/samples/prune-pure-unused-import-function/_expected/cjs.js
new file mode 100644
index 00000000000..d4c04157586
--- /dev/null
+++ b/test/form/samples/prune-pure-unused-import-function/_expected/cjs.js
@@ -0,0 +1,4 @@
+'use strict';
+
+require('other');
+
diff --git a/test/form/samples/prune-pure-unused-import-function/_expected/es.js b/test/form/samples/prune-pure-unused-import-function/_expected/es.js
new file mode 100644
index 00000000000..4c6a1dd1289
--- /dev/null
+++ b/test/form/samples/prune-pure-unused-import-function/_expected/es.js
@@ -0,0 +1 @@
+import 'other';
diff --git a/test/form/samples/prune-pure-unused-import-function/_expected/iife.js b/test/form/samples/prune-pure-unused-import-function/_expected/iife.js
new file mode 100644
index 00000000000..8435bdceb01
--- /dev/null
+++ b/test/form/samples/prune-pure-unused-import-function/_expected/iife.js
@@ -0,0 +1,6 @@
+(function (other) {
+	'use strict';
+
+
+
+}(other));
diff --git a/test/form/samples/prune-pure-unused-import-function/_expected/system.js b/test/form/samples/prune-pure-unused-import-function/_expected/system.js
new file mode 100644
index 00000000000..44f1ac2d34d
--- /dev/null
+++ b/test/form/samples/prune-pure-unused-import-function/_expected/system.js
@@ -0,0 +1,11 @@
+System.register(['other'], function () {
+	'use strict';
+	return {
+		setters: [function () {}],
+		execute: function () {
+
+
+
+		}
+	};
+});
diff --git a/test/form/samples/prune-pure-unused-import-function/_expected/umd.js b/test/form/samples/prune-pure-unused-import-function/_expected/umd.js
new file mode 100644
index 00000000000..481b0e068ab
--- /dev/null
+++ b/test/form/samples/prune-pure-unused-import-function/_expected/umd.js
@@ -0,0 +1,9 @@
+(function (global, factory) {
+	typeof exports === 'object' && typeof module !== 'undefined' ? factory(require('other')) :
+	typeof define === 'function' && define.amd ? define(['other'], factory) :
+	(global = global || self, factory(global.other));
+}(this, (function (other) { 'use strict';
+
+
+
+})));
diff --git a/test/form/samples/prune-pure-unused-import-function/main.js b/test/form/samples/prune-pure-unused-import-function/main.js
new file mode 100644
index 00000000000..558f459bd2a
--- /dev/null
+++ b/test/form/samples/prune-pure-unused-import-function/main.js
@@ -0,0 +1,7 @@
+import { unused } from 'external';
+import { notused } from 'other';
+
+function alsoUnused () {
+	unused();
+	notused();
+}
diff --git a/test/form/samples/prune-pure-unused-import/_config.js b/test/form/samples/prune-pure-unused-import/_config.js
new file mode 100644
index 00000000000..a3236e50639
--- /dev/null
+++ b/test/form/samples/prune-pure-unused-import/_config.js
@@ -0,0 +1,8 @@
+module.exports = {
+	description: 'prunes pure unused external imports ([#1352])',
+	expectedWarnings: ['EMPTY_BUNDLE'],
+	options: {
+		external: ['external', 'other'],
+		treeshake: { moduleSideEffects: 'no-external' }
+	}
+};
diff --git a/test/form/samples/prune-pure-unused-import/_expected/amd.js b/test/form/samples/prune-pure-unused-import/_expected/amd.js
new file mode 100644
index 00000000000..f9f8229aa40
--- /dev/null
+++ b/test/form/samples/prune-pure-unused-import/_expected/amd.js
@@ -0,0 +1,5 @@
+define(function () { 'use strict';
+
+
+
+});
diff --git a/test/form/samples/prune-pure-unused-import/_expected/cjs.js b/test/form/samples/prune-pure-unused-import/_expected/cjs.js
new file mode 100644
index 00000000000..eb109abbed0
--- /dev/null
+++ b/test/form/samples/prune-pure-unused-import/_expected/cjs.js
@@ -0,0 +1,2 @@
+'use strict';
+
diff --git a/test/form/samples/prune-pure-unused-import/_expected/es.js b/test/form/samples/prune-pure-unused-import/_expected/es.js
new file mode 100644
index 00000000000..8b137891791
--- /dev/null
+++ b/test/form/samples/prune-pure-unused-import/_expected/es.js
@@ -0,0 +1 @@
+
diff --git a/test/form/samples/prune-pure-unused-import/_expected/iife.js b/test/form/samples/prune-pure-unused-import/_expected/iife.js
new file mode 100644
index 00000000000..43ef5426880
--- /dev/null
+++ b/test/form/samples/prune-pure-unused-import/_expected/iife.js
@@ -0,0 +1,6 @@
+(function () {
+	'use strict';
+
+
+
+}());
diff --git a/test/form/samples/prune-pure-unused-import/_expected/system.js b/test/form/samples/prune-pure-unused-import/_expected/system.js
new file mode 100644
index 00000000000..a702f2b06ef
--- /dev/null
+++ b/test/form/samples/prune-pure-unused-import/_expected/system.js
@@ -0,0 +1,10 @@
+System.register([], function () {
+	'use strict';
+	return {
+		execute: function () {
+
+
+
+		}
+	};
+});
diff --git a/test/form/samples/prune-pure-unused-import/_expected/umd.js b/test/form/samples/prune-pure-unused-import/_expected/umd.js
new file mode 100644
index 00000000000..8bf6301d469
--- /dev/null
+++ b/test/form/samples/prune-pure-unused-import/_expected/umd.js
@@ -0,0 +1,8 @@
+(function (factory) {
+	typeof define === 'function' && define.amd ? define(factory) :
+	factory();
+}((function () { 'use strict';
+
+
+
+})));
diff --git a/test/form/samples/prune-pure-unused-import/main.js b/test/form/samples/prune-pure-unused-import/main.js
new file mode 100644
index 00000000000..ce3e0cb6298
--- /dev/null
+++ b/test/form/samples/prune-pure-unused-import/main.js
@@ -0,0 +1,5 @@
+import { unused } from 'external';
+
+function alsoUnused () {
+	unused();
+}
diff --git a/test/function/samples/bundle-facade-order/_config.js b/test/function/samples/bundle-facade-order/_config.js
new file mode 100644
index 00000000000..b202a1b5733
--- /dev/null
+++ b/test/function/samples/bundle-facade-order/_config.js
@@ -0,0 +1,27 @@
+const assert = require('assert');
+
+module.exports = {
+	description: 'respects the order of entry points when there are additional facades for chunks',
+	options: {
+		input: {
+			main: 'main',
+			'main-alias': 'main',
+			other: 'other'
+		},
+		plugins: {
+			generateBundle(options, bundle) {
+				assert.deepStrictEqual(
+					Object.keys(bundle).map(id => [id, bundle[id].code]),
+					[
+						['main.js', "'use strict';\n\nvar main = 'main1';\n\nmodule.exports = main;\n"],
+						['other.js', "'use strict';\n\nvar other = 'main2';\n\nmodule.exports = other;\n"],
+						[
+							'main-alias.js',
+							"'use strict';\n\nvar main = require('./main.js');\n\n\n\nmodule.exports = main;\n"
+						]
+					]
+				);
+			}
+		}
+	}
+};
diff --git a/test/function/samples/bundle-facade-order/main.js b/test/function/samples/bundle-facade-order/main.js
new file mode 100644
index 00000000000..b217470a5f7
--- /dev/null
+++ b/test/function/samples/bundle-facade-order/main.js
@@ -0,0 +1 @@
+export default 'main1';
diff --git a/test/function/samples/bundle-facade-order/other.js b/test/function/samples/bundle-facade-order/other.js
new file mode 100644
index 00000000000..cb63f9eba57
--- /dev/null
+++ b/test/function/samples/bundle-facade-order/other.js
@@ -0,0 +1 @@
+export default 'main2';
diff --git a/test/function/samples/facade-reexports/_config.js b/test/function/samples/facade-reexports/_config.js
new file mode 100644
index 00000000000..d3c1009516f
--- /dev/null
+++ b/test/function/samples/facade-reexports/_config.js
@@ -0,0 +1,16 @@
+const assert = require('assert');
+
+module.exports = {
+	description:
+		'handles reexports when creating a facade chunk and transitive dependencies are not hoisted',
+	options: {
+		input: ['main', 'other'],
+		external: 'external',
+		output: { hoistTransitiveImports: false }
+	},
+	async exports(exports) {
+		assert.strictEqual(exports.other, 'other');
+		assert.strictEqual(exports.external, true);
+		assert.strictEqual(await exports.dynamic(), 'liblib');
+	}
+};
diff --git a/test/function/samples/facade-reexports/dynamic.js b/test/function/samples/facade-reexports/dynamic.js
new file mode 100644
index 00000000000..02aaca499c0
--- /dev/null
+++ b/test/function/samples/facade-reexports/dynamic.js
@@ -0,0 +1,2 @@
+import { lib } from './lib';
+export const dynamic = lib;
\ No newline at end of file
diff --git a/test/function/samples/facade-reexports/lib.js b/test/function/samples/facade-reexports/lib.js
new file mode 100644
index 00000000000..da7d8c96654
--- /dev/null
+++ b/test/function/samples/facade-reexports/lib.js
@@ -0,0 +1 @@
+export const lib = 'lib';
diff --git a/test/function/samples/facade-reexports/main.js b/test/function/samples/facade-reexports/main.js
new file mode 100644
index 00000000000..e84395737bd
--- /dev/null
+++ b/test/function/samples/facade-reexports/main.js
@@ -0,0 +1,4 @@
+import { lib } from './lib';
+export const dynamic = () => import('./dynamic').then(({ dynamic }) => dynamic + lib);
+export { other } from './other';
+export { external } from 'external';
diff --git a/test/function/samples/facade-reexports/other.js b/test/function/samples/facade-reexports/other.js
new file mode 100644
index 00000000000..46e8ba3a3e2
--- /dev/null
+++ b/test/function/samples/facade-reexports/other.js
@@ -0,0 +1 @@
+export const other = 'other'
\ No newline at end of file