Add a unit test that repros issue microsoft#2014

Author: octogonz

build-tests/api-extractor-lib2-test/etc/api-extractor-lib2-test.api.md

@@ -4,6 +4,12 @@
 
 ```ts
 
+// @public (undocumented)
+class DefaultClass {
+}
+
+export default DefaultClass;
+
 // @public (undocumented)
 export class Lib2Class {
 }

build-tests/api-extractor-lib2-test/src/index.ts

@@ -15,3 +15,6 @@ export class Lib2Class {}
 
 /** @alpha */
 export interface Lib2Interface {}
+
+/** @public */
+export default class DefaultClass {}

build-tests/api-extractor-scenarios/config/build-config.json

@@ -19,6 +19,7 @@
     "exportEquals",
     "exportImportedExternal",
     "exportImportedExternal2",
+    "exportImportedExternalDefault",
     "exportStar",
     "exportStar2",
     "exportStar3",

build-tests/api-extractor-scenarios/etc/test-outputs/exportImportedExternalDefault/api-extractor-scenarios.api.json

@@ -0,0 +1,49 @@
+{
+  "metadata": {
+    "toolPackage": "@microsoft/api-extractor",
+    "toolVersion": "[test mode]",
+    "schemaVersion": 1003,
+    "oldestForwardsCompatibleVersion": 1001
+  },
+  "kind": "Package",
+  "canonicalReference": "api-extractor-scenarios!",
+  "docComment": "",
+  "name": "api-extractor-scenarios",
+  "members": [
+    {
+      "kind": "EntryPoint",
+      "canonicalReference": "api-extractor-scenarios!",
+      "name": "",
+      "members": [
+        {
+          "kind": "Class",
+          "canonicalReference": "api-extractor-scenarios!Child:class",
+          "docComment": "/**\n * @public\n */\n",
+          "excerptTokens": [
+            {
+              "kind": "Content",
+              "text": "export declare class Child extends "
+            },
+            {
+              "kind": "Reference",
+              "text": "Base",
+              "canonicalReference": "api-extractor-lib2-test!~DefaultClass:class"
+            },
+            {
+              "kind": "Content",
+              "text": " "
+            }
+          ],
+          "releaseTag": "Public",
+          "name": "Child",
+          "members": [],
+          "extendsTokenRange": {
+            "startIndex": 1,
+            "endIndex": 3
+          },
+          "implementsTokenRanges": []
+        }
+      ]
+    }
+  ]
+}

build-tests/api-extractor-scenarios/etc/test-outputs/exportImportedExternalDefault/api-extractor-scenarios.api.md

@@ -0,0 +1,21 @@
+## API Report File for "api-extractor-scenarios"
+
+> Do not edit this file. It is a report generated by [API Extractor](https://api-extractor.com/).
+
+```ts
+
+import { default } from 'api-extractor-lib2-test';
+import { Lib2Class } from 'api-extractor-lib2-test';
+
+// @public (undocumented)
+export class Child extends default {
+}
+
+export default default;
+
+export { Lib2Class }
+
+
+// (No @packageDocumentation comment for this package)
+
+```

build-tests/api-extractor-scenarios/etc/test-outputs/exportImportedExternalDefault/rollup.d.ts

@@ -0,0 +1,10 @@
+import { default } from 'api-extractor-lib2-test';
+import { Lib2Class } from 'api-extractor-lib2-test';
+
+/** @public */
+export declare class Child extends default {
+}
+export default default;
+export { Lib2Class }
+
+export { }

build-tests/api-extractor-scenarios/src/exportImportedExternalDefault/importer.ts

@@ -0,0 +1,4 @@
+// Copyright (c) Microsoft Corporation. All rights reserved. Licensed under the MIT license.
+// See LICENSE in the project root for license information.
+
+export { default, Lib2Class } from 'api-extractor-lib2-test';

build-tests/api-extractor-scenarios/src/exportImportedExternalDefault/index.ts

@@ -0,0 +1,9 @@
+// Copyright (c) Microsoft Corporation. All rights reserved. Licensed under the MIT license.
+// See LICENSE in the project root for license information.
+
+export { default, Lib2Class } from './importer';
+
+import { default as Base } from 'api-extractor-lib2-test';
+
+/** @public */
+export class Child extends Base {}