test: - Show that resetting global LinkResolver affects existing Links

Author: claremacrae

tests/Task/LinkResolver.test.ts

@@ -44,4 +44,16 @@ describe('LinkResolver', () => {
         const link2 = new Link(rawLink, link_in_file_body.filePath);
         expect(link2.destinationPath).toBeNull();
     });
+
+    it('resetting global instance affects pre-existing links', () => {
+        const globalInstance = LinkResolver.getInstance();
+        globalInstance.setGetFirstLinkpathDestFn(() => 'From Global Instance.md');
+
+        const link1 = new Link(rawLink, link_in_file_body.filePath);
+        expect(link1.destinationPath).toEqual('From Global Instance.md');
+
+        globalInstance.resetGetFirstLinkpathDestFn();
+
+        expect(link1.destinationPath).toBeNull();
+    });
 });