Support for external tables in GPDB. Fixes #3168

web/regression/javascript/browser/server_groups/servers/databases/external_tables/external_tables_spec.js

@@ -0,0 +1,56 @@
+/////////////////////////////////////////////////////////////
+//
+// pgAdmin 4 - PostgreSQL Tools
+//
+// Copyright (C) 2013 - 2018, The pgAdmin Development Team
+// This software is released under the PostgreSQL Licence
+//
+//////////////////////////////////////////////////////////////
+
+import {initialize} from 'sources/browser/server_groups/servers/databases/external_tables/external_tables';
+
+describe('when external tables is loaded', () => {
+  let pgBrowser;
+  let gettext;
+  let result;
+  beforeEach(() => {
+    pgBrowser = {
+      Nodes: {},
+    };
+    pgBrowser.Collection = jasmine.createSpyObj('Collection', ['extend']);
+    pgBrowser.Node = jasmine.createSpyObj('Node', ['extend', 'Model']);
+    pgBrowser.Node.Model = jasmine.createSpyObj('Model', ['extend']);
+    pgBrowser.Collection.extend.and.returnValue('extended object');
+    pgBrowser.Node.extend.and.returnValue('extended node object');
+    gettext = jasmine.createSpy('gettext').and.callFake((text) => text);
+  });
+
+  describe('when external tables is already defined', () => {
+    beforeEach(() => {
+      pgBrowser.Nodes['coll-external_table'] = {};
+      result = initialize(pgBrowser, gettext);
+    });
+
+    it('does not reinitialize it', () => {
+      expect(pgBrowser.Collection.extend).not.toHaveBeenCalled();
+    });
+
+    it('returns the not updated version of pgBrowser', () => {
+      expect(result).toBe(pgBrowser);
+    });
+  });
+
+  describe('when external tables is not defined', () => {
+    beforeEach(() => {
+      result = initialize(pgBrowser, gettext);
+    });
+
+    it('initializes "coll-external_tables"', () => {
+      expect(pgBrowser.Collection.extend).toHaveBeenCalled();
+    });
+
+    it('returns the updated version of pgBrowser', () => {
+      expect(result.Nodes['coll-external_table']).not.toBeUndefined();
+    });
+  });
+});