Disable function statistics on Greenplum. Fixes #3176

web/regression/javascript/misc/statistics/statistics_spec.js

@@ -0,0 +1,36 @@
+//////////////////////////////////////////////////////////////////////////
+//
+// pgAdmin 4 - PostgreSQL Tools
+//
+// Copyright (C) 2013 - 2018, The pgAdmin Development Team
+// This software is released under the PostgreSQL Licence
+//
+//////////////////////////////////////////////////////////////////////////
+
+import {nodeHasStatistics} from "../../../../pgadmin/static/js/misc/statistics/statistics";
+
+describe('#nodeHasStatistics', () => {
+  describe('when node hasStatistics is not a function', () => {
+    it('return the value of hasStatistics', () => {
+      const node = {
+        hasStatistics: true,
+      };
+      expect(nodeHasStatistics(node, {})).toBe(true);
+    });
+  });
+
+  describe('when node hasStatistics is a function', () => {
+    describe('when the function returns true', () => {
+      it('returns true', () => {
+        const node = {
+          hasStatistics: () => true,
+          getTreeNodeHierarchy: jasmine.createSpy(),
+        };
+        const item = {};
+
+        expect(nodeHasStatistics(node, item)).toBe(true);
+        expect(node.getTreeNodeHierarchy).toHaveBeenCalledWith(item);
+      });
+    });
+  });
+});