test: add tests for workspace util

Signed-off-by: tygao <tygao@amazon.com>

src/plugins/workspace/public/components/utils/workspace.test.ts

@@ -0,0 +1,73 @@
+/*
+ * Copyright OpenSearch Contributors
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+import { switchWorkspace, updateWorkspace } from './workspace';
+import { formatUrlWithWorkspaceId } from '../../../../../core/public/utils';
+jest.mock('../../../../../core/public/utils');
+
+import { coreMock } from '../../../../../core/public/mocks';
+
+const coreStartMock = coreMock.createStart();
+
+window = Object.create(window);
+const defaultUrl = 'localhost://';
+
+describe('workspace utils', () => {
+  describe('switchWorkspace', () => {
+    it('should redirect if newUrl is returned', () => {
+      Object.defineProperty(window, 'location', {
+        value: {
+          href: defaultUrl,
+        },
+        writable: true,
+      });
+      // @ts-ignore
+      formatUrlWithWorkspaceId.mockImplementation(() => 'new_url');
+      switchWorkspace({ application: coreStartMock.application, http: coreStartMock.http }, '');
+      expect(window.location.href).toEqual('new_url');
+    });
+
+    it('should not redirect if newUrl is not returned', () => {
+      Object.defineProperty(window, 'location', {
+        value: {
+          href: defaultUrl,
+        },
+        writable: true,
+      });
+      // @ts-ignore
+      formatUrlWithWorkspaceId.mockImplementation(() => '');
+      switchWorkspace({ application: coreStartMock.application, http: coreStartMock.http }, '');
+      expect(window.location.href).toEqual(defaultUrl);
+    });
+  });
+
+  describe('updateWorkspace', () => {
+    it('should redirect if newUrl is returned', () => {
+      Object.defineProperty(window, 'location', {
+        value: {
+          href: defaultUrl,
+        },
+        writable: true,
+      });
+      // @ts-ignore
+      formatUrlWithWorkspaceId.mockImplementation(() => 'new_url');
+      updateWorkspace({ application: coreStartMock.application, http: coreStartMock.http }, '');
+      expect(window.location.href).toEqual('new_url');
+    });
+
+    it('should not redirect if newUrl is not returned', () => {
+      Object.defineProperty(window, 'location', {
+        value: {
+          href: defaultUrl,
+        },
+        writable: true,
+      });
+      // @ts-ignore
+      formatUrlWithWorkspaceId.mockImplementation(() => '');
+      updateWorkspace({ application: coreStartMock.application, http: coreStartMock.http }, '');
+      expect(window.location.href).toEqual(defaultUrl);
+    });
+  });
+});