add unit test for catalogClusterLocator

Signed-off-by: Ruben Vallejo <rvallejo@gmail.com>

plugins/kubernetes-backend/src/cluster-locator/CatalogClusterLocator.test.ts

@@ -18,39 +18,66 @@ import '@backstage/backend-common';
 import { CatalogClusterLocator } from './CatalogClusterLocator';
 import { CatalogApi } from '@backstage/catalog-client';
 
+const mockCatalogApi = {
+  getEntityByRef: jest.fn(),
+  getEntities: async () => ({
+    items: [
+      {
+        apiVersion: 'version',
+        kind: 'User',
+        metadata: {
+          annotations: {
+            'kubernetes.io/api-server': 'https://apiserver.com',
+            'kubernetes.io/api-server-certificate-authority': 'caData',
+            'kubernetes.io/auth-provider': 'aws',
+            'kubernetes.io/oidc-token-provider': 'google',
+            'kubernetes.io/skip-metrics-lookup': 'true',
+            'kubernetes.io/skip-tls-verify': 'true',
+            'kubernetes.io/dashboard-url': 'my-url',
+            'kubernetes.io/dashboard-app': 'my-app',
+          },
+          name: 'owned',
+          namespace: 'default',
+        },
+      },
+    ],
+  }),
+} as unknown as CatalogApi;
+
 describe('CatalogClusterLocator', () => {
-  it('empty clusters returns empty cluster details', async () => {
-    const mockCatalogApi = {
+  it('returns empty cluster details when the cluster is empty', async () => {
+    const emptyMockCatalogApi = {
       getEntityByRef: jest.fn(),
       getEntities: async () => ({
-        items: [
-          {
-            apiVersion: 'version',
-            kind: 'User',
-            metadata: {
-              annotations: {
-                'kubernetes.io/api-server': 'https://apiserver.com',
-                'kubernetes.io/api-server-certificate-authority': 'caData',
-                'kubernetes.io/auth-provider': 'aws',
-              },
-              name: 'owned',
-              namespace: 'default',
-            },
-          },
-        ],
+        items: [],
       }),
     } as Partial<CatalogApi> as CatalogApi;
 
-    const sut = CatalogClusterLocator.fromConfig(mockCatalogApi);
+    const clusterSupplier =
+      CatalogClusterLocator.fromConfig(emptyMockCatalogApi);
 
-    const result = await sut.getClusters();
+    const result = await clusterSupplier.getClusters();
+
+    expect(result).toHaveLength(0);
+    expect(result).toStrictEqual([]);
+  });
+
+  it('returns the cluster details provided by annotations', async () => {
+    const clusterSupplier = CatalogClusterLocator.fromConfig(mockCatalogApi);
+
+    const result = await clusterSupplier.getClusters();
 
     expect(result).toHaveLength(1);
-    expect(result[0]).toMatchObject({
+    expect(result[0]).toStrictEqual({
       name: 'owned',
       url: 'https://apiserver.com',
       caData: 'caData',
       authProvider: 'aws',
+      oidcTokenProvider: 'google',
+      skipMetricsLookup: true,
+      skipTLSVerify: true,
+      dashboardUrl: 'my-url',
+      dashboardApp: 'my-app',
     });
   });
 });