add test

packages/dashboard-backend/src/devworkspaceClient/services/__tests__/fixtures/kubeconfig.yaml

@@ -0,0 +1,20 @@
+apiVersion: v1
+kind: Config
+clusters:
+  - name: inCluster
+    cluster:
+      server: https://0.0.0.0:443
+      certificate-authority: /var/run/secrets/kubernetes.io/serviceaccount/ca.crt
+      insecure-skip-tls-verify: false
+users:
+  - name: developer
+    user:
+      token: token
+contexts:
+  - name: logged-user
+    context:
+      user: developer
+      cluster: inCluster
+      name: logged-user
+preferences: {}
+current-context: logged-user

packages/dashboard-backend/src/devworkspaceClient/services/__tests__/kubeConfigApi.spec.ts

@@ -14,6 +14,7 @@
 
 import * as mockClient from '@kubernetes/client-node';
 import { CoreV1Api, V1PodList } from '@kubernetes/client-node';
+import fs from 'fs';
 
 import * as helper from '@/devworkspaceClient/services/helpers/exec';
 import { KubeConfigApiService } from '@/devworkspaceClient/services/kubeConfigApi';
@@ -28,7 +29,7 @@ const mockExecPrintenvHome = jest.fn().mockReturnValue({
   stdError: '',
 });
 
-const mockExecCatKubeConfig = jest.fn().mockReturnValue({
+let mockExecCatKubeConfig = jest.fn().mockReturnValue({
   stdOut: '',
   stdError: '',
 });
@@ -65,6 +66,9 @@ const config = JSON.stringify({
   apiVersion: 'v1',
   kind: 'Config',
   'current-context': 'logged-user',
+  contexts: [],
+  clusters: [],
+  users: [],
 });
 
 describe('Kubernetes Config API Service', () => {
@@ -146,6 +150,23 @@ describe('Kubernetes Config API Service', () => {
       expect.anything(),
     );
   });
+  test('should merge configs', async () => {
+    const configContent = fs.readFileSync(__dirname + '/fixtures/kubeconfig.yaml', 'utf-8');
+    mockExecCatKubeConfig = jest.fn().mockReturnValue({
+      stdOut: configContent,
+      stdError: '',
+    });
+    await kubeConfigService.injectKubeConfig(namespace, 'wksp-id');
+
+    expect(spyExec).toHaveBeenNthCalledWith(
+      5,
+      workspaceName,
+      namespace,
+      containerName,
+      ['sh', '-c', `echo '${configContent}' > ${kubeConfigDir}/config`],
+      expect.anything(),
+    );
+  });
 });
 
 function buildListNamespacedPod(): { body: V1PodList } {