Adding more tests and minor changes in code (#21)

* added cleanup job checks, started testing constants file

* added getVolumeClaimName test

* added write entrypoint tests

* added tests around k8s utils

* fixed new regexp

* added tests around runner instance label

* 100% test coverage of constants

packages/k8s/tests/cleanup-job-test.ts

@@ -1,4 +1,7 @@
+import * as k8s from '@kubernetes/client-node'
 import { cleanupJob, prepareJob } from '../src/hooks'
+import { RunnerInstanceLabel } from '../src/hooks/constants'
+import { namespace } from '../src/k8s'
 import { TestHelper } from './test-setup'
 
 let testHelper: TestHelper
@@ -13,10 +16,50 @@ describe('Cleanup Job', () => {
     )
     await prepareJob(prepareJobData.args, prepareJobOutputFilePath)
   })
-  it('should not throw', async () => {
-    await expect(cleanupJob()).resolves.not.toThrow()
-  })
+
   afterEach(async () => {
     await testHelper.cleanup()
   })
+
+  it('should not throw', async () => {
+    await expect(cleanupJob()).resolves.not.toThrow()
+  })
+
+  it('should have no runner linked pods running', async () => {
+    await cleanupJob()
+    const kc = new k8s.KubeConfig()
+
+    kc.loadFromDefault()
+    const k8sApi = kc.makeApiClient(k8s.CoreV1Api)
+
+    const podList = await k8sApi.listNamespacedPod(
+      namespace(),
+      undefined,
+      undefined,
+      undefined,
+      undefined,
+      new RunnerInstanceLabel().toString()
+    )
+
+    expect(podList.body.items.length).toBe(0)
+  })
+
+  it('should have no runner linked secrets', async () => {
+    await cleanupJob()
+    const kc = new k8s.KubeConfig()
+
+    kc.loadFromDefault()
+    const k8sApi = kc.makeApiClient(k8s.CoreV1Api)
+
+    const secretList = await k8sApi.listNamespacedSecret(
+      namespace(),
+      undefined,
+      undefined,
+      undefined,
+      undefined,
+      new RunnerInstanceLabel().toString()
+    )
+
+    expect(secretList.body.items.length).toBe(0)
+  })
 })