Blue/Green Refactor (#229)

* fresh new branch

* Added coverage to gitignore

Signed-off-by: Jaiveer Katariya <jaiveerkatariya@Jaiveers-MBP.lan>

* reverted package-lock.json

Signed-off-by: Jaiveer Katariya <jaiveerkatariya@Jaiveers-MBP.lan>
Co-authored-by: Jaiveer Katariya <jaiveerkatariya@Jaiveers-MBP.lan>

src/strategyHelpers/blueGreen/serviceBlueGreenHelper.test.ts

@@ -0,0 +1,65 @@
+import * as core from '@actions/core'
+import {
+   BLUE_GREEN_VERSION_LABEL,
+   getManifestObjects,
+   GREEN_LABEL_VALUE
+} from './blueGreenHelper'
+import * as bgHelper from './blueGreenHelper'
+import {Kubectl} from '../../types/kubectl'
+import {
+   getServiceSpecLabel,
+   getUpdatedBlueGreenService,
+   validateServicesState
+} from './serviceBlueGreenHelper'
+
+let testObjects
+const ingressFilepath = ['test/unit/manifests/test-ingress-new.yml']
+jest.mock('../../types/kubectl')
+const kubectl = new Kubectl('')
+
+describe('blue/green service helper tests', () => {
+   beforeEach(() => {
+      //@ts-ignore
+      Kubectl.mockClear()
+      testObjects = getManifestObjects(ingressFilepath)
+   })
+
+   test('getUpdatedBlueGreenService', () => {
+      const newService = getUpdatedBlueGreenService(
+         testObjects.serviceEntityList[0],
+         GREEN_LABEL_VALUE
+      )
+      expect(newService.metadata.labels[BLUE_GREEN_VERSION_LABEL]).toBe(
+         GREEN_LABEL_VALUE
+      )
+      expect(newService.spec.selector[BLUE_GREEN_VERSION_LABEL]).toBe(
+         GREEN_LABEL_VALUE
+      )
+   })
+
+   test('validateServicesState', async () => {
+      const mockLabels = new Map<string, string>()
+      mockLabels[BLUE_GREEN_VERSION_LABEL] = bgHelper.GREEN_LABEL_VALUE
+      const mockSelectors = new Map<string, string>()
+      mockSelectors[BLUE_GREEN_VERSION_LABEL] = GREEN_LABEL_VALUE
+      jest.spyOn(bgHelper, 'fetchResource').mockImplementation(() =>
+         Promise.resolve({
+            kind: 'Service',
+            spec: {selector: mockSelectors},
+            metadata: {labels: mockLabels, name: 'nginx-service-green'}
+         })
+      )
+      expect(
+         await validateServicesState(kubectl, testObjects.serviceEntityList)
+      ).toBe(true)
+   })
+
+   test('getServiceSpecLabel', () => {
+      testObjects.serviceEntityList[0].spec.selector[BLUE_GREEN_VERSION_LABEL] =
+         GREEN_LABEL_VALUE
+
+      expect(getServiceSpecLabel(testObjects.serviceEntityList[0])).toBe(
+         GREEN_LABEL_VALUE
+      )
+   })
+})