Add integration test for apply-delete-apply bug

Signed-off-by: Alena Varkockova <varkockova.a@gmail.com>

test/integration/apply-delete-apply/00-assert.yaml

@@ -0,0 +1,11 @@
+apiVersion: kudo.dev/v1beta1
+kind: Instance
+metadata:
+  name: configmap-operator-instance
+spec:
+  operatorVersion:
+    name: configmap-operator-instance-0.1.0
+status:
+  planStatus:
+    deploy:
+      status: COMPLETE

test/integration/apply-delete-apply/00-install.yaml

@@ -0,0 +1,8 @@
+# this is a test covering regression described in #1596
+# there was a race in apply-delete-apply where cache was not invalidated between delete and second apply
+# as a result configmap did not exist at the end of plan
+apiVersion: kudo.dev/v1beta1
+kind: TestStep
+commands:
+  - command: kubectl kudo install --instance configmap-instance ./operator
+    namespaced: true

test/integration/apply-delete-apply/01-assert.yaml

@@ -0,0 +1,6 @@
+apiVersion: kudo.dev/v1beta1
+kind: ConfigMap
+metadata:
+  name: test-configmap
+data:
+  foo: bar

test/integration/apply-delete-apply/operator/operator.yaml

@@ -0,0 +1,42 @@
+apiVersion: kudo.dev/v1beta1
+name: "configmap-operator"
+operatorVersion: "0.1.0"
+appVersion: "1.7.9"
+kubernetesVersion: 1.13.0
+maintainers:
+  - name: Your name
+    email: <your@email.com>
+url: https://kudo.dev
+tasks:
+  - name: apply
+    kind: Apply
+    spec:
+      resources:
+        - configmap.yaml
+  - name: delete
+    kind: Delete
+    spec:
+      resources:
+        - configmap.yaml
+plans:
+  deploy:
+    strategy: serial
+    phases:
+      - name: main
+        strategy: serial
+        steps:
+          - name: apply
+            tasks:
+              - apply
+      - name: delete
+        strategy: serial
+        steps:
+          - name: delete
+            tasks:
+              - delete
+      - name: apply
+        strategy: serial
+        steps:
+          - name: apply
+            tasks:
+              - apply

test/integration/apply-delete-apply/operator/params.yaml

@@ -0,0 +1,5 @@
+apiVersion: kudo.dev/v1beta1
+parameters:
+  - name: replicas
+    description: Number of replicas that should be run as part of the deployment
+    default: 2

test/integration/apply-delete-apply/operator/templates/configmap.yaml

@@ -0,0 +1,6 @@
+apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: test-configmap
+data:
+  foo: bar