Add integration tests for shortnames expanding to correct resources

This adds new integration tests to test shortnames and
singular names are expanding to correct resources.

In this case, core types have always higher precendence than
CRDs.

test/cmd/discovery.sh

@@ -57,6 +57,151 @@ run_assert_short_name_tests() {
   ## test if a short name is exported during discovery
   kube::test::if_has_string "${output_message}" '{"name":"configmaps","singularName":"","namespaced":true,"kind":"ConfigMap","verbs":\["create","delete","deletecollection","get","list","patch","update","watch"\],"shortNames":\["cm"\],"storageVersionHash":'
 
+  # check that there is no pod with the name test-crd-example
+  output_message=$(kubectl get pod)
+  kube::test::if_has_not_string "${output_message}" "test-crd-example"
+
+    kubectl create -f - << __EOF__
+apiVersion: apiextensions.k8s.io/v1
+kind: CustomResourceDefinition
+metadata:
+  name: examples.test.com
+spec:
+  group: test.com
+  scope: Namespaced
+  versions:
+    - name: v1
+      served: true
+      storage: true
+      schema:
+        openAPIV3Schema:
+          type: object
+          properties:
+            spec:
+              type: object
+              properties:
+                test:
+                  type: string
+  names:
+    plural: examples
+    singular: example
+    shortNames:
+      - pod
+    kind: Example
+__EOF__
+
+  # Test that we can list this new custom resource
+  kube::test::wait_object_assert customresourcedefinitions "{{range.items}}{{if eq $id_field \\\"examples.test.com\\\"}}{{$id_field}}:{{end}}{{end}}" 'examples.test.com:'
+
+  kubectl create -f - << __EOF__
+apiVersion: test.com/v1
+kind: Example
+metadata:
+  name: test-crd-example
+spec:
+  test: test
+__EOF__
+
+  # Test that we can list this new custom resource
+  kube::test::wait_object_assert examples "{{range.items}}{{${id_field:?}}}:{{end}}" 'test-crd-example:'
+
+  output_message=$(kubectl get examples)
+  kube::test::if_has_string "${output_message}" "test-crd-example"
+
+  # test that get pod returns v1/pod instead crd
+  output_message=$(kubectl get pod)
+  kube::test::if_has_not_string "${output_message}" "test-crd-example"
+
+  # invalidate cache and assure that still correct resource is shown
+  kubectl api-resources
+
+  # retest the above cases after invalidating cache
+  output_message=$(kubectl get examples)
+  kube::test::if_has_string "${output_message}" "test-crd-example"
+
+  output_message=$(kubectl get pod)
+  kube::test::if_has_not_string "${output_message}" "test-crd-example"
+
+  # Cleanup
+  kubectl delete examples/test-crd-example
+  kubectl delete customresourcedefinition examples.test.com
+
+  set +o nounset
+  set +o errexit
+}
+
+run_assert_singular_name_tests() {
+  set -o nounset
+  set -o errexit
+
+  create_and_use_new_namespace
+  kube::log::status "Testing assert singular name"
+
+  # check that there is no pod with the name test-crd-example
+  output_message=$(kubectl get pod)
+  kube::test::if_has_not_string "${output_message}" "test-crd-example"
+
+  kubectl create -f - << __EOF__
+apiVersion: apiextensions.k8s.io/v1
+kind: CustomResourceDefinition
+metadata:
+  name: examples.test.com
+spec:
+  group: test.com
+  scope: Namespaced
+  versions:
+    - name: v1
+      served: true
+      storage: true
+      schema:
+        openAPIV3Schema:
+          type: object
+          properties:
+            spec:
+              type: object
+              properties:
+                test:
+                  type: string
+  names:
+    plural: examples
+    singular: pod
+    kind: Example
+__EOF__
+
+  # Test that we can list this new custom resource
+  kube::test::wait_object_assert customresourcedefinitions "{{range.items}}{{if eq $id_field \\\"examples.test.com\\\"}}{{$id_field}}:{{end}}{{end}}" 'examples.test.com:'
+
+  kubectl create -f - << __EOF__
+apiVersion: test.com/v1
+kind: Example
+metadata:
+  name: test-crd-example
+spec:
+  test: test
+__EOF__
+
+  # Test that we can list this new custom resource
+  kube::test::wait_object_assert examples "{{range.items}}{{${id_field:?}}}:{{end}}" 'test-crd-example:'
+
+  output_message=$(kubectl get examples)
+  kube::test::if_has_string "${output_message}" "test-crd-example"
+
+  output_message=$(kubectl get pod)
+  kube::test::if_has_not_string "${output_message}" "test-crd-example"
+
+  # invalidate cache and assure that still correct resource is shown
+  kubectl api-resources
+
+  output_message=$(kubectl get examples)
+  kube::test::if_has_string "${output_message}" "test-crd-example"
+
+  output_message=$(kubectl get pod)
+  kube::test::if_has_not_string "${output_message}" "test-crd-example"
+
+  # Cleanup
+  kubectl delete examples/test-crd-example
+  kubectl delete customresourcedefinition examples.test.com
+
   set +o nounset
   set +o errexit
 }

test/cmd/legacy-script.sh

@@ -505,6 +505,12 @@ runTests() {
 
   record_command run_assert_short_name_tests
 
+  #########################
+  # Assert singular name  #
+  #########################
+
+  record_command run_assert_singular_name_tests
+
   #########################
   # Assert categories     #
   #########################