add test for using a custom openapi schema - issue kubernetes-sigs#2825

api/krusty/openapicustomschema_test.go

@@ -0,0 +1,125 @@
+package krusty_test
+
+import (
+	"testing"
+
+	kusttest_test "sigs.k8s.io/kustomize/api/testutils/kusttest"
+)
+
+//nolint
+func writeTestSchema(th kusttest_test.Harness, filepath string) {
+	th.WriteF(filepath+"mycrd_schema.json", `
+{
+  "definitions": {
+    "v1alpha1.MyCRD": {
+      "description": "MyCRD is the Schema for the mycrd API",
+      "properties": {
+        "apiVersion": {
+          "description": "APIVersion defines the versioned schema of this representation of an object. Servers should convert recognized schemas to the latest internal value, and may reject unrecognized values. More info: https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#resources",
+          "type": "string"
+        },
+        "kind": {
+          "description": "Kind is a string value representing the REST resource this object represents. Servers may infer this from the endpoint the client submits requests to. Cannot be updated. In CamelCase. More info: https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#types-kinds",
+          "type": "string"
+        },
+        "metadata": {
+          "type": "object"
+        },
+        "spec": {
+          "description": "MyCRDSpec defines the desired state of MyCRD",
+          "properties": {
+            "template": {
+              "$ref": "#/definitions/io.k8s.api.core.v1.PodTemplateSpec",
+              "description": "Template describes the pods that will be created."
+            }
+          },
+          "required": [
+            "template"
+          ],
+          "type": "object"
+        },
+        "status": {
+          "description": "MyCRDStatus defines the observed state of MyCRD",
+          "properties": {
+            "success": {
+              "type": "boolean"
+            }
+          },
+          "type": "object"
+        }
+      },
+      "type": "object",
+      "x-kubernetes-group-version-kind": [
+        {
+          "group": "example.com",
+          "kind": "MyCRD",
+          "version": "v1alpha1"
+        }
+      ]
+    }
+  }
+}
+`)
+}
+
+// Test for issue #2825
+func TestCustomOpenApiFieldNoOverlays(t *testing.T) {
+	th := kusttest_test.MakeHarness(t)
+	th.WriteK("/app", `
+resources:
+- mycrd.yaml
+
+openapi:
+  path: mycrd_schema.json
+
+patchesStrategicMerge:
+- |-
+  apiVersion: example.com/v1alpha1
+  kind: MyCRD
+  metadata:
+    name: service
+  spec:
+    template:
+      spec:
+        containers:
+        - name: server
+          image: nginx
+`)
+	th.WriteF("/app/mycrd.yaml", `
+apiVersion: example.com/v1alpha1
+kind: MyCRD
+metadata:
+  name: service
+spec:
+  template:
+    spec:
+      containers:
+      - name: server
+        image: server
+        command: example
+        ports:
+        - name: grpc
+          protocol: TCP
+          containerPort: 8080
+`)
+	writeTestSchema(th, "/app/")
+
+	// currently broken
+	// desired behavior: replace image with nginx without
+	// completely overwriting the containers field
+	// needs to use the PodSpec merge strategy from the
+	// provided openapi schema
+	m := th.Run("/app", th.MakeDefaultOptions())
+	th.AssertActualEqualsExpected(m, `
+apiVersion: example.com/v1alpha1
+kind: MyCRD
+metadata:
+  name: service
+spec:
+  template:
+    spec:
+      containers:
+      - image: nginx
+        name: server
+`)
+}