Push suffix/prefix code to plugin.

plugin/builtin/prefixsuffixtransformer/PrefixSuffixTransformer_test.go

@@ -0,0 +1,69 @@
+// Copyright 2019 The Kubernetes Authors.
+// SPDX-License-Identifier: Apache-2.0
+
+package main_test
+
+import (
+	"testing"
+
+	"sigs.k8s.io/kustomize/pkg/kusttest"
+	"sigs.k8s.io/kustomize/plugin"
+)
+
+func TestPrefixSuffixTransformer(t *testing.T) {
+	tc := plugin.NewEnvForTest(t).Set()
+	defer tc.Reset()
+
+	tc.BuildGoPlugin(
+		"builtin", "", "PrefixSuffixTransformer")
+
+	th := kusttest_test.NewKustTestPluginHarness(t, "/app")
+	rm := th.LoadAndRunTransformer(`
+apiVersion: builtin
+kind: PrefixSuffixTransformer
+metadata:
+  name: notImportantHere
+prefix: baked-
+suffix: -pie
+fieldSpecs:
+  - path: metadata/name
+`, `
+apiVersion: v1
+kind: Service
+metadata:
+  name: apple
+spec:
+  ports:
+  - port: 7002
+---
+apiVersion: apiextensions.k8s.io/v1beta1
+kind: CustomResourceDefinition
+metadata:
+  name: crd
+---
+apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: cm
+`)
+
+	th.AssertActualEqualsExpected(rm, `
+apiVersion: apiextensions.k8s.io/v1beta1
+kind: CustomResourceDefinition
+metadata:
+  name: crd
+---
+apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: baked-cm-pie
+---
+apiVersion: v1
+kind: Service
+metadata:
+  name: baked-apple-pie
+spec:
+  ports:
+  - port: 7002
+`)
+}