One plugin per dir.

plugin/someteam.example.com/v1/someservicegenerator/SomeServiceGenerator_test.go

@@ -0,0 +1,43 @@
+// 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 TestSomeServiceGeneratorPlugin(t *testing.T) {
+	tc := plugin.NewEnvForTest(t).Set()
+	defer tc.Reset()
+
+	tc.BuildGoPlugin(
+		"someteam.example.com", "v1", "SomeServiceGenerator")
+
+	th := kusttest_test.NewKustTestPluginHarness(t, "/app")
+
+	m := th.LoadAndRunGenerator(`
+apiVersion: someteam.example.com/v1
+kind: SomeServiceGenerator
+metadata:
+  name: myGenerator
+name: my-service
+port: "12345"
+`)
+	th.AssertActualEqualsExpected(m, `
+apiVersion: v1
+kind: Service
+metadata:
+  labels:
+    app: dev
+  name: my-service
+spec:
+  ports:
+  - port: 12345
+  selector:
+    app: dev
+`)
+}