Convert inventory transformer to plugin, reduce k8sdeps.

plugin/builtin/inventorytransformer/InventoryTransformer_test.go

@@ -0,0 +1,125 @@
+// 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"
+)
+
+const (
+	content = `
+apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: cm1
+---
+apiVersion: v1
+kind: Secret
+metadata:
+  name: secret1
+---
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: deploy1
+spec:
+  template:
+    spec:
+      containers:
+      - env:
+          name: CM_FOO
+          valueFrom:
+            configMapKeyRef:
+              key: someKey
+              name: cm1
+        envFrom:
+          configMapRef:
+            key: someKey
+            name: cm1
+          secretRef:
+            key: someKey
+            name: secret1
+        image: nginx:1.7.9
+        name: nginx
+`
+	inv = `
+apiVersion: v1
+kind: ConfigMap
+metadata:
+  annotations:
+    kustomize.config.k8s.io/Inventory: '{"current":{"apps_v1_Deployment|~X|deploy1":null,"~G_v1_ConfigMap|~X|cm1":null,"~G_v1_Secret|~X|secret1":null}}'
+    kustomize.config.k8s.io/InventoryHash: h44788gt7g
+  name: pruneCM
+  namespace: default
+`
+)
+
+func TestInventoryTransformerCollect(t *testing.T) {
+	tc := plugin.NewEnvForTest(t).Set()
+	defer tc.Reset()
+
+	tc.BuildGoPlugin(
+		"builtin", "", "InventoryTransformer")
+
+	th := kusttest_test.NewKustTestPluginHarness(t, "/app")
+
+	rm := th.LoadAndRunTransformer(`
+apiVersion: builtin
+kind: InventoryTransformer
+metadata:
+  name: notImportantHere
+policy: GarbageCollect
+name: pruneCM
+namespace: default
+`, content)
+
+	th.AssertActualEqualsExpected(rm, inv)
+}
+
+func TestInventoryTransformerIgnore(t *testing.T) {
+	tc := plugin.NewEnvForTest(t).Set()
+	defer tc.Reset()
+
+	tc.BuildGoPlugin(
+		"builtin", "", "InventoryTransformer")
+
+	th := kusttest_test.NewKustTestPluginHarness(t, "/app")
+
+	rm := th.LoadAndRunTransformer(`
+apiVersion: builtin
+kind: InventoryTransformer
+metadata:
+  name: notImportantHere
+policy: GarbageIgnore
+name: pruneCM
+namespace: default
+`, content)
+
+	th.AssertActualEqualsExpected(rm, inv+"---"+content)
+}
+
+func TestInventoryTransformerDefaultPolicy(t *testing.T) {
+	tc := plugin.NewEnvForTest(t).Set()
+	defer tc.Reset()
+
+	tc.BuildGoPlugin(
+		"builtin", "", "InventoryTransformer")
+
+	th := kusttest_test.NewKustTestPluginHarness(t, "/app")
+
+	rm := th.LoadAndRunTransformer(`
+apiVersion: builtin
+kind: InventoryTransformer
+metadata:
+  name: notImportantHere
+name: pruneCM
+namespace: default
+`, content)
+
+	th.AssertActualEqualsExpected(rm, inv+"---"+content)
+}
+