Add a plugin loader test.

internal/plugintest/plugintestenv.go

@@ -11,23 +11,23 @@ See the License for the specific language governing permissions and
 limitations under the License.
 */
 
-package target_test
+package plugintest_test
 
 import (
 	"io/ioutil"
 	"os"
 	"os/exec"
 	"path/filepath"
-	"sigs.k8s.io/kustomize/k8sdeps/kv/plugin"
 	"testing"
 
+	"sigs.k8s.io/kustomize/k8sdeps/kv/plugin"
 	"sigs.k8s.io/kustomize/pkg/pgmconfig"
 	"sigs.k8s.io/kustomize/pkg/plugins"
 )
 
-// TestEnvController manages the KustTarget test environment.
+// PluginTestEnv manages the plugin test environment.
 // It sets/resets XDG_CONFIG_HOME, makes/removes a temp objRoot.
-type TestEnvController struct {
+type PluginTestEnv struct {
 	t        *testing.T
 	compiler *plugins.Compiler
 	workDir  string
@@ -35,30 +35,30 @@ type TestEnvController struct {
 	wasSet   bool
 }
 
-func NewTestEnvController(t *testing.T) *TestEnvController {
-	return &TestEnvController{t: t}
+func NewPluginTestEnv(t *testing.T) *PluginTestEnv {
+	return &PluginTestEnv{t: t}
 }
 
-func (x *TestEnvController) Set() *TestEnvController {
+func (x *PluginTestEnv) Set() *PluginTestEnv {
 	x.createWorkDir()
 	x.compiler = x.makeCompiler()
 	x.setEnv()
 	return x
 }
 
-func (x *TestEnvController) Reset() {
+func (x *PluginTestEnv) Reset() {
 	x.resetEnv()
 	x.removeWorkDir()
 }
 
-func (x *TestEnvController) BuildGoPlugin(g, v, k string) {
+func (x *PluginTestEnv) BuildGoPlugin(g, v, k string) {
 	err := x.compiler.Compile(g, v, k)
 	if err != nil {
 		x.t.Errorf("compile failed: %v", err)
 	}
 }
 
-func (x *TestEnvController) BuildExecPlugin(name ...string) {
+func (x *PluginTestEnv) BuildExecPlugin(name ...string) {
 	obj := filepath.Join(
 		append([]string{x.workDir, pgmconfig.ProgramName, plugin.PluginRoot}, name...)...)
 
@@ -80,7 +80,7 @@ func (x *TestEnvController) BuildExecPlugin(name ...string) {
 	}
 }
 
-func (x *TestEnvController) makeCompiler() *plugins.Compiler {
+func (x *PluginTestEnv) makeCompiler() *plugins.Compiler {
 	// The plugin loader wants to find object code under
 	//    $XDG_CONFIG_HOME/kustomize/plugins
 	// and the compiler writes object code to
@@ -99,7 +99,7 @@ func (x *TestEnvController) makeCompiler() *plugins.Compiler {
 	return plugins.NewCompiler(srcRoot, objRoot)
 }
 
-func (x *TestEnvController) createWorkDir() {
+func (x *PluginTestEnv) createWorkDir() {
 	var err error
 	x.workDir, err = ioutil.TempDir("", "kustomize-plugin-tests")
 	if err != nil {
@@ -107,7 +107,7 @@ func (x *TestEnvController) createWorkDir() {
 	}
 }
 
-func (x *TestEnvController) removeWorkDir() {
+func (x *PluginTestEnv) removeWorkDir() {
 	err := os.RemoveAll(x.workDir)
 	if err != nil {
 		x.t.Errorf(
@@ -115,12 +115,12 @@ func (x *TestEnvController) removeWorkDir() {
 	}
 }
 
-func (x *TestEnvController) setEnv() {
+func (x *PluginTestEnv) setEnv() {
 	x.oldXdg, x.wasSet = os.LookupEnv(pgmconfig.XDG_CONFIG_HOME)
 	os.Setenv(pgmconfig.XDG_CONFIG_HOME, x.workDir)
 }
 
-func (x *TestEnvController) resetEnv() {
+func (x *PluginTestEnv) resetEnv() {
 	if x.wasSet {
 		os.Setenv(pgmconfig.XDG_CONFIG_HOME, x.oldXdg)
 	} else {

pkg/plugins/generators.go

@@ -1,42 +0,0 @@
-/*
-Copyright 2019 The Kubernetes Authors.
-
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-    http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
-*/
-
-package plugins
-
-import (
-	"fmt"
-
-	"sigs.k8s.io/kustomize/pkg/ifc"
-	"sigs.k8s.io/kustomize/pkg/resmap"
-	"sigs.k8s.io/kustomize/pkg/transformers"
-)
-
-func (l *Loader) LoadGenerators(
-	ldr ifc.Loader, rm resmap.ResMap) ([]transformers.Generator, error) {
-	var result []transformers.Generator
-	for _, res := range rm {
-		c, err := l.loadAndConfigurePlugin(ldr, res)
-		if err != nil {
-			return nil, err
-		}
-		g, ok := c.(transformers.Generator)
-		if !ok {
-			return nil, fmt.Errorf("plugin %s not a generator", res.Id())
-		}
-		result = append(result, g)
-	}
-	return result, nil
-}

pkg/plugins/loader.go

@@ -45,6 +45,23 @@ func NewLoader(
 	return &Loader{pc: pc, rf: rf}
 }
 
+func (l *Loader) LoadGenerators(
+	ldr ifc.Loader, rm resmap.ResMap) ([]transformers.Generator, error) {
+	var result []transformers.Generator
+	for _, res := range rm {
+		c, err := l.loadAndConfigurePlugin(ldr, res)
+		if err != nil {
+			return nil, err
+		}
+		g, ok := c.(transformers.Generator)
+		if !ok {
+			return nil, fmt.Errorf("plugin %s not a generator", res.Id())
+		}
+		result = append(result, g)
+	}
+	return result, nil
+}
+
 func (l *Loader) LoadTransformers(
 	ldr ifc.Loader, rm resmap.ResMap) ([]transformers.Transformer, error) {
 	var result []transformers.Transformer

pkg/plugins/loader_test.go

@@ -0,0 +1,86 @@
+/*
+Copyright 2019 The Kubernetes Authors.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package plugins_test
+
+import (
+	"testing"
+
+	"sigs.k8s.io/kustomize/internal/plugintest"
+	"sigs.k8s.io/kustomize/k8sdeps/kunstruct"
+	"sigs.k8s.io/kustomize/k8sdeps/kv/plugin"
+	"sigs.k8s.io/kustomize/pkg/internal/loadertest"
+	"sigs.k8s.io/kustomize/pkg/plugins"
+	"sigs.k8s.io/kustomize/pkg/resmap"
+	"sigs.k8s.io/kustomize/pkg/resource"
+)
+
+const (
+	secretGenerator = `apiVersion: kustomize.config.k8s.io/v1
+kind: SecretGenerator
+metadata:
+  name: secretGenerator
+name: mySecret
+behavior: merge
+envFiles:
+- a.env
+- b.env
+valueFiles:
+- longsecret.txt
+literals:
+- FRUIT=apple
+- VEGETABLE=carrot
+`
+	serviceGenerator = `
+apiVersion: someteam.example.com/v1
+kind: ServiceGenerator
+metadata:
+  name: myServiceGenerator
+service: my-service
+port: "12345"
+`
+)
+
+func TestLoader(t *testing.T) {
+	tc := plugintest_test.NewPluginTestEnv(t).Set()
+	defer tc.Reset()
+
+	tc.BuildGoPlugin(
+		"kustomize.config.k8s.io", "v1", "SecretGenerator")
+	tc.BuildGoPlugin(
+		"someteam.example.com", "v1", "ServiceGenerator")
+
+	rmF := resmap.NewFactory(resource.NewFactory(
+		kunstruct.NewKunstructuredFactoryImpl()))
+
+	l := plugins.NewLoader(plugin.ActivePluginConfig(), rmF)
+	if l == nil {
+		t.Fatal("expect non-nil loader")
+	}
+
+	ldr := loadertest.NewFakeLoader("/foo")
+
+	m, err := rmF.NewResMapFromBytes([]byte(
+		serviceGenerator + "---\n" + secretGenerator))
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	_, err = l.LoadGenerators(ldr, m)
+	if err != nil {
+		t.Fatal(err)
+	}
+}

pkg/target/chartinflatorexecplugin_test.go

@@ -20,6 +20,7 @@ package target_test
 import (
 	"testing"
 
+	"sigs.k8s.io/kustomize/internal/plugintest"
 	"sigs.k8s.io/kustomize/k8sdeps/kv/plugin"
 )
 
@@ -33,7 +34,7 @@ import (
 // This test requires having the helm binary on the PATH.
 //
 func TestChartInflatorExecPlugin(t *testing.T) {
-	tc := NewTestEnvController(t).Set()
+	tc := plugintest_test.NewPluginTestEnv(t).Set()
 	defer tc.Reset()
 
 	tc.BuildExecPlugin(

pkg/target/generatorplugin_test.go

@@ -17,6 +17,7 @@ import (
 	"path/filepath"
 	"testing"
 
+	"sigs.k8s.io/kustomize/internal/plugintest"
 	"sigs.k8s.io/kustomize/k8sdeps/kv/plugin"
 )
 
@@ -32,7 +33,7 @@ port: "12345"
 }
 
 func TestServiceGeneratorPlugin(t *testing.T) {
-	tc := NewTestEnvController(t).Set()
+	tc := plugintest_test.NewPluginTestEnv(t).Set()
 	defer tc.Reset()
 
 	tc.BuildGoPlugin(
@@ -97,7 +98,7 @@ ut labore et dolore magna aliqua.
 
 // nolint:lll
 func TestSecretGenerator(t *testing.T) {
-	tc := NewTestEnvController(t).Set()
+	tc := plugintest_test.NewPluginTestEnv(t).Set()
 	defer tc.Reset()
 
 	tc.BuildGoPlugin(
@@ -129,7 +130,7 @@ type: Opaque
 }
 
 func TestConfigMapGenerator(t *testing.T) {
-	tc := NewTestEnvController(t).Set()
+	tc := plugintest_test.NewPluginTestEnv(t).Set()
 	defer tc.Reset()
 
 	tc.BuildExecPlugin(

pkg/target/transformerplugin_test.go

@@ -16,6 +16,7 @@ package target_test
 import (
 	"testing"
 
+	"sigs.k8s.io/kustomize/internal/plugintest"
 	"sigs.k8s.io/kustomize/k8sdeps/kv/plugin"
 )
 
@@ -56,7 +57,7 @@ metadata:
 }
 
 func TestOrderedTransformers(t *testing.T) {
-	tc := NewTestEnvController(t).Set()
+	tc := plugintest_test.NewPluginTestEnv(t).Set()
 	defer tc.Reset()
 
 	tc.BuildGoPlugin(
@@ -102,7 +103,7 @@ spec:
 }
 
 func TestSedTransformer(t *testing.T) {
-	tc := NewTestEnvController(t).Set()
+	tc := plugintest_test.NewPluginTestEnv(t).Set()
 	defer tc.Reset()
 
 	tc.BuildExecPlugin(
@@ -148,7 +149,7 @@ metadata:
 }
 
 func TestTransformedTransformers(t *testing.T) {
-	tc := NewTestEnvController(t).Set()
+	tc := plugintest_test.NewPluginTestEnv(t).Set()
 	defer tc.Reset()
 
 	tc.BuildGoPlugin(