Cut more ties to k8sdeps

Add tests for all the plugins.

plugin/someteam.example.com/v1/configmapgenerator/ConfigMapGenerator_test.go

@@ -0,0 +1,38 @@
+// 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 TestConfigMapGeneratorPlugin(t *testing.T) {
+	tc := plugin.NewEnvForTest(t).Set()
+	defer tc.Reset()
+
+	tc.BuildExecPlugin(
+		"someteam.example.com", "v1", "ConfigMapGenerator")
+
+	th := kusttest_test.NewKustTestPluginHarness(t, "/app")
+
+	m := th.LoadAndRunGenerator(`
+apiVersion: someteam.example.com/v1
+kind: ConfigMapGenerator
+metadata:
+  name: whatever
+argsOneLiner: alice myMomsMaidenName
+`)
+	th.AssertActualEqualsExpected(m, `
+apiVersion: v1
+data:
+  password: myMomsMaidenName
+  username: alice
+kind: ConfigMap
+metadata:
+  name: example-configmap-test
+`)
+}