Isolated content of pkg/kustomize

pkg/commands/addresource_test.go

@@ -0,0 +1,110 @@
+/*
+Copyright 2017 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 commands
+
+import (
+	"bytes"
+	"os"
+	"testing"
+
+	"strings"
+
+	"k8s.io/kubectl/pkg/kustomize/constants"
+	"k8s.io/kubectl/pkg/kustomize/util/fs"
+)
+
+const (
+	resourceFileName    = "myWonderfulResource.yaml"
+	resourceFileContent = `
+Lorem ipsum dolor sit amet, consectetur adipiscing elit,
+sed do eiusmod tempor incididunt ut labore et dolore magna aliqua.
+`
+	kustomizationContent = `namePrefix: some-prefix
+# Labels to add to all objects and selectors.
+# These labels would also be used to form the selector for apply --prune
+# Named differently than “labels” to avoid confusion with metadata for this object
+commonLabels:
+  app: helloworld
+commonAnnotations:
+  note: This is an example annotation
+resources: []
+#- service.yaml
+#- ../some-dir/
+# There could also be configmaps in Base, which would make these overlays
+configMapGenerator: []
+# There could be secrets in Base, if just using a fork/rebase workflow
+secretGenerator: []
+`
+)
+
+func TestAddResourceHappyPath(t *testing.T) {
+	buf := bytes.NewBuffer([]byte{})
+	fakeFS := fs.MakeFakeFS()
+	fakeFS.WriteFile(resourceFileName, []byte(resourceFileContent))
+	fakeFS.WriteFile(constants.KustomizationFileName, []byte(kustomizationContent))
+
+	cmd := newCmdAddResource(buf, os.Stderr, fakeFS)
+	args := []string{resourceFileName}
+	err := cmd.RunE(cmd, args)
+	if err != nil {
+		t.Errorf("unexpected cmd error: %v", err)
+	}
+	content, err := fakeFS.ReadFile(constants.KustomizationFileName)
+	if err != nil {
+		t.Errorf("unexpected read error: %v", err)
+	}
+	if !strings.Contains(string(content), resourceFileName) {
+		t.Errorf("expected resource name in kustomization")
+	}
+}
+
+func TestAddResourceAlreadyThere(t *testing.T) {
+	buf := bytes.NewBuffer([]byte{})
+	fakeFS := fs.MakeFakeFS()
+	fakeFS.WriteFile(resourceFileName, []byte(resourceFileContent))
+	fakeFS.WriteFile(constants.KustomizationFileName, []byte(kustomizationContent))
+
+	cmd := newCmdAddResource(buf, os.Stderr, fakeFS)
+	args := []string{resourceFileName}
+	err := cmd.RunE(cmd, args)
+	if err != nil {
+		t.Fatalf("unexpected cmd error: %v", err)
+	}
+
+	// adding an existing resource should return an error
+	err = cmd.RunE(cmd, args)
+	if err == nil {
+		t.Errorf("expected already there problem")
+	}
+	if err.Error() != "resource "+resourceFileName+" already in kustomization file" {
+		t.Errorf("unexpected error %v", err)
+	}
+}
+
+func TestAddResourceNoArgs(t *testing.T) {
+	buf := bytes.NewBuffer([]byte{})
+	fakeFS := fs.MakeFakeFS()
+
+	cmd := newCmdAddResource(buf, os.Stderr, fakeFS)
+	err := cmd.Execute()
+	if err == nil {
+		t.Errorf("expected error: %v", err)
+	}
+	if err.Error() != "must specify a resource file" {
+		t.Errorf("incorrect error: %v", err.Error())
+	}
+}