Add generated file

This PR adds generated files under pkg/client and vendor folder.

vendor/k8s.io/kubernetes/pkg/printers/template_flags_test.go

@@ -0,0 +1,206 @@
+/*
+Copyright 2018 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 printers
+
+import (
+	"bytes"
+	"fmt"
+	"io/ioutil"
+	"os"
+	"strings"
+	"testing"
+
+	"k8s.io/api/core/v1"
+	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+	"k8s.io/kubernetes/pkg/kubectl/genericclioptions"
+)
+
+func TestPrinterSupportsExpectedTemplateFormats(t *testing.T) {
+	testObject := &v1.Pod{ObjectMeta: metav1.ObjectMeta{Name: "foo"}}
+
+	templateFile, err := ioutil.TempFile("", "printers_jsonpath_flags")
+	if err != nil {
+		t.Fatalf("unexpected error: %v", err)
+	}
+	defer func(tempFile *os.File) {
+		tempFile.Close()
+		os.Remove(tempFile.Name())
+	}(templateFile)
+
+	fmt.Fprintf(templateFile, "{{ .metadata.name }}")
+
+	testCases := []struct {
+		name               string
+		outputFormat       string
+		templateArg        string
+		expectedError      string
+		expectedParseError string
+		expectedOutput     string
+		expectNoMatch      bool
+	}{
+		{
+			name:           "valid output format also containing the template argument succeeds",
+			outputFormat:   "go-template={{ .metadata.name }}",
+			expectedOutput: "foo",
+		},
+		{
+			name:          "valid output format and no template argument results in an error",
+			outputFormat:  "template",
+			expectedError: "template format specified but no template given",
+		},
+		{
+			name:           "valid output format and template argument succeeds",
+			outputFormat:   "go-template",
+			templateArg:    "{{ .metadata.name }}",
+			expectedOutput: "foo",
+		},
+		{
+			name:           "Go-template file should match, and successfully return correct value",
+			outputFormat:   "go-template-file",
+			templateArg:    templateFile.Name(),
+			expectedOutput: "foo",
+		},
+		{
+			name:           "valid output format and invalid template argument results in the templateArg contents as the output",
+			outputFormat:   "go-template",
+			templateArg:    "invalid",
+			expectedOutput: "invalid",
+		},
+		{
+			name:          "no printer is matched on an invalid outputFormat",
+			outputFormat:  "invalid",
+			expectNoMatch: true,
+		},
+		{
+			name:          "go-template printer should not match on any other format supported by another printer",
+			outputFormat:  "jsonpath",
+			expectNoMatch: true,
+		},
+	}
+
+	for _, tc := range testCases {
+		t.Run(tc.name, func(t *testing.T) {
+			templateArg := &tc.templateArg
+			if len(tc.templateArg) == 0 {
+				templateArg = nil
+			}
+
+			printFlags := GoTemplatePrintFlags{
+				TemplateArgument: templateArg,
+			}
+
+			p, err := printFlags.ToPrinter(tc.outputFormat)
+			if tc.expectNoMatch {
+				if !genericclioptions.IsNoCompatiblePrinterError(err) {
+					t.Fatalf("expected no printer matches for output format %q", tc.outputFormat)
+				}
+				return
+			}
+			if genericclioptions.IsNoCompatiblePrinterError(err) {
+				t.Fatalf("expected to match template printer for output format %q", tc.outputFormat)
+			}
+
+			if len(tc.expectedError) > 0 {
+				if err == nil || !strings.Contains(err.Error(), tc.expectedError) {
+					t.Errorf("expecting error %q, got %v", tc.expectedError, err)
+				}
+				return
+			}
+			if err != nil {
+				t.Fatalf("unexpected error: %v", err)
+			}
+
+			out := bytes.NewBuffer([]byte{})
+			err = p.PrintObj(testObject, out)
+			if err != nil {
+				t.Errorf("unexpected error: %v", err)
+			}
+
+			if len(out.String()) != len(tc.expectedOutput) {
+				t.Errorf("unexpected output: expecting %q, got %q", tc.expectedOutput, out.String())
+			}
+		})
+	}
+}
+
+func TestTemplatePrinterDefaultsAllowMissingKeysToTrue(t *testing.T) {
+	testObject := &v1.Pod{ObjectMeta: metav1.ObjectMeta{Name: "foo"}}
+
+	allowMissingKeys := false
+
+	testCases := []struct {
+		name             string
+		templateArg      string
+		expectedOutput   string
+		expectedError    string
+		allowMissingKeys *bool
+	}{
+		{
+			name:             "existing field does not error and returns expected value",
+			templateArg:      "{{ .metadata.name }}",
+			expectedOutput:   "foo",
+			allowMissingKeys: &allowMissingKeys,
+		},
+		{
+			name:             "missing field does not error and returns no value since missing keys are allowed by default",
+			templateArg:      "{{ .metadata.missing }}",
+			expectedOutput:   "<no value>",
+			allowMissingKeys: nil,
+		},
+		{
+			name:             "missing field returns expected error if field is missing and allowMissingKeys is explicitly set to false",
+			templateArg:      "{{ .metadata.missing }}",
+			expectedError:    "error executing template",
+			allowMissingKeys: &allowMissingKeys,
+		},
+	}
+
+	for _, tc := range testCases {
+		t.Run(tc.name, func(t *testing.T) {
+			printFlags := GoTemplatePrintFlags{
+				TemplateArgument: &tc.templateArg,
+				AllowMissingKeys: tc.allowMissingKeys,
+			}
+
+			outputFormat := "template"
+			p, err := printFlags.ToPrinter(outputFormat)
+			if genericclioptions.IsNoCompatiblePrinterError(err) {
+				t.Fatalf("expected to match template printer for output format %q", outputFormat)
+			}
+			if err != nil {
+				t.Fatalf("unexpected error: %v", err)
+			}
+
+			out := bytes.NewBuffer([]byte{})
+			err = p.PrintObj(testObject, out)
+
+			if len(tc.expectedError) > 0 {
+				if err == nil || !strings.Contains(err.Error(), tc.expectedError) {
+					t.Errorf("expecting error %q, got %v", tc.expectedError, err)
+				}
+				return
+			}
+			if err != nil {
+				t.Errorf("unexpected error: %v", err)
+			}
+
+			if len(out.String()) != len(tc.expectedOutput) {
+				t.Errorf("unexpected output: expecting %q, got %q", tc.expectedOutput, out.String())
+			}
+		})
+	}
+}