mirror of https://github.com/k3s-io/k3s
117 lines
3.1 KiB
Go
117 lines
3.1 KiB
Go
/*
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Copyright 2018 The Kubernetes Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package printers_test
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import (
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"bytes"
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"strings"
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"testing"
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"k8s.io/api/core/v1"
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metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
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"k8s.io/kubernetes/pkg/printers"
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)
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func TestNamePrinterSupportsExpectedFormats(t *testing.T) {
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testObject := &v1.Pod{ObjectMeta: metav1.ObjectMeta{Name: "foo"}}
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testCases := []struct {
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name string
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outputFormat string
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operation string
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dryRun bool
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expectedError string
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expectedOutput string
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expectNoMatch bool
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}{
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{
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name: "valid \"name\" output format with no operation prints resource name",
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outputFormat: "name",
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expectedOutput: "pod/foo",
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},
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{
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name: "valid \"name\" output format and an operation prints success message",
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outputFormat: "name",
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operation: "patched",
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expectedOutput: "pod/foo patched",
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},
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{
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name: "valid \"name\" output format and an operation prints success message with dry run",
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outputFormat: "name",
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operation: "patched",
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dryRun: true,
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expectedOutput: "pod/foo patched (dry run)",
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},
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{
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name: "operation and no valid \"name\" output does not match a printer",
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operation: "patched",
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dryRun: true,
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expectNoMatch: true,
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},
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{
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name: "no printer is matched on an invalid outputFormat",
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outputFormat: "invalid",
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expectNoMatch: true,
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},
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{
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name: "printer should not match on any other format supported by another printer",
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outputFormat: "go-template",
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expectNoMatch: true,
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},
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}
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for _, tc := range testCases {
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t.Run(tc.name, func(t *testing.T) {
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printFlags := printers.NamePrintFlags{
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Operation: tc.operation,
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DryRun: tc.dryRun,
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}
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p, matched, err := printFlags.ToPrinter(tc.outputFormat)
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if tc.expectNoMatch {
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if matched {
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t.Fatalf("expected no printer matches for output format %q", tc.outputFormat)
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}
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return
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}
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if !matched {
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t.Fatalf("expected to match template printer for output format %q", tc.outputFormat)
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}
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if len(tc.expectedError) > 0 {
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if err == nil || !strings.Contains(err.Error(), tc.expectedError) {
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t.Errorf("expecting error %q, got %v", tc.expectedError, err)
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}
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return
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}
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if err != nil {
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t.Fatalf("unexpected error: %v", err)
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}
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out := bytes.NewBuffer([]byte{})
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err = p.PrintObj(testObject, out)
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if err != nil {
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t.Errorf("unexpected error: %v", err)
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}
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if !strings.Contains(out.String(), tc.expectedOutput) {
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t.Errorf("unexpected output: expecting %q, got %q", tc.expectedOutput, out.String())
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}
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})
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}
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}
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