stepcontext_test.go

Documentation: k8s.io/kubernetes/test/utils/ktesting

     1  /*
     2  Copyright 2024 The Kubernetes Authors.
     3  
     4  Licensed under the Apache License, Version 2.0 (the "License");
     5  you may not use this file except in compliance with the License.
     6  You may obtain a copy of the License at
     7  
     8      http://www.apache.org/licenses/LICENSE-2.0
     9  
    10  Unless required by applicable law or agreed to in writing, software
    11  distributed under the License is distributed on an "AS IS" BASIS,
    12  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    13  See the License for the specific language governing permissions and
    14  limitations under the License.
    15  */
    16  
    17  package ktesting
    18  
    19  import (
    20  	"bytes"
    21  	"os"
    22  	"testing"
    23  	"time"
    24  
    25  	"github.com/stretchr/testify/assert"
    26  )
    27  
    28  func TestStepContext(t *testing.T) {
    29  	for name, tc := range map[string]testcase{
    30  		"output": {
    31  			cb: func(tCtx TContext) {
    32  				tCtx = WithStep(tCtx, "step")
    33  				tCtx.Log("Log", "a", "b", 42)
    34  				tCtx.Logf("Logf %s %s %d", "a", "b", 42)
    35  				tCtx.Error("Error", "a", "b", 42)
    36  				tCtx.Errorf("Errorf %s %s %d", "a", "b", 42)
    37  			},
    38  			expectLog: `<klog header>: step: Log a b 42
    39  <klog header>: step: Logf a b 42
    40  `,
    41  			expectError: `step: Error a b 42
    42  step: Errorf a b 42`,
    43  		},
    44  		"fatal": {
    45  			cb: func(tCtx TContext) {
    46  				tCtx = WithStep(tCtx, "step")
    47  				tCtx.Fatal("Error", "a", "b", 42)
    48  				// not reached
    49  				tCtx.Log("Log")
    50  			},
    51  			expectError: `step: Error a b 42`,
    52  		},
    53  		"fatalf": {
    54  			cb: func(tCtx TContext) {
    55  				tCtx = WithStep(tCtx, "step")
    56  				tCtx.Fatalf("Error %s %s %d", "a", "b", 42)
    57  				// not reached
    58  				tCtx.Log("Log")
    59  			},
    60  			expectError: `step: Error a b 42`,
    61  		},
    62  		"progress": {
    63  			cb: func(tCtx TContext) {
    64  				tCtx = WithStep(tCtx, "step")
    65  				var buffer bytes.Buffer
    66  				oldOut := defaultProgressReporter.setOutput(&buffer)
    67  				defer defaultProgressReporter.setOutput(oldOut)
    68  				remove := tCtx.Value("GINKGO_SPEC_CONTEXT").(ginkgoReporter).AttachProgressReporter(func() string { return "hello world" })
    69  				defer remove()
    70  				defaultSignalChannel <- os.Interrupt
    71  				// No good way to sync here, so let's just wait.
    72  				time.Sleep(5 * time.Second)
    73  				defaultProgressReporter.setOutput(oldOut)
    74  				tCtx.Log(buffer.String())
    75  
    76  				noSuchValue := tCtx.Value("some other key")
    77  				assert.Equal(tCtx, nil, noSuchValue, "value for unknown context value key")
    78  			},
    79  			expectLog: `<klog header>: step: You requested a progress report.
    80  
    81  step: hello world
    82  `,
    83  			expectDuration: 5 * time.Second,
    84  			expectNoFail:   true,
    85  		},
    86  	} {
    87  		tc := tc
    88  		t.Run(name, func(t *testing.T) {
    89  			tc.run(t)
    90  		})
    91  	}
    92  }
    93
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