sigs.k8s.io/kueue@v0.6.2/pkg/util/routine/error_channel_test.go (about)

     1  /*
     2  Copyright 2023 The Kubernetes Authors.
     3  Licensed under the Apache License, Version 2.0 (the "License");
     4  you may not use this file except in compliance with the License.
     5  You may obtain a copy of the License at
     6      http://www.apache.org/licenses/LICENSE-2.0
     7  Unless required by applicable law or agreed to in writing, software
     8  distributed under the License is distributed on an "AS IS" BASIS,
     9  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    10  See the License for the specific language governing permissions and
    11  limitations under the License.
    12  */
    13  
    14  package routine
    15  
    16  import (
    17  	"context"
    18  	"errors"
    19  	"testing"
    20  )
    21  
    22  func TestErrorChannel(t *testing.T) {
    23  	errCh := NewErrorChannel()
    24  
    25  	if actualErr := errCh.ReceiveError(); actualErr != nil {
    26  		t.Errorf("expect nil from err channel, but got %v", actualErr)
    27  	}
    28  
    29  	err := errors.New("unknown error")
    30  	errCh.SendError(err)
    31  	if actualErr := errCh.ReceiveError(); !errors.Is(actualErr, err) {
    32  		t.Errorf("expect %v from err channel, but got %v", err, actualErr)
    33  	}
    34  
    35  	ctx, cancel := context.WithCancel(context.Background())
    36  	errCh.SendErrorWithCancel(err, cancel)
    37  	if actualErr := errCh.ReceiveError(); !errors.Is(actualErr, err) {
    38  		t.Errorf("expect %v from err channel, but got %v", err, actualErr)
    39  	}
    40  
    41  	if ctxErr := ctx.Err(); !errors.Is(ctxErr, context.Canceled) {
    42  		t.Errorf("expect context canceled, but got %v", ctxErr)
    43  	}
    44  }