github.com/spotmaxtech/k8s-apimachinery-v0260@v0.0.1/pkg/watch/filter_test.go (about)

     1  /*
     2  Copyright 2014 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 watch_test
    18  
    19  import (
    20  	"reflect"
    21  	"testing"
    22  
    23  	. "github.com/spotmaxtech/k8s-apimachinery-v0260/pkg/watch"
    24  )
    25  
    26  func TestFilter(t *testing.T) {
    27  	table := []Event{
    28  		{Type: Added, Object: testType("foo")},
    29  		{Type: Added, Object: testType("bar")},
    30  		{Type: Added, Object: testType("baz")},
    31  		{Type: Added, Object: testType("qux")},
    32  		{Type: Added, Object: testType("zoo")},
    33  	}
    34  
    35  	source := NewFake()
    36  	filtered := Filter(source, func(e Event) (Event, bool) {
    37  		return e, e.Object.(testType)[0] != 'b'
    38  	})
    39  
    40  	go func() {
    41  		for _, item := range table {
    42  			source.Action(item.Type, item.Object)
    43  		}
    44  		source.Stop()
    45  	}()
    46  
    47  	var got []string
    48  	for {
    49  		event, ok := <-filtered.ResultChan()
    50  		if !ok {
    51  			break
    52  		}
    53  		got = append(got, string(event.Object.(testType)))
    54  	}
    55  
    56  	if e, a := []string{"foo", "qux", "zoo"}, got; !reflect.DeepEqual(e, a) {
    57  		t.Errorf("got %v, wanted %v", e, a)
    58  	}
    59  }
    60  
    61  func TestFilterStop(t *testing.T) {
    62  	source := NewFake()
    63  	filtered := Filter(source, func(e Event) (Event, bool) {
    64  		return e, e.Object.(testType)[0] != 'b'
    65  	})
    66  
    67  	go func() {
    68  		source.Add(testType("foo"))
    69  		filtered.Stop()
    70  	}()
    71  
    72  	var got []string
    73  	for {
    74  		event, ok := <-filtered.ResultChan()
    75  		if !ok {
    76  			break
    77  		}
    78  		got = append(got, string(event.Object.(testType)))
    79  	}
    80  
    81  	if e, a := []string{"foo"}, got; !reflect.DeepEqual(e, a) {
    82  		t.Errorf("got %v, wanted %v", e, a)
    83  	}
    84  }
    85  
    86  func TestRecorder(t *testing.T) {
    87  	events := []Event{
    88  		{Type: Added, Object: testType("foo")},
    89  		{Type: Added, Object: testType("bar")},
    90  		{Type: Added, Object: testType("baz")},
    91  		{Type: Added, Object: testType("qux")},
    92  		{Type: Added, Object: testType("zoo")},
    93  	}
    94  
    95  	source := NewFake()
    96  	go func() {
    97  		for _, item := range events {
    98  			source.Action(item.Type, item.Object)
    99  		}
   100  		source.Stop()
   101  	}()
   102  
   103  	recorder := NewRecorder(source)
   104  	for {
   105  		_, ok := <-recorder.Interface.ResultChan()
   106  		if !ok {
   107  			break
   108  		}
   109  	}
   110  	recordedEvents := recorder.Events()
   111  	if !reflect.DeepEqual(recordedEvents, events) {
   112  		t.Errorf("got %v, expected %v", recordedEvents, events)
   113  	}
   114  }