toleration_test.go

Documentation: k8s.io/api/core/v1

     1  /*
     2  Copyright 2017 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 v1
    18  
    19  import (
    20  	"testing"
    21  )
    22  
    23  func TestTolerationToleratesTaint(t *testing.T) {
    24  
    25  	testCases := []struct {
    26  		description     string
    27  		toleration      Toleration
    28  		taint           Taint
    29  		expectTolerated bool
    30  	}{
    31  		{
    32  			description: "toleration and taint have the same key and effect, and operator is Exists, and taint has no value, expect tolerated",
    33  			toleration: Toleration{
    34  				Key:      "foo",
    35  				Operator: TolerationOpExists,
    36  				Effect:   TaintEffectNoSchedule,
    37  			},
    38  			taint: Taint{
    39  				Key:    "foo",
    40  				Effect: TaintEffectNoSchedule,
    41  			},
    42  			expectTolerated: true,
    43  		},
    44  		{
    45  			description: "toleration and taint have the same key and effect, and operator is Exists, and taint has some value, expect tolerated",
    46  			toleration: Toleration{
    47  				Key:      "foo",
    48  				Operator: TolerationOpExists,
    49  				Effect:   TaintEffectNoSchedule,
    50  			},
    51  			taint: Taint{
    52  				Key:    "foo",
    53  				Value:  "bar",
    54  				Effect: TaintEffectNoSchedule,
    55  			},
    56  			expectTolerated: true,
    57  		},
    58  		{
    59  			description: "toleration and taint have the same effect, toleration has empty key and operator is Exists, means match all taints, expect tolerated",
    60  			toleration: Toleration{
    61  				Key:      "",
    62  				Operator: TolerationOpExists,
    63  				Effect:   TaintEffectNoSchedule,
    64  			},
    65  			taint: Taint{
    66  				Key:    "foo",
    67  				Value:  "bar",
    68  				Effect: TaintEffectNoSchedule,
    69  			},
    70  			expectTolerated: true,
    71  		},
    72  		{
    73  			description: "toleration and taint have the same key, effect and value, and operator is Equal, expect tolerated",
    74  			toleration: Toleration{
    75  				Key:      "foo",
    76  				Operator: TolerationOpEqual,
    77  				Value:    "bar",
    78  				Effect:   TaintEffectNoSchedule,
    79  			},
    80  			taint: Taint{
    81  				Key:    "foo",
    82  				Value:  "bar",
    83  				Effect: TaintEffectNoSchedule,
    84  			},
    85  			expectTolerated: true,
    86  		},
    87  		{
    88  			description: "toleration and taint have the same key and effect, but different values, and operator is Equal, expect not tolerated",
    89  			toleration: Toleration{
    90  				Key:      "foo",
    91  				Operator: TolerationOpEqual,
    92  				Value:    "value1",
    93  				Effect:   TaintEffectNoSchedule,
    94  			},
    95  			taint: Taint{
    96  				Key:    "foo",
    97  				Value:  "value2",
    98  				Effect: TaintEffectNoSchedule,
    99  			},
   100  			expectTolerated: false,
   101  		},
   102  		{
   103  			description: "toleration and taint have the same key and value, but different effects, and operator is Equal, expect not tolerated",
   104  			toleration: Toleration{
   105  				Key:      "foo",
   106  				Operator: TolerationOpEqual,
   107  				Value:    "bar",
   108  				Effect:   TaintEffectNoSchedule,
   109  			},
   110  			taint: Taint{
   111  				Key:    "foo",
   112  				Value:  "bar",
   113  				Effect: TaintEffectNoExecute,
   114  			},
   115  			expectTolerated: false,
   116  		},
   117  	}
   118  	for _, tc := range testCases {
   119  		if tolerated := tc.toleration.ToleratesTaint(&tc.taint); tc.expectTolerated != tolerated {
   120  			t.Errorf("[%s] expect %v, got %v: toleration %+v, taint %s", tc.description, tc.expectTolerated, tolerated, tc.toleration, tc.taint.ToString())
   121  		}
   122  	}
   123  }
   124
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