node_name_test.go

Documentation: k8s.io/kubernetes/pkg/scheduler/framework/plugins/nodename

     1  /*
     2  Copyright 2019 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 nodename
    18  
    19  import (
    20  	"reflect"
    21  	"testing"
    22  
    23  	v1 "k8s.io/api/core/v1"
    24  	"k8s.io/kubernetes/pkg/scheduler/framework"
    25  	st "k8s.io/kubernetes/pkg/scheduler/testing"
    26  	"k8s.io/kubernetes/test/utils/ktesting"
    27  )
    28  
    29  func TestNodeName(t *testing.T) {
    30  	tests := []struct {
    31  		pod        *v1.Pod
    32  		node       *v1.Node
    33  		name       string
    34  		wantStatus *framework.Status
    35  	}{
    36  		{
    37  			pod:  &v1.Pod{},
    38  			node: &v1.Node{},
    39  			name: "no host specified",
    40  		},
    41  		{
    42  			pod:  st.MakePod().Node("foo").Obj(),
    43  			node: st.MakeNode().Name("foo").Obj(),
    44  			name: "host matches",
    45  		},
    46  		{
    47  			pod:        st.MakePod().Node("bar").Obj(),
    48  			node:       st.MakeNode().Name("foo").Obj(),
    49  			name:       "host doesn't match",
    50  			wantStatus: framework.NewStatus(framework.UnschedulableAndUnresolvable, ErrReason),
    51  		},
    52  	}
    53  
    54  	for _, test := range tests {
    55  		t.Run(test.name, func(t *testing.T) {
    56  			nodeInfo := framework.NewNodeInfo()
    57  			nodeInfo.SetNode(test.node)
    58  			_, ctx := ktesting.NewTestContext(t)
    59  			p, err := New(ctx, nil, nil)
    60  			if err != nil {
    61  				t.Fatalf("creating plugin: %v", err)
    62  			}
    63  			gotStatus := p.(framework.FilterPlugin).Filter(ctx, nil, test.pod, nodeInfo)
    64  			if !reflect.DeepEqual(gotStatus, test.wantStatus) {
    65  				t.Errorf("status does not match: %v, want: %v", gotStatus, test.wantStatus)
    66  			}
    67  		})
    68  	}
    69  }
    70
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