node_selector_test.go

Documentation: github.com/chaos-mesh/chaos-mesh/pkg/selector/pod

     1  // Copyright 2021 Chaos Mesh Authors.
     2  //
     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  //
     7  // http://www.apache.org/licenses/LICENSE-2.0
     8  //
     9  // Unless required by applicable law or agreed to in writing, software
    10  // distributed under the License is distributed on an "AS IS" BASIS,
    11  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    12  // See the License for the specific language governing permissions and
    13  // limitations under the License.
    14  //
    15  
    16  package pod
    17  
    18  import (
    19  	"testing"
    20  
    21  	. "github.com/onsi/gomega"
    22  	v1 "k8s.io/api/core/v1"
    23  
    24  	"github.com/chaos-mesh/chaos-mesh/pkg/selector/generic"
    25  	. "github.com/chaos-mesh/chaos-mesh/pkg/testutils"
    26  )
    27  
    28  func TestFilterPodByNode(t *testing.T) {
    29  	g := NewGomegaWithT(t)
    30  
    31  	pods := []v1.Pod{
    32  		NewPod(PodArg{Name: "p1", Namespace: "n1", Nodename: "node1"}),
    33  		NewPod(PodArg{Name: "p2", Namespace: "n2", Nodename: "node1"}),
    34  		NewPod(PodArg{Name: "p3", Namespace: "n2", Nodename: "node2"}),
    35  		NewPod(PodArg{Name: "p4", Namespace: "n4", Nodename: "node3"}),
    36  	}
    37  
    38  	nodes := []v1.Node{
    39  		NewNode("node1", map[string]string{"disktype": "ssd", "zone": "az1"}),
    40  		NewNode("node2", map[string]string{"disktype": "hdd", "zone": "az1"}),
    41  	}
    42  
    43  	node1AndNode2Selector := &nodeSelector{nodes: nodes}
    44  	emptyNodeSelector := &nodeSelector{empty: true}
    45  	noNodeSelector := &nodeSelector{}
    46  
    47  	tcs := []struct {
    48  		name     string
    49  		pod      v1.Pod
    50  		selector generic.Selector
    51  		match    bool
    52  	}{
    53  		{
    54  			name:     "filter pods from node1 and node2",
    55  			pod:      pods[0],
    56  			selector: node1AndNode2Selector,
    57  			match:    true,
    58  		}, {
    59  			name:     "filter pods from node1 and node2",
    60  			pod:      pods[2],
    61  			selector: node1AndNode2Selector,
    62  			match:    true,
    63  		}, {
    64  			name:     "filter pods from node1 and node2",
    65  			pod:      pods[3],
    66  			selector: node1AndNode2Selector,
    67  			match:    false,
    68  		}, {
    69  			name:     "empty filter",
    70  			pod:      pods[0],
    71  			selector: emptyNodeSelector,
    72  			match:    true,
    73  		}, {
    74  			name:     "filter no nodes",
    75  			pod:      pods[0],
    76  			selector: noNodeSelector,
    77  			match:    false,
    78  		},
    79  	}
    80  
    81  	for _, tc := range tcs {
    82  		g.Expect(tc.selector.Match(&tc.pod)).To(Equal(tc.match), tc.name)
    83  	}
    84  }
    85