utils_test.go

Documentation: github.com/chaos-mesh/chaos-mesh/pkg/chaosdaemon/netem

     1  // Copyright 2020 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  // See the License for the specific language governing permissions and
    12  // limitations under the License.
    13  
    14  package netem
    15  
    16  import (
    17  	"testing"
    18  
    19  	. "github.com/onsi/gomega"
    20  
    21  	chaosdaemonpb "github.com/chaos-mesh/chaos-mesh/pkg/chaosdaemon/pb"
    22  )
    23  
    24  func TestMergeNetem(t *testing.T) {
    25  	g := NewGomegaWithT(t)
    26  
    27  	cases := []struct {
    28  		a      *chaosdaemonpb.Netem
    29  		b      *chaosdaemonpb.Netem
    30  		merged *chaosdaemonpb.Netem
    31  	}{
    32  		{nil, nil, nil}, // nil, nil -> nil
    33  		{
    34  			// no conflict
    35  			&chaosdaemonpb.Netem{Loss: 25},
    36  			&chaosdaemonpb.Netem{DelayCorr: 90},
    37  			&chaosdaemonpb.Netem{Loss: 25, DelayCorr: 90},
    38  		},
    39  		{
    40  			// pick the max
    41  			&chaosdaemonpb.Netem{Loss: 25, DelayCorr: 100.2},
    42  			&chaosdaemonpb.Netem{DelayCorr: 90},
    43  			&chaosdaemonpb.Netem{Loss: 25, DelayCorr: 100.2},
    44  		},
    45  	}
    46  
    47  	for _, tc := range cases {
    48  		m := MergeNetem(tc.a, tc.b)
    49  		g.Expect(tc.merged).Should(Equal(m))
    50  	}
    51  }
    52