k8s.io/kubernetes@v1.31.0-alpha.0.0.20240520171757-56147500dadc/pkg/proxy/ipvs/testing/fake_test.go (about)

     1  //go:build linux
     2  // +build linux
     3  
     4  /*
     5  Copyright 2017 The Kubernetes Authors.
     6  
     7  Licensed under the Apache License, Version 2.0 (the "License");
     8  you may not use this file except in compliance with the License.
     9  You may obtain a copy of the License at
    10  
    11      http://www.apache.org/licenses/LICENSE-2.0
    12  
    13  Unless required by applicable law or agreed to in writing, software
    14  distributed under the License is distributed on an "AS IS" BASIS,
    15  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    16  See the License for the specific language governing permissions and
    17  limitations under the License.
    18  */
    19  
    20  package testing
    21  
    22  import (
    23  	"testing"
    24  
    25  	"k8s.io/apimachinery/pkg/util/sets"
    26  	"k8s.io/kubernetes/pkg/proxy/ipvs"
    27  )
    28  
    29  // (I am unsure if this test has any value since it only tests the fake implementation)
    30  func TestSetGetLocalAddresses(t *testing.T) {
    31  	fake := NewFakeNetlinkHandle(false)
    32  	_ = ipvs.NetLinkHandle(fake) // Ensure that the interface is honored
    33  	fake.SetLocalAddresses("eth0", "1.2.3.4")
    34  	var expected, addr sets.Set[string]
    35  	expected = sets.New("1.2.3.4")
    36  	addr, _ = fake.GetLocalAddresses("eth0")
    37  	if !addr.Equal(expected) {
    38  		t.Errorf("Unexpected mismatch, expected: %v, got: %v", expected, addr)
    39  	}
    40  	addr, _ = fake.GetAllLocalAddresses()
    41  	if !addr.Equal(expected) {
    42  		t.Errorf("Unexpected mismatch, expected: %v, got: %v", expected, addr)
    43  	}
    44  	fake.SetLocalAddresses("lo", "127.0.0.1")
    45  	expected = nil
    46  	addr, _ = fake.GetLocalAddresses("lo")
    47  	if !addr.Equal(expected) {
    48  		t.Errorf("Unexpected mismatch, expected: %v, got: %v", expected, addr)
    49  	}
    50  	fake.SetLocalAddresses("kube-ipvs0", "1.2.3.4", "4.3.2.1")
    51  	addr, _ = fake.GetAllLocalAddresses()
    52  	expected = sets.New("1.2.3.4", "4.3.2.1")
    53  	if !addr.Equal(expected) {
    54  		t.Errorf("Unexpected mismatch, expected: %v, got: %v", expected, addr)
    55  	}
    56  	addr, _ = fake.GetAllLocalAddressesExcept("kube-ipvs0")
    57  	expected = sets.New("1.2.3.4")
    58  	if !addr.Equal(expected) {
    59  		t.Errorf("Unexpected mismatch, expected: %v, got: %v", expected, addr)
    60  	}
    61  }