93 lines
2.0 KiB
Go
93 lines
2.0 KiB
Go
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// Copyright 2018 Prometheus Team
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package cluster
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import (
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"errors"
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"net"
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"testing"
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"github.com/stretchr/testify/require"
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)
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func TestCalculateAdvertiseAddress(t *testing.T) {
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old := getPrivateAddress
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defer func() {
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getPrivateAddress = old
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}()
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cases := []struct {
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fn getPrivateIPFunc
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bind, advertise string
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expectedIP net.IP
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err bool
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}{
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{
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bind: "192.0.2.1",
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advertise: "",
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expectedIP: net.ParseIP("192.0.2.1"),
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err: false,
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},
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{
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bind: "192.0.2.1",
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advertise: "192.0.2.2",
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expectedIP: net.ParseIP("192.0.2.2"),
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err: false,
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},
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{
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fn: func() (string, error) { return "192.0.2.1", nil },
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bind: "0.0.0.0",
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advertise: "",
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expectedIP: net.ParseIP("192.0.2.1"),
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err: false,
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},
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{
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fn: func() (string, error) { return "", errors.New("some error") },
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bind: "0.0.0.0",
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advertise: "",
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err: true,
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},
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{
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fn: func() (string, error) { return "invalid", nil },
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bind: "0.0.0.0",
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advertise: "",
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err: true,
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},
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{
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fn: func() (string, error) { return "", nil },
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bind: "0.0.0.0",
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advertise: "",
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err: true,
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},
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}
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for _, c := range cases {
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getPrivateAddress = c.fn
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got, err := calculateAdvertiseAddress(c.bind, c.advertise)
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if c.err {
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require.Error(t, err)
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} else {
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require.NoError(t, err)
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require.Equal(t, c.expectedIP.String(), got.String())
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}
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}
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}
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