90 lines
1.8 KiB
Go
90 lines
1.8 KiB
Go
package util
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import (
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"io/ioutil"
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"net"
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"os"
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"testing"
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"time"
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"github.com/stretchr/testify/assert"
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)
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func prepareTestDir() string {
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const dir = "./agh-test"
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_ = os.RemoveAll(dir)
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_ = os.MkdirAll(dir, 0755)
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return dir
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}
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func TestAutoHostsResolution(t *testing.T) {
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ah := AutoHosts{}
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dir := prepareTestDir()
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defer func() { _ = os.RemoveAll(dir) }()
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f, _ := ioutil.TempFile(dir, "")
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defer func() { _ = os.Remove(f.Name()) }()
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defer f.Close()
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_, _ = f.WriteString(" 127.0.0.1 host localhost \n")
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ah.Init(f.Name())
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// Update from the hosts file
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ah.updateHosts()
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// Existing host
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ips := ah.Process("localhost")
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assert.NotNil(t, ips)
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assert.Equal(t, 1, len(ips))
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assert.Equal(t, net.ParseIP("127.0.0.1"), ips[0])
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// Unknown host
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ips = ah.Process("newhost")
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assert.Nil(t, ips)
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// Test hosts file
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table := ah.List()
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ips, _ = table["host"]
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assert.NotNil(t, ips)
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assert.Equal(t, 1, len(ips))
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assert.Equal(t, "127.0.0.1", ips[0].String())
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}
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func TestAutoHostsFSNotify(t *testing.T) {
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ah := AutoHosts{}
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dir := prepareTestDir()
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defer func() { _ = os.RemoveAll(dir) }()
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f, _ := ioutil.TempFile(dir, "")
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defer func() { _ = os.Remove(f.Name()) }()
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defer f.Close()
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// Init
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_, _ = f.WriteString(" 127.0.0.1 host localhost \n")
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ah.Init(f.Name())
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ah.updateHosts()
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// Unknown host
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ips := ah.Process("newhost")
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assert.Nil(t, ips)
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// Stat monitoring for changes
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ah.Start()
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defer ah.Close()
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// Update file
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_, _ = f.WriteString("127.0.0.2 newhost\n")
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_ = f.Sync()
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// wait until fsnotify has triggerred and processed the file-modification event
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time.Sleep(50 * time.Millisecond)
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// Check if we are notified about changes
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ips = ah.Process("newhost")
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assert.NotNil(t, ips)
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assert.Equal(t, 1, len(ips))
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assert.Equal(t, "127.0.0.2", ips[0].String())
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}
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