forked from flashcat/categraf
23 lines
415 B
Go
23 lines
415 B
Go
// Copyright 2021 Google Inc. All Rights Reserved.
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// This file is available under the Apache license.
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package testutil
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import (
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"net"
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"testing"
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)
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func FreePort(tb testing.TB) int {
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tb.Helper()
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addr, err := net.ResolveTCPAddr("tcp", "[::]:0")
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if err != nil {
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tb.Fatal(err)
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}
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l, err := net.ListenTCP("tcp", addr)
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if err != nil {
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tb.Fatal(err)
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}
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defer l.Close()
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return l.Addr().(*net.TCPAddr).Port
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}
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