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dial_17_test.go
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dial_17_test.go
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// Copyright (c) 2015 Uber Technologies, Inc.
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
//go:build go1.7
// +build go1.7
package tchannel_test
import (
"strings"
"testing"
"time"
. "github.com/uber/tchannel-go"
"github.com/stretchr/testify/assert"
"github.com/uber/tchannel-go/testutils"
)
func TestNetDialCancelContext(t *testing.T) {
// timeoutHostPort uses a blackholed address (RFC 6890) with a port
// reserved for documentation. This address should always cause a timeout.
const timeoutHostPort = "192.18.0.254:44444"
timeoutPeriod := testutils.Timeout(50 * time.Millisecond)
client := testutils.NewClient(t, nil)
defer client.Close()
started := time.Now()
ctx, cancel := NewContext(time.Minute)
go func() {
time.Sleep(timeoutPeriod)
cancel()
}()
err := client.Ping(ctx, timeoutHostPort)
if !assert.Error(t, err, "Ping to blackhole address should fail") {
return
}
if strings.Contains(err.Error(), "network is unreachable") {
t.Skipf("Skipping test, as network interface may not be available")
}
d := time.Since(started)
assert.Equal(t, ErrCodeCancelled, GetSystemErrorCode(err), "Ping expected to fail with context cancelled")
assert.True(t, d < 2*timeoutPeriod, "Timeout should take less than %v, took %v", 2*timeoutPeriod, d)
}