Files
tidb/util/context_cancel_debugger_test.go

71 lines
1.5 KiB
Go

// Copyright 2017 PingCAP, Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// See the License for the specific language governing permissions and
// limitations under the License.
package util
import (
"strings"
"testing"
"time"
"github.com/juju/errors"
"golang.org/x/net/context"
)
func testResult(ctx context.Context, cancel context.CancelFunc, t *testing.T) {
cancel()
select {
case <-ctx.Done():
default:
t.FailNow()
}
res := ctx.(*wrapResult)
if !strings.HasSuffix(res.file, "context_cancel_debugger_test.go") {
t.Errorf("wrong file information")
}
if res.line != 26 {
t.Errorf("wrong line information")
}
if errors.Cause(ctx.Err()) != context.Canceled {
t.Errorf("error should be canceled")
}
}
func TestWithCancel(t *testing.T) {
debug = true
bg := context.Background()
ctx1, cancel := WithCancel(bg)
testResult(ctx1, cancel, t)
debug = false
}
func TestWithTimeout(t *testing.T) {
debug = true
bg := context.Background()
ctx1, cancel := WithTimeout(bg, time.Second)
if ctx1.Err() != nil {
t.FailNow()
}
testResult(ctx1, cancel, t)
debug = false
ctx, _ := WithTimeout(bg, time.Second)
if _, ok := ctx.(*wrapResult); ok {
t.FailNow()
}
}