github.com/iotexproject/iotex-core@v1.14.1-rc1/testutil/wait_test.go (about)

     1  // Copyright (c) 2018 IoTeX
     2  // This source code is provided 'as is' and no warranties are given as to title or non-infringement, merchantability
     3  // or fitness for purpose and, to the extent permitted by law, all liability for your use of the code is disclaimed.
     4  // This source code is governed by Apache License 2.0 that can be found in the LICENSE file.
     5  
     6  package testutil
     7  
     8  import (
     9  	"testing"
    10  	"time"
    11  
    12  	"github.com/stretchr/testify/assert"
    13  )
    14  
    15  func TestWaitUntil(t *testing.T) {
    16  	assert := assert.New(t)
    17  	threshold := time.Now()
    18  	check1 := CheckCondition(func() (bool, error) {
    19  		return time.Now().UnixNano() > threshold.UnixNano()+int64(1000), nil
    20  	})
    21  	err := WaitUntil(time.Millisecond, time.Second, check1)
    22  	assert.Nil(err)
    23  	check2 := CheckCondition(func() (bool, error) {
    24  		return time.Now().UnixNano() > threshold.UnixNano()+int64(1000000000), nil
    25  	})
    26  	err = WaitUntil(time.Millisecond, time.Millisecond*10, check2)
    27  	assert.Equal(ErrTimeout, err)
    28  }