github.com/lfch/etcd-io/tests/v3@v3.0.0-20221004140520-eac99acd3e9d/framework/testutils/execute.go (about)

     1  // Copyright 2022 The etcd Authors
     2  //
     3  // Licensed under the Apache License, Version 2.0 (the "License");
     4  // you may not use this file except in compliance with the License.
     5  // You may obtain a copy of the License at
     6  //
     7  //     http://www.apache.org/licenses/LICENSE-2.0
     8  //
     9  // Unless required by applicable law or agreed to in writing, software
    10  // distributed under the License is distributed on an "AS IS" BASIS,
    11  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    12  // See the License for the specific language governing permissions and
    13  // limitations under the License.
    14  
    15  package testutils
    16  
    17  import (
    18  	"context"
    19  	"fmt"
    20  	"testing"
    21  	"time"
    22  
    23  	"github.com/lfch/etcd-io/client/pkg/v3/testutil"
    24  )
    25  
    26  func ExecuteWithTimeout(t *testing.T, timeout time.Duration, f func()) {
    27  	ctx, cancel := context.WithTimeout(context.Background(), timeout)
    28  	defer cancel()
    29  	ExecuteUntil(ctx, t, f)
    30  }
    31  
    32  func ExecuteUntil(ctx context.Context, t *testing.T, f func()) {
    33  	deadline, deadlineSet := ctx.Deadline()
    34  	timeout := time.Until(deadline)
    35  	donec := make(chan struct{})
    36  	go func() {
    37  		defer close(donec)
    38  		f()
    39  	}()
    40  
    41  	select {
    42  	case <-ctx.Done():
    43  		msg := ctx.Err().Error()
    44  		if deadlineSet {
    45  			msg = fmt.Sprintf("test timed out after %v, err: %v", timeout, msg)
    46  		}
    47  		testutil.FatalStack(t, msg)
    48  	case <-donec:
    49  	}
    50  }