github.com/mysteriumnetwork/node@v0.0.0-20240516044423-365054f76801/e2e/contition_checker.go (about)

     1  /*
     2   * Copyright (C) 2017 The "MysteriumNetwork/node" Authors.
     3   *
     4   * This program is free software: you can redistribute it and/or modify
     5   * it under the terms of the GNU General Public License as published by
     6   * the Free Software Foundation, either version 3 of the License, or
     7   * (at your option) any later version.
     8   *
     9   * This program is distributed in the hope that it will be useful,
    10   * but WITHOUT ANY WARRANTY; without even the implied warranty of
    11   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    12   * GNU General Public License for more details.
    13   *
    14   * You should have received a copy of the GNU General Public License
    15   * along with this program.  If not, see <http://www.gnu.org/licenses/>.
    16   */
    17  
    18  package e2e
    19  
    20  import (
    21  	"time"
    22  
    23  	"github.com/pkg/errors"
    24  	"github.com/rs/zerolog/log"
    25  )
    26  
    27  type conditionChecker func() (bool, error)
    28  
    29  func waitForCondition(checkFunc conditionChecker) error {
    30  	return waitForConditionFor(10*time.Second, checkFunc)
    31  }
    32  
    33  func waitForConditionFor(duration time.Duration, checkFunc conditionChecker) error {
    34  	timeBegin := time.Now()
    35  	for {
    36  		state, err := checkFunc()
    37  		durationWait := time.Since(timeBegin)
    38  		switch {
    39  		case err != nil:
    40  			log.Warn().Err(err).Msg("Error on waiting for condition.")
    41  		case state:
    42  			return nil
    43  		case durationWait > duration:
    44  			return errors.Errorf("state was still false after %s", durationWait)
    45  		case !state:
    46  			time.Sleep(1 * time.Second)
    47  		}
    48  	}
    49  }