github.com/lfch/etcd-io/tests/v3@v3.0.0-20221004140520-eac99acd3e9d/functional/tester/utils.go (about)

     1  // Copyright 2018 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 tester
    16  
    17  import (
    18  	"fmt"
    19  	"math/rand"
    20  	"net"
    21  	"net/url"
    22  	"strings"
    23  )
    24  
    25  func isValidURL(u string) bool {
    26  	_, err := url.Parse(u)
    27  	return err == nil
    28  }
    29  
    30  func getPort(addr string) (port string, err error) {
    31  	urlAddr, err := url.Parse(addr)
    32  	if err != nil {
    33  		return "", err
    34  	}
    35  	_, port, err = net.SplitHostPort(urlAddr.Host)
    36  	if err != nil {
    37  		return "", err
    38  	}
    39  	return port, nil
    40  }
    41  
    42  func getSameValue(vals map[string]int64) bool {
    43  	var rv int64
    44  	for _, v := range vals {
    45  		if rv == 0 {
    46  			rv = v
    47  		}
    48  		if rv != v {
    49  			return false
    50  		}
    51  	}
    52  	return true
    53  }
    54  
    55  func max(n1, n2 int64) int64 {
    56  	if n1 > n2 {
    57  		return n1
    58  	}
    59  	return n2
    60  }
    61  
    62  func errsToError(errs []error) error {
    63  	if len(errs) == 0 {
    64  		return nil
    65  	}
    66  	stringArr := make([]string, len(errs))
    67  	for i, err := range errs {
    68  		stringArr[i] = err.Error()
    69  	}
    70  	return fmt.Errorf(strings.Join(stringArr, ", "))
    71  }
    72  
    73  func randBytes(size int) []byte {
    74  	data := make([]byte, size)
    75  	for i := 0; i < size; i++ {
    76  		data[i] = byte(int('a') + rand.Intn(26))
    77  	}
    78  	return data
    79  }