github.com/dctrud/umoci@v0.4.3-0.20191016193643-05a1d37de015/oci/casext/utils_test.go (about)

     1  /*
     2   * umoci: Umoci Modifies Open Containers' Images
     3   * Copyright (C) 2017, 2018 SUSE LLC.
     4   *
     5   * Licensed under the Apache License, Version 2.0 (the "License");
     6   * you may not use this file except in compliance with the License.
     7   * You may obtain a copy of the License at
     8   *
     9   *    http://www.apache.org/licenses/LICENSE-2.0
    10   *
    11   * Unless required by applicable law or agreed to in writing, software
    12   * distributed under the License is distributed on an "AS IS" BASIS,
    13   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    14   * See the License for the specific language governing permissions and
    15   * limitations under the License.
    16   */
    17  
    18  package casext
    19  
    20  import (
    21  	"math/rand"
    22  )
    23  
    24  func randomString(n int) string {
    25  	const alpha = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ"
    26  	b := make([]byte, n)
    27  	for i := range b {
    28  		b[i] = alpha[rand.Intn(len(alpha))]
    29  	}
    30  	return string(b)
    31  }