mirror of
https://github.com/etcd-io/etcd.git
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51 lines
1.8 KiB
Go
51 lines
1.8 KiB
Go
// Copyright 2023 The etcd Authors
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package options
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import (
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"math/rand"
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"time"
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"go.etcd.io/etcd/tests/v3/framework/e2e"
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)
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var internalRand = rand.New(rand.NewSource(time.Now().UnixNano()))
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type ClusterOptions []e2e.EPClusterOption
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// WithClusterOptionGroups takes an array of EPClusterOption arrays, and randomly picks one EPClusterOption array when constructing the config.
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// This function is mainly used to group strongly coupled config options together, so that we can dynamically test different groups of options.
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func WithClusterOptionGroups(input ...ClusterOptions) e2e.EPClusterOption {
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return func(c *e2e.EtcdProcessClusterConfig) {
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optsPicked := input[internalRand.Intn(len(input))]
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for _, opt := range optsPicked {
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opt(c)
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}
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}
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}
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// WithSubsetOptions randomly select a subset of input options, and apply the subset to the cluster config.
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func WithSubsetOptions(input ...e2e.EPClusterOption) e2e.EPClusterOption {
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return func(c *e2e.EtcdProcessClusterConfig) {
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// selects random subsetLen (0 to len(input)) elements from the input array.
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subsetLen := internalRand.Intn(len(input) + 1)
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perm := internalRand.Perm(len(input))
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for i := 0; i < subsetLen; i++ {
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opt := input[perm[i]]
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opt(c)
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}
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}
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}
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