51 lines
1.1 KiB
Go
51 lines
1.1 KiB
Go
// Copyright 2015 PingCAP, Inc.
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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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// See the License for the specific language governing permissions and
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// limitations under the License.
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package testutil
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// CompareUnorderedStringSlice compare two string slices.
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// If a and b is exactly the same except the order, it returns true.
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// In otherwise return false.
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func CompareUnorderedStringSlice(a []string, b []string) bool {
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if a == nil && b == nil {
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return true
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}
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if a == nil || b == nil {
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return false
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}
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if len(a) != len(b) {
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return false
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}
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m := make(map[string]int, len(a))
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for _, i := range a {
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_, ok := m[i]
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if !ok {
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m[i] = 1
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} else {
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m[i]++
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}
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}
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for _, i := range b {
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_, ok := m[i]
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if !ok {
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return false
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}
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m[i]--
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if m[i] == 0 {
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delete(m, i)
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}
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}
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return len(m) == 0
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}
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