34 lines
1.3 KiB
Go
34 lines
1.3 KiB
Go
// Copyright 2015 Matthew Holt and The Caddy 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 caddyhttp
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import (
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"strings"
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"testing"
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)
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// TestRandString_SameCaseExcludesZero is the regression test for the
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// randString(sameCase=true) dictionary bug where '0' was still emitted
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// despite being called out as a confusing character in the doc comment.
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func TestRandString_SameCaseExcludesZero(t *testing.T) {
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// A sample of 5000 characters makes a leaked '0' extremely unlikely
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// to go unnoticed: the dictionary is 33 characters, so the expected
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// count for any single character would be ~151 if it were present.
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s := randString(5000, true)
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if strings.ContainsRune(s, '0') {
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t.Errorf("randString(n, sameCase=true) must not emit '0'; got %q", s)
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}
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}
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