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	This is a final rewrite that removes all the global state in Hugo, which also enables the use if `t.Parallel` in tests. Updates #2701 Fixes #3016
		
			
				
	
	
		
			74 lines
		
	
	
		
			1.8 KiB
		
	
	
	
		
			Go
		
	
	
	
	
	
			
		
		
	
	
			74 lines
		
	
	
		
			1.8 KiB
		
	
	
	
		
			Go
		
	
	
	
	
	
// Copyright 2015 The Hugo Authors. All rights reserved.
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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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// 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 hugolib
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import (
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	"sync"
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	"sync/atomic"
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	"testing"
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	"github.com/stretchr/testify/assert"
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)
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func TestPageCache(t *testing.T) {
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	t.Parallel()
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	c1 := newPageCache()
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	changeFirst := func(p Pages) {
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		p[0].Description = "changed"
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	}
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	var o1 uint64
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	var o2 uint64
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	var wg sync.WaitGroup
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	var l1 sync.Mutex
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	var l2 sync.Mutex
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	var testPageSets []Pages
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	s := newTestSite(t)
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	for i := 0; i < 50; i++ {
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		testPageSets = append(testPageSets, createSortTestPages(s, i+1))
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	}
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	for j := 0; j < 100; j++ {
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		wg.Add(1)
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		go func() {
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			defer wg.Done()
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			for k, pages := range testPageSets {
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				l1.Lock()
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				p, c := c1.get("k1", pages, nil)
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				assert.Equal(t, !atomic.CompareAndSwapUint64(&o1, uint64(k), uint64(k+1)), c)
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				l1.Unlock()
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				p2, c2 := c1.get("k1", p, nil)
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				assert.True(t, c2)
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				assert.True(t, probablyEqualPages(p, p2))
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				assert.True(t, probablyEqualPages(p, pages))
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				assert.NotNil(t, p)
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				l2.Lock()
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				p3, c3 := c1.get("k2", pages, changeFirst)
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				assert.Equal(t, !atomic.CompareAndSwapUint64(&o2, uint64(k), uint64(k+1)), c3)
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				l2.Unlock()
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				assert.NotNil(t, p3)
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				assert.Equal(t, p3[0].Description, "changed")
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			}
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		}()
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	}
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	wg.Wait()
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}
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