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// Copyright 2021 The Hugo Authors. All rights reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package navigation
import (
"sync"
"sync/atomic"
"testing"
qt "github.com/frankban/quicktest"
)
func createSortTestMenu(num int) Menu {
menu := make(Menu, num)
for i := 0; i < num; i++ {
m := &MenuEntry{}
menu[i] = m
}
return menu
}
func TestMenuCache(t *testing.T) {
t.Parallel()
c := qt.New(t)
c1 := newMenuCache()
changeFirst := func(m Menu) {
m[0].title = "changed"
}
var o1 uint64
var o2 uint64
var wg sync.WaitGroup
var l1 sync.Mutex
var l2 sync.Mutex
var testMenuSets []Menu
for i := 0; i < 50; i++ {
testMenuSets = append(testMenuSets, createSortTestMenu(i+1))
}
for j := 0; j < 100; j++ {
wg.Add(1)
go func() {
defer wg.Done()
for k, menu := range testMenuSets {
l1.Lock()
m, ca := c1.get("k1", nil, menu)
c.Assert(ca, qt.Equals, !atomic.CompareAndSwapUint64(&o1, uint64(k), uint64(k+1)))
l1.Unlock()
m2, c2 := c1.get("k1", nil, m)
c.Assert(c2, qt.Equals, true)
c.Assert(menuEqual(m, m2), qt.Equals, true)
c.Assert(menuEqual(m, menu), qt.Equals, true)
c.Assert(m, qt.Not(qt.IsNil))
l2.Lock()
m3, c3 := c1.get("k2", changeFirst, menu)
c.Assert(c3, qt.Equals, !atomic.CompareAndSwapUint64(&o2, uint64(k), uint64(k+1)))
l2.Unlock()
c.Assert(m3, qt.Not(qt.IsNil))
c.Assert("changed", qt.Equals, m3[0].title)
}
}()
}
wg.Wait()
}
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