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// Copyright 2018 The dexon-consensus Authors
// This file is part of the dexon-consensus library.
//
// The dexon-consensus library is free software: you can redistribute it
// and/or modify it under the terms of the GNU Lesser General Public License as
// published by the Free Software Foundation, either version 3 of the License,
// or (at your option) any later version.
//
// The dexon-consensus library is distributed in the hope that it will be
// useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser
// General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with the dexon-consensus library. If not, see
// <http://www.gnu.org/licenses/>.
package common
import (
"math/rand"
"testing"
"github.com/stretchr/testify/suite"
)
type EventTestSuite struct {
suite.Suite
}
func (s *EventTestSuite) TestHeightEvent() {
event := NewEvent()
triggered := make(chan int, 100)
trigger := func(id int) func(uint64) {
return func(uint64) {
triggered <- id
}
}
event.RegisterHeight(100, trigger(0))
event.NotifyHeight(0)
s.Len(triggered, 0)
event.NotifyHeight(150)
s.Len(triggered, 1)
triggered = make(chan int, 100)
event.NotifyHeight(150)
s.Len(triggered, 0)
event.RegisterHeight(100, trigger(0))
event.RegisterHeight(100, trigger(0))
event.RegisterHeight(100, trigger(0))
event.RegisterHeight(100, trigger(0))
event.NotifyHeight(150)
s.Len(triggered, 4)
triggered = make(chan int, 100)
for i := 0; i < 10; i++ {
event.RegisterHeight(uint64(100+i*10), trigger(i))
}
event.NotifyHeight(130)
s.Require().Len(triggered, 4)
for i := 0; i < 4; i++ {
j := <-triggered
s.Equal(i, j)
}
event = NewEvent()
triggered = make(chan int, 100)
nums := make([]int, 10)
for i := range nums {
nums[i] = i
}
rand.Shuffle(len(nums), func(i, j int) {
nums[i], nums[j] = nums[j], nums[i]
})
for _, i := range nums {
event.RegisterHeight(uint64(100+i*10), trigger(i))
}
event.NotifyHeight(130)
s.Require().Len(triggered, 4)
for i := 0; i < 4; i++ {
j := <-triggered
s.Equal(i, j)
}
}
func (s *EventTestSuite) TestReset() {
event := NewEvent()
triggered := make(chan int, 100)
trigger := func(id int) func(h uint64) {
return func(uint64) {
triggered <- id
}
}
event.RegisterHeight(100, trigger(0))
event.RegisterHeight(100, trigger(0))
event.RegisterHeight(100, trigger(0))
event.RegisterHeight(100, trigger(0))
event.RegisterHeight(100, trigger(0))
event.Reset()
event.NotifyHeight(150)
s.Len(triggered, 0)
}
func TestEvent(t *testing.T) {
suite.Run(t, new(EventTestSuite))
}
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