frostfs-node/pkg/morph/timer/block_test.go

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package timer_test
import (
"testing"
"github.com/TrueCloudLab/frostfs-node/pkg/morph/timer"
"github.com/stretchr/testify/require"
)
func tickN(t *timer.BlockTimer, n uint32) {
for i := uint32(0); i < n; i++ {
t.Tick(0)
}
}
// This test emulates inner ring handling of a new epoch and a new block.
// "resetting" consists of ticking the current height as well and invoking `Reset`.
func TestIRBlockTimer_Reset(t *testing.T) {
var baseCounter [2]int
blockDur := uint32(3)
bt1 := timer.NewBlockTimer(
func() (uint32, error) { return blockDur, nil },
func() { baseCounter[0]++ })
bt2 := timer.NewBlockTimer(
func() (uint32, error) { return blockDur, nil },
func() { baseCounter[1]++ })
require.NoError(t, bt1.Reset())
require.NoError(t, bt2.Reset())
run := func(bt *timer.BlockTimer, direct bool) {
if direct {
bt.Tick(1)
require.NoError(t, bt.Reset())
bt.Tick(1)
} else {
bt.Tick(1)
bt.Tick(1)
require.NoError(t, bt.Reset())
}
bt.Tick(2)
bt.Tick(3)
}
run(bt1, true)
run(bt2, false)
require.Equal(t, baseCounter[0], baseCounter[1])
}
func TestBlockTimer(t *testing.T) {
blockDur := uint32(10)
baseCallCounter := uint32(0)
bt := timer.NewBlockTimer(timer.StaticBlockMeter(blockDur), func() {
baseCallCounter++
})
require.NoError(t, bt.Reset())
intervalNum := uint32(7)
tickN(bt, intervalNum*blockDur)
require.Equal(t, intervalNum, uint32(baseCallCounter))
// add half-interval handler
halfCallCounter := uint32(0)
bt.OnDelta(1, 2, func() {
halfCallCounter++
})
// add double interval handler
doubleCallCounter := uint32(0)
bt.OnDelta(2, 1, func() {
doubleCallCounter++
})
require.NoError(t, bt.Reset())
baseCallCounter = 0
intervalNum = 20
tickN(bt, intervalNum*blockDur)
require.Equal(t, intervalNum, uint32(halfCallCounter))
require.Equal(t, intervalNum, uint32(baseCallCounter))
require.Equal(t, intervalNum/2, uint32(doubleCallCounter))
}
func TestDeltaPulse(t *testing.T) {
blockDur := uint32(9)
baseCallCounter := uint32(0)
bt := timer.NewBlockTimer(timer.StaticBlockMeter(blockDur), func() {
baseCallCounter++
})
deltaCallCounter := uint32(0)
div := uint32(3)
bt.OnDelta(1, div, func() {
deltaCallCounter++
}, timer.WithPulse())
require.NoError(t, bt.Reset())
intervalNum := uint32(7)
tickN(bt, intervalNum*blockDur)
require.Equal(t, intervalNum, uint32(baseCallCounter))
require.Equal(t, intervalNum*div, uint32(deltaCallCounter))
}
func TestDeltaReset(t *testing.T) {
blockDur := uint32(6)
baseCallCounter := 0
bt := timer.NewBlockTimer(timer.StaticBlockMeter(blockDur), func() {
baseCallCounter++
})
detlaCallCounter := 0
bt.OnDelta(1, 3, func() {
detlaCallCounter++
})
require.NoError(t, bt.Reset())
tickN(bt, 6)
require.Equal(t, 1, baseCallCounter)
require.Equal(t, 1, detlaCallCounter)
require.NoError(t, bt.Reset())
tickN(bt, 3)
require.Equal(t, 2, detlaCallCounter)
}
func TestNewOneTickTimer(t *testing.T) {
blockDur := uint32(1)
baseCallCounter := 0
bt := timer.NewOneTickTimer(timer.StaticBlockMeter(blockDur), func() {
baseCallCounter++
})
require.NoError(t, bt.Reset())
tickN(bt, 10)
require.Equal(t, 1, baseCallCounter) // happens once no matter what
t.Run("zero duration", func(t *testing.T) {
blockDur = uint32(0)
baseCallCounter = 0
bt = timer.NewOneTickTimer(timer.StaticBlockMeter(blockDur), func() {
baseCallCounter++
})
require.NoError(t, bt.Reset())
tickN(bt, 10)
require.Equal(t, 1, baseCallCounter)
})
t.Run("delta without pulse", func(t *testing.T) {
blockDur = uint32(10)
baseCallCounter = 0
bt = timer.NewOneTickTimer(timer.StaticBlockMeter(blockDur), func() {
baseCallCounter++
})
detlaCallCounter := 0
bt.OnDelta(1, 10, func() {
detlaCallCounter++
})
require.NoError(t, bt.Reset())
tickN(bt, 10)
require.Equal(t, 1, baseCallCounter)
require.Equal(t, 1, detlaCallCounter)
tickN(bt, 10) // 10 more ticks must not affect counters
require.Equal(t, 1, baseCallCounter)
require.Equal(t, 1, detlaCallCounter)
})
}
func TestBlockTimer_TickSameHeight(t *testing.T) {
var baseCounter, deltaCounter int
blockDur := uint32(2)
bt := timer.NewBlockTimer(
func() (uint32, error) { return blockDur, nil },
func() { baseCounter++ })
bt.OnDelta(2, 1, func() {
deltaCounter++
})
require.NoError(t, bt.Reset())
check := func(t *testing.T, h uint32, base, delta int) {
for i := 0; i < 2*int(blockDur); i++ {
bt.Tick(h)
require.Equal(t, base, baseCounter)
require.Equal(t, delta, deltaCounter)
}
}
check(t, 1, 0, 0)
check(t, 2, 1, 0)
check(t, 3, 1, 0)
check(t, 4, 2, 1)
t.Run("works the same way after `Reset()`", func(t *testing.T) {
t.Run("same block duration", func(t *testing.T) {
require.NoError(t, bt.Reset())
baseCounter = 0
deltaCounter = 0
check(t, 1, 0, 0)
check(t, 2, 1, 0)
check(t, 3, 1, 0)
check(t, 4, 2, 1)
})
t.Run("different block duration", func(t *testing.T) {
blockDur = 3
require.NoError(t, bt.Reset())
baseCounter = 0
deltaCounter = 0
check(t, 1, 0, 0)
check(t, 2, 0, 0)
check(t, 3, 1, 0)
check(t, 4, 1, 0)
check(t, 5, 1, 0)
check(t, 6, 2, 1)
})
})
}