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|
package debounce_test
import (
"fmt"
"sync"
"sync/atomic"
"testing"
"time"
"github.com/bep/debounce"
)
func TestDebounce(t *testing.T) {
var (
counter1 uint64
counter2 uint64
)
f1 := func() {
atomic.AddUint64(&counter1, 1)
}
f2 := func() {
atomic.AddUint64(&counter2, 1)
}
f3 := func() {
atomic.AddUint64(&counter2, 2)
}
debounced := debounce.New(100 * time.Millisecond)
for i := 0; i < 3; i++ {
for j := 0; j < 10; j++ {
debounced(f1)
}
time.Sleep(200 * time.Millisecond)
}
for i := 0; i < 4; i++ {
for j := 0; j < 10; j++ {
debounced(f2)
}
for j := 0; j < 10; j++ {
debounced(f3)
}
time.Sleep(200 * time.Millisecond)
}
c1 := int(atomic.LoadUint64(&counter1))
c2 := int(atomic.LoadUint64(&counter2))
if c1 != 3 {
t.Error("Expected count 3, was", c1)
}
if c2 != 8 {
t.Error("Expected count 8, was", c2)
}
}
func TestDebounceConcurrentAdd(t *testing.T) {
var wg sync.WaitGroup
var flag uint64
debounced := debounce.New(100 * time.Millisecond)
for i := 0; i < 10; i++ {
wg.Add(1)
go func() {
defer wg.Done()
debounced(func() {
atomic.CompareAndSwapUint64(&flag, 0, 1)
})
}()
}
wg.Wait()
time.Sleep(500 * time.Millisecond)
c := int(atomic.LoadUint64(&flag))
if c != 1 {
t.Error("Flag not set")
}
}
// Issue #1
func TestDebounceDelayed(t *testing.T) {
var (
counter1 uint64
)
f1 := func() {
atomic.AddUint64(&counter1, 1)
}
debounced := debounce.New(100 * time.Millisecond)
time.Sleep(110 * time.Millisecond)
debounced(f1)
time.Sleep(200 * time.Millisecond)
c1 := int(atomic.LoadUint64(&counter1))
if c1 != 1 {
t.Error("Expected count 1, was", c1)
}
}
func BenchmarkDebounce(b *testing.B) {
var counter uint64
f := func() {
atomic.AddUint64(&counter, 1)
}
debounced := debounce.New(100 * time.Millisecond)
b.ResetTimer()
for i := 0; i < b.N; i++ {
debounced(f)
}
c := int(atomic.LoadUint64(&counter))
if c != 0 {
b.Fatal("Expected count 0, was", c)
}
}
func ExampleNew() {
var counter uint64
f := func() {
atomic.AddUint64(&counter, 1)
}
debounced := debounce.New(100 * time.Millisecond)
for i := 0; i < 3; i++ {
for j := 0; j < 10; j++ {
debounced(f)
}
time.Sleep(200 * time.Millisecond)
}
c := int(atomic.LoadUint64(&counter))
fmt.Println("Counter is", c)
// Output: Counter is 3
}
|
