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Copy pathretry_test.go
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143 lines (120 loc) 路 2.75 KB
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package lo
import (
"fmt"
"testing"
"time"
"github.com/stretchr/testify/assert"
)
func TestAttempt(t *testing.T) {
is := assert.New(t)
err := fmt.Errorf("failed")
iter1, err1 := Attempt(42, func(i int) error {
return nil
})
iter2, err2 := Attempt(42, func(i int) error {
if i == 5 {
return nil
}
return err
})
iter3, err3 := Attempt(2, func(i int) error {
if i == 5 {
return nil
}
return err
})
iter4, err4 := Attempt(0, func(i int) error {
if i < 42 {
return err
}
return nil
})
is.Equal(iter1, 1)
is.Equal(err1, nil)
is.Equal(iter2, 6)
is.Equal(err2, nil)
is.Equal(iter3, 2)
is.Equal(err3, err)
is.Equal(iter4, 43)
is.Equal(err4, nil)
}
func TestAttemptWithDelay(t *testing.T) {
is := assert.New(t)
err := fmt.Errorf("failed")
iter1, dur1, err1 := AttemptWithDelay(42, 10*time.Millisecond, func(i int, d time.Duration) error {
return nil
})
iter2, dur2, err2 := AttemptWithDelay(42, 10*time.Millisecond, func(i int, d time.Duration) error {
if i == 5 {
return nil
}
return err
})
iter3, dur3, err3 := AttemptWithDelay(2, 10*time.Millisecond, func(i int, d time.Duration) error {
if i == 5 {
return nil
}
return err
})
iter4, dur4, err4 := AttemptWithDelay(0, 10*time.Millisecond, func(i int, d time.Duration) error {
if i < 10 {
return err
}
return nil
})
is.Equal(iter1, 1)
is.Greater(dur1, 0*time.Millisecond)
is.Less(dur1, 1*time.Millisecond)
is.Equal(err1, nil)
is.Equal(iter2, 6)
is.Greater(dur2, 50*time.Millisecond)
is.Less(dur2, 60*time.Millisecond)
is.Equal(err2, nil)
is.Equal(iter3, 2)
is.Greater(dur3, 10*time.Millisecond)
is.Less(dur3, 20*time.Millisecond)
is.Equal(err3, err)
is.Equal(iter4, 11)
is.Greater(dur4, 100*time.Millisecond)
is.Less(dur4, 115*time.Millisecond)
is.Equal(err4, nil)
}
func TestDebounce(t *testing.T) {
f1 := func() {
println("1. Called once after 10ms when func stopped invoking!")
}
f2 := func() {
println("2. Called once after 10ms when func stopped invoking!")
}
f3 := func() {
println("3. Called once after 10ms when func stopped invoking!")
}
d1, _ := NewDebounce(10*time.Millisecond, f1)
// execute 3 times
for i := 0; i < 3; i++ {
for j := 0; j < 10; j++ {
d1()
}
time.Sleep(20 * time.Millisecond)
}
d2, _ := NewDebounce(10*time.Millisecond, f2)
// execute once because it is always invoked and only last invoke is worked after 100ms
for i := 0; i < 3; i++ {
for j := 0; j < 5; j++ {
d2()
}
time.Sleep(5 * time.Millisecond)
}
time.Sleep(10 * time.Millisecond)
// execute once because it is canceled after 200ms.
d3, cancel := NewDebounce(10*time.Millisecond, f3)
for i := 0; i < 3; i++ {
for j := 0; j < 10; j++ {
d3()
}
time.Sleep(20 * time.Millisecond)
if i == 0 {
cancel()
}
}
}