You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
98 lines
2.0 KiB
Go
98 lines
2.0 KiB
Go
package threading
|
|
|
|
import (
|
|
"math/rand"
|
|
"sort"
|
|
"sync"
|
|
"testing"
|
|
"time"
|
|
|
|
"github.com/stretchr/testify/assert"
|
|
)
|
|
|
|
func TestStableRunner(t *testing.T) {
|
|
size := bufSize * 2
|
|
rand.Seed(time.Now().UnixNano())
|
|
runner := NewStableRunner(func(v int) float64 {
|
|
if v == 0 {
|
|
time.Sleep(time.Millisecond * 100)
|
|
} else {
|
|
time.Sleep(time.Millisecond * time.Duration(rand.Intn(10)))
|
|
}
|
|
return float64(v) + 0.5
|
|
})
|
|
|
|
var waitGroup sync.WaitGroup
|
|
waitGroup.Add(1)
|
|
go func() {
|
|
for i := 0; i < size; i++ {
|
|
assert.NoError(t, runner.Push(i))
|
|
}
|
|
runner.Wait()
|
|
waitGroup.Done()
|
|
}()
|
|
|
|
values := make([]float64, size)
|
|
for i := 0; i < size; i++ {
|
|
var err error
|
|
values[i], err = runner.Get()
|
|
assert.NoError(t, err)
|
|
time.Sleep(time.Millisecond)
|
|
}
|
|
|
|
assert.True(t, sort.Float64sAreSorted(values))
|
|
waitGroup.Wait()
|
|
|
|
assert.Equal(t, ErrRunnerClosed, runner.Push(1))
|
|
_, err := runner.Get()
|
|
assert.Equal(t, ErrRunnerClosed, err)
|
|
}
|
|
|
|
func FuzzStableRunner(f *testing.F) {
|
|
rand.Seed(time.Now().UnixNano())
|
|
f.Add(uint64(bufSize))
|
|
f.Fuzz(func(t *testing.T, n uint64) {
|
|
runner := NewStableRunner(func(v int) float64 {
|
|
if v == 0 {
|
|
time.Sleep(time.Millisecond * 100)
|
|
} else {
|
|
time.Sleep(time.Millisecond * time.Duration(rand.Intn(10)))
|
|
}
|
|
return float64(v) + 0.5
|
|
})
|
|
|
|
go func() {
|
|
for i := 0; i < int(n); i++ {
|
|
assert.NoError(t, runner.Push(i))
|
|
}
|
|
}()
|
|
|
|
values := make([]float64, n)
|
|
for i := 0; i < int(n); i++ {
|
|
var err error
|
|
values[i], err = runner.Get()
|
|
assert.NoError(t, err)
|
|
}
|
|
|
|
runner.Wait()
|
|
assert.True(t, sort.Float64sAreSorted(values))
|
|
|
|
// make sure returning errors after runner is closed
|
|
assert.Equal(t, ErrRunnerClosed, runner.Push(1))
|
|
_, err := runner.Get()
|
|
assert.Equal(t, ErrRunnerClosed, err)
|
|
})
|
|
}
|
|
|
|
func BenchmarkStableRunner(b *testing.B) {
|
|
runner := NewStableRunner(func(v int) float64 {
|
|
time.Sleep(time.Millisecond * time.Duration(rand.Intn(10)))
|
|
return float64(v) + 0.5
|
|
})
|
|
|
|
for i := 0; i < b.N; i++ {
|
|
_ = runner.Push(i)
|
|
_, _ = runner.Get()
|
|
}
|
|
}
|