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|
package stackless
import (
"errors"
"sync/atomic"
"testing"
"time"
)
func TestNewFuncSimple(t *testing.T) {
t.Parallel()
var n uint64
f := NewFunc(func(ctx any) {
atomic.AddUint64(&n, uint64(ctx.(int)))
})
iterations := 4 * 1024
for i := 0; i < iterations; i++ {
if !f(2) {
t.Fatalf("f mustn't return false")
}
}
if n != uint64(2*iterations) {
t.Fatalf("Unexpected n: %d. Expecting %d", n, 2*iterations)
}
}
func TestNewFuncMulti(t *testing.T) {
t.Parallel()
var n1, n2 uint64
f1 := NewFunc(func(ctx any) {
atomic.AddUint64(&n1, uint64(ctx.(int)))
})
f2 := NewFunc(func(ctx any) {
atomic.AddUint64(&n2, uint64(ctx.(int)))
})
iterations := 4 * 1024
f1Done := make(chan error, 1)
go func() {
var err error
for i := 0; i < iterations; i++ {
if !f1(3) {
err = errors.New("f1 mustn't return false")
break
}
}
f1Done <- err
}()
f2Done := make(chan error, 1)
go func() {
var err error
for i := 0; i < iterations; i++ {
if !f2(5) {
err = errors.New("f2 mustn't return false")
break
}
}
f2Done <- err
}()
select {
case err := <-f1Done:
if err != nil {
t.Fatalf("unexpected error: %v", err)
}
case <-time.After(time.Second):
t.Fatalf("timeout")
}
select {
case err := <-f2Done:
if err != nil {
t.Fatalf("unexpected error: %v", err)
}
case <-time.After(time.Second):
t.Fatalf("timeout")
}
if n1 != uint64(3*iterations) {
t.Fatalf("unexpected n1: %d. Expecting %d", n1, 3*iterations)
}
if n2 != uint64(5*iterations) {
t.Fatalf("unexpected n2: %d. Expecting %d", n2, 5*iterations)
}
}
|
