ooni-probe-cli/internal/engine/atomicx/atomicx_test.go

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package atomicx_test
import (
"testing"
"time"
"github.com/ooni/probe-cli/v3/internal/engine/atomicx"
)
func TestInt64(t *testing.T) {
// TODO(bassosimone): how to write tests with race conditions
// and be confident that they're WAI? Here I hope this test is
// run with `-race` and I'm doing something that AFAICT will
// be flagged as race if we were not be using mutexes.
v := atomicx.NewInt64()
go func() {
v.Add(17)
}()
go func() {
v.Add(14)
}()
time.Sleep(1 * time.Second)
if v.Add(3) != 34 {
t.Fatal("unexpected result")
}
if v.Load() != 34 {
t.Fatal("unexpected result")
}
}
func TestFloat64(t *testing.T) {
// TODO(bassosimone): how to write tests with race conditions
// and be confident that they're WAI? Here I hope this test is
// run with `-race` and I'm doing something that AFAICT will
// be flagged as race if we were not be using mutexes.
v := atomicx.NewFloat64()
go func() {
v.Add(17.0)
}()
go func() {
v.Add(14.0)
}()
time.Sleep(1 * time.Second)
if r := v.Add(3); r < 33.9 && r > 34.1 {
t.Fatal("unexpected result")
}
if v.Load() < 33.9 && v.Load() > 34.1 {
t.Fatal("unexpected result")
}
}