go/flock/flock_test.go

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2024-11-11 05:36:55 +00:00
package flock
import (
"testing"
"time"
)
func Test_Lock_basic(t *testing.T) {
ch := make(chan int, 1)
f, err := Lock("/tmp/fsutil-test-lock")
if err != nil {
t.Fatal(err)
}
go func() {
time.Sleep(time.Second)
ch <- 10
Unlock(f)
}()
select {
case x := <-ch:
t.Fatal(x)
default:
}
f2, _ := Lock("/tmp/fsutil-test-lock")
defer Unlock(f2)
select {
case i := <-ch:
if i != 10 {
t.Fatal(i)
}
default:
t.Fatal("No value available.")
}
}
func Test_Lock_badPath(t *testing.T) {
_, err := Lock("./dne/file.lock")
if err == nil {
t.Fatal(err)
}
}
func TestTryLock(t *testing.T) {
lockPath := "/tmp/fsutil-test-lock"
f, err := TryLock(lockPath)
if err != nil {
t.Fatalf("%#v", err)
t.Fatal(err)
}
f2, err := TryLock(lockPath)
if err != nil {
t.Fatal(err)
}
if f2 != nil {
t.Fatal(f2)
}
if err := Unlock(f); err != nil {
t.Fatal(err)
}
}