Files
2026-07-13 13:00:08 +08:00

44 lines
1.2 KiB
Go

package plugin
import (
"testing"
"time"
)
// TestWaitWithBudgetReturnsWithinBudget pins that the budgeted reap helper
// returns even when the underlying wait never completes. withStderr calls this
// while holding callMu, and a surviving grandchild can keep cmd.Wait blocked
// forever — without the budget every future call on the transport would wedge.
func TestWaitWithBudgetReturnsWithinBudget(t *testing.T) {
blocked := make(chan struct{})
t.Cleanup(func() { close(blocked) }) // let the abandoned goroutine exit
done := make(chan struct{})
go func() {
waitWithBudget(func() { <-blocked }, 100*time.Millisecond)
close(done)
}()
select {
case <-done:
case <-time.After(2 * time.Second):
t.Fatal("waitWithBudget did not return within its budget — callMu would wedge")
}
}
// TestWaitWithBudgetReturnsEarlyWhenWaitCompletes pins that a fast wait returns
// promptly rather than always paying the full budget.
func TestWaitWithBudgetReturnsEarlyWhenWaitCompletes(t *testing.T) {
done := make(chan struct{})
go func() {
waitWithBudget(func() {}, 10*time.Second)
close(done)
}()
select {
case <-done:
case <-time.After(2 * time.Second):
t.Fatal("waitWithBudget blocked on a wait that already completed")
}
}