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