})
	if allocs != 0 {
		t.Errorf("expected 0 allocs for File.WriteString, got %v", allocs)
	}
}

// Test that it's OK to have parallel I/O and Close on a pipe.
func TestPipeIOCloseRace(t *testing.T) {
	// Skip on wasm, which doesn't have pipes.
	if runtime.GOOS == "js" || runtime.GOOS == "wasip1" {
		t.Skipf("skipping on %s: no pipes", runtime.GOOS)
	}
	t.Parallel()