// so that those files (in the runtime/library) can change without affecting
// this test.
//
// These choices can be reversed with -i (inlining on) and -r (repeats detected) which
// will also cause their own failures against the expected outputs.  Note that if the compiler
// and debugger were behaving properly, the inlined code and repeated lines would not appear,

		t.Fatalf("Drivers = %v, want sorted list with at least [invalid, test]", all)
	}
}

// hook to simulate connection failures
var hookOpenErr struct {
	sync.Mutex
	fn func() error
}

func setHookOpenErr(fn func() error) {
	hookOpenErr.Lock()
	defer hookOpenErr.Unlock()
	hookOpenErr.fn = fn
}