t.Errorf("free conns = %d; want %d", g, w)
	}
}

// Issue 10886: tests that all connection attempts return when more than
// DB.maxOpen connections are in flight and the first DB.maxOpen fail.
func TestPendingConnsAfterErr(t *testing.T) {
	const (
		maxOpen = 2
		tryOpen = maxOpen*2 + 2
	)

	// No queries will be run.
	db, err := Open("test", fakeDBName)
	if err != nil {
		t.Fatalf("Open: %v", err)