t.Error("setting MaxPathLenZero when IsCA is false should fail")
	}

	template.BasicConstraintsValid = false
	if m := serialiseAndParse(t, template).MaxPathLen; m != 0 {
		t.Errorf("Bad MaxPathLen should be ignored if BasicConstraintsValid is false, got %d", m)
	}
}

func TestMaxPathLen(t *testing.T) {
	template := &Certificate{
		SerialNumber: big.NewInt(1),

		NotAfter:     time.Now().Add(24 * time.Hour),

		KeyUsage:              KeyUsageKeyEncipherment | KeyUsageDigitalSignature | KeyUsageCertSign,
		ExtKeyUsage:           []ExtKeyUsage{ExtKeyUsageServerAuth},
		BasicConstraintsValid: true,
		IsCA:                  isCA,
	}
	if issuer == nil {
		issuer = template
		issuerKey = priv
	}