t.Errorf(`%s: Unexpected error: "%s"`, id, err)
		} else if size != c.size {
			t.Errorf(`%s: Unmatched key size: expected %v but got "%v"`, id, c.size, size)
		}
	}
}

func TestIsSupportedECPrivateKey(t *testing.T) {
	_, ed25519PrivKey, _ := ed25519.GenerateKey(nil)
	ecdsaPrivKeyP224, _ := ecdsa.GenerateKey(elliptic.P224(), rand.Reader)
	ecdsaPrivKeyP256, _ := ecdsa.GenerateKey(elliptic.P256(), rand.Reader)