address 0.20.0-rc.1

This library aids in processing network addresses.
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use crate::{Authority, IPAddress, SocketAddress, SocketAddressV4, SocketAddressV6};

impl SocketAddressV4 {
    //! Conversions

    /// Converts the IPv4 socket address to a socket address.
    pub const fn to_socket(self) -> SocketAddress {
        SocketAddress::new(self.ip().to_ip(), self.port())
    }
}

impl SocketAddressV6 {
    //! Conversions

    /// Converts the IPv6 socket address to a socket address.
    pub const fn to_socket(self) -> SocketAddress {
        SocketAddress::new(self.ip().to_ip(), self.port())
    }
}

impl SocketAddress {
    //! Conversions

    /// Converts the socket address to an optional IPv4 socket address.
    #[must_use]
    pub const fn to_v4(self) -> Option<SocketAddressV4> {
        if let IPAddress::V4(v4) = self.ip() {
            Some(SocketAddressV4::new(v4, self.port()))
        } else {
            None
        }
    }

    /// Converts the socket address to an optional IPv6 socket address.
    #[must_use]
    pub const fn to_v6(self) -> Option<SocketAddressV6> {
        if let IPAddress::V6(v6) = self.ip() {
            Some(SocketAddressV6::new(v6, self.port()))
        } else {
            None
        }
    }

    /// Converts the socket address to an authority.
    pub const fn to_authority(self) -> Authority {
        Authority::new(self.ip().to_host(), self.port())
    }
}

#[cfg(test)]
mod tests {
    use crate::{Authority, IPv4Address, IPv6Address, SocketAddress, SocketAddressV4, SocketAddressV6};

    #[test]
    fn v4_to_socket() {
        let socket: SocketAddressV4 = IPv4Address::LOCALHOST.to_socket(80);
        let result: SocketAddress = socket.to_socket();
        let expected: SocketAddress = SocketAddress::new(IPv4Address::LOCALHOST.to_ip(), 80);
        assert_eq!(result, expected);
    }

    #[test]
    fn v6_to_socket() {
        let socket: SocketAddressV6 = IPv6Address::LOCALHOST.to_socket(80);
        let result: SocketAddress = socket.to_socket();
        let expected: SocketAddress = SocketAddress::new(IPv6Address::LOCALHOST.to_ip(), 80);
        assert_eq!(result, expected);
    }

    #[test]
    fn socket_to_v4() {
        let test_cases: &[(SocketAddress, Option<SocketAddressV4>)] = &[
            (
                IPv4Address::LOCALHOST.to_ip().to_socket(80),
                Some(SocketAddressV4::new(IPv4Address::LOCALHOST, 80)),
            ),
            (IPv6Address::LOCALHOST.to_ip().to_socket(80), None),
        ];

        for (socket, expected) in test_cases {
            let result: Option<SocketAddressV4> = socket.to_v4();
            assert_eq!(result, *expected, "socket={:?}", socket);
        }
    }

    #[test]
    fn socket_to_v6() {
        let test_cases: &[(SocketAddress, Option<SocketAddressV6>)] = &[
            (IPv4Address::LOCALHOST.to_ip().to_socket(80), None),
            (
                IPv6Address::LOCALHOST.to_ip().to_socket(80),
                Some(SocketAddressV6::new(IPv6Address::LOCALHOST, 80)),
            ),
        ];

        for (socket, expected) in test_cases {
            let result: Option<SocketAddressV6> = socket.to_v6();
            assert_eq!(result, *expected, "socket={:?}", socket);
        }
    }

    #[test]
    fn socket_to_authority() {
        let socket: SocketAddress = IPv4Address::LOCALHOST.to_socket(80).to_socket();
        let result: Authority = socket.to_authority();
        let expected: Authority = Authority::new(IPv4Address::LOCALHOST.to_host(), 80);
        assert_eq!(result, expected);
    }
}