mpp-br 0.8.1

Rust SDK for the Machine Payments Protocol (MPP)
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152

use core::fmt;

/// Known Tempo blockchain networks.
#[derive(Debug, Clone, Copy, PartialEq, Eq, Hash)]
pub enum TempoNetwork {
    /// Tempo mainnet (chain ID 4217)
    Mainnet,
    /// Tempo Moderato testnet (chain ID 42431)
    Moderato,
}

impl TempoNetwork {
    /// Returns the chain ID for this network.
    pub const fn chain_id(self) -> u64 {
        match self {
            Self::Mainnet => super::CHAIN_ID,
            Self::Moderato => super::MODERATO_CHAIN_ID,
        }
    }

    /// Returns the default RPC URL for this network.
    pub const fn default_rpc_url(self) -> &'static str {
        match self {
            Self::Mainnet => super::DEFAULT_RPC_URL,
            Self::Moderato => "https://rpc.moderato.tempo.xyz",
        }
    }

    /// Returns the default currency address for this network.
    pub const fn default_currency(self) -> &'static str {
        match self {
            Self::Mainnet => super::DEFAULT_CURRENCY_MAINNET,
            Self::Moderato => super::DEFAULT_CURRENCY_TESTNET,
        }
    }

    /// Returns the network for a given chain ID, if known.
    pub fn from_chain_id(chain_id: u64) -> Option<Self> {
        match chain_id {
            super::CHAIN_ID => Some(Self::Mainnet),
            super::MODERATO_CHAIN_ID => Some(Self::Moderato),
            _ => None,
        }
    }

    /// Returns a string identifier for this network.
    pub const fn as_str(self) -> &'static str {
        match self {
            Self::Mainnet => "tempo",
            Self::Moderato => "tempo-moderato",
        }
    }
}

impl fmt::Display for TempoNetwork {
    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
        f.write_str(self.as_str())
    }
}

#[cfg(test)]
mod tests {
    use super::*;

    #[test]
    fn from_chain_id_roundtrip() {
        for network in [TempoNetwork::Mainnet, TempoNetwork::Moderato] {
            let id = network.chain_id();
            let recovered = TempoNetwork::from_chain_id(id).unwrap();
            assert_eq!(recovered, network);
        }
    }

    #[test]
    fn unknown_chain_id_returns_none() {
        assert_eq!(TempoNetwork::from_chain_id(0), None);
        assert_eq!(TempoNetwork::from_chain_id(1), None);
        assert_eq!(TempoNetwork::from_chain_id(999999), None);
    }

    #[test]
    fn as_str_matches_expected() {
        assert_eq!(TempoNetwork::Mainnet.as_str(), "tempo");
        assert_eq!(TempoNetwork::Moderato.as_str(), "tempo-moderato");
    }

    #[test]
    fn display_output() {
        assert_eq!(format!("{}", TempoNetwork::Mainnet), "tempo");
        assert_eq!(format!("{}", TempoNetwork::Moderato), "tempo-moderato");
    }

    #[test]
    fn chain_id_values() {
        assert_eq!(TempoNetwork::Mainnet.chain_id(), 4217);
        assert_eq!(TempoNetwork::Moderato.chain_id(), 42431);
    }

    #[test]
    fn constants_consistency() {
        assert_eq!(TempoNetwork::Mainnet.chain_id(), super::super::CHAIN_ID);
        assert_eq!(
            TempoNetwork::Moderato.chain_id(),
            super::super::MODERATO_CHAIN_ID
        );
        assert_eq!(
            TempoNetwork::Mainnet.default_rpc_url(),
            super::super::DEFAULT_RPC_URL
        );
        assert_eq!(
            TempoNetwork::Mainnet.default_currency(),
            super::super::DEFAULT_CURRENCY_MAINNET
        );
        assert_eq!(
            TempoNetwork::Moderato.default_currency(),
            super::super::DEFAULT_CURRENCY_TESTNET
        );
    }

    #[test]
    fn rpc_url_values() {
        assert_eq!(
            TempoNetwork::Mainnet.default_rpc_url(),
            "https://rpc.tempo.xyz"
        );
        assert_eq!(
            TempoNetwork::Moderato.default_rpc_url(),
            "https://rpc.moderato.tempo.xyz"
        );
    }

    #[test]
    fn default_currency_per_network() {
        assert_eq!(
            TempoNetwork::Mainnet.default_currency(),
            "0x20C000000000000000000000b9537d11c60E8b50"
        );
        assert_eq!(
            TempoNetwork::Moderato.default_currency(),
            "0x20c0000000000000000000000000000000000000"
        );
        assert_ne!(
            TempoNetwork::Mainnet.default_currency(),
            TempoNetwork::Moderato.default_currency()
        );
    }

    #[test]
    fn from_chain_id_u64_max_returns_none() {
        assert_eq!(TempoNetwork::from_chain_id(u64::MAX), None);
    }
}