tap-msg 0.7.0

Core message processing library for the Transaction Authorization Protocol
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

use std::collections::HashMap;
use std::str::FromStr;
use tap_caip::AssetId;
use tap_msg::error::Result;
use tap_msg::message::{Agent, Party, TapMessageBody, Transfer};

#[tokio::test]
async fn test_pack_tap_body() -> Result<()> {
    // Create a valid transfer message body
    let asset =
        AssetId::from_str("eip155:1/erc20:0xdac17f958d2ee523a2206206994597c13d831ec7").unwrap();

    let originator = Party::new("did:key:z6MkhaXgBZDvotDkL5257faiztiGiC2QtKLGpbnnEGta2doK");

    let beneficiary = Party::new("did:key:z6MkmRsjkKHNrBiVz5mhiqhJVYf9E9mxg3MVGqgqMkRwCJd6");

    let body = Transfer {
        transaction_id: Some(uuid::Uuid::new_v4().to_string()),
        asset: asset.clone(),
        originator: Some(originator.clone()),
        beneficiary: Some(beneficiary.clone()),
        amount: "100.00".to_string(),
        agents: vec![
            Agent::new(
                "did:key:z6MkhaXgBZDvotDkL5257faiztiGiC2QtKLGpbnnEGta2doK",
                "originator_agent",
                "did:key:z6MkhaXgBZDvotDkL5257faiztiGiC2QtKLGpbnnEGta2doK",
            ),
            Agent::new(
                "did:key:z6MkmRsjkKHNrBiVz5mhiqhJVYf9E9mxg3MVGqgqMkRwCJd6",
                "beneficiary_agent",
                "did:key:z6MkmRsjkKHNrBiVz5mhiqhJVYf9E9mxg3MVGqgqMkRwCJd6",
            ),
        ],
        settlement_id: None,
        expiry: None,
        transaction_value: None,
        connection_id: None,
        metadata: HashMap::new(),
        memo: None,
    };

    // Test packing the message body using the new to_didcomm_with_route method
    let from_did = "did:key:z6MkhaXgBZDvotDkL5257faiztiGiC2QtKLGpbnnEGta2doK";
    let to_did = "did:key:z6MkwYyuTCaaDKnMGHpMkteuFpj1KrsFgGXwW3nXdT7k3RQP";
    let to_dids = [to_did];

    let packed_msg = body.to_didcomm_with_route(from_did, to_dids.iter().copied())?;

    // Verify the packed message
    assert_eq!(packed_msg.from, from_did.to_string());
    assert_eq!(packed_msg.to, vec![to_did.to_string()]);
    assert_eq!(packed_msg.type_, Transfer::message_type());

    // Verify the body contains our data
    let body_value = packed_msg.body.as_object().unwrap();
    assert!(body_value.contains_key("asset"));
    assert!(body_value.contains_key("amount"));
    assert!(body_value.contains_key("originator"));

    // Now test extracting the body back using from_didcomm
    let extracted_body = Transfer::from_didcomm(&packed_msg)?;

    // Verify the extracted body matches the original
    assert_eq!(extracted_body.asset, asset);
    assert_eq!(extracted_body.amount, body.amount);
    assert_eq!(
        extracted_body.originator.unwrap().id,
        body.originator.unwrap().id
    );
    assert_eq!(
        extracted_body.beneficiary.as_ref().unwrap().id,
        body.beneficiary.as_ref().unwrap().id
    );

    Ok(())
}

#[tokio::test]
async fn test_extract_tap_body() -> Result<()> {
    // Create a valid transfer message body
    let asset =
        AssetId::from_str("eip155:1/erc20:0xa0b86991c6218b36c1d19d4a2e9eb0ce3606eb48").unwrap();

    let originator = Party::new("did:key:z6MkhaXgBZDvotDkL5257faiztiGiC2QtKLGpbnnEGta2doK");

    let beneficiary = Party::new("did:key:z6MkmRsjkKHNrBiVz5mhiqhJVYf9E9mxg3MVGqgqMkRwCJd6");

    let body = Transfer {
        transaction_id: Some(uuid::Uuid::new_v4().to_string()),
        asset: asset.clone(),
        originator: Some(originator.clone()),
        beneficiary: Some(beneficiary.clone()),
        amount: "1.00".to_string(),
        agents: vec![
            Agent::new(
                "did:key:z6MkhaXgBZDvotDkL5257faiztiGiC2QtKLGpbnnEGta2doK",
                "originator_agent",
                "did:key:z6MkhaXgBZDvotDkL5257faiztiGiC2QtKLGpbnnEGta2doK",
            ),
            Agent::new(
                "did:key:z6MkmRsjkKHNrBiVz5mhiqhJVYf9E9mxg3MVGqgqMkRwCJd6",
                "beneficiary_agent",
                "did:key:z6MkmRsjkKHNrBiVz5mhiqhJVYf9E9mxg3MVGqgqMkRwCJd6",
            ),
        ],
        settlement_id: None,
        expiry: None,
        transaction_value: None,
        connection_id: None,
        metadata: HashMap::new(),
        memo: None,
    };

    // Pack the message body
    let from_did = "did:key:z6MkhaXgBZDvotDkL5257faiztiGiC2QtKLGpbnnEGta2doK";
    let to_did = "did:key:z6MkmRsjkKHNrBiVz5mhiqhJVYf9E9mxg3MVGqgqMkRwCJd6";
    let to_dids = [to_did];

    let message = body.to_didcomm_with_route(from_did, to_dids.iter().copied())?;

    // Extract the body using from_didcomm
    let extracted: Transfer = Transfer::from_didcomm(&message)?;

    // Verify extraction was successful
    assert_eq!(extracted.asset, asset);
    assert_eq!(extracted.amount, "1.00");

    Ok(())
}

// TODO: Add more comprehensive tests for:
// - Unpacking messages
// - Handling different message types
// - Error cases