@samitouri / QOSAMI-cakewallet
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1 import "package:cake_wallet/utils/payment_request.dart";
2 import "package:cw_core/erc20_token.dart";
3 import "package:flutter_test/flutter_test.dart";
4
5 void main() {
6 group("PaymentRequest", () {
7 group("Ethereum URIs", () {
8 test("extract address and raw token amount from EIP681 Uri with contract", () {
9 final uri = Uri.parse(
10 "ethereum:0x2791Bca1f2de4661ED88A30C99A7a9449Aa84174@1/transfer?address=0xCfc1650da7C961FD82998e7e30ca5f699D0aBf41&uint256=2000000000000000000",
11 );
12 final paymentRequest = PaymentRequest.fromUri(uri);
13
14 expect(paymentRequest.address, "0xCfc1650da7C961FD82998e7e30ca5f699D0aBf41");
15 expect(paymentRequest.amount, "");
16 expect(paymentRequest.rawTokenAmount, "2000000000000000000");
17 });
18
19 test("extract address and amount from EIP681 Uri", () {
20 final uri = Uri.parse(
21 "ethereum:0xCfc1650da7C961FD82998e7e30ca5f699D0aBf41@1?value=2000000000000000000",
22 );
23 final paymentRequest = PaymentRequest.fromUri(uri);
24
25 expect(paymentRequest.address, "0xCfc1650da7C961FD82998e7e30ca5f699D0aBf41");
26 expect(paymentRequest.amount, "2");
27 });
28
29 test("extract address and amount from Cake Style Uri", () {
30 final uri = Uri.parse("ethereum:0xCfc1650da7C961FD82998e7e30ca5f699D0aBf41@1?amount=2.00");
31 final paymentRequest = PaymentRequest.fromUri(uri);
32
33 expect(paymentRequest.address, "0xCfc1650da7C961FD82998e7e30ca5f699D0aBf41");
34 expect(paymentRequest.amount, "2.00");
35 });
36
37 test("extract address from EIP681 Uri with contract", () {
38 final uri = Uri.parse(
39 "ethereum:0x2791Bca1f2de4661ED88A30C99A7a9449Aa84174@1/transfer?address=0xCfc1650da7C961FD82998e7e30ca5f699D0aBf41",
40 );
41 final paymentRequest = PaymentRequest.fromUri(uri);
42
43 expect(paymentRequest.address, "0xCfc1650da7C961FD82998e7e30ca5f699D0aBf41");
44 expect(paymentRequest.amount, "");
45 });
46
47 test("extract address and raw token amount from EIP681 Uri with contract and no chainId", () {
48 final uri = Uri.parse(
49 "ethereum:0x1234567890abcdef1234567890abcdef12345678/transfer?address=0xabcdef1234567890abcdef1234567890abcdef12&uint256=1000000000000000000",
50 );
51 final paymentRequest = PaymentRequest.fromUri(uri);
52
53 expect(paymentRequest.address, "0xabcdef1234567890abcdef1234567890abcdef12");
54 expect(paymentRequest.amount, "");
55 expect(paymentRequest.rawTokenAmount, "1000000000000000000");
56 });
57
58 test("extract address from minimal EIP681 Uri", () {
59 final uri = Uri.parse("ethereum:0xCfc1650da7C961FD82998e7e30ca5f699D0aBf41");
60 final paymentRequest = PaymentRequest.fromUri(uri);
61
62 expect(paymentRequest.address, "0xCfc1650da7C961FD82998e7e30ca5f699D0aBf41");
63 expect(paymentRequest.amount, "");
64 });
65 });
66
67 group("resolveTokenAmount", () {
68 final usdt = Erc20Token(
69 name: "Tether",
70 symbol: "USDT",
71 contractAddress: "0xdAC17F958D2ee523a2206206994597C13D831ec7",
72 decimal: 6,
73 );
74 final dai = Erc20Token(
75 name: "Dai",
76 symbol: "DAI",
77 contractAddress: "0x6B175474E89094C44Da98b954EedeAC495271d0F",
78 decimal: 18,
79 );
80
81 test("converts the raw uint256 using the token decimals", () {
82 final uri = Uri.parse(
83 "ethereum:0xdAC17F958D2ee523a2206206994597C13D831ec7@1/transfer?address=0xCfc1650da7C961FD82998e7e30ca5f699D0aBf41&uint256=1000000",
84 );
85 final paymentRequest = PaymentRequest.fromUri(uri);
86
87 expect(paymentRequest.resolveTokenAmount(usdt), "1");
88 });
89
90 test("converts an 18 decimal raw amount unchanged", () {
91 final paymentRequest =
92 PaymentRequest("addr", "", "", "ethereum", null, rawTokenAmount: "1500000000000000000");
93
94 expect(paymentRequest.resolveTokenAmount(dai), "1.5");
95 });
96
97 test("falls back to the legacy 18 decimal reading for implausibly large amounts", () {
98 final paymentRequest = PaymentRequest(
99 "addr",
100 "",
101 "",
102 "ethereum",
103 null,
104 rawTokenAmount: "50000000000000000000",
105 );
106
107 expect(paymentRequest.resolveTokenAmount(usdt), "50");
108 });
109
110 test("prefers the decimal amount over the raw token amount", () {
111 final paymentRequest =
112 PaymentRequest("addr", "2.5", "", "ethereum", null, rawTokenAmount: "1000000");
113
114 expect(paymentRequest.resolveTokenAmount(usdt), "2.5");
115 });
116
117 test("returns null when there is no amount at all", () {
118 final paymentRequest = PaymentRequest("addr", "", "", "ethereum", null);
119
120 expect(paymentRequest.resolveTokenAmount(usdt), null);
121 });
122 });
123 });
124 }