1// Copyright (c) 2015-2016 The btcsuite developers
2// Use of this source code is governed by an ISC
3// license that can be found in the LICENSE file.
4
5package blockchain
6
7import (
8	"reflect"
9	"testing"
10)
11
12// TestDeserializeUtxoEntryV0 ensures deserializing unspent trasaction output
13// entries from the legacy version 0 format works as expected.
14func TestDeserializeUtxoEntryV0(t *testing.T) {
15	tests := []struct {
16		name       string
17		entries    map[uint32]*UtxoEntry
18		serialized []byte
19	}{
20		// From tx in main blockchain:
21		// 0e3e2357e806b6cdb1f70b54c3a3a17b6714ee1f0e68bebb44a74b1efd512098
22		{
23			name: "Only output 0, coinbase",
24			entries: map[uint32]*UtxoEntry{
25				0: {
26					amount:      5000000000,
27					pkScript:    hexToBytes("410496b538e853519c726a2c91e61ec11600ae1390813a627c66fb8be7947be63c52da7589379515d4e0a604f8141781e62294721166bf621e73a82cbf2342c858eeac"),
28					blockHeight: 1,
29					packedFlags: tfCoinBase,
30				},
31			},
32			serialized: hexToBytes("010103320496b538e853519c726a2c91e61ec11600ae1390813a627c66fb8be7947be63c52"),
33		},
34		// From tx in main blockchain:
35		// 8131ffb0a2c945ecaf9b9063e59558784f9c3a74741ce6ae2a18d0571dac15bb
36		{
37			name: "Only output 1, not coinbase",
38			entries: map[uint32]*UtxoEntry{
39				1: {
40					amount:      1000000,
41					pkScript:    hexToBytes("76a914ee8bd501094a7d5ca318da2506de35e1cb025ddc88ac"),
42					blockHeight: 100001,
43					packedFlags: 0,
44				},
45			},
46			serialized: hexToBytes("01858c21040700ee8bd501094a7d5ca318da2506de35e1cb025ddc"),
47		},
48		// Adapted from tx in main blockchain:
49		// df3f3f442d9699857f7f49de4ff0b5d0f3448bec31cdc7b5bf6d25f2abd637d5
50		{
51			name: "Only output 2, coinbase",
52			entries: map[uint32]*UtxoEntry{
53				2: {
54					amount:      100937281,
55					pkScript:    hexToBytes("76a914da33f77cee27c2a975ed5124d7e4f7f97513510188ac"),
56					blockHeight: 99004,
57					packedFlags: tfCoinBase,
58				},
59			},
60			serialized: hexToBytes("0185843c010182b095bf4100da33f77cee27c2a975ed5124d7e4f7f975135101"),
61		},
62		// Adapted from tx in main blockchain:
63		// 4a16969aa4764dd7507fc1de7f0baa4850a246de90c45e59a3207f9a26b5036f
64		{
65			name: "outputs 0 and 2 not coinbase",
66			entries: map[uint32]*UtxoEntry{
67				0: {
68					amount:      20000000,
69					pkScript:    hexToBytes("76a914e2ccd6ec7c6e2e581349c77e067385fa8236bf8a88ac"),
70					blockHeight: 113931,
71					packedFlags: 0,
72				},
73				2: {
74					amount:      15000000,
75					pkScript:    hexToBytes("76a914b8025be1b3efc63b0ad48e7f9f10e87544528d5888ac"),
76					blockHeight: 113931,
77					packedFlags: 0,
78				},
79			},
80			serialized: hexToBytes("0185f90b0a011200e2ccd6ec7c6e2e581349c77e067385fa8236bf8a800900b8025be1b3efc63b0ad48e7f9f10e87544528d58"),
81		},
82		// Adapted from tx in main blockchain:
83		// 1b02d1c8cfef60a189017b9a420c682cf4a0028175f2f563209e4ff61c8c3620
84		{
85			name: "Only output 22, not coinbase",
86			entries: map[uint32]*UtxoEntry{
87				22: {
88					amount:      366875659,
89					pkScript:    hexToBytes("a9141dd46a006572d820e448e12d2bbb38640bc718e687"),
90					blockHeight: 338156,
91					packedFlags: 0,
92				},
93			},
94			serialized: hexToBytes("0193d06c100000108ba5b9e763011dd46a006572d820e448e12d2bbb38640bc718e6"),
95		},
96	}
97
98	for i, test := range tests {
99		// Deserialize to map of utxos keyed by the output index.
100		entries, err := deserializeUtxoEntryV0(test.serialized)
101		if err != nil {
102			t.Errorf("deserializeUtxoEntryV0 #%d (%s) unexpected "+
103				"error: %v", i, test.name, err)
104			continue
105		}
106
107		// Ensure the deserialized entry has the same properties as the
108		// ones in the test entry.
109		if !reflect.DeepEqual(entries, test.entries) {
110			t.Errorf("deserializeUtxoEntryV0 #%d (%s) unexpected "+
111				"entries: got %v, want %v", i, test.name,
112				entries, test.entries)
113			continue
114		}
115	}
116}
117