circomlib/test/smtprocessor.js
test/smtprocessor.jsRaw
1const chai = require("chai");
2const path = require("path");
3const bigInt = require("big-integer");
4const tester = require("circom").tester;
5
6const smt = require("../src/smt.js");
7
8const assert = chai.assert;
9
10function print(circuit, w, s) {
11 console.log(s + ": " + w[circuit.getSignalIdx(s)]);
12}
13
14async function testInsert(tree, key, value, circuit ) {
15
16 const res = await tree.insert(key,value);
17 let siblings = res.siblings;
18 while (siblings.length<10) siblings.push(bigInt(0));
19
20 const w = await circuit.calculateWitness({
21 fnc: [1,0],
22 oldRoot: res.oldRoot,
23 siblings: siblings,
24 oldKey: res.isOld0 ? 0 : res.oldKey,
25 oldValue: res.isOld0 ? 0 : res.oldValue,
26 isOld0: res.isOld0 ? 1 : 0,
27 newKey: key,
28 newValue: value
29 }, true);
30
31 await circuit.checkConstraints(w);
32
33 await circuit.assertOut(w, {newRoot: res.newRoot});
34
35}
36
37async function testDelete(tree, key, circuit) {
38 const res = await tree.delete(key);
39 let siblings = res.siblings;
40 while (siblings.length<10) siblings.push(bigInt(0));
41
42 const w = await circuit.calculateWitness({
43 fnc: [1,1],
44 oldRoot: res.oldRoot,
45 siblings: siblings,
46 oldKey: res.isOld0 ? 0 : res.oldKey,
47 oldValue: res.isOld0 ? 0 : res.oldValue,
48 isOld0: res.isOld0 ? 1 : 0,
49 newKey: res.delKey,
50 newValue: res.delValue
51 }, true);
52
53 await circuit.checkConstraints(w);
54
55 await circuit.assertOut(w, {newRoot: res.newRoot});
56}
57
58async function testUpdate(tree, key, newValue, circuit) {
59 const res = await tree.update(key, newValue);
60 let siblings = res.siblings;
61 while (siblings.length<10) siblings.push(bigInt(0));
62
63 const w = await circuit.calculateWitness({
64 fnc: [0,1],
65 oldRoot: res.oldRoot,
66 siblings: siblings,
67 oldKey: res.oldKey,
68 oldValue: res.oldValue,
69 isOld0: 0,
70 newKey: res.newKey,
71 newValue: res.newValue
72 });
73
74 await circuit.checkConstraints(w);
75
76 await circuit.assertOut(w, {newRoot: res.newRoot});
77}
78
79
80describe("SMT Processor test", function () {
81 let circuit;
82 let tree;
83
84 this.timeout(10000000);
85
86 before( async () => {
87 circuit = await tester(path.join(__dirname, "circuits", "smtprocessor10_test.circom"));
88 await circuit.loadSymbols();
89
90 tree = await smt.newMemEmptyTrie();
91 });
92
93 it("Should verify an insert to an empty tree", async () => {
94 const key = bigInt(111);
95 const value = bigInt(222);
96
97 await testInsert(tree, key, value, circuit);
98 });
99
100 it("It should add another element", async () => {
101 const key = bigInt(333);
102 const value = bigInt(444);
103
104 await testInsert(tree, key, value, circuit);
105 });
106
107 it("Should remove an element", async () => {
108 await testDelete(tree, 111, circuit);
109 await testDelete(tree, 333, circuit);
110 });
111
112 it("Should test convination of adding and removing 3 elements", async () => {
113 const keys = [bigInt(8), bigInt(9), bigInt(32)];
114 const values = [bigInt(88), bigInt(99), bigInt(3232)];
115 const tree1 = await smt.newMemEmptyTrie();
116 const tree2 = await smt.newMemEmptyTrie();
117 const tree3 = await smt.newMemEmptyTrie();
118 const tree4 = await smt.newMemEmptyTrie();
119 const tree5 = await smt.newMemEmptyTrie();
120 const tree6 = await smt.newMemEmptyTrie();
121
122 await testInsert(tree1,keys[0],values[0], circuit);
123 await testInsert(tree1,keys[1],values[1], circuit);
124 await testInsert(tree1,keys[2],values[2], circuit);
125
126 await testInsert(tree2,keys[0],values[0], circuit);
127 await testInsert(tree2,keys[2],values[2], circuit);
128 await testInsert(tree2,keys[1],values[1], circuit);
129
130 await testInsert(tree3,keys[1],values[1], circuit);
131 await testInsert(tree3,keys[0],values[0], circuit);
132 await testInsert(tree3,keys[2],values[2], circuit);
133
134 await testInsert(tree4,keys[1],values[1], circuit);
135 await testInsert(tree4,keys[2],values[2], circuit);
136 await testInsert(tree4,keys[0],values[0], circuit);
137
138 await testInsert(tree5,keys[2],values[2], circuit);
139 await testInsert(tree5,keys[0],values[0], circuit);
140 await testInsert(tree5,keys[1],values[1], circuit);
141
142 await testInsert(tree6,keys[2],values[2], circuit);
143 await testInsert(tree6,keys[1],values[1], circuit);
144 await testInsert(tree6,keys[0],values[0], circuit);
145
146
147 await testDelete(tree1, keys[0], circuit);
148 await testDelete(tree1, keys[1], circuit);
149 await testDelete(tree2, keys[1], circuit);
150 await testDelete(tree2, keys[0], circuit);
151
152 await testDelete(tree3, keys[0], circuit);
153 await testDelete(tree3, keys[2], circuit);
154 await testDelete(tree4, keys[2], circuit);
155 await testDelete(tree4, keys[0], circuit);
156
157
158 await testDelete(tree5, keys[1], circuit);
159 await testDelete(tree5, keys[2], circuit);
160 await testDelete(tree6, keys[2], circuit);
161 await testDelete(tree6, keys[1], circuit);
162
163 await testDelete(tree1, keys[2], circuit);
164 await testDelete(tree2, keys[2], circuit);
165 await testDelete(tree3, keys[1], circuit);
166 await testDelete(tree4, keys[1], circuit);
167 await testDelete(tree5, keys[0], circuit);
168 await testDelete(tree6, keys[0], circuit);
169 });
170
171 it("Should match a NOp with random vals", async () => {
172 let siblings = [];
173 while (siblings.length<10) siblings.push(bigInt(88));
174 const w = await circuit.calculateWitness({
175 fnc: [0,0],
176 oldRoot: 11,
177 siblings: siblings,
178 oldKey: 33,
179 oldValue: 44,
180 isOld0: 55,
181 newKey: 66,
182 newValue: 77
183 });
184
185 const root1 = w[circuit.symbols["main.oldRoot"].varIdx];
186 const root2 = w[circuit.symbols["main.newRoot"].varIdx];
187
188 await circuit.checkConstraints(w);
189
190 assert(root1.equals(root2));
191 });
192 it("Should update an element", async () => {
193 const tree1 = await smt.newMemEmptyTrie();
194 const tree2 = await smt.newMemEmptyTrie();
195
196 await testInsert(tree1,8,88, circuit);
197 await testInsert(tree1,9,99, circuit);
198 await testInsert(tree1,32,3232, circuit);
199
200 await testInsert(tree2,8,888, circuit);
201 await testInsert(tree2,9,999, circuit);
202 await testInsert(tree2,32,323232, circuit);
203
204 await testUpdate(tree1, 8, 888, circuit);
205 await testUpdate(tree1, 9, 999, circuit);
206 await testUpdate(tree1, 32, 323232, circuit);
207 });
208});