update smttestvectors.js

.gitignore

@@ -60,6 +60,9 @@ typings/
 # next.js build output
 .next
 
+# Visual code configuration
+.vscode
+
 tmp
 
 .DS_Store

test/smttestvectors.js

@@ -9,6 +9,29 @@ const expect = chai.expect;
 
 const bigInt = snarkjs.bigInt;
 
+const bytesToHex = function (buff) {
+    return `0x${buff.toString("hex")}`;
+};
+
+const hexToBytes = function (hex) {
+    if (hex.substr(0, 2) === "0x") {
+        return Buffer.from(hex.substr(2), "hex");
+    }
+
+    return Buffer.from(hex, "hex");
+};
+
+function bigIntToBuffer(number) {
+    const buff = Buffer.alloc(32);
+    let pos = buff.length - 1;
+    while (!number.isZero()) {
+        buff[pos] = number.and(255);
+        number = number.shiftRight(8);
+        pos -= 1;
+    }
+    return buff;
+}
+
 function stringifyBigInts(o) {
     if ((typeof(o) == "bigint") || (o instanceof bigInt))  {
         return o.toString(10);
@@ -25,10 +48,10 @@ function stringifyBigInts(o) {
     }
 }
 
-function newEntryFromInts(a, b, c, d) {
+function newEntryFromBigInts(a, b, c, d) {
     return {
-        hi: mimcjs.hash(c, d),
-        hv: mimcjs.hash(a, b),
+        hi: mimcjs.multiHash([c, d]),
+        hv: mimcjs.multiHash([a, b]),
     };
 }
 
@@ -40,41 +63,40 @@ function smtHash(arr) {
     return r;
 }
 
-describe("SMT Javascript test", function () {
+describe("[sparse-merkle-tree] Javascript test", function () {
+  
     this.timeout(100000);
     before( async () => {
     });
 
-    it("test MIMC7", async() => {
-        //const h = mimcjs.multiHash(1,2,3);
-        //const h = smtHash([1,2,3]);
-        //console.log(h.toString(10));
-
-const mimcjs = require("../src/mimc7.js");
-const snarkjs = require("snarkjs");
-const bigInt = snarkjs.bigInt;
-const smt = require("../src/smt.js");
-
-h = mimcjs.hash(1,2,91);
-console.log(h);
-
-function smtHash(arr) {
-    let r = bigInt(0);
-    for (let i=0; i<arr.length; i++) {
-        r = mimcjs.hash(r, bigInt(arr[i]), 91 );
-    }
-    return r;
-}
-
-console.log(smtHash([1, 2, 3]));
-        // Test from old ver
+    it("Mimc7 hash", async () => {
+        const entries = [bigInt(12), bigInt(45), bigInt(78), bigInt(41)];
+        const test = entries.slice(2);
+        const hi = mimcjs.multiHash(entries.slice(2));
+        const hiHex = bytesToHex(bigIntToBuffer(hi));
+		    //"0x0a546e62170e636895398e3831a7834affd35adad67016ff2d5215828e643aaf"
     });
 
-    //it("Should calculate hindex", async() => {
-    //    const entry = newEntryFromInts(12, 45, 78, 41);
-    //    //console.log(entry.hi.toString(16));
-    //    expect(entry.hi.toString(16)).to.be.
-    //        equal("114438e8321f62c4a1708f443a5a66f9c8fcb0958e7b7008332b71442610b7a0");
+
+    // it("Add one claim", async () => {
+    //     const entries = newEntryFromBigInts(bigInt(12), bigInt(45), bigInt(78), bigInt(41));
+    //     const tree = await smt.newMemEmptyTrie();
+    //     const key1 = entries.hi;
+    //     const value1 = entries.hv;
+
+    //     await tree.insert(key1,value1);
+    //     const root = tree.root;
+    //     const rootBuff = bigIntToBuffer(root);
+    //     const rootHex = bytesToHex(rootBuff);
+    //     //0x2e4bd3b61579f9ed4d814dfa4228c743b853fb6d0b5d6a80735bd5aab579231f
+    //     assert(tree.root.isZero());
+    //});
+
+});
+
+// describe("SMT Javascript test", function () {
+//   this.timeout(100000);
+//   before( async () => {
 //   });
 
 //   it("Should insert 2 elements and empty them", async () => {
@@ -227,5 +249,5 @@ console.log(smtHash([1, 2, 3]));
 //       assert(tree1.root.equals(tree2.root));
 //   });
 
-});
+// });