diff --git a/test/smttestvectors.js b/test/smttestvectors.js
new file mode 100644
index 0000000..a95d1b6
--- /dev/null
+++ b/test/smttestvectors.js
@@ -0,0 +1,231 @@
+const chai = require("chai");
+const snarkjs = require("snarkjs");
+
+const smt = require("../src/smt.js");
+const mimcjs = require("../src/mimc7.js");
+
+const assert = chai.assert;
+const expect = chai.expect;
+
+const bigInt = snarkjs.bigInt;
+
+function stringifyBigInts(o) {
+    if ((typeof(o) == "bigint") || (o instanceof bigInt))  {
+        return o.toString(10);
+    } else if (Array.isArray(o)) {
+        return o.map(stringifyBigInts);
+    } else if (typeof o == "object") {
+        const res = {};
+        for (let k in o) {
+            res[k] = stringifyBigInts(o[k]);
+        }
+        return res;
+    } else {
+        return o;
+    }
+}
+
+function newEntryFromInts(a, b, c, d) {
+    return {
+        hi: mimcjs.hash(c, d),
+        hv: mimcjs.hash(a, b),
+    };
+}
+
+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;
+}
+
+describe("SMT 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("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("Should insert 2 elements and empty them", async () => {
+    //    const tree = await smt.newMemEmptyTrie();
+    //    const key1 = bigInt(111);
+    //    const value1 = bigInt(222);
+    //    const key2 = bigInt(333);
+    //    const value2 = bigInt(444);
+
+    //    await tree.insert(key1,value1);
+    //    await tree.insert(key2,value2);
+    //    await tree.delete(key2);
+    //    await tree.delete(key1);
+
+    //    assert(tree.root.isZero());
+    //});
+
+    //it("Should insert 3 elements in dferent order and should be the same", async () => {
+    //    const keys = [bigInt(8), bigInt(9), bigInt(32)];
+    //    const values = [bigInt(88), bigInt(99), bigInt(3232)];
+    //    const tree1 = await smt.newMemEmptyTrie();
+    //    const tree2 = await smt.newMemEmptyTrie();
+    //    const tree3 = await smt.newMemEmptyTrie();
+    //    const tree4 = await smt.newMemEmptyTrie();
+    //    const tree5 = await smt.newMemEmptyTrie();
+    //    const tree6 = await smt.newMemEmptyTrie();
+
+    //    await tree1.insert(keys[0],values[0]);
+    //    await tree1.insert(keys[1],values[1]);
+    //    await tree1.insert(keys[2],values[2]);
+
+    //    await tree2.insert(keys[0],values[0]);
+    //    await tree2.insert(keys[2],values[2]);
+    //    await tree2.insert(keys[1],values[1]);
+
+    //    await tree3.insert(keys[1],values[1]);
+    //    await tree3.insert(keys[0],values[0]);
+    //    await tree3.insert(keys[2],values[2]);
+
+    //    await tree4.insert(keys[1],values[1]);
+    //    await tree4.insert(keys[2],values[2]);
+    //    await tree4.insert(keys[0],values[0]);
+
+    //    await tree5.insert(keys[2],values[2]);
+    //    await tree5.insert(keys[0],values[0]);
+    //    await tree5.insert(keys[1],values[1]);
+
+    //    await tree6.insert(keys[2],values[2]);
+    //    await tree6.insert(keys[1],values[1]);
+    //    await tree6.insert(keys[0],values[0]);
+
+    //    assert(tree1.root.equals(tree2.root));
+    //    assert(tree2.root.equals(tree3.root));
+    //    assert(tree3.root.equals(tree4.root));
+    //    assert(tree4.root.equals(tree5.root));
+    //    assert(tree5.root.equals(tree6.root));
+
+    //    assert.equal(Object.keys(tree1.db.nodes).length,  Object.keys(tree2.db.nodes).length);
+    //    assert.equal(Object.keys(tree2.db.nodes).length,  Object.keys(tree3.db.nodes).length);
+    //    assert.equal(Object.keys(tree3.db.nodes).length,  Object.keys(tree4.db.nodes).length);
+    //    assert.equal(Object.keys(tree4.db.nodes).length,  Object.keys(tree5.db.nodes).length);
+    //    assert.equal(Object.keys(tree5.db.nodes).length,  Object.keys(tree6.db.nodes).length);
+
+    //    await tree1.delete(keys[0]);
+    //    await tree1.delete(keys[1]);
+    //    await tree2.delete(keys[1]);
+    //    await tree2.delete(keys[0]);
+    //    assert(tree1.root.equals(tree2.root));
+
+    //    await tree3.delete(keys[0]);
+    //    await tree3.delete(keys[2]);
+    //    await tree4.delete(keys[2]);
+    //    await tree4.delete(keys[0]);
+    //    assert(tree3.root.equals(tree4.root));
+
+    //    await tree5.delete(keys[1]);
+    //    await tree5.delete(keys[2]);
+    //    await tree6.delete(keys[2]);
+    //    await tree6.delete(keys[1]);
+    //    assert(tree5.root.equals(tree6.root));
+
+    //    await tree1.delete(keys[2]);
+    //    await tree2.delete(keys[2]);
+    //    await tree3.delete(keys[1]);
+    //    await tree4.delete(keys[1]);
+    //    await tree5.delete(keys[0]);
+    //    await tree6.delete(keys[0]);
+
+    //    assert(tree1.root.isZero());
+    //    assert(tree2.root.isZero());
+    //    assert(tree3.root.isZero());
+    //    assert(tree4.root.isZero());
+    //    assert(tree5.root.isZero());
+    //    assert(tree6.root.isZero());
+
+    //    assert.equal(Object.keys(tree1.db.nodes).length, 0);
+    //    assert.equal(Object.keys(tree2.db.nodes).length, 0);
+    //    assert.equal(Object.keys(tree3.db.nodes).length, 0);
+    //    assert.equal(Object.keys(tree4.db.nodes).length, 0);
+    //    assert.equal(Object.keys(tree5.db.nodes).length, 0);
+    //    assert.equal(Object.keys(tree6.db.nodes).length, 0);
+    //});
+
+    //it("Insert and remove 100 numbers randomly", async () => {
+    //    function perm(a) {
+    //        const arr = a.slice();
+    //        const rArr = [];
+    //        for (let i=0; i<arr.length; i++) {
+    //            let rIdx = Math.floor(Math.random() * (arr.length - i));
+    //            rArr.push(arr[rIdx]);
+    //            arr[rIdx] = arr[arr.length - i - 1];
+    //        }
+    //        return rArr;
+    //    }
+    //    const tree = await smt.newMemEmptyTrie();
+    //    const arr = [];
+    //    const N = 100;
+    //    for (let i=0; i<N; i++) {
+    //        arr.push(bigInt(i));
+    //    }
+    //    const insArr = perm(arr);
+    //    for (let i=0; i<N; i++) {
+    //        await tree.insert(insArr[i], i);
+    //    }
+    //    const delArr = perm(insArr);
+    //    for (let i=0; i<N; i++) {
+    //        await tree.delete(delArr[i]);
+    //    }
+
+    //    assert(tree.root.isZero());
+    //    assert.equal(Object.keys(tree.db.nodes).length, 0);
+    //});
+
+    //it("Should test update", async () => {
+    //    const tree1 = await smt.newMemEmptyTrie();
+    //    const tree2 = await smt.newMemEmptyTrie();
+
+    //    await tree1.insert(8,88);
+    //    await tree1.insert(9,99,);
+    //    await tree1.insert(32,3232);
+
+    //    await tree2.insert(8,888);
+    //    await tree2.insert(9,999);
+    //    await tree2.insert(32,323232);
+
+    //    await tree1.update(8, 888);
+    //    await tree1.update(9, 999);
+    //    await tree1.update(32, 323232);
+
+    //    assert(tree1.root.equals(tree2.root));
+    //});
+
+});
+