Moved some test files around to better reflect the directory layout. (#1428)

test/cryptography/MerkleProof.test.js

@@ -0,0 +1,58 @@
+const { MerkleTree } = require('../helpers/merkleTree.js');
+const { sha3, bufferToHex } = require('ethereumjs-util');
+
+const MerkleProofWrapper = artifacts.require('MerkleProofWrapper');
+
+require('chai')
+  .should();
+
+contract('MerkleProof', function () {
+  beforeEach(async function () {
+    this.merkleProof = await MerkleProofWrapper.new();
+  });
+
+  describe('verify', function () {
+    it('should return true for a valid Merkle proof', async function () {
+      const elements = ['a', 'b', 'c', 'd'];
+      const merkleTree = new MerkleTree(elements);
+
+      const root = merkleTree.getHexRoot();
+
+      const proof = merkleTree.getHexProof(elements[0]);
+
+      const leaf = bufferToHex(sha3(elements[0]));
+
+      (await this.merkleProof.verify(proof, root, leaf)).should.equal(true);
+    });
+
+    it('should return false for an invalid Merkle proof', async function () {
+      const correctElements = ['a', 'b', 'c'];
+      const correctMerkleTree = new MerkleTree(correctElements);
+
+      const correctRoot = correctMerkleTree.getHexRoot();
+
+      const correctLeaf = bufferToHex(sha3(correctElements[0]));
+
+      const badElements = ['d', 'e', 'f'];
+      const badMerkleTree = new MerkleTree(badElements);
+
+      const badProof = badMerkleTree.getHexProof(badElements[0]);
+
+      (await this.merkleProof.verify(badProof, correctRoot, correctLeaf)).should.equal(false);
+    });
+
+    it('should return false for a Merkle proof of invalid length', async function () {
+      const elements = ['a', 'b', 'c'];
+      const merkleTree = new MerkleTree(elements);
+
+      const root = merkleTree.getHexRoot();
+
+      const proof = merkleTree.getHexProof(elements[0]);
+      const badProof = proof.slice(0, proof.length - 5);
+
+      const leaf = bufferToHex(sha3(elements[0]));
+
+      (await this.merkleProof.verify(badProof, root, leaf)).should.equal(false);
+    });
+  });
+});