diff --git a/test/index.ts b/test/index.ts
index a95ea34..2507fea 100644
--- a/test/index.ts
+++ b/test/index.ts
@@ -1,4 +1,3 @@
-import { expect } from "chai";
 import { ethers } from "hardhat";
 
 describe("Rln", function () {
@@ -9,12 +8,36 @@ describe("Rln", function () {
     await poseidonHasher.deployed();
   
     console.log("PoseidonHasher deployed to:", poseidonHasher.address);
-  
+
     const Rln = await ethers.getContractFactory("RLN");
-    const rln = await Rln.deploy(1000000000000000,20,poseidonHasher.address);
+    const rln = await Rln.deploy(1000000000000000, 20, poseidonHasher.address);
   
     await rln.deployed();
-  
+
     console.log("Rln deployed to:", rln.address);
+    
+    const price = await rln.MEMBERSHIP_DEPOSIT();
+
+    // A valid pair of (id_secret, id_commitment)
+    const id_secret = "0x2a09a9fd93c590c26b91effbb2499f07e8f7aa12e2b4940a3aed2411cb65e11c"
+    const id_commitment = "0x0c3ac305f6a4fe9bfeb3eba978bc876e2a99208b8b56c80160cfb54ba8f02368"
+
+    // We attempt to register and withdraw the commitment (tree index is 0 since the tree is empty)
+    await rln.register(id_commitment, {value: price});
+    await rln.withdraw(id_secret, "0", "0x000000000000000000000000000000000000dead");
+
+    rln.on('MemberRegistered', function (id_commitment, tree_index) {
+        console.log(`A new member registered:`);
+        console.log(`- id_commitment: ${id_commitment}`);
+        console.log(`- tree_index: ${tree_index}`);
+    });
+
+    rln.on('MemberWithdrawn', function (id_commitment, tree_index) {
+        console.log(`A member withdrawn its membership fee:`);
+        console.log(`- id_commitment: ${id_commitment}`);
+        console.log(`- tree_index: ${tree_index}`);
+    });
+    
+
   });
 });