diff --git a/Course_Identity_And_Smart_Contracts/starNotaryv2/test/TestStarNotary.js b/Course_Identity_And_Smart_Contracts/starNotaryv2/test/TestStarNotary.js
index 7b02f4fc..b14b19f5 100644
--- a/Course_Identity_And_Smart_Contracts/starNotaryv2/test/TestStarNotary.js
+++ b/Course_Identity_And_Smart_Contracts/starNotaryv2/test/TestStarNotary.js
@@ -11,7 +11,7 @@ contract('StarNotary', (accs) => {
 it('can Create a Star', async() => {
     let tokenId = 1;
     let instance = await StarNotary.deployed();
-    await instance.createStar('Awesome Star!', tokenId, {from: accounts[0]})
+    await instance.createStar('Awesome Star!', tokenId, {from: owner})
     assert.equal(await instance.tokenIdToStarInfo.call(tokenId), 'Awesome Star!')
 });
 
@@ -51,7 +51,6 @@ it('lets user2 buy a star, if it is put up for sale', async() => {
     let balance = web3.utils.toWei(".05", "ether");
     await instance.createStar('awesome star', starId, {from: user1});
     await instance.putStarUpForSale(starId, starPrice, {from: user1});
-    let balanceOfUser1BeforeTransaction = await web3.eth.getBalance(user2);
     await instance.buyStar(starId, {from: user2, value: balance});
     assert.equal(await instance.ownerOf.call(starId), user2);
 });
@@ -65,7 +64,6 @@ it('lets user2 buy a star and decreases its balance in ether', async() => {
     let balance = web3.utils.toWei(".05", "ether");
     await instance.createStar('awesome star', starId, {from: user1});
     await instance.putStarUpForSale(starId, starPrice, {from: user1});
-    let balanceOfUser1BeforeTransaction = await web3.eth.getBalance(user2);
     const balanceOfUser2BeforeTransaction = await web3.eth.getBalance(user2);
     await instance.buyStar(starId, {from: user2, value: balance, gasPrice:0});
     const balanceAfterUser2BuysStar = await web3.eth.getBalance(user2);