Update Thirdweb.Transactions.Tests.cs

Author: 0xFirekeeper

Thirdweb.Tests/Thirdweb.Transactions.Tests.cs

@@ -135,6 +135,16 @@ public async Task EstimateTotalCosts_WithoutSetting_CalculatesCostsCorrectly()
         Assert.NotEqual(BigInteger.Zero, costs.wei);
     }
 
+    [Fact]
+    public async Task EstimateTotalCosts_WithoutValue_CalculatesCostsCorrectly()
+    {
+        var transaction = await CreateSampleTransaction();
+
+        var costs = await ThirdwebTransaction.EstimateTotalCosts(transaction);
+
+        Assert.NotEqual(BigInteger.Zero, costs.wei);
+    }
+
     [Fact]
     public async Task EstimateGasCosts_CalculatesCostsCorrectly()
     {