diff --git a/contracts/tests/test_contract.cairo b/contracts/tests/test_contract.cairo
index a74fe02..823bd43 100644
--- a/contracts/tests/test_contract.cairo
+++ b/contracts/tests/test_contract.cairo
@@ -1 +1,18 @@
-// contract test in here
\ No newline at end of file
+use snforge_std::{ declare, ContractClassTrait };
+use contracts::{ IHelloStarknetDispatcher, IHelloStarknetDispatcherTrait };
+
+#[test]
+fn test_balance() {
+    let contract = declare("HelloStarknet");
+    let contract_address = contract.deploy(@ArrayTrait::new()).unwrap();
+
+    let dispatcher = IHelloStarknetDispatcher { contract_address };
+
+    let balance = dispatcher.get_balance();
+    assert(balance == 0, 'Balance is wrong');
+
+    dispatcher.increase_balance(69);
+
+    let updated_balance = dispatcher.get_balance();
+    assert(updated_balance == 69, 'Balance wasnt updated correctly');
+}