diff --git a/src/test/c/Stefan/test_slot_machine.c b/src/test/c/Stefan/test_slot_machine.c
index 4afa387..9781e62 100644
--- a/src/test/c/Stefan/test_slot_machine.c
+++ b/src/test/c/Stefan/test_slot_machine.c
@@ -13,6 +13,29 @@ void test_subtract_bet_10_from_balance_10() {
     //act
     int actualResult = subtractBetFromBalance(10, 10);
 
+    //assert
+    TEST_ASSERT_EQUAL_INT(expectedResult, actualResult);
+}
+void test_subtract_bet_0_from_balance_10() {
+
+    //arrange
+    int expectedResult = 10;
+
+    //act
+    int actualResult = subtractBetFromBalance(0, 10);
+
+    //assert
+    TEST_ASSERT_EQUAL_INT(expectedResult, actualResult);
+}
+
+void test_subtract_bet_5_from_balance_10() {
+
+    //arrange
+    int expectedResult = 5;
+
+    //act
+    int actualResult = subtractBetFromBalance(5, 10);
+
     //assert
     TEST_ASSERT_EQUAL_INT(expectedResult, actualResult);
 }
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