diff --git a/app/src/test/java/com/coderabbit/app/calculator/CalculatorTest.kt b/app/src/test/java/com/coderabbit/app/calculator/CalculatorTest.kt
index 871dadf..0ef6ff3 100644
--- a/app/src/test/java/com/coderabbit/app/calculator/CalculatorTest.kt
+++ b/app/src/test/java/com/coderabbit/app/calculator/CalculatorTest.kt
@@ -1,6 +1,7 @@
 package com.coderabbit.app.calculator
 
 import org.junit.Assert.assertEquals
+import org.junit.Assert.assertThrows
 import org.junit.Assert.assertTrue
 import org.junit.Test
 
@@ -23,4 +24,28 @@ class CalculatorTest {
         val calculator = Calculator()
         assertEquals(calculator.divide(4,2) ,2)
     }
+
+    @Test
+    fun `test divide function che divide`() {
+        val calculator = Calculator()
+        assertThrows(ArithmeticException::class.java){
+            calculator.divide(4,0)
+        }
+    }
+
+    @Test
+    fun `test divide function che divide zero`() {
+        val calculator = Calculator()
+        assertThrows(ArithmeticException::class.java){
+            calculator.divide(10,0)
+        }
+    }
+
+    @Test
+    fun `test divide function che divide zero by 17`() {
+        val calculator = Calculator()
+        assertThrows(ArithmeticException::class.java){
+            calculator.divide(17,0)
+        }
+    }
 }
\ No newline at end of file