JUnit Assertions.assertThrows()

pom.xml

@@ -21,15 +21,13 @@
             <groupId>org.junit.jupiter</groupId>
             <artifactId>junit-jupiter-engine</artifactId>
             <version>5.8.2</version>
-            <scope>test</scope>
         </dependency>
 
         <!-- https://mvnrepository.com/artifact/org.junit.platform/junit-platform-runner -->
         <dependency>
             <groupId>org.junit.platform</groupId>
             <artifactId>junit-platform-runner</artifactId>
             <version>1.8.2</version>
-            <scope>test</scope>
         </dependency>
 
         <dependency>

src/main/java/com/thebackendpro/junit5/exceptionstesting/ArithmeticOperators.java

@@ -0,0 +1,11 @@
+package com.thebackendpro.junit5.exceptionstesting;
+
+public class ArithmeticOperators {
+
+    public int division(int a, int b) {
+        if(b == 0) {
+            throw new ArithmeticException("Cannot divide a number by 0");
+        }
+        return a/b;
+    }
+}

src/main/java/com/thebackendpro/junit5/exceptionstesting/ArithmeticOperatorsTest.java

@@ -0,0 +1,23 @@
+package com.thebackendpro.junit5.exceptionstesting;
+
+import org.junit.jupiter.api.Assertions;
+import org.junit.jupiter.api.Test;
+
+public class ArithmeticOperatorsTest {
+
+    @Test
+    public void divisionTestWhenExceptionIsThrown() {
+        ArithmeticOperators arithmeticOperators = new ArithmeticOperators();
+        ArithmeticException arithmeticException = Assertions.assertThrows(ArithmeticException.class,
+                () -> arithmeticOperators.division(5, 0), "Failed due to no excpeption is thrown");
+        Assertions.assertEquals("Cannot divide a number by 0", arithmeticException.getMessage());
+    }
+
+    @Test
+    public void divisionTestWhenNoExceptionIsThrown() {
+        ArithmeticOperators arithmeticOperators = new ArithmeticOperators();
+        ArithmeticException arithmeticException = Assertions.assertThrows(ArithmeticException.class,
+                () -> arithmeticOperators.division(5, 1), "Failed due to no excpeption is thrown");
+        Assertions.assertEquals("Cannot divide a number by 0", arithmeticException.getMessage());
+    }
+}