Add assert no exception thrown case

Author: kasramp

assertj/src/test/java/com/geekyhacker/assertj/UserRepositoryTest.java

@@ -1,7 +1,9 @@
 package com.geekyhacker.assertj;
 
 import static org.assertj.core.api.Assertions.assertThat;
+import static org.assertj.core.api.Assertions.assertThatCode;
 import static org.assertj.core.api.Assertions.assertThatThrownBy;
+import static org.junit.jupiter.api.Assertions.assertDoesNotThrow;
 import static org.junit.jupiter.api.Assertions.assertThrows;
 
 import org.junit.jupiter.api.Test;
@@ -24,6 +26,12 @@ void shouldReturnUserByUsername() throws UserNotFoundException {
         assertThat(result).isEqualTo(expected);
     }
 
+    @Test
+    void shouldNotThrowExceptionWhenGettingUserByUsername() {
+        assertDoesNotThrow(() -> userRepository.findByUsername("test"));
+        assertThatCode(() -> userRepository.findByUsername("test")).doesNotThrowAnyException();
+    }
+
     @Test
     void shouldThrowUserNotFoundException() {
         assertThatThrownBy(() -> userRepository.findByUsername("nonExistenceUsername"))