Provide clearer example

Author: kasramp

assertj/src/main/java/com/geekyhacker/assertj/UserRepository.java

@@ -1,7 +1,17 @@
 package com.geekyhacker.assertj;
 
+import java.util.Optional;
+
 public class UserRepository {
 
+    public Optional<User> findBy(String username) {
+        try {
+            return Optional.of(findByUsername(username));
+        } catch (UserNotFoundException userNotFoundException) {
+            return Optional.empty();
+        }
+    }
+
     public User findByUsername(String username) throws UserNotFoundException {
         if (!"test".equalsIgnoreCase(username)) {
             throw new UserNotFoundException("Cannot find username: %s".formatted(username));

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

@@ -27,9 +27,9 @@ void shouldReturnUserByUsername() throws UserNotFoundException {
     }
 
     @Test
-    void shouldNotThrowExceptionWhenGettingUserByUsername() {
-        assertDoesNotThrow(() -> userRepository.findByUsername("test"));
-        assertThatCode(() -> userRepository.findByUsername("test")).doesNotThrowAnyException();
+    void shouldNotThrowExceptionWhenRetrievingUser() {
+        assertDoesNotThrow(() -> userRepository.findBy("test"));
+        assertThatCode(() -> userRepository.findBy("test")).doesNotThrowAnyException();
     }
 
     @Test