Merge pull request #8125 from eugenp/revert-8119-BAEL-3275-2

Revert "BAEL-3275: Using blocking queue for pub-sub"

patterns/design-patterns-architectural/src/test/java/com/baeldung/daopattern/test/UserDaoUnitTest.java

@@ -0,0 +1,53 @@
+package com.baeldung.daopattern.test;
+
+import com.baeldung.daopattern.daos.UserDao;
+import com.baeldung.daopattern.entities.User;
+import java.util.List;
+import java.util.Optional;
+import static org.assertj.core.api.Assertions.assertThat;
+import org.junit.BeforeClass;
+import org.junit.Test;
+
+public class UserDaoUnitTest {
+  
+    private static UserDao userDao;
+    
+    
+    @BeforeClass
+    public static void setUpUserDaoInstance() {
+        userDao = new UserDao();
+    }
+    
+    @Test
+    public void givenUserDaoInstance_whenCalledget_thenOneAssertion() {
+        assertThat(userDao.get(0)).isInstanceOf(Optional.class);
+    }
+    
+    @Test
+    public void givenUserDaoInstance_whenCalledgetAll_thenOneAssertion() {
+        assertThat(userDao.getAll()).isInstanceOf(List.class);
+    }
+    
+    @Test
+    public void givenUserDaoInstance_whenCalledupdate_thenTwoAssertions() {
+        User user = new User("Julie", "julie@domain.com");
+        userDao.update(user, new String[] {"Julie", "julie@domain.com"});
+        assertThat(userDao.get(2).get().getName()).isEqualTo("Julie");
+        assertThat(userDao.get(2).get().getEmail()).isEqualTo("julie@domain.com");
+    }
+    
+    @Test
+    public void givenUserDaoInstance_whenCalledsave_thenTwoAssertions() {
+        User user = new User("Julie", "julie@domain.com");
+        userDao.save(user);
+        assertThat(userDao.get(2).get().getName()).isEqualTo("Julie");
+        assertThat(userDao.get(2).get().getEmail()).isEqualTo("julie@domain.com");
+    }
+    
+    @Test
+    public void givenUserDaoInstance_whenCalleddelete_thenOneAssertion() {
+        User user = new User("Julie", "julie@domain.com");
+        userDao.delete(user);
+        assertThat(userDao.getAll().size()).isEqualTo(2);
+    }
+}