Added new tests that needs to be implemented.

test/hhn/temp/project/DatabaseBadCasesTest.java

@@ -6,6 +6,7 @@ import org.junit.jupiter.api.BeforeEach;
 import org.junit.jupiter.api.DisplayName;
 import org.junit.jupiter.api.Test;
 
+import java.io.IOException;
 import java.sql.SQLException;
 
 import static org.junit.jupiter.api.Assertions.*;
@@ -27,7 +28,21 @@ public class DatabaseBadCasesTest {
   }
 
   @BeforeEach
-  public void setup() {
+  public void setup() throws SQLException, IOException {
     databaseManager = new SimpleDatabaseManager<>();
+    databaseManager.connect();
+    databaseManager.clearDatabase();
+  }
+
+  @Test
+  @DisplayName("Gets an object that may not be existent")
+  public void assertObjectShouldNotBeExistent() throws SQLException {
+    assertNull(databaseManager.getObject(999));
+  }
+
+  @Test
+  @DisplayName("Updates an object that does not exist")
+  public void assertUpdateNonExistentObject() throws SQLException {
+    assertNull(databaseManager.updateObject(123, new Task(1, 2, "", "")));
   }
 }

test/hhn/temp/project/DatabaseGoodCasesTest.java

@@ -2,7 +2,6 @@ package hhn.temp.project;
 
 import hhn.temp.project.provider.DatabaseManager;
 import hhn.temp.project.provider.SimpleDatabaseManager;
-import jdk.jshell.spi.ExecutionControl;
 import org.junit.jupiter.api.BeforeEach;
 import org.junit.jupiter.api.DisplayName;
 import org.junit.jupiter.api.Test;
@@ -17,19 +16,17 @@ import java.util.Collection;
 public class DatabaseGoodCasesTest {
 
   private DatabaseManager<Task> databaseManager;
-  private AssignmentManager manager;
 
   @BeforeEach
   public void setup() throws SQLException, IOException {
     databaseManager = new SimpleDatabaseManager<>();
     databaseManager.connect();
     databaseManager.clearDatabase();
-    manager = new AssignmentManager();
   }
 
   @Test
   @DisplayName("Assert that the TestClass could be inserted into the database")
-  public void assertGetTestClass() throws SQLException, IOException {
+  public void assertGetTestClass() throws SQLException {
 
     databaseManager.connect();
 
@@ -48,9 +45,26 @@ public class DatabaseGoodCasesTest {
     databaseManager.close();
   }
 
+  @Test
+  @DisplayName("Assert that an inserted and deleted task is not there anymore")
+  public void assertDeleteTest() throws SQLException {
+
+    databaseManager.connect();
+
+    Task task = new Task(9, 1, "hi", "hi");
+
+    databaseManager.saveObject(task);
+
+    databaseManager.deleteObject(9);
+
+    databaseManager.getObject(9);
+
+    databaseManager.close();
+  }
+
   @Test
   @DisplayName("Assert that a simple Task could be inserted into the database")
-  public void assertInsertTask() throws SQLException, IOException, ExecutionControl.NotImplementedException {
+  public void assertInsertTask() throws SQLException {
 
     Task testTask = new Task(1, 1, "Hello World", "Description");
 
@@ -60,8 +74,8 @@ public class DatabaseGoodCasesTest {
   }
 
   @Test
-  @DisplayName("Assert that simple Tasks could be inserted into the database")
-  public void assertInsertMultipleTasks() throws SQLException, IOException, ExecutionControl.NotImplementedException {
+  @DisplayName("Assert that multiple Tasks could be inserted into the database")
+  public void assertInsertMultipleTasks() throws SQLException {
 
     Task testTaskZero = new Task(1, 1, "Hello", "Description");
     Task testTaskOne = new Task(2, 2, "World", "Description");
@@ -76,4 +90,25 @@ public class DatabaseGoodCasesTest {
     databaseManager.saveObjects(tasks);
     databaseManager.close();
   }
+
+  @Test
+  @DisplayName("Assert insert object and update it")
+  public void assertInsertUpdateTask() throws SQLException {
+
+    int taskId = 1;
+
+    Task testTask = new Task(taskId, 1, "Hello World", "Description");
+    Task newTask = new Task(taskId, 1, "No World", "Description");
+
+    databaseManager.connect();
+    databaseManager.saveObject(testTask);
+    newTask = databaseManager.updateObject(testTask.getTaskId(), newTask);
+
+    assertNotNull(testTask);
+
+    assertNotEquals(testTask.getDescription(), newTask.getDescription());
+    assertEquals(testTask.getTaskId(), newTask.getTaskId());
+
+    databaseManager.close();
+  }
 }