Adjusted some tests and removed clearDatabase() method because of the reason of data persistence.

src/main/java/hhn/temp/project/provider/SimpleDatabaseManager.java

@@ -19,14 +19,14 @@ public class SimpleDatabaseManager implements DatabaseManager {
   private final static Path SELECT_TASK = Path.of("resources/sql/SelectTaskTable.sql");
   private final static Path UPDATE_TASK = Path.of("resources/sql/UpdateTaskTable.sql");
   private final static Path COUNT_ALL_TASK = Path.of("resources/sql/CountAllFieldsTask.sql");
-  private final static Path SELECT_ALL_TASK = Path.of("resources/sql/SelectAllFieldsTask.sql");
+  private final static Path SELECT_ALL_TASK = Path.of("resources/sql/SelectAllTask.sql");
   private final static Path SELECT_TASK_BY_ID = Path.of("resources/sql/SelectTaskById.sql");
   private final static Path INSERT_WORKER = Path.of("resources/sql/InsertWorkerTable.sql");
   private final static Path DELETE_WORKER = Path.of("resources/sql/DeleteWorkerTable.sql");
   private final static Path SELECT_WORKER = Path.of("resources/sql/SelectWorkerTable.sql");
   private final static Path UPDATE_WORKER = Path.of("resources/sql/UpdateWorkerTable.sql");
   private final static Path COUNT_ALL_WORKER = Path.of("resources/sql/CountAllFieldsWorker.sql");
-  private final static Path SELECT_ALL_WORKER = Path.of("resources/sql/SelectAllFieldsWorker.sql");
+  private final static Path SELECT_ALL_WORKER = Path.of("resources/sql/SelectAllWorker.sql");
   private final static Path SELECT_WORKER_BY_ID = Path.of("resources/sql/SelectWorkerById.sql");
 
   public enum QueryMode {
@@ -46,7 +46,7 @@ public class SimpleDatabaseManager implements DatabaseManager {
     SELECT_WORKER_BY_ID,
   }
 
-  public String loadFile(QueryMode queryMode) throws IOException {
+  private String loadFile(QueryMode queryMode) throws IOException {
     switch (queryMode) {
       case INSERT_TASK -> {
         return Files.readString(INSERT_TASK);
@@ -110,7 +110,7 @@ public class SimpleDatabaseManager implements DatabaseManager {
     try {
       query = loadFile(QueryMode.INSERT_TASK);
     } catch (IOException e) {
-      System.err.println(e.getStackTrace());
+      e.printStackTrace();
       return;
     }
     try (PreparedStatement preparedStatement = connection.prepareStatement(query);) {
@@ -136,7 +136,7 @@ public class SimpleDatabaseManager implements DatabaseManager {
     try {
       query = loadFile(QueryMode.INSERT_WORKER);
     } catch (IOException e) {
-      System.err.println(e.getStackTrace());
+      e.printStackTrace();
       return;
     }
     try (PreparedStatement preparedStatement = connection.prepareStatement(query);) {
@@ -159,7 +159,7 @@ public class SimpleDatabaseManager implements DatabaseManager {
     try {
       query = loadFile(QueryMode.UPDATE_TASK);
     } catch (IOException e) {
-      System.err.println(e.getStackTrace());
+      e.printStackTrace();
       return;
     }
     try (PreparedStatement preparedStatement = connection.prepareStatement(query);) {
@@ -177,7 +177,7 @@ public class SimpleDatabaseManager implements DatabaseManager {
     try {
       query = loadFile(QueryMode.UPDATE_WORKER);
     } catch (IOException e) {
-      System.err.println(e.getStackTrace());
+      e.printStackTrace();
       return;
     }
     try (PreparedStatement preparedStatement = connection.prepareStatement(query);) {
@@ -194,7 +194,7 @@ public class SimpleDatabaseManager implements DatabaseManager {
     try {
       query = loadFile(QueryMode.DELETE_TASK);
     } catch (IOException e) {
-      System.err.println(e.getStackTrace());
+      e.printStackTrace();
       return;
     }
     try (PreparedStatement preparedStatement = connection.prepareStatement(query);) {
@@ -209,7 +209,7 @@ public class SimpleDatabaseManager implements DatabaseManager {
     try {
       query = loadFile(QueryMode.DELETE_WORKER);
     } catch (IOException e) {
-      System.err.println(e.getStackTrace());
+      e.printStackTrace();
       return;
     }
     try (PreparedStatement preparedStatement = connection.prepareStatement(query);) {
@@ -224,7 +224,7 @@ public class SimpleDatabaseManager implements DatabaseManager {
     try {
       query = loadFile(QueryMode.SELECT_ALL_TASK);
     } catch (IOException e) {
-      System.err.println(e.getStackTrace());
+      e.printStackTrace();
       return null;
     }
 
@@ -257,7 +257,7 @@ public class SimpleDatabaseManager implements DatabaseManager {
     try {
       query = loadFile(QueryMode.SELECT_ALL_WORKER);
     } catch (IOException e) {
-      System.err.println(e.getStackTrace());
+      e.printStackTrace();
       return null;
     }
 
@@ -286,7 +286,7 @@ public class SimpleDatabaseManager implements DatabaseManager {
     try {
       query = loadFile(QueryMode.SELECT_TASK_BY_ID);
     } catch (IOException e) {
-      System.err.println(e.getStackTrace());
+      e.printStackTrace();
       return null;
     }
 
@@ -320,7 +320,7 @@ public class SimpleDatabaseManager implements DatabaseManager {
     try {
       query = loadFile(QueryMode.SELECT_WORKER_BY_ID);
     } catch (IOException e) {
-      System.err.println(e.getStackTrace());
+      e.printStackTrace();
       return null;
     }
 
@@ -350,7 +350,7 @@ public class SimpleDatabaseManager implements DatabaseManager {
     try {
       query = loadFile(QueryMode.COUNT_ALL_TASK);
     } catch (IOException e) {
-      System.err.println(e.getStackTrace());
+      e.printStackTrace();
       return -1;
     }
     try (Statement statement = connection.createStatement();
@@ -370,7 +370,7 @@ public class SimpleDatabaseManager implements DatabaseManager {
     try {
       query = loadFile(QueryMode.COUNT_ALL_WORKER);
     } catch (IOException e) {
-      System.err.println(e.getStackTrace());
+      e.printStackTrace();
       return -1;
     }
     try (Statement statement = connection.createStatement();

test/hhn/temp/project/DatabaseBadCasesTest.java

@@ -5,12 +5,8 @@ import hhn.temp.project.provider.SimpleDatabaseManager;
 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.*;
-
 public class DatabaseBadCasesTest {
 
   private DatabaseManager databaseManager;
@@ -19,7 +15,7 @@ public class DatabaseBadCasesTest {
   public void setup() throws SQLException {
     databaseManager = new SimpleDatabaseManager();
     databaseManager.connect();
-    databaseManager.clearDatabase();
+    //databaseManager.clearDatabase();
   }
 
   @Test
@@ -31,6 +27,9 @@ public class DatabaseBadCasesTest {
     databaseManager.saveTask(task);
 
     databaseManager.saveTask(taskFaker);
+
+    databaseManager.deleteTask(task.getTaskId());
+    databaseManager.deleteTask(taskFaker.getTaskId());
   }
 
   @Test
@@ -42,5 +41,8 @@ public class DatabaseBadCasesTest {
     databaseManager.saveWorker(worker);
 
     databaseManager.saveWorker(workerFaker);
+
+    databaseManager.deleteWorker(worker.getId());
+    databaseManager.deleteWorker(workerFaker.getId());
   }
 }

test/hhn/temp/project/DatabaseGoodCasesTest.java

@@ -7,8 +7,6 @@ import org.junit.jupiter.api.Test;
 
 import static org.junit.jupiter.api.Assertions.*;
 
-import java.io.IOException;
-import java.net.URISyntaxException;
 import java.sql.SQLException;
 import java.util.Collection;
 import java.util.List;
@@ -21,7 +19,7 @@ public class DatabaseGoodCasesTest {
   public void setup() throws SQLException {
     databaseManager = new SimpleDatabaseManager();
     databaseManager.connect();
-    databaseManager.clearDatabase();
+    //databaseManager.clearDatabase();
   }
 
   @Test
@@ -39,7 +37,7 @@ public class DatabaseGoodCasesTest {
     assertEquals(task.getName(), reTask.getName());
     assertEquals(task.getWorkerId(), reTask.getWorkerId());
 
-    assertEquals(1, databaseManager.getTotalNumberOfTasks());
+    databaseManager.deleteTask(task.getTaskId());
   }
 
   @Test
@@ -55,9 +53,11 @@ public class DatabaseGoodCasesTest {
 
     assertEquals(worker.getId(), reWorker.getId());
     assertEquals(worker.getName(), reWorker.getName());
+
+    databaseManager.deleteWorker(worker.getId());
   }
 
-  @Test
+  /*@Test
   @DisplayName("Clearing the database (Task and Worker) test")
   public void clearDatabaseTest() throws SQLException, InterruptedException {
     Task task1 = new Task(10, 5, "Hello", "World");
@@ -81,10 +81,5 @@ public class DatabaseGoodCasesTest {
 
     assertEquals(0, databaseManager.getTotalNumberOfTasks());
     assertEquals(0, databaseManager.getTotalNumberOfWorkers());
-  }
+  }*/
-
-  @Test
-  public void testRandom() throws IOException, URISyntaxException {
-     System.out.println(databaseManager.loadFile(SimpleDatabaseManager.QueryMode.INSERT_TASK));
-  }
 }