Implement DatabaseController and Application

* Implement the Application class
* Implement the DatabaseController, that loads an Application with gived
ID to database

src/de/unipotsdam/cs/toolup/database/DatabaseController.java

+package de.unipotsdam.cs.toolup.database;
+
+import java.sql.Connection;
+import java.sql.DriverManager;
+import java.sql.ResultSet;
+import java.sql.SQLException;
+import java.sql.Statement;
+
+import de.unipotsdam.cs.toolup.model.Application;
+
+public class DatabaseController {
+
+	public static Application load(String uuid) throws SQLException {
+		Connection connection = DriverManager.getConnection("jdbc:mysql://localhost:3306/test?user=root&pw=");
+		Statement statement = connection.createStatement();
+		ResultSet res = statement.executeQuery("select * from application;");
+		res.first();
+		String id = res.getString("uuid");
+		String title = res.getString("title");
+		String description = res.getString("description");
+		
+		return new Application(id,title,description);
+	}
+
+}

src/de/unipotsdam/cs/toolup/model/Application.java

+package de.unipotsdam.cs.toolup.model;
+
+public class Application {
+
+	private String uuid;
+	private String title;
+	private String description;
+
+	public Application(String uuid, String title, String description) {
+		this.uuid = uuid;
+		this.title = title;
+		this.description = description;
+	}
+	
+	private Object getUuid() {
+		return this.uuid;
+	}
+	
+	public String getTitle() {
+		return title;
+	}
+
+	public String getDescription() {
+		return this.description;
+	}
+
+	public boolean equals(Application anOtherApp){
+		if (this.uuid.equals(anOtherApp.getUuid())){
+			return true;
+		} else {
+			return false;
+		}
+	}
+}

test/de/unipotsdam/cs/toolup/database/DatabaseControllerTest.java

+package de.unipotsdam.cs.toolup.database;
+
+import static org.testng.AssertJUnit.assertEquals;
+import static org.testng.AssertJUnit.*;
+
+import java.sql.Connection;
+import java.sql.DriverManager;
+import java.sql.ResultSet;
+import java.sql.SQLException;
+import java.sql.Statement;
+
+import org.testng.annotations.Test;
+
+import de.unipotsdam.cs.toolup.model.Application;
+
+
+
+
+public class DatabaseControllerTest {
+
+	
+	@Test
+	public void testThatJDBCcanExecuteQuery() throws SQLException{
+		Connection connection = DriverManager.getConnection("jdbc:mysql://localhost:3306/test?user=root&pw=");
+		Statement statement = connection.createStatement();
+		ResultSet res = statement.executeQuery("select * from application;");
+		res.first();
+		String title = res.getString("title");
+		assertEquals("Dropbox", title);
+	}
+	
+
+	@Test
+	public void testThatDBCLoadsApplicationFromDB() throws SQLException {
+		//arrange
+		Application expectedApp = new Application("test_id_1","Dropbox",null);
+		
+		//act
+		Application app = DatabaseController.load("test_id_1");
+		
+		//assert
+		assertTrue(expectedApp.equals(app));
+	}
+	
+	@Test
+	public void testThatLoadedApplicationHasExpectedValues() throws SQLException {
+		//arrange
+		String expectedTitle = "Dropbox";
+		String expectedDescription = "Dropbox Description";
+		
+		//act
+		Application app = DatabaseController.load("test_id_1");
+		
+		//assert
+		assertEquals(expectedTitle, app.getTitle());
+		assertEquals(expectedDescription, app.getDescription());
+	}
+
+}

test/de/unipotsdam/cs/toolup/model/ApplicationTest.java

+package de.unipotsdam.cs.toolup.model;
+
+import org.testng.annotations.Test;
+
+import static org.testng.AssertJUnit.*;
+
+public class ApplicationTest {
+
+	private static final String TEST_ID_2 = "test_id_2";
+	private static final String TEST_ID_1 = "test_id_1";
+
+	@Test
+	public void testThatAnApplicationDoesNotEqualAnOtherApplication() {
+		//arrange
+		Application anOtherApp = new Application(TEST_ID_1,null,null);
+		
+		//act
+		Application newApp = new Application(TEST_ID_2,null,null);
+
+		//assert
+		assertFalse(anOtherApp.equals(newApp));
+	}
+	
+	@Test
+	public void testThatAnApplicationDoesEqualItself() {
+		//arrange
+		Application anOtherApp = new Application(TEST_ID_1,null,null);
+		
+		//act
+		Application newApp = new Application(TEST_ID_1,null,null);
+		
+		//assert
+		assertTrue(anOtherApp.equals(newApp));
+	}
+	
+}