Lesson 2 is done

app/src/main/AndroidManifest.xml

@@ -8,14 +8,6 @@
         android:label="@string/app_name"
         android:roundIcon="@mipmap/ic_launcher_round"
         android:supportsRtl="true"
-        android:theme="@style/AppTheme">
-        <activity android:name=".MainActivity">
-            <intent-filter>
-                <action android:name="android.intent.action.MAIN" />
-
-                <category android:name="android.intent.category.LAUNCHER" />
-            </intent-filter>
-        </activity>
-    </application>
+        android:theme="@style/AppTheme"></application>
 
 </manifest>
\ No newline at end of file

app/src/main/java/com/example/paktalin/agilejava/CourseSession.java

+package com.example.paktalin.agilejava;
+
+import java.util.ArrayList;
+import java.util.Calendar;
+import java.util.Date;
+import java.util.GregorianCalendar;
+
+/**
+ * Created by Paktalin on 16/05/2018.
+ */
+
+class CourseSession {
+    private String department;
+    private String number;
+    private ArrayList<Student> students = new ArrayList<>();
+    private Date startDate;
+
+    CourseSession(String department, String number) {
+        this.department = department;
+        this.number = number;
+    }
+
+    CourseSession(String department, String number, Date startDate) {
+        this.department = department;
+        this.number = number;
+        this.startDate = startDate;
+    }
+
+    String getDepartment() {
+        return department;
+    }
+
+    String getNumber() {
+        return number;
+    }
+
+    void enroll(Student student) {
+        students.add(student);
+    }
+
+    Student get(int index) {
+        return students.get(index);
+    }
+
+    int getNumberOfStudents() {
+        return students.size();
+    }
+
+    Date getEndDate() {
+        GregorianCalendar calendar = new GregorianCalendar();
+        calendar.setTime(startDate);
+        calendar.add(Calendar.DAY_OF_YEAR, getNumberOfDays());
+        return calendar.getTime();
+    }
+
+    Date getStartDate() {
+        return startDate;
+    }
+
+    private  int getNumberOfDays() {
+        final int sessionLength = 16;
+        final int daysInWeek = 7;
+        final int daysFromFridayToMonday = 3;
+        return sessionLength * daysInWeek - daysFromFridayToMonday;
+    }
+}

app/src/main/java/com/example/paktalin/agilejava/MainActivity.java

-package com.example.paktalin.agilejava;
-
-import android.support.v7.app.AppCompatActivity;
-import android.os.Bundle;
-
-public class MainActivity extends AppCompatActivity {
-
-    @Override
-    protected void onCreate(Bundle savedInstanceState) {
-        super.onCreate(savedInstanceState);
-        setContentView(R.layout.activity_main);
-    }
-}

app/src/test/java/com/example/paktalin/agilejava/AllTests.java

+package com.example.paktalin.agilejava;
+
+import junit.framework.TestSuite;
+
+/**
+ * Created by Paktalin on 16/05/2018.
+ */
+
+public class AllTests extends TestSuite {
+
+    public static TestSuite suite() {
+        TestSuite suite = new TestSuite();
+        suite.addTestSuite(StudentTest.class);
+        suite.addTestSuite(CourseSessionTest.class);
+        return suite;
+    }
+}

app/src/test/java/com/example/paktalin/agilejava/CourseSessionTest.java

+package com.example.paktalin.agilejava;
+
+import junit.framework.TestCase;
+
+import java.util.Calendar;
+import java.util.Date;
+import java.util.GregorianCalendar;
+
+/**
+ * Created by Paktalin on 16/05/2018.
+ */
+
+public class CourseSessionTest extends TestCase {
+
+    private CourseSession session;
+    private Date startDate;
+
+    public void setUp() {
+        startDate = createDate(2003, 1, 6);
+        session = new CourseSession("ENGL", "101", startDate);
+    }
+
+    public void testCreate() {
+        assertEquals("ENGL", session.getDepartment());
+        assertEquals("101", session.getNumber());
+        assertEquals(0, session.getNumberOfStudents());
+        assertEquals(startDate, session.getStartDate());
+    }
+
+    public void testEnrollStudents() {
+        Student student1 = new Student("Cain DiVoe");
+        session.enroll(student1);
+        assertEquals(student1, session.get(0));
+        assertEquals(1, session.getNumberOfStudents());
+
+        Student student2 = new Student("Coralee DeVaughn");
+        session.enroll(student2);
+        assertEquals(student2, session.get(1));
+        assertEquals(2, session.getNumberOfStudents());
+    }
+
+    public void testCourseDates() {
+        Date sixteenWeeksOut = createDate(2003, 4, 25);
+        assertEquals(sixteenWeeksOut, session.getEndDate());
+    }
+
+    private Date createDate(int year, int month, int date) {
+        GregorianCalendar calendar = new GregorianCalendar();
+        calendar.clear();
+        calendar.set(Calendar.YEAR, year);
+        calendar.set(Calendar.MONTH, month - 1);
+        calendar.set(Calendar.DAY_OF_MONTH, date);
+        return calendar.getTime();
+    }
+}