Marcus Katalenas submission

src/main/java/com/github/curriculeon/Instructor.java

@@ -0,0 +1,17 @@
+package com.github.curriculeon;
+
+public class Instructor extends Person implements Teacher {
+
+
+    public void teach(Learner learner, double numberOfHours) {
+        learner.learn(numberOfHours);
+    }
+
+
+    public void lecture(Learner[] learners, double numberOfHours) {
+        double numberOfHoursPerStudent = numberOfHours/learners.length;
+        for (int count = 0; count < learners.length; count++){
+            learners[count].learn(numberOfHoursPerStudent);
+        }
+    }
+}

src/main/java/com/github/curriculeon/Learner.java

@@ -0,0 +1,6 @@
+package com.github.curriculeon;
+
+interface Learner {
+     void learn(Double numberOfHours);
+     Double getTotalStudyTime();
+}

src/main/java/com/github/curriculeon/People.java

@@ -0,0 +1,43 @@
+package com.github.curriculeon;
+
+import java.util.Iterator;
+import java.util.List;
+
+public class People<E> implements Iterable<E> {
+    private List<Person> personList;
+
+    public void add(Person person){
+        personList.add(person);
+    }
+    public Person findById(long id){
+        if(personList.contains(id)){
+            return null;
+        }
+        else{
+            return null;
+        }
+    }
+    public boolean contains(Person person){
+        return personList.contains(person);
+    }
+    public void remove(Person person){
+        personList.remove(person);
+    }
+    public void remove(long id){
+        personList.remove(id);
+    }
+    public void removeAll(){
+        personList.clear();
+    }
+    public Integer count(){
+        return personList.size();
+    }
+    public Person[] toArray(){
+        return (Person[]) personList.toArray();
+    }
+
+    @Override
+    public Iterator<E> iterator() {
+        return  (Iterator<E>) personList.iterator();
+    }
+}

src/main/java/com/github/curriculeon/Person.java

@@ -1,5 +1,28 @@
 package com.github.curriculeon;
 
 public class Person {
+    private final long id;
+    private String name;
+
+    Person(){
+        id = 0;
+        name = "";
+    }
+    Person(long i, String s){
+        id = i;
+        name = s;
+    }
+
+    public long getId() {
+        return id;
+    }
+
+    public String getName() {
+        return name;
+    }
+
+    public void setName(String name) {
+        this.name = name;
+    }
 
 }

src/main/java/com/github/curriculeon/Student.java

@@ -0,0 +1,25 @@
+package com.github.curriculeon;
+
+public class Student extends Person implements Learner {
+    private Double totalStudyTime = 0.0;
+
+    public Student(){
+        super();
+    }
+    public Student(Long id, String name){
+        super(id, name);
+    }
+
+    public Student(Double numOfHours){
+        super();
+        learn(numOfHours);
+    }
+    public void learn(Double numberOfHours) {
+        totalStudyTime += numberOfHours;
+    }
+
+
+    public Double getTotalStudyTime() {
+        return totalStudyTime;
+    }
+}

src/main/java/com/github/curriculeon/Students.java

@@ -0,0 +1,22 @@
+package com.github.curriculeon;
+
+public class Students {
+    final private static Students INSTANCE;
+
+    private Students(){
+
+    }
+
+    static{
+        try{
+            INSTANCE = new Students();
+        }
+        catch(Exception e){
+            throw new RuntimeException("Error in creating singleton instance");
+        }
+    }
+
+    public static Students getInsatnce() {
+        return INSTANCE;
+    }
+}

src/main/java/com/github/curriculeon/Teacher.java

@@ -0,0 +1,6 @@
+package com.github.curriculeon;
+
+public interface Teacher {
+    void teach(Learner learner, double numberOfHours);
+    void lecture(Learner[] learners, double numberOfHours);
+}

src/test/java/com/github/curriculeon/TestInstructor.java

@@ -0,0 +1,75 @@
+package com.github.curriculeon;
+import org.junit.Assert;
+import org.junit.Test;
+
+public class TestInstructor {
+    public void testImplementation(){
+        //Given
+        Object instructorOne = new Instructor();
+
+        //When
+
+        //Then
+        Assert.assertTrue(instructorOne instanceof Teacher);
+    }
+    public void testInheritance(){
+        //Given
+        Object instructorTwo = new Instructor();
+        //When
+
+        //Then
+        Assert.assertTrue(instructorTwo instanceof Person);
+    }
+    public void testTeach(Double hoursToAdd){
+        //Given
+        Instructor instructorThree = new Instructor();
+        Student studentOne = new Student();
+        Double currentStudentHours = studentOne.getTotalStudyTime();
+        Double expectedStudentHours = currentStudentHours + hoursToAdd;
+
+        //When
+        instructorThree.teach(studentOne, hoursToAdd);
+        Double actualStudentHours = studentOne.getTotalStudyTime();
+
+        //Then
+        Assert.assertEquals(actualStudentHours, expectedStudentHours);
+    }
+    public void testLecture(Double hours){
+        //Given
+        Teacher instructorFour = new Instructor();
+        Learner[] students = new Learner[]{
+                new Student(0l, "Marcus"),
+                new Student(1L, "Luke"),
+                new Student(2L, "Zach")
+        };
+        Double expectedHours = hours/students.length;
+        //When
+        instructorFour.lecture(students, hours);
+        //Then
+        for(int i = 0; i < students.length; i++){
+            Learner learner = students[i];
+            Double actualHours = learner.getTotalStudyTime();
+            Assert.assertEquals(actualHours,expectedHours);
+        }
+    }
+
+    @Test
+    public void test0(){
+        testImplementation();
+    }
+
+    @Test
+    public void test1(){
+        testInheritance();
+    }
+
+    @Test
+    public void test2(){
+        testTeach(5.0);
+    }
+
+    @Test
+    public void test3(){
+        testLecture(5.0);
+    }
+}

src/test/java/com/github/curriculeon/TestPerson.java

@@ -1,5 +1,40 @@
 package com.github.curriculeon;
-
+import org.junit.Assert;
+import org.junit.Test;
 public class TestPerson {
 
+    private void testConstructor(long expectedLong, String expectedString){
+        Person person = new Person(expectedLong, expectedString);
+
+        long actualLong = person.getId();
+        String actualString = person.getName();
+
+        Assert.assertEquals(expectedLong, actualLong);
+        Assert.assertEquals(expectedString, actualString);
+    }
+
+    public void testSetName(String expectedString){
+        Person person = new Person();
+
+        person.setName(expectedString);
+        String actualString = person.getName();
+
+        Assert.assertEquals(expectedString, actualString);
+
+    }
+
+    @Test
+    public void test0(){
+        testConstructor(1, "Marcus");
+    }
+
+    @Test
+    public void test1(){
+        testSetName("Marcus Katalenas");
+    }
+
+    @Test
+    public void test2(){
+        testSetName("");
+    }
 }

src/test/java/com/github/curriculeon/TestStudent.java

@@ -0,0 +1,56 @@
+package com.github.curriculeon;
+import org.junit.Assert;
+import org.junit.Test;
+
+public class TestStudent {
+
+    public void testImplementation(){
+        //Given
+        Student studentOne = new Student();
+        //When
+        Boolean result = studentOne instanceof  Learner;
+        //Then
+
+        Assert.assertTrue(result);
+
+    }
+    public void testInheritance(){
+        //Given
+        Student studentTwo = new Student();
+
+        //Where
+        Boolean result = studentTwo instanceof  Person;
+        //Then
+
+        Assert.assertTrue(result);
+    }
+    public void testLearn(Double expectedTimeToAdd){
+        //Given
+        Student studentThree = new Student(4.5);
+        //Where
+        Double actualHours = studentThree.getTotalStudyTime() + expectedTimeToAdd;
+        //Then
+        studentThree.learn(expectedTimeToAdd);
+        Double newHours = studentThree.getTotalStudyTime();
+        Assert.assertEquals(newHours, actualHours);
+    }
+
+    @Test
+    public void test0(){
+        testImplementation();
+    }
+
+    @Test
+    public void test1(){
+        testInheritance();
+    }
+
+    @Test
+    public void test2(){
+        testLearn(5.5);
+    }
+}
+
+
+
+