feat: adds Kenrick's person class and person test (#321)

* feature:added person class and person test

* Feat:fixed person test

* chore: deletes lesson_07/objects/objects_app/src/test/java/com/codedifferently/lesson7/kenricksutherland/Persontest.java

---------

Co-authored-by: Kenrixkk22 <Ksutherland007@gmail.com>
Co-authored-by: Anthony D. Mays <anthonydmays@users.noreply.github.com>

lesson_07/objects/objects_app/src/main/java/com/codedifferently/lesson7/kenricksutherland/Person.java

@@ -0,0 +1,88 @@
+package com.codedifferently.lesson7.kenricksutherland;
+
+import java.util.ArrayList;
+
+public class Person {
+  private String name;
+  private int age;
+  private Gender gender;
+  private String occupation;
+  private String nationality;
+
+  public enum Gender {
+    MALE,
+    FEMALE,
+    OTHER
+  }
+
+  // Custom exception for invalid age
+  public static class InvalidAgeException extends Exception {
+    public InvalidAgeException(String message) {
+      super(message);
+    }
+  }
+
+  public Person(String name, int age, Gender gender, String occupation, String nationality)
+      throws InvalidAgeException {
+    if (age <= 0) {
+      throw new InvalidAgeException("Age must be a positive integer.");
+    }
+    this.name = name;
+    this.age = age;
+    this.gender = gender;
+    this.occupation = occupation;
+    this.nationality = nationality;
+  }
+
+  public String getName() {
+    return name;
+  }
+
+  public int getAge() {
+    return age;
+  }
+
+  public Gender getGender() {
+    return gender;
+  }
+
+  public String getOccupation() {
+    return occupation;
+  }
+
+  public String getNationality() {
+    return nationality;
+  }
+
+  public String getGenderPronoun() {
+    return switch (gender) {
+      case MALE -> "He";
+      case FEMALE -> "She";
+      default -> "They";
+    };
+  }
+
+  // Function using a collection (ArrayList)
+  public ArrayList<String> getPersonInfo() {
+    ArrayList<String> info = new ArrayList<>();
+    info.add("Name: " + name);
+    info.add("Age: " + age);
+    info.add("Gender: " + gender);
+    info.add("Occupation: " + occupation);
+    info.add("Nationality: " + nationality);
+    return info;
+  }
+
+  // Function using a loop
+  public void displayPersonInfo() {
+    ArrayList<String> info = getPersonInfo();
+    for (String line : info) {
+      System.out.println(line);
+    }
+  }
+
+  // Function using a conditional expression
+  public String getOccupationStatus() {
+    return occupation.isEmpty() ? "Unemployed" : "Employed as a " + occupation;
+  }
+}

lesson_07/objects/objects_app/src/test/java/com/codedifferently/lesson7/kenricksutherland/PersonsTest.java

@@ -0,0 +1,69 @@
+package com.codedifferently.lesson7.kenricksutherland;
+
+import static org.junit.jupiter.api.Assertions.*;
+
+import com.codedifferently.lesson7.kenricksutherland.Person.Gender;
+import com.codedifferently.lesson7.kenricksutherland.Person.InvalidAgeException;
+import org.junit.jupiter.api.Test;
+
+public class PersonsTest {
+
+  @Test
+  void testPersonInfo() {
+    try {
+      Person person = new Person("John Doe", 30, Gender.MALE, "Software Engineer", "USA");
+      assertEquals("John Doe", person.getName());
+      assertEquals(30, person.getAge());
+      assertEquals(Gender.MALE, person.getGender());
+      assertEquals("Software Engineer", person.getOccupation());
+      assertEquals("USA", person.getNationality());
+    } catch (Person.InvalidAgeException e) {
+      fail("InvalidAgeException should not be thrown in this test.");
+    }
+  }
+
+  @Test
+  void testGetGenderPronoun() throws InvalidAgeException {
+    Person person1 = new Person("John Doe", 30, Gender.MALE, "Software Engineer", "USA");
+    assertEquals("He", person1.getGenderPronoun());
+
+    Person person2 = new Person("Jane Doe", 25, Gender.FEMALE, "Doctor", "Canada");
+    assertEquals("She", person2.getGenderPronoun());
+
+    Person person3 = new Person("Alex Smith", 40, Gender.OTHER, "Artist", "France");
+    assertEquals("They", person3.getGenderPronoun());
+  }
+
+  @Test
+  void testGetPersonInfo() {
+    try {
+      Person person = new Person("John Doe", 30, Gender.MALE, "Software Engineer", "USA");
+      assertEquals(5, person.getPersonInfo().size());
+    } catch (Person.InvalidAgeException e) {
+      fail("InvalidAgeException should not be thrown in this test.");
+    }
+  }
+
+  @Test
+  void testDisplayPersonInfo() {
+    try {
+      Person person = new Person("John Doe", 30, Gender.MALE, "Software Engineer", "USA");
+      assertDoesNotThrow(() -> person.displayPersonInfo());
+    } catch (Person.InvalidAgeException e) {
+      fail("InvalidAgeException should not be thrown in this test.");
+    }
+  }
+
+  @Test
+  void testGetOccupationStatus() {
+    try {
+      Person employedPerson = new Person("John Doe", 30, Gender.MALE, "Software Engineer", "USA");
+      assertEquals("Employed as a Software Engineer", employedPerson.getOccupationStatus());
+
+      Person unemployedPerson = new Person("Jane Doe", 25, Gender.FEMALE, "", "Canada");
+      assertEquals("Unemployed", unemployedPerson.getOccupationStatus());
+    } catch (Person.InvalidAgeException e) {
+      fail("InvalidAgeException should not be thrown in this test.");
+    }
+  }
+}