submission

pom.xml

          xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
-
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-compiler-plugin</artifactId>
+                <configuration>
+                    <source>1.8</source>
+                    <target>1.8</target>
+                </configuration>
+            </plugin>
+        </plugins>
+    </build>
     <groupId>com.zipcoder</groupId>
     <artifactId>payment</artifactId>
     <version>1.0-SNAPSHOT</version>

src/main/java/com/zipcoder/payment/Check.java

 
     public Check(){}
 
+    public Check(Long id, String payerName, String routingName, String accountNumber){
+        this.id = id;
+        this.payerName = payerName;
+        this.routingName = routingName;
+        this.accountNumber = accountNumber;
+    }
+
     public Check(String payerName, String accountNumber){
         this.payerName = payerName;
         this.accountNumber = accountNumber;
         String lastFour = accountNumber.substring(accountNumber.length()-4);
         return lastFour;
     }
+
+    public int compareTo(Payment o) {
+        return this.getShortDescription().compareTo(o.getShortDescription());
+    }
 }

src/main/java/com/zipcoder/payment/CreditCard.java

         return lastFour;
     }
 
+    public int compareTo(Payment o) {
+        return this.getShortDescription().compareTo(o.getShortDescription());
+    }
 }

src/main/java/com/zipcoder/payment/PayPal.java

         this.email = email;
     }
 
+    public PayPal(Long id, String payerName, String email){
+        this.id = id;
+        this.payerName = payerName;
+        this.email = email;
+    }
+
     public Long getID() {
         return id;
     }
     public String getShortDescription() {
         return ("Paypal " + getPayerName() + " " + email);
     }
+
+    public int compareTo(Payment o) {
+        return this.getShortDescription().compareTo(o.getShortDescription());
+    }
 }

src/main/java/com/zipcoder/payment/Payment.java

 package com.zipcoder.payment;
 
-public interface Payment {
+public interface Payment extends Comparable<Payment> {
     Long getID();
 
     String getPayerName();

src/main/java/com/zipcoder/payment/PaymentPresenter.java

 package com.zipcoder.payment;
 
+import java.util.Arrays;
+import java.util.Comparator;
+
 public class PaymentPresenter {
 
+    public String toString(Payment[] payments) {
+        String result = "";
+        if (payments.length > 0) {
+           String[] descriptionArray = getArrayOfDescriptions(payments);
+           Arrays.sort(descriptionArray);
+           result = returnDescriptionsAsString(descriptionArray);
+        }
+        return result;
+    }
+
+    public String[] getArrayOfDescriptions(Payment[] payments) {
+        String[] descriptionArray = new String[payments.length];
+        for (int i = 0; i < payments.length; i++) {
+            descriptionArray[i] = payments[i].getShortDescription();
+            }
+        return descriptionArray;
+    }
+
+    public String returnDescriptionsAsString(String[] descriptions){
+        StringBuilder stringBuilder = new StringBuilder();
+        for(String element: descriptions){
+            stringBuilder.append(element + "\n");
+        }
+        return stringBuilder.toString();
+    }
+
+    public String toStringByPayerName(Payment[] payments){
+        Arrays.sort(payments, new PaymentSortByPayer());
+        return returnDescriptionsAsString(getArrayOfDescriptions(payments));
+    }
+
+    public String toStringById(Payment[] payments){
+        Comparator<Payment> compareById = Comparator.comparing(Payment::getID);
+        //Comparator<Payment> compareById = (payment1,payment2) -> payment1.getID().compareTo(payment2.getID());
+        Arrays.sort(payments,compareById);
+        return returnDescriptionsAsString(getArrayOfDescriptions(payments));
+    }
 
-}
+}

src/main/java/com/zipcoder/payment/PaymentSortByPayer.java

+package com.zipcoder.payment;
+
+import java.util.Comparator;
+
+public class PaymentSortByPayer implements Comparator<Payment> {
+
+    public int compare(Payment o1, Payment o2) {
+        return o1.getPayerName().compareTo(o2.getPayerName());
+    }
+}

src/test/java/com/zipcoder/payment/CheckTest.java

 
         Assert.assertEquals(expected,check.getLastFourDigits());
     }
+
+    @Test
+    public void compareToDifferentCheckTest(){
+        Check check = new Check("John Jacob", "12345");
+        Check check1 = new Check("Jingleheimer Schmidt", "45678");
+
+        Assert.assertTrue(check.compareTo(check1) > 0);
+    }
+
+    @Test
+    public void compareToCheckPayPalTest(){
+        Check check = new Check("John Jacob", "12345");
+        PayPal payPal = new PayPal();
+
+        Assert.assertTrue(payPal.compareTo(check) > 0);
+    }
 }

src/test/java/com/zipcoder/payment/CreditCardTest.java

 
         Assert.assertEquals(expected,creditCard.getLastFourDigits());
     }
+
+    @Test
+    public void compareToDifferentCCTest(){
+        CreditCard creditCard = new CreditCard("John Jacob", "1234567890123456", 12, 2018);
+        CreditCard creditCard1 = new CreditCard("Jingleheimer Schmidt", "0987654321098765",04,2019);
+
+        Assert.assertTrue(creditCard.compareTo(creditCard1) > 0);
+    }
+
+    @Test
+    public void compareToCCCheckTest(){
+        CreditCard creditCard = new CreditCard("John Jacob", "1234567890123456", 12, 2018);
+        Check check = new Check("John Jacob", "12345");
+
+        Assert.assertTrue(creditCard.compareTo(check) < 0);
+    }
 }

src/test/java/com/zipcoder/payment/PayPalTest.java

 
         Assert.assertEquals(expected, payPal.getShortDescription());
     }
+
+    @Test
+    public void compareToDifferentPayPalTest(){
+        PayPal payPal = new PayPal();
+        PayPal payPal1 = new PayPal();
+
+        Assert.assertTrue(payPal.compareTo(payPal1) == 0);
+    }
+
+    @Test
+    public void compareToCCPayPalTest(){
+        CreditCard creditCard = new CreditCard("John Jacob", "1234567890123456", 12, 2018);
+        PayPal payPal = new PayPal();
+
+        Assert.assertTrue(payPal.compareTo(creditCard) > 0);
+    }
 }

src/test/java/com/zipcoder/payment/PaymentPresenterTest.java

 package com.zipcoder.payment;
 
+import org.junit.Test;
+import org.junit.Assert;
+
 public class PaymentPresenterTest {
+    @Test
+    public void noPaymentTest() {
+        Payment[] payments = new Payment[0];
+        PaymentPresenter presenter = new PaymentPresenter();
+        String expected = "";
+
+        String actual = presenter.toString(payments);
+
+        Assert.assertEquals(expected, actual);
+    }
+
+    @Test
+    public void multiplePaymentsTest() {
+        Payment[] payments = new Payment[2];
+        Payment paypal = new PayPal(4L, "Tia Mowry", "tia@mowry.com");
+        Payment check = new Check(81L, "Tia Mowry", "11432543", "134344551");
+
+        payments[0] = paypal;
+        payments[1] = check;
+
+        PaymentPresenter presenter = new PaymentPresenter();
+        String expected = "Check Tia Mowry ***4551\nPaypal Tia Mowry tia@mowry.com\n";
+
+        String actual = presenter.toString(payments);
+        Assert.assertEquals(expected, actual);
+    }
+
+    @Test
+    public void toStringByPayerTest() {
+        Payment[] payments = new Payment[2];
+        Payment paypal = new PayPal(4L, "Tamara Mowry", "tamara@mowry.com");
+        Payment check = new Check(81L, "Tia Mowry", "11432543", "134344551");
+
+        payments[0] = paypal;
+        payments[1] = check;
+
+        PaymentPresenter presenter = new PaymentPresenter();
+        String expected = "Paypal Tamara Mowry tamara@mowry.com\nCheck Tia Mowry ***4551\n";
+
+        String actual = presenter.toStringByPayerName(payments);
+        Assert.assertEquals(expected, actual);
+    }
+
+    @Test
+    public void toStringByIdTest() {
+        Payment[] payments = new Payment[2];
+        Payment paypal = new PayPal(81L, "Tamara Mowry", "tamara@mowry.com");
+        Payment check = new Check(120L, "Tia Mowry", "11432543", "134344551");
+
+        payments[0] = paypal;
+        payments[1] = check;
+
+        PaymentPresenter presenter = new PaymentPresenter();
+        String expected = "Paypal Tamara Mowry tamara@mowry.com\nCheck Tia Mowry ***4551\n";
+
+        String actual = presenter.toStringById(payments);
+        Assert.assertEquals(expected, actual);
+    }
 }

src/test/java/com/zipcoder/payment/PaymentSortByPayerTest.java

+package com.zipcoder.payment;
+
+import org.junit.Assert;
+import org.junit.Test;
+
+public class PaymentSortByPayerTest {
+    @Test
+    public void compareDifferentCCTest() {
+        CreditCard creditCard = new CreditCard("John Jacob", "1234567890123456", 12, 2018);
+        CreditCard creditCard1 = new CreditCard("Jingleheimer Schmidt", "0987654321098765", 04, 2019);
+
+        Assert.assertTrue(creditCard.compareTo(creditCard1) > 0);
+    }
+
+    @Test
+    public void compareCCCheckTest() {
+        CreditCard creditCard = new CreditCard("John Jacob", "1234567890123456", 12, 2018);
+        Check check = new Check("John Jacob", "12345");
+
+        Assert.assertTrue(creditCard.compareTo(check) < 0);
+    }
+
+    @Test
+    public void compareToDifferentCheckTest(){
+        Check check = new Check("John Jacob", "12345");
+        Check check1 = new Check("Jingleheimer Schmidt", "45678");
+
+        Assert.assertTrue(check.compareTo(check1) > 0);
+    }
+
+    @Test
+    public void compareToCheckPayPalTest(){
+        Check check = new Check("John Jacob", "12345");
+        PayPal payPal = new PayPal();
+
+        Assert.assertTrue(payPal.compareTo(check) > 0);
+    }
+
+    @Test
+    public void compareToDifferentPayPalTest(){
+        PayPal payPal = new PayPal();
+        PayPal payPal1 = new PayPal();
+
+        Assert.assertTrue(payPal.compareTo(payPal1) == 0);
+    }
+
+    @Test
+    public void compareToCCPayPalTest(){
+        CreditCard creditCard = new CreditCard("John Jacob", "1234567890123456", 12, 2018);
+        PayPal payPal = new PayPal();
+
+        Assert.assertTrue(payPal.compareTo(creditCard) > 0);
+    }
+}
+