done

pom.xml

@@ -11,5 +11,13 @@
         <maven.compiler.source>1.8</maven.compiler.source>
         <maven.compiler.target>1.8</maven.compiler.target>
     </properties>
+    <dependencies>
+        <dependency>
+            <groupId>junit</groupId>
+            <artifactId>junit</artifactId>
+            <version>4.12</version>
+            <scope>test</scope>
+        </dependency>
+    </dependencies>
 
 </project>

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

@@ -0,0 +1,64 @@
+package com.zipcoder.payment;
+
+public class Check implements Payment{
+    long id;
+    String payerName;
+    private String routingNumber;
+    private String accountNumber;
+
+    public Check() {
+    }
+
+    public Check(long id, String payerName, String routingNumber, String accountNumber) {
+        this.id = id;
+        this.payerName = payerName;
+        this.routingNumber = routingNumber;
+        this.accountNumber = accountNumber;
+    }
+
+    public  void setID(Long id){
+        this.id = id;
+
+    }
+    @Override
+    public Long getID() {
+        return id;
+    }
+
+    public void setPayerName(String payerName) {
+        this.payerName = payerName;
+    }
+
+    public String getRoutingNumber() {
+        return routingNumber;
+    }
+
+    public void setRoutingNumber(String routingNumber) {
+        this.routingNumber = routingNumber;
+    }
+
+    public String getAccountNumber() {
+        return accountNumber;
+    }
+
+    public void setAccountNumber(String accountNumber) {
+        this.accountNumber = accountNumber;
+    }
+
+    @Override
+    public String getPayerName() {
+        return payerName;
+    }
+
+
+    @Override
+    public String getShortDescription() {
+        return "Check "+this.payerName + " ***" + this.accountNumber.substring(this.accountNumber.length() -4);
+    }
+
+
+    @Override
+    public int compareTo(Payment o) {
+        return this.getShortDescription().compareTo(o.getShortDescription());
+    }
+}

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

@@ -0,0 +1,58 @@
+package com.zipcoder.payment;
+
+public class CreditCard implements Payment{
+    private long id;
+    private String payerName;
+    private String routingNumber;
+    private String accountNumber;
+
+
+    public CreditCard() {
+    }
+
+    public  void setID(Long id){
+        this.id = id;
+
+    }
+    @Override
+    public Long getID() {
+        return id;
+    }
+
+    public void setPayerName(String payerName) {
+        this.payerName = payerName;
+    }
+
+    public String getRoutingNumber() {
+        return routingNumber;
+    }
+
+    public void setRoutingNumber(String routingNumber) {
+        this.routingNumber = routingNumber;
+    }
+
+    public String getAccountNumber() {
+        return accountNumber;
+    }
+
+    public void setAccountNumber(String accountNumber) {
+        this.accountNumber = accountNumber;
+    }
+
+    @Override
+    public String getPayerName() {
+        return payerName;
+    }
+
+    @Override
+    public String getShortDescription() {
+
+        return "CC " + this.payerName + " ***" + this.accountNumber.substring(this.accountNumber.length() -4);
+    }
+
+
+    @Override
+    public int compareTo(Payment o) {
+        return this.getShortDescription().compareTo(o.getShortDescription());
+    }
+}

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

@@ -0,0 +1,52 @@
+package com.zipcoder.payment;
+
+public class PayPal implements Payment{
+    long id;
+    String payerName;
+    String email;
+
+    public PayPal(long id, String payerName, String email) {
+        this.id = id;
+        this.payerName = payerName;
+        this.email = email;
+    }
+
+    public PayPal() {
+    }
+
+    public void setId(long id){
+        this.id = id;
+    }
+    @Override
+    public Long getID() {
+        return id;
+    }
+
+    public  void setPayerName(String payerName){
+        this.payerName = payerName;
+    }
+
+    @Override
+    public String getPayerName() {
+        return payerName;
+    }
+
+    public void setEmail(String email){
+        this.email = email;
+    }
+
+    public String getEmail(){
+        return email;
+    }
+
+    @Override
+    public String getShortDescription() {
+        return "Paypal " + this.getPayerName() + " " + this.getEmail();
+    }
+
+
+    @Override
+    public int compareTo(Payment o) {
+        return this.getShortDescription().compareTo(o.getShortDescription());
+    }
+}

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

@@ -0,0 +1,13 @@
+package com.zipcoder.payment;
+
+public interface Payment extends Comparable<Payment>{
+    long id = 0L;
+    String payerName = "";
+    String getShortDescription = "";
+
+    Long getID();
+
+    String getPayerName();
+
+    String getShortDescription();
+}

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

@@ -1,6 +1,43 @@
 package com.zipcoder.payment;
 
+import java.util.Arrays;
+
 public class PaymentPresenter {
+    PaymentSortByPayer sortPayment = new PaymentSortByPayer();
+
+    public PaymentPresenter() {
+    }
+
+    public String toString(Payment[] payments){
+        String result = "";
+        if(payments.length>0){
+            payments = sortPayment.compareArray(payments);
+            for(Payment p:payments){
+                result+= p.getShortDescription() + "\n";
+            }
+        }
+        return result;
+    }
 
+    public String toStringByPayerName(Payment[] payments){
+        String result = "";
+        if(payments.length>0){
+            payments = sortPayment.compareArrayByName(payments);
+            for(Payment p:payments){
+                result+= p.getShortDescription() + "\n";
+            }
+        }
+        return result;
+    }
 
+    public String toStringById(Payment[] payments) {
+        String result = "";
+        if (payments.length > 0) {
+            payments = sortPayment.compareArrayByID(payments);
+            for (Payment p : payments) {
+                result += p.getShortDescription() + "\n";
+            }
+        }
+        return result;
+    }
 }

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

@@ -0,0 +1,58 @@
+package com.zipcoder.payment;
+
+import java.util.Comparator;
+
+public class PaymentSortByPayer implements Comparator<Payment> {
+
+    @Override
+    public int compare(Payment o1, Payment o2) {
+        return o1.compareTo(o2);
+    }
+
+    public int compareByName(Payment o1,Payment o2){
+        return o1.getPayerName().compareTo(o2.getPayerName());
+    }
+
+    public int compareByID(Payment o1, Payment o2){
+        return o1.getID().compareTo(o2.getID());
+    }
+
+    public Payment[] compareArray(Payment[] payments){
+        for (int i = 0; i < payments.length-1; i++) {
+            for (int j = 0; j < payments.length-1; j++) {
+                if(compare(payments[j],payments[j+1])>0){
+                    Payment temp = payments[j];
+                    payments[j] = payments[j+1];
+                    payments[j+1] = temp;
+                }
+            }
+        }
+        return payments;
+    }
+
+    public Payment[] compareArrayByID(Payment[] payments){
+        for (int i = 0; i < payments.length-1; i++) {
+            for (int j = 0; j < payments.length-1; j++) {
+                if(compareByID(payments[j],payments[j+1])>0){
+                    Payment temp = payments[j];
+                    payments[j] = payments[j+1];
+                    payments[j+1] = temp;
+                }
+            }
+        }
+        return payments;
+    }
+
+    public Payment[] compareArrayByName(Payment[] payments){
+        for (int i = 0; i < payments.length-1; i++) {
+            for (int j = 0; j < payments.length-1; j++) {
+                if(compareByName(payments[j],payments[j+1])>0){
+                    Payment temp = payments[j];
+                    payments[j] = payments[j+1];
+                    payments[j+1] = temp;
+                }
+            }
+        }
+        return payments;
+    }
+}

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

@@ -0,0 +1,72 @@
+package com.zipcoder.payment;
+
+import org.junit.Assert;
+import org.junit.Test;
+
+public class CheckTest {
+
+    Check check = new Check();
+    PayPal payPal = new PayPal();
+
+    @Test
+    public void testGetSetID(){
+
+        check.setID(1000L);
+        Long expected = 1000L;
+        Long actual = check.getID();
+
+        Assert.assertEquals(expected, actual);
+    }
+
+    @Test
+    public void testGetSetPayerName(){
+
+        check.setPayerName("Stephanie Tanner");
+        String expected = "Stephanie Tanner";
+        String actual = check.getPayerName();
+
+        Assert.assertEquals(expected, actual);
+    }
+
+    @Test
+    public void testGetSetRoutingNumber(){
+        check.setRoutingNumber("12345");
+        String expected = "12345";
+        String actual = check.getRoutingNumber();
+
+        Assert.assertEquals(expected,actual);
+    }
+
+    @Test
+    public void testGetSetAccountNumber(){
+        check.setAccountNumber("54321");
+        String expected = "54321";
+        String actual = check.getAccountNumber();
+
+        Assert.assertEquals(expected,actual);
+    }
+
+    @Test
+    public void testGetDescription(){
+        check.setPayerName("PayerName");
+        check.setRoutingNumber("123Routing");
+        check.setAccountNumber("12345678");
+        String expected = "Check PayerName ***5678";
+        String actual =check.getShortDescription();
+
+        Assert.assertEquals(expected,actual);
+    }
+
+    @Test
+    public void testCompareTo(){
+        check.setPayerName("PayerName");
+        check.setRoutingNumber("123Routing");
+        check.setAccountNumber("12345678");
+
+        payPal.setPayerName("PayerName");
+        payPal.setEmail("payer@email.com");
+
+        Assert.assertTrue(check.compareTo(payPal)<0);
+    }
+
+}

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

@@ -0,0 +1,75 @@
+package com.zipcoder.payment;
+
+
+import org.junit.Assert;
+import org.junit.Test;
+
+public class CreditCardTest {
+    CreditCard creditCard = new CreditCard();
+    Check check = new Check();
+
+    @Test
+    public void testSetGetID(){
+        creditCard.setID(1000L);
+
+        long expected = 1000L;
+        long actual = creditCard.getID();
+
+        Assert.assertEquals(expected, actual);
+    }
+
+
+    @Test
+    public void testSetGetPayerName(){
+        creditCard.setPayerName("Payer");
+
+        String expected = "Payer";
+        String actual = creditCard.getPayerName();
+
+        Assert.assertEquals(expected, actual);
+    }
+
+    @Test
+    public void testSetGetRoutingNumber(){
+        creditCard.setRoutingNumber("1234");
+
+        String expected = "1234";
+        String actual = creditCard.getRoutingNumber();
+
+        Assert.assertEquals(expected, actual);
+    }
+
+    @Test
+    public void testSetGetAccountNumber(){
+        creditCard.setAccountNumber("12345");
+
+        String expected = "12345";
+        String actual = creditCard.getAccountNumber();
+
+        Assert.assertEquals(expected, actual);
+    }
+
+    @Test
+    public void testDescription(){
+        creditCard.setPayerName("PayerName");
+        creditCard.setRoutingNumber("123Routing");
+        creditCard.setAccountNumber("12345678");
+        String expected = "CC PayerName ***5678";
+        String actual =creditCard.getShortDescription();
+
+        Assert.assertEquals(expected,actual);
+    }
+
+    @Test
+    public void testCompareTo(){
+        check.setPayerName("PayerName");
+        check.setRoutingNumber("123Routing");
+        check.setAccountNumber("12345678");
+
+        creditCard.setPayerName("PayerName");
+        creditCard.setAccountNumber("123Account");
+        creditCard.setAccountNumber("321Routing");
+
+        Assert.assertTrue(check.compareTo(creditCard)>0);
+    }
+}

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

@@ -0,0 +1,58 @@
+package com.zipcoder.payment;
+
+import org.junit.Assert;
+import org.junit.Test;
+
+public class PayPalTest {
+    PayPal payPal = new PayPal();
+    Check check = new Check();
+
+    @Test
+    public void testSetGetID(){
+        payPal.setId(101010);
+        long expected = 101010L;
+        long actual = payPal.getID();
+
+        Assert.assertEquals(expected, actual);
+    }
+
+    @Test
+    public void testSetGetPayerName(){
+        payPal.setPayerName("Payer");
+        String expected = "Payer";
+        String actual = payPal.getPayerName();
+
+        Assert.assertEquals(expected, actual);
+    }
+
+    @Test
+    public void testSetGetEmail(){
+        payPal.setEmail("Payer@aol.com");
+        String expected = "Payer@aol.com";
+        String actual = payPal.getEmail();
+
+        Assert.assertEquals(expected, actual);
+    }
+
+    @Test
+    public void testGetDescription(){
+        payPal.setPayerName("PayerName");
+        payPal.setEmail("payer@email.com");
+        String expected = "Paypal PayerName payer@email.com";
+        String actual = payPal.getShortDescription();
+
+        Assert.assertEquals(expected,actual);
+    }
+
+    @Test
+    public void testCompareTo(){
+        check.setPayerName("PayerName");
+        check.setRoutingNumber("123Routing");
+        check.setAccountNumber("12345678");
+
+        payPal.setPayerName("PayerName");
+        payPal.setEmail("payer@email.com");
+
+        Assert.assertTrue(check.compareTo(payPal)<0);
+    }
+}

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

@@ -1,4 +1,68 @@
 package com.zipcoder.payment;
 
+import org.junit.Assert;
+import org.junit.Test;
+
 public class PaymentPresenterTest {
+
+
+    @Test
+    public void testToString_noPayment(){
+
+        Payment[] payments = new Payment[0];
+        PaymentPresenter presenter = new PaymentPresenter();
+        String expected = "";
+
+        String actual = presenter.toString(payments);
+
+        Assert.assertEquals(expected, actual);
+    }
+
+    @Test
+    public void testToString_multiPayments(){
+        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 testToStringByPayerName(){
+        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 testToStringById(){
+        Payment[] payments = new Payment[2];
+        Payment paypal = new PayPal(120L, "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 = "Check Tia Mowry ***4551\nPaypal Tamara Mowry tamara@mowry.com\n";
+
+        String actual = presenter.toStringById(payments);
+        Assert.assertEquals(expected, actual);
+    }
 }

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

@@ -0,0 +1,35 @@
+package com.zipcoder.payment;
+
+import org.junit.Assert;
+import org.junit.Test;
+
+public class PaymentSortByPayerTest {
+    PaymentSortByPayer paymentSortByPayer = new PaymentSortByPayer();
+    CreditCard creditCard = new CreditCard();
+    Check check = new Check();
+
+
+    @Test
+    public void testCompare_1After2(){
+        check.setPayerName("xyz");
+        creditCard.setPayerName("ABC");
+
+        Assert.assertTrue(paymentSortByPayer.compareByName(check,creditCard)>0);
+    }
+
+    @Test
+    public void testCompare_same(){
+        creditCard.setID(100L);
+        check.setID(100L);
+
+        Assert.assertTrue(paymentSortByPayer.compareByID(creditCard,check)==0);
+    }
+
+    @Test
+    public void testCompare_1Before2(){
+        check.setPayerName("xyz");
+        creditCard.setPayerName("ABC");
+
+        Assert.assertTrue(paymentSortByPayer.compareByName(creditCard,check)<0);
+    }
+}