finished using only lambdas

pom.xml

@@ -7,6 +7,26 @@
     <groupId>com.zipcoder</groupId>
     <artifactId>payment</artifactId>
     <version>1.0-SNAPSHOT</version>
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-compiler-plugin</artifactId>
+                <configuration>
+                    <source>8</source>
+                    <target>8</target>
+                </configuration>
+            </plugin>
+        </plugins>
+    </build>
+    <dependencies>
+        <dependency>
+            <groupId>junit</groupId>
+            <artifactId>junit</artifactId>
+            <version>RELEASE</version>
+            <scope>test</scope>
+        </dependency>
+    </dependencies>
 
 
 </project>

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

@@ -0,0 +1,67 @@
+package com.zipcoder.payment;
+
+public class Check implements Payment{
+
+    private long id;
+    private String payerName;
+    private String routingNumber;
+    private String accountNumber;
+
+    public Check(long id, String payerName, String accountNumber, String routingNumber){
+        this.id = id;
+        this.payerName = payerName;
+        this.accountNumber = accountNumber;
+        this.routingNumber = routingNumber;
+    }
+
+    public Check(String payerName, String accountNumber){
+        this.payerName = payerName;
+        this.accountNumber = accountNumber;
+    }
+
+    public Check(){
+
+    }
+
+    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;
+    }
+
+    public void setId(long id) {
+        this.id = id;
+    }
+
+    public Long getId(){
+     return id;
+    }
+
+    public void setPayerName(String payerName) {
+        this.payerName = payerName;
+    }
+
+    public String getPayerName(){
+      return payerName;
+    }
+    public String getShortDescription(){
+        return "Check " + getPayerName() + " ***" +
+                getAccountNumber().substring(getAccountNumber().length()-4, getAccountNumber().length());
+    }
+
+    public int compareTo(Payment o) {
+        return this.getId().compareTo(o.getId());
+
+    }
+
+}

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

@@ -0,0 +1,78 @@
+package com.zipcoder.payment;
+
+public class CreditCard implements Payment {
+
+    private long id;
+    private String payerName;
+    String number;
+    int expiredMonth;
+    int expiredYear;
+
+    public CreditCard(long id, String payerName, String number, int expiredMonth, int expiredYear){
+        this.id = id;
+        this.payerName = payerName;
+        this.number =number;
+        this.expiredMonth = expiredMonth;
+        this.expiredYear =expiredYear;
+    }
+
+    public CreditCard(String payerName, String number, int expiredMonth, int expiredYear){
+        this.payerName = payerName;
+        this.number =number;
+        this.expiredMonth = expiredMonth;
+        this.expiredYear =expiredYear;
+    }
+
+    public  CreditCard(){
+
+    }
+
+    public String getNumber() {
+        return number;
+    }
+
+    public void setNumber(String number) {
+        this.number = number;
+    }
+
+    public int getExpiredMonth() {
+        return expiredMonth;
+    }
+
+    public void setExpiredMonth(int expiredMonth) {
+        this.expiredMonth = expiredMonth;
+    }
+
+    public int getExpiredYear() {
+        return expiredYear;
+    }
+
+    public void setExpiredYear(int expiredYear) {
+        this.expiredYear = expiredYear;
+    }
+
+    public void setId(long id){
+        this.id = id;
+    }
+
+    public Long getId(){
+        return id;
+    }
+
+    public void setPayerName(String payerName){
+       this.payerName = payerName;
+    }
+    public String getPayerName(){
+        return payerName;
+    }
+
+    public String getShortDescription(){
+        return "CC " + getPayerName() + " " +
+                getNumber().substring(getNumber().length()-4, getNumber().length()) + " " +
+                getExpiredMonth() + "/" + getExpiredYear();
+    }
+    public int compareTo(Payment payment){
+       return this.getId().compareTo(payment.getId());
+    }
+
+}

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

@@ -0,0 +1,56 @@
+package com.zipcoder.payment;
+
+public class PayPal implements Payment {
+
+    private long id;
+    private String payerName;
+    private String email;
+
+    public  PayPal(long id, String payerName, String email){
+        this.id = id;
+        this.payerName = payerName;
+        this.email = email;
+    }
+
+    public  PayPal(String payerName, String email){
+        this.payerName = payerName;
+        this.email = email;
+    }
+
+    public PayPal(){
+
+    }
+
+    public String getEmail() {
+        return email;
+    }
+
+    public void setEmail(String email) {
+        this.email = email;
+    }
+    public void setId(long id) {
+        this.id = id;
+    }
+
+
+    public Long getId(){
+        return id;
+    }
+
+    public void setPayerName(String payerName) {
+        this.payerName = payerName;
+    }
+
+    public String getPayerName(){
+        return payerName;
+    }
+    public String getShortDescription(){
+      return  "Paypal " + getPayerName() + " " + getEmail();
+    }
+
+    public int compareTo(Payment payment){
+        return this.getId().compareTo(payment.getId());
+    }
+
+
+}

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

@@ -0,0 +1,10 @@
+package com.zipcoder.payment;
+
+public interface Payment extends Comparable<Payment>{
+
+    public Long getId();
+    public String getPayerName();
+    public String getShortDescription();
+
+
+}

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

@@ -1,6 +1,46 @@
 package com.zipcoder.payment;
 
+import java.util.Arrays;
+import java.util.Comparator;
+
 public class PaymentPresenter {
 
 
+    public String toString(Payment[] payment) {
+        return buildString(sortMultiplePayments(payment));
+    }
+
+    public Payment[] sortMultiplePayments(Payment[] payment) {
+        Arrays.sort(payment, Comparator.comparing(Payment::getShortDescription));
+        return payment;
+    }
+
+
+    public String toStringByPayerName(Payment[] payment) {
+        return buildString(sortByPayer(payment));
+    }
+
+    public Payment[] sortByPayer(Payment[] payment) {
+        Arrays.sort(payment, Comparator.comparing(Payment::getPayerName));
+        return payment;
+    }
+
+    public String toStringById(Payment[] payment) {
+        return buildString(sortByID(payment));
+    }
+
+    public Payment [] sortByID(Payment[] payment){
+        Arrays.sort(payment, Comparator.comparing(Payment::getId));
+        return payment;
+    }
+
+    public String buildString(Payment[] payment){
+        StringBuilder builder = new StringBuilder();
+        for(Payment p : payment)
+            builder.append(p.getShortDescription() + "\n");
+        return builder.toString();
+    }
+
+
+
 }

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

@@ -0,0 +1,70 @@
+package com.zipcoder.payment;
+
+import org.junit.Test;
+
+import static org.junit.Assert.*;
+
+public class CheckTest {
+
+    Check check = new Check();
+
+    @Test
+    public void getRoutingNumber() {
+        check.setRoutingNumber("928350383");
+
+        String expected = "928350383";
+        String actual = check.getRoutingNumber();
+
+        assertEquals(actual, expected);
+    }
+
+    @Test
+    public void getAccountNumber() {
+        check.setAccountNumber("292472491014");
+
+        String expected = "292472491014";
+        String actual = check.getAccountNumber();
+
+        assertEquals(actual, expected);
+    }
+
+    @Test
+    public void getId() {
+        check.setId(19838193);
+
+        long expected =19838193;
+        long actual = check.getId();
+
+        assertEquals(actual, expected);
+    }
+
+    @Test
+    public void getPayerName() {
+        check.setPayerName("Xerces The Great");
+
+        String expected = "Xerces The Great";
+        String actual = check.getPayerName();
+
+        assertEquals(actual, expected);
+    }
+
+    @Test
+    public void getShortDescription() {
+        check.setAccountNumber("1234 1723 1826 9736");
+        check.setPayerName("Xerces The Great");
+
+
+        String expected = "Check Xerces The Great ***9736";
+        String actual = check.getShortDescription();
+
+        assertEquals(actual, expected);
+    }
+
+    @org.junit.Test
+    public void compareTo(){
+        Check check = new Check("Jimmy Dean", "297393022");
+        PayPal pp = new PayPal("Slim Shady", "TheRealSlimShady@pleasestandup.com");
+
+        assertTrue(check.compareTo(pp) < 0 );
+    }
+}

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

@@ -0,0 +1,83 @@
+package com.zipcoder.payment;
+
+import static org.junit.Assert.*;
+
+public class CreditCardTest {
+
+    CreditCard card = new CreditCard();
+
+    @org.junit.Test
+    public void getId() {
+        card.setId(19838193);
+
+        long expected =19838193;
+        long actual = card.getId();
+
+        assertEquals(actual, expected);
+    }
+
+    @org.junit.Test
+    public void getPayerName() {
+        card.setPayerName("Xerces The Great");
+
+        String expected = "Xerces The Great";
+        String actual = card.getPayerName();
+
+        assertEquals(actual, expected);
+
+    }
+
+    @org.junit.Test
+    public void getNumber() {
+        card.setNumber("1234 1723 1826 9736");
+
+        String expected = "1234 1723 1826 9736";
+        String actual = card.getNumber();
+
+        assertEquals(actual, expected);
+    }
+
+    @org.junit.Test
+    public void getExpiredMonth() {
+        card.setExpiredMonth(11);
+
+        int expected = 11;
+        int actual = card.getExpiredMonth();
+
+        assertEquals(actual, expected);
+    }
+
+    @org.junit.Test
+    public void getExpiredYear() {
+        card.setExpiredYear(535);
+
+        int expected = 535;
+        int actual = card.getExpiredYear();
+
+        assertEquals(actual, expected);
+    }
+
+    @org.junit.Test
+    public void getShortDescription() {
+        card.setExpiredYear(535);
+        card.setExpiredMonth(11);
+        card.setNumber("1234 1723 1826 9736");
+        card.setPayerName("Xerces The Great");
+
+
+        String expected = "CC Xerces The Great 9736 11/535";
+        String actual = card.getShortDescription();
+
+        assertEquals(actual, expected);
+    }
+
+    @org.junit.Test
+    public void compareTo(){
+        CreditCard cc = new CreditCard("Jimmy Dean", "1023 2983 0839 2938", 9, 2040);
+        PayPal pp = new PayPal("Slim Shady", "TheRealSlimShady@pleasestandup.com");
+
+        assertTrue(cc.compareTo(pp) < 0 );
+    }
+
+
+}

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

@@ -0,0 +1,60 @@
+package com.zipcoder.payment;
+
+import org.junit.Test;
+
+import static org.junit.Assert.*;
+
+public class PayPalTest {
+
+    PayPal payPal = new PayPal();
+
+    @Test
+    public void getEmail() {
+        payPal.setEmail("IConquerBecauseIamLonely@ruleworld.com");
+
+        String expected = "IConquerBecauseIamLonely@ruleworld.com";
+        String actual = payPal.getEmail();
+
+        assertEquals(actual, expected);
+    }
+
+    @Test
+    public void getId() {
+        payPal.setId(19838193);
+
+        long expected =19838193;
+        long actual = payPal.getId();
+
+        assertEquals(actual, expected);
+    }
+
+    @Test
+    public void getPayerName() {
+        payPal.setPayerName("Xerces The Great");
+
+        String expected = "Xerces The Great";
+        String actual = payPal.getPayerName();
+
+        assertEquals(actual, expected);
+    }
+
+    @Test
+    public void getShortDescription() {
+        payPal.setEmail("IConquerBecauseIamLonely@ruleworld.com");
+        payPal.setPayerName("Xerces The Great");
+
+
+        String expected = "Paypal Xerces The Great IConquerBecauseIamLonely@ruleworld.com";
+        String actual = payPal.getShortDescription();
+
+        assertEquals(actual, expected);
+    }
+
+    @org.junit.Test
+    public void compareTo(){
+        CreditCard cc = new CreditCard("Jimmy Dean", "1023 2983 0839 2938", 9, 2040);
+        PayPal pp = new PayPal("Slim Shady", "TheRealSlimShady@pleasestandup.com");
+
+        assertTrue(cc.compareTo(pp) < 0 );
+    }
+}

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

@@ -1,4 +1,112 @@
 package com.zipcoder.payment;
 
+import org.junit.Test;
+
+import static org.junit.Assert.*;
+
 public class PaymentPresenterTest {
+
+    //When there is no payment
+    @Test
+    public void noPayment() {
+        Payment[] payment = new Payment[0];
+        PaymentPresenter presenter = new PaymentPresenter();
+        String expected = "";
+
+        String actual = presenter.toString(payment);
+
+        assertEquals(expected, actual);
+
+    }
+
+
+    //When there are multiple payments, you need to sort it first,
+    // then build the string using the short description
+
+    @Test
+    public void sortMultiplePayments() {
+        Payment[] payment = new Payment[2];
+        Payment paypal = new PayPal(4L, "Tia Mowry", "tia@mowry.com");
+        Payment check = new Check(81L, "Tia Mowry", "11432543", "134344551");
+
+        payment[0] = paypal;
+        payment[1] = check;
+
+        PaymentPresenter presenter = new PaymentPresenter();
+        String expected = "Check Tia Mowry ***2543\nPaypal Tia Mowry tia@mowry.com\n";
+
+        String actual = presenter.toString(payment);
+        assertEquals(expected, actual);
+    }
+
+
+    //Create a test case to test the toStringByPayerName method of the PaymentPresenter class
+    @Test
+    public void toStringByPayerName(){
+        Payment[] payment = new Payment[1];
+        Payment paypal = new PayPal(120L, "Tamara Mowry", "tamara@mowry.com");
+
+        payment[0] = paypal;
+        PaymentPresenter presenter = new PaymentPresenter();
+
+        String expected = "Paypal Tamara Mowry tamara@mowry.com";
+        String actual = presenter.toStringByPayerName(payment);
+        assertEquals(expected, actual);
+
+    }
+
+
+
+    //When there are multiple payments, you need to sort by calling the PaymentSortByPayer class to sort,
+    // then build the string using the short description
+
+    @Test
+    public void paymentSortByPayer() {
+        Payment[] payment = new Payment[2];
+        Payment paypal = new PayPal(4L, "Tamara Mowry", "tamara@mowry.com");
+        Payment check = new Check(81L, "Tia Mowry", "11432543", "134344551");
+
+        payment[0] = paypal;
+        payment[1] = check;
+
+        PaymentPresenter presenter = new PaymentPresenter();
+        String expected = "Paypal Tamara Mowry tamara@mowry.com\nCheck Tia Mowry ***2543\n";
+
+        String actual = presenter.toStringByPayerName(payment);
+        assertEquals(expected, actual);
+    }
+
+    //Create a test case to test the toStringById method of the PaymentPresenter class
+
+    @Test
+    public void toStringById(){
+        Payment[] payment = new Payment[1];
+        Payment paypal = new PayPal(120L, "Tamara Mowry", "tamara@mowry.com");
+
+        payment[0] = paypal;
+        PaymentPresenter presenter = new PaymentPresenter();
+
+        String expected = "Paypal Tamara Mowry tamara@mowry.com";
+        String actual = presenter.toStringById(payment);
+        assertEquals(expected, actual);
+
+    }
+
+    //When there are multiple payments, you need to sort by creating a lambda to sort the payment by id,
+    // then build the string using the short description
+    @Test
+    public void sortByID() {
+        Payment[] payment = new Payment[2];
+        Payment paypal = new PayPal(120L, "Tamara Mowry", "tamara@mowry.com");
+        Payment check = new Check(81L, "Tia Mowry", "11432543", "134344551");
+
+        payment[0] = paypal;
+        payment[1] = check;
+
+        PaymentPresenter presenter = new PaymentPresenter();
+        String expected = "Check Tia Mowry ***2543\nPaypal Tamara Mowry tamara@mowry.com\n";
+
+        String actual = presenter.toStringById(payment);
+        assertEquals(expected, actual);
+    }
 }