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pom.xml

@@ -12,4 +12,14 @@
         <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 +1,59 @@
+package com.zipcoder.payment;
+
+public class Check implements Payment {
+    long Id;
+    String payerName;
+    String routingNumber;
+    String accountNumber;
+
+    public Check(long id, String payerName, String routingNumber, String accountNumber) {
+        Id = id;
+        this.payerName = payerName;
+        this.routingNumber = routingNumber;
+        this.accountNumber = accountNumber;
+    }
+
+    public void setId(long id) {
+        Id = id;
+    }
+
+    public void setPayerName(String payerName) {
+        this.payerName = payerName;
+    }
+
+    public String getRoutingNumber() {
+        return routingNumber;
+    }
+
+    public void setRoutingNumber(String number) {
+        this.routingNumber = number;
+    }
+
+    public String getAccountNumber() {
+        return accountNumber;
+    }
+
+    public void setAccountNumber(String number) {
+        this.accountNumber = number;
+    }
+
+    @Override
+    public long getId() {
+        return this.Id;
+    }
+
+    @Override
+    public String getPayerName() {
+        return this.payerName;
+    }
+
+    @Override
+    public String getShortDescription() {
+        return String.format("CC %s %s ***%d", payerName, routingNumber.substring(routingNumber.length() - 4));
+    }
+
+    @Override
+    public int compareTo(Payment o) {
+        return this.getShortDescription().compareTo(o.getShortDescription());
+    }
+}

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

@@ -0,0 +1,70 @@
+package com.zipcoder.payment;
+
+public class CreditCard implements Payment {
+    long Id;
+    String payerName;
+    String number;
+    int expiredYear;
+
+    public CreditCard(long id, String payerName, String number, int expiredYear, int expiredMonth) {
+        Id = id;
+        this.payerName = payerName;
+        this.number = number;
+        this.expiredYear = expiredYear;
+        this.expiredMonth = expiredMonth;
+    }
+
+    int expiredMonth;
+
+    public void setId(long id) {
+        Id = id;
+    }
+
+    public void setPayerName(String payerName) {
+        this.payerName = payerName;
+    }
+
+    public String getNumber() {
+        return number;
+    }
+
+    public void setNumber(String number) {
+        this.number = number;
+    }
+
+    public int getExpiredYear() {
+        return expiredYear;
+    }
+
+    public void setExpiredYear(int expiredYear) {
+        this.expiredYear = expiredYear;
+    }
+
+    public int getExpiredMonth() {
+        return expiredMonth;
+    }
+
+    public void setExpiredMonth(int expiredMonth) {
+        this.expiredMonth = expiredMonth;
+    }
+
+    @Override
+    public long getId() {
+        return this.Id;
+    }
+
+    @Override
+    public String getPayerName() {
+        return this.payerName;
+    }
+
+    @Override
+    public String getShortDescription() {
+        return String.format("CC %s %s %d/%d", payerName, number.substring(number.length() - 4), expiredMonth, expiredYear);
+    }
+
+    @Override
+    public int compareTo(Payment o) {
+        return this.getShortDescription().compareTo(o.getShortDescription());
+    }
+}

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

@@ -0,0 +1,7 @@
+package com.zipcoder.payment;
+
+public interface Payment extends Comparable<Payment> {
+    long getId();
+    String getPayerName();
+    String getShortDescription();
+}

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

@@ -0,0 +1,10 @@
+package com.zipcoder.payment;
+
+import java.util.Comparator;
+
+public class PaymentSortByPayer implements Comparator<Payment> {
+    @Override
+    public int compare(Payment o1, Payment o2) {
+        return o1.getPayerName().compareTo(o2.getPayerName());
+    }
+}

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

@@ -0,0 +1,43 @@
+package com.zipcoder.payment;
+
+public class Paypal implements Payment {
+    long id;
+    String payerName;
+    String email;
+
+    public String getEmail() {
+        return email;
+    }
+
+    public void setEmail(String email) {
+        this.email = email;
+    }
+
+    @Override
+    public long getId() {
+        return this.id;
+    }
+
+    public void setId(long id) {
+        this.id = id;
+    }
+
+    @Override
+    public String getPayerName() {
+        return this.payerName;
+    }
+
+    public void setPayerName(String payerName) {
+        this.payerName = payerName;
+    }
+
+    @Override
+    public String getShortDescription() {
+        return String.format("Paypal %s %s", payerName, email);
+    }
+
+    @Override
+    public int compareTo(Payment o) {
+        return this.getShortDescription().compareTo(o.getShortDescription());
+    }
+}

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

@@ -0,0 +1,47 @@
+package com.zipcoder.payment;
+
+        import org.junit.Before;
+        import org.junit.Test;
+
+        import static org.junit.Assert.*;
+
+public class CheckTest {
+    Check check;
+
+    @Before
+    public void setUp() {
+        check = new Check(1, "owo", "23341", "22192");
+    }
+
+    @Test
+    public void testIdField() {
+        long expected = 1;
+        check.setId(expected);
+        long actual = check.getId();
+        assertEquals(expected, actual);
+    }
+
+    @Test
+    public void testPayerName() {
+        String expected = "Owo Bank";
+        check.setPayerName(expected);
+        String actual = check.getPayerName();
+        assertEquals(expected, actual);
+    }
+
+    @Test
+    public void testRoutingNumber() {
+        String expected = "2039230";
+        check.setRoutingNumber(expected);
+        String actual = check.getRoutingNumber();
+        assertEquals(expected, actual);
+    }
+
+    @Test
+    public void testAccountNumber() {
+        String expected = "1337";
+        check.setAccountNumber(expected);
+        String actual = check.getAccountNumber();
+        assertEquals(expected, actual);
+    }
+}

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

@@ -0,0 +1,55 @@
+package com.zipcoder.payment;
+
+import org.junit.Before;
+import org.junit.Test;
+
+import static org.junit.Assert.*;
+
+public class CreditCardTest {
+    CreditCard cc;
+
+    @Before
+    public void setUp() {
+        cc = new CreditCard(1, "wo", "wo", 1992, 10);
+    }
+
+    @Test
+    public void testIdField() {
+        long expected = 1;
+        cc.setId(expected);
+        long actual = cc.getId();
+        assertEquals(expected, actual);
+    }
+
+    @Test
+    public void testExpiredYear() {
+        int expected = 2001;
+        cc.setExpiredYear(expected);
+        int actual = cc.getExpiredYear();
+        assertEquals(expected, actual);
+    }
+
+    @Test
+    public void testExpiredMonth() {
+        int expected = 11;
+        cc.setExpiredMonth(expected);
+        int actual = cc.getExpiredMonth();
+        assertEquals(expected, actual);
+    }
+
+    @Test
+    public void testNumberField() {
+        String expected = "1337";
+        cc.setNumber(expected);
+        String actual = cc.getNumber();
+        assertEquals(expected, actual);
+    }
+
+    @Test
+    public void testPayerNameField() {
+        String expected = "Owo Banks";
+        cc.setPayerName(expected);
+        String actual = cc.getPayerName();
+        assertEquals(expected, actual);
+    }
+}

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

@@ -1,4 +1,32 @@
 package com.zipcoder.payment;
 
+import org.junit.Test;
+
+import static org.junit.Assert.assertEquals;
+
 public class PaymentPresenterTest {
+    @Test
+    public void noPayment() {
+        Payment[] payments = new Payment[0];
+        PaymentPresenter presenter = new PaymentPresenter();
+        String expected = "";
+        String actual = presenter.toString(payments);
+        assertEquals(expected, actual);
+    }
+
+    @Test
+    public void multiplePayments() {
+        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);
+        assertEquals(expected, actual);
+    }
 }

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

@@ -0,0 +1,39 @@
+package com.zipcoder.payment;
+
+import org.junit.Before;
+import org.junit.Test;
+
+import static org.junit.Assert.*;
+
+public class PaypalTest {
+    Paypal pp;
+
+    @Before
+    public void setUp() {
+        pp = new Paypal();
+    }
+
+    @Test
+    public void testId() {
+        long expected = 1;
+        pp.setId(expected);
+        long actual = pp.getId();
+        assertEquals(expected, actual);
+    }
+
+    @Test
+    public void testPayerName() {
+        String expected = "wooten";
+        pp.setPayerName(expected);
+        String actual = pp.getPayerName();
+        assertEquals(expected, actual);
+    }
+
+    @Test
+    public void testEmail() {
+        String expected = "OE@OW.com";
+        pp.setEmail(expected);
+        String actual = pp.getEmail();
+        assertEquals(expected, actual);
+    }
+}