done

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 +1,75 @@
+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) {
+        this.id = id;
+        this.payerName = payerName;
+        this.routingNumber = routingNumber;
+        this.accountNumber = accountNumber;
+    }
+
+    public Check() {
+        id = 0L;
+        payerName = "";
+        routingNumber = "";
+        accountNumber = "";
+
+    }
+
+
+    public void setId(Long id) {
+        this.id = id;
+    }
+
+    //on Payment interface
+    public Long getId() {
+        return id;
+    }
+
+
+    public void setPayerName(String payerName) {
+        this.payerName = payerName;
+    }
+
+    //on Payment interface
+    public String getPayerName() {
+        return payerName;
+    }
+
+    public void setRoutingNumber(String routingNumber) {
+        this.routingNumber = routingNumber;
+    }
+
+
+    public String getRoutingNumber() {
+        return routingNumber;
+    }
+
+    public void setAccountNumber(String accountNumber) {
+        this.accountNumber = accountNumber;
+    }
+
+
+    public String getAccountNumber() {
+        return accountNumber;
+    }
+
+
+    //on Payment interface
+    public String getShortDescription() {
+        return  "Check " + payerName +" ***"+accountNumber.substring(accountNumber.length()-4);
+    }
+
+
+    public int compareTo(Payment o) {
+        return this.getShortDescription().compareTo(o.getShortDescription());
+    }
+
+}

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

@@ -0,0 +1,82 @@
+package com.zipcoder.payment;
+
+public class CreditCard implements Payment {
+
+    Long id;
+    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() {
+        id = 0L;
+        payerName = "";
+        number = "";
+        expiredMonth = 0;
+        expiredYear = 0;
+    }
+
+
+    public void setId(Long id) {
+        this.id = id;
+    }
+
+    //on Payment interface
+    public Long getId() {
+        return id;
+    }
+
+
+    public void setPayerName(String payerName) {
+        this.payerName = payerName;
+    }
+
+    //on Payment interface
+    public String getPayerName() {
+        return payerName;
+    }
+
+
+    public void setNumber(String number) {
+        this.number = number;
+    }
+
+
+    public String getNumber() {
+        return number;
+    }
+
+
+    public void setExpiredMonth(int expiredMonth) {
+        this.expiredMonth = expiredMonth;
+    }
+
+    public int getExpiredMonth() {
+        return expiredMonth;
+    }
+
+    public void setExpiredYear(int expiredYear) {
+        this.expiredYear = expiredYear;
+    }
+
+    public int getExpiredYear() {
+        return expiredYear;
+    }
+
+    //on Payment interface
+    public String getShortDescription() {
+        return  "CC " + payerName +" "+number.substring(number.length()-4) + " "+expiredMonth + "/" + expiredYear;
+    }
+
+    public int compareTo(Payment o) {
+        return this.getShortDescription().compareTo(o.getShortDescription());
+    }
+}

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

@@ -0,0 +1,60 @@
+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() {
+        id = 0L;
+        payerName = "";
+        email = "";
+    }
+
+
+    public void setId(Long id) {
+        this.id = id;
+    }
+
+    //on Payment interface
+    public Long getId() {
+        return id;
+    }
+
+
+    public void setPayerName(String payerName) {
+        this.payerName = payerName;
+    }
+
+    //on Payment interface
+    public String getPayerName() {
+        return payerName;
+    }
+
+
+    public void setEmail(String email) {
+        this.email = email;
+    }
+
+
+    public String getEmail() {
+        return email;
+    }
+
+    //on Payment interface
+    public String getShortDescription() {
+        return  "Paypal " + payerName +" "+email;
+    }
+
+
+    public int compareTo(Payment o) {
+        return this.getShortDescription().compareTo(o.getShortDescription());
+    }
+}

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

@@ -0,0 +1,11 @@
+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 +1,49 @@
 package com.zipcoder.payment;
 
+import java.util.Arrays;
+import java.util.Comparator;
+
+
 public class PaymentPresenter {
 
 
-}
+    public String toString(Payment[] payments) {
+
+        Arrays.sort(payments);
+
+        StringBuilder sb = new StringBuilder();
+        for (int i = 0; i < payments.length; i++) {
+            sb.append(payments[i].getShortDescription() + "\n");
+        }
+        return sb.toString();
+    }
+
+    public String toStringByPayerName(Payment[] payments) {
+
+        Arrays.sort(payments, new PaymentSortByPayer());
+
+        StringBuilder sb = new StringBuilder();
+        for (int i = 0; i < payments.length; i++) {
+            sb.append(payments[i].getShortDescription() + "\n");
+        }
+        return sb.toString();
+    }
+
+    public String toStringById(Payment[] payments) {
+        // Arrays.sort(payments, new PaymentSortByPayer());
+
+        // We don't have a PaymentSortById class . (The PaymentSortByPayer class implements the Comparator interface(which has the "compare" method)!)
+        // MAKE A LAMBDA EXPRESSION!
+
+
+        Arrays.sort(payments, Comparator.comparing(Payment::getId));
+        StringBuilder sb = new StringBuilder();
+
+        for (int i = 0; i < payments.length; i++) {
+            sb.append(payments[i].getShortDescription() + "\n");
+        }
+
+        return sb.toString();
+
+    }
+}

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

@@ -0,0 +1,12 @@
+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

@@ -0,0 +1,68 @@
+package com.zipcoder.payment;
+
+import org.junit.Assert;
+import org.junit.Before;
+import org.junit.Test;
+
+public class CheckTest {
+
+
+    Check check;
+
+    @Before
+    public void setUp(){
+        check = new Check();
+    }
+
+    @Test
+    public void getSetIdTest() {
+        check.setId(1L);
+        Long expected = 1L;
+        Long actual = check.getId();
+        Assert.assertEquals(expected, actual);
+    }
+
+
+    @Test
+    public void getSetPayerNameTest() {
+        check.setPayerName("Aliza");
+        String expected = "Aliza";
+        String actual = check.getPayerName();
+        Assert.assertEquals(expected, actual);
+    }
+
+
+    @Test
+    public void getSetRoutingNumberTest() {
+        check.setRoutingNumber("031201360");
+        String expected = "031201360";
+        String actual = check.getRoutingNumber();
+        Assert.assertEquals(expected, actual);
+    }
+
+    @Test
+    public void getSetAccountNumberTest() {
+        check.setAccountNumber("0123456789");
+        String expected = "0123456789";
+        String actual = check.getAccountNumber();
+        Assert.assertEquals(expected, actual);
+    }
+
+
+    @Test
+    public void getShortDescriptionTest() {
+        check= new Check(1L, "Aliza Lang", "031201360", "0123456789");
+        String expected = "Check Aliza Lang ***6789";
+        String actual = check.getShortDescription();
+        Assert.assertEquals(expected, actual);
+    }
+
+    @Test
+    public void compareToTest() {
+        check = new Check(1L, "Aliza Lang", "031201360", "0123456789");
+        Check check2 = new Check(2L, "Tom Smith", "031201360", "9876543210");
+
+        int actual = check.compareTo(check2);
+        Assert.assertTrue(actual < 0);
+    }
+}

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

@@ -0,0 +1,77 @@
+package com.zipcoder.payment;
+
+import org.junit.Assert;
+import org.junit.Before;
+import org.junit.Test;
+
+public class CreditCardTest {
+
+    CreditCard creditCard;
+    @Before
+    public void setUp() {
+        creditCard = new CreditCard();
+    }
+    @Test
+    public void getSetIdTest() {
+        creditCard.setId(1L);
+        Long expected = 1L;
+        Long actual = creditCard.getId();
+        Assert.assertEquals(expected, actual);
+    }
+
+
+
+    @Test
+    public void getSetPayerNameTest() {
+        creditCard.setPayerName("Aliza");
+        String expected = "Aliza";
+        String actual = creditCard.getPayerName();
+        Assert.assertEquals(expected, actual);
+    }
+
+
+
+    @Test
+    public void getSetNumberTest() {
+        creditCard.setNumber("4444555566667777");
+        String expected = "4444555566667777";
+        String actual = creditCard.getNumber();
+        Assert.assertEquals(expected, actual);
+    }
+
+
+    @Test
+    public void getSetExpiredMonthTest() {
+        creditCard.setExpiredMonth(8);
+        int expected = 8;
+        int actual = creditCard.getExpiredMonth();
+        Assert.assertEquals(expected, actual);
+    }
+
+
+
+    @Test
+    public void getSetExpiredYearTest() {
+        creditCard.setExpiredYear(2022);
+        int expected = 2022;
+        int actual = creditCard.getExpiredYear();
+        Assert.assertEquals(expected, actual);
+    }
+
+    @Test
+    public void getShortDescriptionTest() {
+        creditCard = new CreditCard(1L, "Aliza Lang", "4444555566667777", 8, 2022);
+        String expected = "CC Aliza Lang 7777 8/2022";
+        String actual = creditCard.getShortDescription();
+        Assert.assertEquals(expected, actual);
+    }
+
+    @Test
+    public void compareToTest() {
+        creditCard = new CreditCard(1L, "Aliza Lang", "4444555566667777", 8, 2022);
+        CreditCard creditCard1 = new CreditCard(2L, "Tom Smith", "4444555566669999", 9, 2032);
+        int actual = creditCard.compareTo(creditCard1);
+        Assert.assertTrue(actual < 0);
+    }
+
+}

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

@@ -0,0 +1,56 @@
+package com.zipcoder.payment;
+
+import org.junit.Assert;
+import org.junit.Before;
+import org.junit.Test;
+
+public class PayPalTest {
+
+    PayPal payPal;
+
+    @Before
+    public void setUp() {
+        payPal = new PayPal();
+    }
+
+    @Test
+    public void getSetIdTest() {
+        payPal.setId(1L);
+        Long expected = 1L;
+        Long actual = payPal.getId();
+        Assert.assertEquals(expected, actual);
+    }
+
+
+    @Test
+    public void getSetPayerNameTest() {
+        payPal.setPayerName("Aliza Lang");
+        String expected = "Aliza Lang";
+        String actual = payPal.getPayerName();
+        Assert.assertEquals(expected, actual);
+    }
+
+    @Test
+    public void getSetEmailTest() {
+        payPal.setEmail("alizalang@gmail.com");
+        String expected = "alizalang@gmail.com";
+        String actual = payPal.getEmail();
+        Assert.assertEquals(expected, actual);
+    }
+
+    @Test
+    public void getShortDescriptionTest() {
+        payPal = new PayPal(1L, "Aliza Lang", "alizalang@gmail.com");
+        String expected = "Paypal Aliza Lang alizalang@gmail.com";
+        String actual = payPal.getShortDescription();
+        Assert.assertEquals(expected, actual);
+    }
+
+    @Test
+    public void compareToTest() {
+       PayPal payPal1 = new PayPal(1L, "Aliza Lang", "alizalang@gmail.com");
+       PayPal payPal2 = new PayPal(2L, "Tom Smith", "tomsmith@gmail.com");
+        int actual = payPal1.compareTo(payPal2);
+        Assert.assertTrue(actual < 0);
+    }
+}

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

@@ -1,4 +1,73 @@
 package com.zipcoder.payment;
 
+
+import org.junit.Test;
+
+import static org.junit.Assert.assertEquals;
+
 public class PaymentPresenterTest {
-}
+
+
+    @Test
+
+    public void toStringWhenNoPaymentTest() {
+
+        Payment[] payments = new Payment[0];
+        PaymentPresenter presenter = new PaymentPresenter();
+
+        String expected = "";
+        String actual = presenter.toString(payments);
+
+        assertEquals(expected, actual);
+    }
+
+    @Test
+    public void toStringWhenMultiplePaymentTest() {
+        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);
+    }
+
+
+    @Test
+    public void toStringByPayerNameTest(){
+
+        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);
+        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);
+        assertEquals(expected, actual);
+    }
+}

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

@@ -0,0 +1,50 @@
+package com.zipcoder.payment;
+
+import org.junit.Assert;
+import org.junit.Before;
+import org.junit.Test;
+
+public class PaymentSortByPayerTest {
+
+    PaymentSortByPayer paymentSortByPayer;
+    Check check;
+    PayPal payPal;
+    CreditCard creditCard;
+
+    @Before
+    public void setUp() {
+
+        paymentSortByPayer = new PaymentSortByPayer();
+        check = new Check(1L, "Aliza Lang", "0123456789", "031201360");
+        payPal = new PayPal(2L, "Tom Smith", "tomsmith@gmail.com");
+        creditCard = new CreditCard(1L, "Aliza Lang", "1111222233334444", 10, 2025);
+
+    }
+
+    @Test
+    public void ifPaymentOneComesAfterPaymentTwoCompareTest() {
+
+//  The compare method will return number larger than 0 if payment1 comes after payment2
+
+        int actual = paymentSortByPayer.compare(check, payPal);
+        Assert.assertTrue(actual < 0);
+    }
+
+    @Test
+    public void ifPaymentHasSameInformationCompareTest() {
+
+//    The compare method will return number 0 if the payment has the same information
+
+        int actual = paymentSortByPayer.compare(check, creditCard);
+        Assert.assertTrue(actual == 0);
+    }
+
+    @Test
+    public void ifPaymentOneComesBeforePaymentTwoCompareTest() {
+
+//    The compare method will return number less than 0 if payment1 comes before payment2
+
+        int actual = paymentSortByPayer.compare(payPal, check);
+        Assert.assertTrue(actual > 0);
+    }
+}