In this journal assignment, you will reflect on the contact service you submitted in Module Three and the task service you submitted in this module. Specifically, you will describe your unit testing approach and describe your experience with writing the JUnit tests. This will help to prepare you for the Project Two submission, due in Module Seven, in which you will submit a summary and reflections report.

Address the following questions:

To what extent was your testing approach aligned to the software requirements? Support your claims with specific evidence.

Defend the overall quality of your JUnit tests for the contact service and task service. In other words, how do you know that your JUnit tests were effective on the basis of coverage percentage?

How did you ensure that your code was technically sound? Cite specific lines of code from your tests to illustrate.

How did you ensure that your code was efficient? Cite specific lines of code from your tests to illustrate.

Contact.java

public class Contact$\{$

private String contactId;

private String firstName;

private String lastName;

private String phoneNumber;

private String address;

public Contact$($String contactId, String firstName, String lastName, String phoneNumber, String address$)\{$

this.contactId $=$ contactId;

this.firstName $=$ firstName;

this.lastName $=$ lastName;

this.phoneNumber $=$ phoneNumber;

this.address $=$ address;

$\}$

$//$ Getters and setters

public String getContactId$()\{$

return contactId;

$\}$

public String getFirstName$()\{$

return firstName;

$\}$

public void setFirstName$($String firstName$)\{$

this.firstName $=$ firstName;

$\}$

public String getLastName$()\{$

return lastName;

$\}$

public void setLastName$($String lastName$)\{$

this.lastName $=$ lastName;

$\}$

public String getPhoneNumber$()\{$

return phoneNumber;

$\}$

public void setPhoneNumber$($String phoneNumber$)\{$

this.phoneNumber $=$ phoneNumber;

$\}$

public String getAddress$()\{$

return address;

$\}$

public void setAddress$($String address$)\{$

this.address $=$ address;

$\}$

$\}$

ContactTest.Java

public class Contact$\{$

private String contactId;

private String firstName;

private String lastName;

private String phoneNumber;

private String address;

public Contact$($String contactId, String firstName, String lastName, String phoneNumber, String address$)\{$

this.contactId $=$ contactId;

this.firstName $=$ firstName;

this.lastName $=$ lastName;

this.phoneNumber $=$ phoneNumber;

this.address $=$ address;

$\}$

$//$ Getters and setters

public String getContactId$()\{$

return contactId;

$\}$

public String getFirstName$()\{$

return firstName;

$\}$

public void setFirstName$($String firstName$)\{$

this.firstName $=$ firstName;

$\}$

public String getLastName$()\{$

return lastName;

$\}$

public void setLastName$($String lastName$)\{$

this.lastName $=$ lastName;

$\}$

public String getPhoneNumber$()\{$

return phoneNumber;

$\}$

public void setPhoneNumber$($String phoneNumber$)\{$

this.phoneNumber $=$ phoneNumber;

$\}$

public String getAddress$()\{$

return address;

$\}$

public void setAddress$($String address$)\{$

this.address $=$ address;

$\}$

$\}$

ContactService.java

import java.util.HashMap;

import java.util.Map;

public class ContactService $\{$

private Map contacts;

public ContactService$()\{$

this.contacts $=$ new HashMap$<>()$;

$\}$

public void addContact$($Contact contact$)\{$

contacts.put$($contact$.$getContactId$(),$ contact$)$;

$\}$

public void deleteContact$($String contactId$)\{$

contacts.remove$($contactId$)$;

$\}$

public void updateContact$($String contactId, String firstName, String lastName, String phoneNumber, String address$)\{$

if $($contacts$.$containsKey$($contactId$))\{$

Contact contact $=$ contacts.get$($contactId$)$;

contact.setFirstName$($firstName$)$;

contact.setLastName$($lastName$)$;

contact.setPhoneNumber$($phoneNumber$)$;

contact.setAddress$($address$)$;

$\}$

$\}$

public Contact getContactById$($String contactId$)\{$

return contacts.get$($contactId$)$;

$\}$

$\}$

Cimport org.junit.jupiter.api.Test;

import static org.junit.jupiter.api.Assertions.$*$;

public class ContactServiceTest $\{$

@Test

public void testAddContact$()\{$

ContactService contactService $=$ new ContactService$()$;

Contact contact $=$ new Contact$("12345",$ "John", "Doe", $"1234567890","123$ Main St$")$;

contactService.addContact$($contact$)$;

assertEquals$($contact$,$ contactService.getContactById$("12345"))$;

$\}$

@Test

public void testDeleteContact$()\{$

ContactService contactService $=$ new ContactService$()$;

Contact contact $=$ new Contact$("12345","$