Below is a class I have written in a web application I am building using Java Google App Engine. I have written Unit Tests using TestNG and all the tests pass. I then run EclEmma in Eclipse to see the test coverage on my code. All the functions show 100% coverage but the file as a whole is showing about 27% coverage. Where is the 73% uncovered code coming from?

Can anyone help me understand how EclEmma works and why I am getting the discrepancy in numbers?

package com.skaxo.sports.models;

import javax.jdo.annotations.IdGeneratorStrategy;
import javax.jdo.annotations.IdentityType;
import javax.jdo.annotations.PersistenceCapable;
import javax.jdo.annotations.Persistent;
import javax.jdo.annotations.PrimaryKey;

@PersistenceCapable(identityType= IdentityType.APPLICATION)
public class Account {

    @PrimaryKey
    @Persistent(valueStrategy=IdGeneratorStrategy.IDENTITY)
    private Long id;

    @Persistent
    private String userId;

    @Persistent
    private String firstName;

    @Persistent
    private String lastName;

    @Persistent
    private String email;

    @Persistent
    private boolean termsOfService;

    @Persistent
    private boolean systemEmails;

    public Account() {}

    public Account(String firstName, String lastName, String email) {
    	super();
    	this.firstName = firstName;
    	this.lastName = lastName;
    	this.email = email;
    }

    public Account(String userId) {
    	super();
    	this.userId = userId;
    }

    public void setId(Long id) {
    	this.id = id;
    }

    public Long getId() {
    	return id;
    }

    public String getUserId() {
    	return userId;
    }

    public void setUserId(String userId) {
    	this.userId = userId;
    }

    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 getEmail() {
    	return email;
    }

    public void setEmail(String email) {
    	this.email = email;
    }

    public boolean acceptedTermsOfService() {
    	return termsOfService;
    }

    public void setTermsOfService(boolean termsOfService) {
    	this.termsOfService = termsOfService;
    }

    public boolean acceptedSystemEmails() {
    	return systemEmails;
    }

    public void setSystemEmails(boolean systemEmails) {
    	this.systemEmails = systemEmails;
    }
}

Below is the test code for the above class.

package com.skaxo.sports.models;

import static org.testng.Assert.assertEquals;
import static org.testng.Assert.assertNotNull;
import static org.testng.Assert.assertTrue;
import static org.testng.Assert.assertFalse;

import org.testng.annotations.BeforeTest;
import org.testng.annotations.Test;

public class AccountTest {

    @Test
    public void testId() {
    	Account a = new Account();
    	a.setId(1L);
    	assertEquals((Long) 1L, a.getId(), "ID");
    	a.setId(3L);
    	assertNotNull(a.getId(), "The ID is set to null.");
    }

    @Test
    public void testUserId() {
    	Account a = new Account();
    	a.setUserId("123456ABC");
    	assertEquals(a.getUserId(), "123456ABC", "User ID incorrect.");
    	a = new Account("123456ABC");
    	assertEquals(a.getUserId(), "123456ABC", "User ID incorrect.");
    }

    @Test
    public void testFirstName() {
    	Account a = new Account("Test", "User", "[email protected]");
    	assertEquals(a.getFirstName(), "Test", 
    			"User first name not equal to 'Test'.");
    	a.setFirstName("John");
    	assertEquals(a.getFirstName(), "John", 
    			"User first name not equal to 'John'.");
    }

    @Test
    public void testLastName() {
    	Account a = new Account("Test", "User", "[email protected]");
    	assertEquals(a.getLastName(), "User",
    			"User last name not equal to 'User'.");
    	a.setLastName("Doe");
    	assertEquals(a.getLastName(), "Doe", 
    			"User last name not equal to 'Doe'.");
    }

    @Test
    public void testEmail() {
    	Account a = new Account("Test", "User", "[email protected]");
    	assertEquals(a.getEmail(), "[email protected]", 
    			"User email not equal to '[email protected]'.");
    	a.setEmail("[email protected]");
    	assertEquals(a.getEmail(), "[email protected]", 
    			"User email not equal to '[email protected]'.");
    }

    @Test
    public void testAcceptedTermsOfService() {
    	Account a = new Account();
    	a.setTermsOfService(true);
    	assertTrue(a.acceptedTermsOfService(),
    			"Accepted Terms of Service not true.");
    	a.setTermsOfService(false);
    	assertFalse(a.acceptedTermsOfService(),
    			"Accepted Terms of Service not false.");
    }

    @Test
    public void testAcceptedSystemEmails() {
    	Account a = new Account();
    	a.setSystemEmails(true);
    	assertTrue(a.acceptedSystemEmails(), "System Emails is not true.");
    	a.setSystemEmails(false);
    	assertFalse(a.acceptedSystemEmails(), "System Emails is not false.");
    }
}