Help!

I created the following VF pages along with the custom controller based on the example from the SFDC cookbook (almost word for word) but I have no idea how to promote to production since I have no idea how to write the unit test to validate the coverage (only at 51%).  Any help would be appreciated.

Page 1 of 3

<apex:page controller="newDonationController"tabStyle="Opportunity">

<apex:sectionHeader title="NewCustomerOpportunity"subtitle="Step1of3"/>

<apex:form >

<apex:pageBlock title="CustomerInformation">

<apex:facet name="footer">

<apex:commandButton action="{!step2}"value="Next"styleClass="btn"/>

</apex:facet>

<apex:pageBlockSection title="AccountInformation">

<apex:panelGrid columns="2">

<apex:outputLabel value="Account Name"for="accountName"/>

<apex:inputField id="accountName"value="{!account.name}"/>

</apex:panelGrid>

</apex:pageBlockSection>

<apex:pageBlockSection title="ContactInformation">

<apex:panelGrid columns="2">

<apex:outputLabel value="First Name"for="contactFirstName"/>

<apex:inputField id="contactFirstName"value="{!contact.firstName}"/>

<apex:outputLabel value="Last Name"for="contactLastName"/>

<apex:inputField id="contactLastName"value="{!contact.lastName}"/>

<apex:outputLabel value="Phone"for="contactPhone"/>

<apex:inputField id="contactPhone"value="{!contact.phone}"/>

<apex:outputLabel value="Email"for="contactEmail"/>

<apex:inputField id="contactEmail"value="{!contact.email}"/>

</apex:panelGrid>

</apex:pageBlockSection>

</apex:pageBlock>

</apex:form>

</apex:page>

Page 2 of 3

<apex:page controller="newDonationController"

tabStyle="Opportunity">

<apex:sectionHeader title="NewCustomerOpportunity"

subtitle="Step2of3"/>

<apex:form>

<apex:pageBlock title="Donation Information">

<apex:facet name="footer">

<apex:outputPanel>

<apex:commandButton action="{!step1}" value="Previous"

styleClass="btn"/>

<apex:commandButton action="{!step3}" value="Next"

styleClass="btn"/>

</apex:outputPanel>

</apex:facet>

<apex:pageBlockSection title="Donation Information">

<apex:panelGrid columns="2">

<apex:outputLabel value="Donation Name"

for="opportunityName"/>

<apex:inputField id="opportunityName"

value="{!opportunity.name}"/>

<apex:outputLabel value="Amount"

for="opportunityAmount"/>

<apex:inputField id="opportunityAmount"

value="{!opportunity.amount}"/>

<apex:outputLabel value="Close Date"

for="opportunityCloseDate"/>

<apex:inputField id="opportunityCloseDate"

value="{!opportunity.closeDate}"/>

<apex:outputLabel value="Type"

for="opportunityType"/>

<apex:inputField id="opportunityType"

value="{!opportunity.type}"/>

<apex:outputLabel value="Stage"

for="opportunityStageName"/>

<apex:inputField id="opportunityStageName"

value="{!opportunity.stageName}"/>

<apex:outputLabel value="Payment Type"

for="opportunityPaymentType"/>

<apex:inputField id="opportunityPaymentType"

value="{!opportunity.NFG__Payment_Type__c}"/>

<apex:outputLabel value="Check Date"

for="opportunityCheckDate"/>

<apex:inputField id="opportunityCheckDate"

value="{!opportunity.Check_Date__c}"/>

<apex:outputLabel value="Check #"

for="opportunityCheckNo"/>

<apex:inputField id="opportunityCheckNo"

value="{!opportunity.Check_Number__c}"/>

<apex:outputLabel value="Deposit Date"

for="opportunityDepositDate"/>

<apex:inputField id="opportunityDepositDate"

value="{!opportunity.Bank_Deposit_Date__c}"/>

<apex:outputLabel value="Primary Campaign"

for="opportunityCampaign"/>

<apex:inputField id="opportunityCampaign"

value="{!opportunity.CampaignId}"/>

<apex:outputLabel value="Internet Source"

for="opportunityInternetSource"/>

<apex:inputField id="opportunityInternetSource"

value="{!opportunity.NFG__Internet_Donation_Source__c}"/>

<apex:outputLabel value="Program Desingation"

for="opportunityProgram"/>

<apex:inputField id="opportunityProgram"

value="{!opportunity.Program_Designation__c}"/>

<apex:outputLabel value="Contact Role: {!contact.firstName} {!contact.lastName}"

for="contactRole"/><apex:inputField id="contactRole"

value="{!role.role}"/>

</apex:panelGrid>

</apex:pageBlockSection>

</apex:pageBlock>

</apex:form>

</apex:page>

Page 3 of 3

<apex:page controller="newDonationController"

tabStyle="Opportunity">

<apex:sectionHeader title="NewCustomerOpportunity"

subtitle="Step3of3"/>

<apex:form>

<apex:pageBlock title="Confirmation">

<apex:facet name="footer">

<apex:outputPanel >

<apex:commandButton action="{!step2}"

value="Previous"styleClass="btn"/>

<apex:commandButton action="{!save}"

value="Save"styleClass="btn"/>

</apex:outputPanel>

</apex:facet>

<apex:pageBlockSection title="Account Information">

<apex:panelGrid columns="2">

<apex:outputText value="Account Name:"/>

<apex:outputText value="{!account.name}"/>

</apex:panelGrid>

</apex:pageBlockSection>

<apex:pageBlockSection title="Contact Information">

<apex:panelGrid columns="2">

<apex:outputText value="First Name:"/>

<apex:outputText value="{!contact.firstName}"/>

<apex:outputText value="Last Name:"/>

<apex:outputText value="{!contact.lastName}"/>

<apex:outputText value="Phone:"/>

<apex:outputText value="{!contact.phone}"/>

<apex:outputText value="Email:"/>

<apex:outputText value="{!contact.email}"/>

<apex:outputText value="Role"/>

<apex:outputText value="{!role.role}"/>

</apex:panelGrid>

</apex:pageBlockSection>

<apex:pageBlockSection title="Donation Information">

<apex:panelGrid columns="2">

<apex:outputText value="Donation Name:"/>

<apex:outputText value="{!opportunity.name}"/>

<apex:outputText value="Amount:"/>

<apex:outputText value="{!opportunity.amount}"/>

<apex:outputText value="Type:"/>

<apex:outputText value="{!opportunity.type}"/>

<apex:outputText value="Close Date:"/>

<apex:outputText value="{!opportunity.closeDate}"/>

<apex:outputText value="Stage:"/>

<apex:outputText value="{!opportunity.stagename}"/>

<apex:outputText value="Payment Type:"/>

<apex:outputText value="{!opportunity.NFG__Payment_Type__c}"/>

<apex:outputText value="Check Date:"/>

<apex:outputText value="{!opportunity.Check_Date__c}"/>

<apex:outputText value="Check #:"/>

<apex:outputText value="{!opportunity.Check_Number__c}"/>

<apex:outputText value="Check Deposit Date:"/>

<apex:outputText value="{!opportunity.Bank_Deposit_Date__c}"/>

<apex:outputText value="Primary Campaign:"/>

<apex:outputText value="{!opportunity.campaignid}"/>

<apex:outputText value="Internet Source:"/>

<apex:outputText value="{!opportunity.NFG__Internet_Donation_Source__c}"/>

<apex:outputText value="Program Designation:"/>

<apex:outputText value="{!opportunity.Program_Designation__c}"/>

</apex:panelGrid>

</apex:pageBlockSection>

</apex:pageBlock>

</apex:form>

</apex:page>

public class newDonationController {

Account account;

Contact contact;

Opportunity opportunity;

OpportunityContactRole role;

Campaign campaign;

public Account getAccount() {

if(account == null)

return account;

}

public Contact getContact() {

if(contact == null) contact = new Contact();

return contact;

}

public Opportunity getOpportunity() {

if(opportunity == null) opportunity = new Opportunity();

return opportunity;

}

public OpportunityContactRole getRole() {

if(role == null) role = new OpportunityContactRole();

return role;

}

public PageReference step1() {

return Page.DonationStep1;

}

public PageReference step2() {

return Page.DonationStep2;

}

public PageReference step3() {

return Page.DonationStep3;

}

public PageReference save() {

account.phone = contact.phone;

account.NFG__Email__c = contact.email;

insert account;

contact.accountId = account.id;

insert contact;

opportunity.accountId = account.id;

insert opportunity;

role.opportunityId = opportunity.id;

role.contactId = contact.id;

insert role;

PageReference donationPage = new PageReference('/' + opportunity.id);

donationPage.setRedirect(true);return donationPage;

}

}