Need test class for this method

Question

I need test class for the method below:

This class is written for overriding the view..

public PageReference redirectGroup()
{
    if(Url.getSalesforceBaseUrl().toExternalForm()  == 'https://hello.cs20.force.com') // Checks for Community URL...
    {
        Id groupId = ApexPages.currentPage().getParameters().get('id');
        Id feedId = ApexPages.currentPage().getParameters().get('fid');
        if(feedId != null)
        {
            PageReference pg = new PageReference('/Community_FeedDetail');
            pg.getParameters().put('Id', groupId);
            pg.getParameters().put('fid', feedId);
            return pg;
        }
        else
        {
            PageReference pg = new PageReference('/Community_Groups_Feed');
            pg.getParameters().put('Id',groupId );
            return pg;
        }   
    }
    else
    {
       PageReference pg = new PageReference('/'+ApexPages.currentPage().getParameters().get('id')+'?nooverride=1');
       pg.setRedirect(true);
       return pg;
    }

}

Test class:

@isTest
private class ClearSightGroupRedirectExtensionTest{

    public ApexPages.StandardController stdController;
    public ClearSightGroupRedirectExtensionTest(ApexPages.StandardController con){
              stdController = con;
    }

    public static testMethod void testRedirect() {
         Contact c = new Contact();
         c.FirstName = 'Joe';
         c.LastName = 'Schmoe';
         Insert c;
         Test.startTest();
         ApexPAges.StandardController sc = new ApexPages.StandardController(c);
         ClearSightGroupRedirectExtension redirect = new ClearSightGroupRedirectExtension(sc);  
         PageReference pageRef = Page.Community_Groups_Feed;    
         Test.setCurrentPage(pageRef);
         redirect.redirectGroup();
    }
}

I get 45% coverage with that code, but need to check the condition for community url and want coverage with that block

Answer 1

Rather than setting the community URL directly in code (and to allow tests to pass), what I have done in the past

1. Create a custom setting to hold the URL string for the community
2. Check the salesforceBaseURL against the value in the custom setting.

Then in your test method you can:

1. Insert a custom setting value to the Url.getSalesforceBaseUrl().toExternalForm()

The downside is that you are going to have to use another custom setting value to flag it to test the negative use case or use a static variable to do the same.

Upside, you do not have to hard code the URL and can change it as needed without breaking your test or code.

Answer 2

Can you put Community URL in any class level public variable and then compare in your if statement. This will help you setting community URL from test class and you can move inside the if block.