I'm playing around with my Spring '12 sandbox, trying out the UserRecordAccess object. First my scenario: I want to allow all users who can edit a contact record be able to delete the record, regardless of who owns it. I've created a custom button that executes my code using a web service. This all works fine in the UI, but my tests fail because when it tries to query the UserRecordAccess, no records are returned. I get a "System.QueryException: List has no rows for assignment to SObject"

I've also tried running the SOQL in the developer console and I get an internal Salesforce error, so I think something must be up.

Here's my code with test class:

global without sharing class ContactUtil {
    webService static String deleteContact(Id id) { 
        Contact c = new Contact(id = id);
        try {
            UserRecordAccess ura = [select RecordId, HasEditAccess from UserRecordAccess where UserId = :UserInfo.getUserId() and RecordId = :id];
            if (ura.HasEditAccess) 
                delete c;
            else 
                throw new deleteException('Error deleting');
            return '';
        } catch (Exception e) {
            return e.getMessage();
        }
    }
    
    @isTest
    static void testDeleteContact() {
        Contact c = new Contact(LastName = 'Test');
        insert c;
        User u = [select id from user where Profile.Name = 'PA Customer Sales and Support' and IsActive = true  limit 1];
        System.runAs(u) {
              deleteContact(c.Id);
        }
        
        //Make sure the contact was deleted
        Contact[] testContact = [select Id from Contact where Id = :c.Id];
        System.assert(testContact.isEmpty());
    }
    
    public class deleteException extends Exception {}
}