previous test was filtering to one user

this updates it to test the size parameter works

cc @mtodd @randx

Author: Jerry Cheung

test/integration/test_search.rb

@@ -66,12 +66,12 @@ def test_search_timeout
   def test_search_with_size
     entries = []
 
-    result = @ldap.search(filter: "(uid=user1)", base: "dc=rubyldap,dc=com", size: 1) do |entry|
+    result = @ldap.search(base: "dc=rubyldap,dc=com", size: 1) do |entry|
       assert_kind_of Net::LDAP::Entry, entry
       entries << entry
     end
 
-    refute entries.empty?
+    assert_equal 1, result.size
     assert_equal entries, result
   end
 end