diff --git a/ckan/new_tests/logic/test_conversion.py b/ckan/new_tests/logic/test_conversion.py
index 8c892d5ea37..fad4c58da63 100644
--- a/ckan/new_tests/logic/test_conversion.py
+++ b/ckan/new_tests/logic/test_conversion.py
@@ -7,6 +7,8 @@
 import ckan.plugins as p
 import ckan.lib.plugins as lib_plugins
 from ckan.lib.navl.dictization_functions import validate
+from ckan.logic.schema import default_extras_schema
+from ckan.logic.converters import convert_to_extras
 
 
 eq_ = nose.tools.eq_
@@ -14,18 +16,9 @@
 
 class TestConvertToExtras(object):
 
-    @classmethod
-    def setup_class(cls):
-        p.load('example_idatasetform')
-
-    @classmethod
-    def teardown_class(cls):
-        p.unload('example_idatasetform')
-
     def test_convert_to_extras_field_gets_stored_as_extra(self):
 
         data_dict = {
-            'name': 'test-dataset',
             'custom_text': 'Hi',
         }
 
@@ -34,8 +27,10 @@ def test_convert_to_extras_field_gets_stored_as_extra(self):
             'session': model.Session,
         }
 
-        package_plugin = lib_plugins.lookup_package_plugin('dataset')
-        schema = package_plugin.create_package_schema()
+        schema = {
+            'custom_text': [convert_to_extras],
+            'extras': default_extras_schema(),
+        }
 
         data, errors = validate(data_dict, schema, context)
 
@@ -47,7 +42,6 @@ def test_convert_to_extras_field_gets_stored_as_extra(self):
     def test_convert_to_extras_field_can_be_combined_with_a_proper_extra(self):
 
         data_dict = {
-            'name': 'test-dataset',
             'custom_text': 'Hi',
             'extras': [
                 {'key': 'proper_extra', 'value': 'Bye'},
@@ -55,14 +49,16 @@ def test_convert_to_extras_field_can_be_combined_with_a_proper_extra(self):
             ]
         }
 
+        schema = {
+            'custom_text': [convert_to_extras],
+            'extras': default_extras_schema(),
+        }
+
         context = {
             'model': model,
             'session': model.Session,
         }
 
-        package_plugin = lib_plugins.lookup_package_plugin('dataset')
-        schema = package_plugin.create_package_schema()
-
         data, errors = validate(data_dict, schema, context)
 
         assert 'extras' in data
@@ -75,7 +71,6 @@ def test_convert_to_extras_field_can_be_combined_with_a_proper_extra(self):
     def test_convert_to_extras_field_can_be_combined_with_more_extras(self):
 
         data_dict = {
-            'name': 'test-dataset',
             'custom_text': 'Hi',
             'extras': [
                 {'key': 'proper_extra', 'value': 'Bye'},
@@ -83,14 +78,16 @@ def test_convert_to_extras_field_can_be_combined_with_more_extras(self):
             ]
         }
 
+        schema = {
+            'custom_text': [convert_to_extras],
+            'extras': default_extras_schema(),
+        }
+
         context = {
             'model': model,
             'session': model.Session,
         }
 
-        package_plugin = lib_plugins.lookup_package_plugin('dataset')
-        schema = package_plugin.create_package_schema()
-
         data, errors = validate(data_dict, schema, context)
 
         assert 'extras' in data
@@ -103,7 +100,6 @@ def test_convert_to_extras_field_can_be_combined_with_more_extras(self):
     def test_convert_to_extras_field_can_be_combined_with_extras_deleted(self):
 
         data_dict = {
-            'name': 'test-dataset',
             'custom_text': 'Hi',
             'extras': [
                 {'key': 'proper_extra', 'value': 'Bye', 'deleted': True},
@@ -111,14 +107,16 @@ def test_convert_to_extras_field_can_be_combined_with_extras_deleted(self):
             ]
         }
 
+        schema = {
+            'custom_text': [convert_to_extras],
+            'extras': default_extras_schema(),
+        }
+
         context = {
             'model': model,
             'session': model.Session,
         }
 
-        package_plugin = lib_plugins.lookup_package_plugin('dataset')
-        schema = package_plugin.create_package_schema()
-
         data, errors = validate(data_dict, schema, context)
 
         assert 'extras' in data
@@ -131,21 +129,22 @@ def test_convert_to_extras_field_can_be_combined_with_extras_deleted(self):
     def test_convert_to_extras_free_extra_can_not_have_the_same_key(self):
 
         data_dict = {
-            'name': 'test-dataset',
             'custom_text': 'Hi',
             'extras': [
                 {'key': 'custom_text', 'value': 'Bye'},
             ]
         }
 
+        schema = {
+            'custom_text': [convert_to_extras],
+            'extras': default_extras_schema(),
+        }
+
         context = {
             'model': model,
             'session': model.Session,
         }
 
-        package_plugin = lib_plugins.lookup_package_plugin('dataset')
-        schema = package_plugin.create_package_schema()
-
         data, errors = validate(data_dict, schema, context)
 
         assert 'extras' in errors