Moving the "dependency injection printer tools" over to tools/common.py

mediagoblin/tests/test_sql_migrations.py

@@ -27,6 +27,7 @@ from migrate import changeset
 
 from mediagoblin.db.sql.base import GMGTableBase
 from mediagoblin.db.sql.util import MigrationManager, RegisterMigration
+from mediagoblin.tools.common import CollectingPrinter
 
 
 # This one will get filled with local migrations
@@ -520,18 +521,6 @@ def _insert_migration3_objects(session):
     session.commit()
 
 
-class CollectingPrinter(object):
-    def __init__(self):
-        self.collection = []
-    
-    def __call__(self, string):
-        self.collection.append(string)
-
-    @property
-    def combined_string(self):
-        return u''.join(self.collection)
-
-
 def create_test_engine():
     from sqlalchemy import create_engine
     engine = create_engine('sqlite:///:memory:', echo=False)