use smarty markdown extension for dashes, ellipses

tests/test_factory.py

@@ -23,20 +23,24 @@ def test_markdown_meta_extension_always():
     assert b'<title>Index - incorporeal.org</title>' in response.data
 
 
-def test_extra_markdown_extensions_work():
-    """Test we can load more extensions via config, and that they work."""
+def test_custom_markdown_extensions_work():
+    """Test we can change extensions via config, and that they work.
+
+    This used to test smarty, but that's added by default now, so we test
+    that it can be removed by overriding the option.
+    """
     app = create_app(instance_path=os.path.join(HERE, 'instance'))
     client = app.test_client()
     response = client.get('/mdash-or-triple-dash')
     assert response.status_code == 200
-    assert b'word --- word' in response.data
+    assert b'word &mdash; word' in response.data
 
     app = create_app(instance_path=os.path.join(HERE, 'instance'),
-                     test_config={'MARKDOWN_EXTENSIONS': ['smarty']})
+                     test_config={'MARKDOWN_EXTENSIONS': []})
     client = app.test_client()
     response = client.get('/mdash-or-triple-dash')
     assert response.status_code == 200
-    assert b'word &mdash; word' in response.data
+    assert b'word --- word' in response.data
 
 
 def test_title_override():