add custom plugins tests

test/test_content/custom.control

@@ -0,0 +1 @@
+- "{'customname:': ''}"

test/test_content/custom.source

@@ -0,0 +1 @@
+- customname:

test/test_content/datadir/python/content/customplugin.py

@@ -0,0 +1,21 @@
+"""Fake plugin for test purposes."""
+
+from patacrep.content import ContentItem, ContentList, validate_parser_argument
+
+class FakeContent(ContentItem):
+    """Fake content."""
+
+    def render(self, __context):
+        return 'fakecontent'
+
+    def file_entry(self):
+        return {'customname:':''}
+
+#pylint: disable=unused-argument
+def parse(keyword, argument, config):
+    """
+    """
+    return ContentList([FakeContent()])
+
+CONTENT_PLUGINS = {'customname': parse}
+

test/test_content/test_content.py

@@ -93,7 +93,7 @@ class FileTest(unittest.TestCase, metaclass=dynamic.DynamicTest):
             return files.path2posix(elem.filename)
 
         else:
-            raise Exception(elem)
+            return str(elem.file_entry())
 
     @classmethod
     def _generate_config(cls, sbcontent, outputdir, base):