Update the test for the creating source feature to add arguments.

features/steps/creating_source_steps.py

@@ -12,6 +12,13 @@ def given_source_label(context, label):
 def given_source_path(context, source_path):
     context.source_path = source_path
 
+@given('the arguments "{arguments}"')
+def given_source_arguments(context, arguments):
+    context.args = arguments
+
+    if arguments == "<empty>":
+        context.args = ""
+
 @when('I add the source')
 def add_source(context):
     try:
@@ -19,7 +26,7 @@ def add_source(context):
             context.label,
             context.source_path,
             [],
-            "",
+            context.args,
         )
     except IntegrityError:
         context.exception_raised = True
@@ -32,4 +39,5 @@ def path_has_added(context):
 
     assert context.source.label  == context.label
     assert context.source.source.path == context.source_path
+    assert context.source.args.command == context.args