Change: check for embedded files with non-unique names

This is ugly and panics, but that's acceptable for now. We'll clean
this up later.

1 files changed, 3 insertions, 0 deletions

diff --git a/subplot.py b/subplot.py
index 34c1968..bc972f8 100644
--- a/subplot.py
+++ b/subplot.py
@@ -49,6 +49,9 @@ def run_pandoc_with_filter(ctx, filename=None, output=None):
 def file_exists(ctx, filename=None):
     assert_eq(os.path.exists(filename), True)
 
+def file_does_not_exist(ctx, filename=None):
+    assert_eq(os.path.exists(filename), False)
+
 def file_matches(ctx, filename=None, regex=None):
     with open(filename) as f:
         content = f.read()