fix errors not displaying when called via module

Signed-off-by: Matthew Peveler <matt.peveler@gmail.com>

1 files changed, 1 insertions, 0 deletions

diff --git a/tests/testasciidoc.py b/tests/testasciidoc.py
index 1379034..2aace85 100755
--- a/tests/testasciidoc.py
+++ b/tests/testasciidoc.py
@@ -398,6 +398,7 @@ class Lines(list):
 if __name__ == '__main__':
     # guarantee a stable timestamp matching the test fixtures
     os.environ['SOURCE_DATE_EPOCH'] = '1038184662'
+    asciidoc.set_caller(__name__)
     # Process command line options.
     from argparse import ArgumentParser
     parser = ArgumentParser(