test: a debug helper to show made-file contents

1 files changed, 7 insertions, 0 deletions

diff --git a/tests/helpers.py b/tests/helpers.py
index 82d8b18f..29464d1c 100644
--- a/tests/helpers.py
+++ b/tests/helpers.py
@@ -87,6 +87,13 @@ def make_file(filename, text="", bytes=b"", newline=None):
     with open(filename, 'wb') as f:
         f.write(data)
 
+    # For debugging, enable this to show the contents of files created.
+    if 0:       # pragma: debugging
+        print(f"   ───┬──┤ {filename} ├───────────────────────")
+        for lineno, line in enumerate(data.splitlines(), start=1):
+            print(f"{lineno:6}│ {line.rstrip().decode()}")
+        print()
+
     return filename