From f43fa8bcb82cff19ca6e044cd2c460a31f86a5c0 Mon Sep 17 00:00:00 2001
From: Lars Wirzenius <liw@liw.fi>
Date: Thu, 18 Feb 2021 11:04:06 +0200
Subject: test: if output is not match, print diff

This makes it easier to debug failure in CI.
---
 subplot/summain.py | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/subplot/summain.py b/subplot/summain.py
index ca7c0f6..d01e441 100644
--- a/subplot/summain.py
+++ b/subplot/summain.py
@@ -66,4 +66,7 @@ def output_matches_file(ctx, filename=None):
     logging.debug(f"  actual:\n{actual}")
     logging.debug(f"  expect:\n{expected}")
     logging.debug(f"  diff:\n{diff}")
+    if actual != expected:
+        print("ERROR: diff:")
+        print(diff)
     assert_eq(actual, expected)
-- 
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