From fcc71031c31081705ef4a751e9043452cbea8368 Mon Sep 17 00:00:00 2001
From: Frederik Hennig <frederik.hennig@fau.de>
Date: Mon, 22 Jul 2024 13:04:39 +0200
Subject: [PATCH] Fix unclosed matplotlib figures:
- Notebook tests used to leave their figures open, which increases memory consumption; also, auto-closing before backend change is now deprecated in matplotlib.
---
conftest.py | 8 +++++++-
1 file changed, 7 insertions(+), 1 deletion(-)
diff --git a/conftest.py b/conftest.py
index 5ae7aacb..c989bd81 100644
--- a/conftest.py
+++ b/conftest.py
@@ -111,14 +111,20 @@ class IPyNbTest(pytest.Item):
# in notebooks there is an implicit plt.show() - if this is not called a warning is shown when the next
# plot is created. This warning is suppressed here
+ # Also animations cannot be shown, which also leads to a warning.
exec("import warnings;"
- "warnings.filterwarnings('ignore', 'Adding an axes using the same arguments as a previous.*');",
+ "warnings.filterwarnings('ignore', 'Adding an axes using the same arguments as a previous.*');"
+ "warnings.filterwarnings('ignore', 'Animation was deleted without rendering anything.*');",
global_dict)
with tempfile.NamedTemporaryFile() as f:
f.write(self.code.encode())
f.flush()
runpy.run_path(f.name, init_globals=global_dict, run_name=self.name)
+ # Close any open figures
+ exec("import matplotlib.pyplot as p; "
+ "p.close('all')", global_dict)
+
class IPyNbFile(pytest.File):
def collect(self):
--
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