Enable DeprecationWarnings during tests

2 files changed, 18 insertions, 14 deletions

diff --git a/igor.py b/igor.py
index 15e385e7..2e8bab3d 100644
--- a/igor.py
+++ b/igor.py
@@ -22,20 +22,6 @@ import zipfile
 
 import pytest
 
-# We want to see all warnings while we are running tests.  But we also need to
-# disable warnings for some of the more complex setting up of tests.
-warnings.simplefilter("default")
-
-# Silence specific warnings that are not our fault.
-warnings.filterwarnings("ignore", module="xdist", message="type argument to addoption")
-warnings.filterwarnings("ignore", module="flaky", message="type argument to addoption")
-warnings.filterwarnings(
-    # https://github.com/pytest-dev/pytest/issues/2118
-    "ignore",
-    module="_pytest",
-    message="This usage is deprecated, please use pytest.* instead"
-)
-
 
 @contextlib.contextmanager
 def ignore_warnings():
diff --git a/tests/conftest.py b/tests/conftest.py
new file mode 100644
index 00000000..a0c21a84
--- /dev/null
+++ b/tests/conftest.py
@@ -0,0 +1,18 @@
+# Licensed under the Apache License: http://www.apache.org/licenses/LICENSE-2.0
+# For details: https://bitbucket.org/ned/coveragepy/src/default/NOTICE.txt
+
+"""
+Pytest auto configuration.
+
+This module is run automatically by pytest, to define and enable fixtures.
+"""
+
+import pytest
+import warnings
+
+
+@pytest.fixture(autouse=True)
+def set_warnings():
+    """Enable DeprecationWarnings during all tests."""
+    warnings.simplefilter("default")
+    warnings.simplefilter("once", DeprecationWarning)