diff --git a/conftest.py b/inequality/tests/conftest.py
similarity index 59%
rename from conftest.py
rename to inequality/tests/conftest.py
index 94596dac..ec0d0e8c 100644
--- a/conftest.py
+++ b/inequality/tests/conftest.py
@@ -7,18 +7,15 @@
 
 def warning_depr(x):
     return pytest.warns(
-        FutureWarning,
-        match=f"{x} is deprecated and will be removed on 2025-01-01."
+        FutureWarning, match=f"{x} is deprecated and will be removed on 2025-01-01."
     )
 
 
 def warning_invalid(x):
-    return pytest.warns(RuntimeWarning,
-                        match=f"invalid value encountered in {x}")
+    return pytest.warns(RuntimeWarning, match=f"invalid value encountered in {x}")
 
 
-warning_div_zero = pytest.warns(RuntimeWarning,
-                                match="divide by zero encountered")
+warning_div_zero = pytest.warns(RuntimeWarning, match="divide by zero encountered")
 
 
 def pytest_configure():