Merge pull request #247 from lpsinger/warnings-as-errors

Treat warnings in unit tests as errors

astropy_healpix/utils.py

@@ -40,8 +40,9 @@ def parse_input_healpix_data(input_data, field=0, hdu_in=None, nested=None):
         if 'ORDERING' in header:
             nested = header['ORDERING'].lower() == 'nested'
     elif isinstance(input_data, str):
-        hdu = fits.open(input_data)[hdu_in or 1]
-        return parse_input_healpix_data(hdu, field=field)
+        with fits.open(input_data) as hdus:
+            hdu = hdus[hdu_in or 1]
+            return parse_input_healpix_data(hdu, field=field)
     elif isinstance(input_data, tuple) and isinstance(input_data[0], np.ndarray):
         array_in = input_data[0]
         coordinate_system_in = parse_coord_system(input_data[1])

pyproject.toml

@@ -9,3 +9,9 @@ build-backend = 'setuptools.build_meta'
 
 [tool.cibuildwheel]
 skip = "pp*"
+
+[tool.pytest.ini_options]
+filterwarnings = [
+    "error",
+    "ignore:numpy\\.ndarray size changed:RuntimeWarning",
+]