MNT: Add doctest and coverage pragma

Author: effigies

nibabel/casting.py

@@ -467,6 +467,11 @@ def int_to_float(val, flt_type):
     -------
     f : numpy scalar
         of type `flt_type`
+
+    Examples
+    --------
+    >>> int_to_float(1, np.float32)
+    1.0
     """
     return flt_type(val)
 

nibabel/conftest.py

@@ -24,7 +24,7 @@ def max_digits():
         orig_max_str_digits = sys.get_int_max_str_digits()
         yield sys.set_int_max_str_digits
         sys.set_int_max_str_digits(orig_max_str_digits)
-    except AttributeError:
+    except AttributeError:  # pragma: no cover
         # Nothing to do for versions of Python that lack these methods
         # They were added as DoS protection in Python 3.11 and backported to
         # some other versions.