Bring coverage back up to 100% (#392)

* Drop `else` case

Since nothing is done in this case, we can just skip having it. So drop
this case.

* Assert `keepbits` is as expected

* Ignore `...` lines in `NDArrayLike` `Protocol`

* Correct keepbits assertion

* Revert change in `bitround`

* Include Martin's contribution in release notes

* Ignore missing codec from registry case

Co-authored-by: Josh Moore <[email protected]>

Author: jakirkham

docs/release.rst

@@ -58,6 +58,10 @@ Maintenance
 * Update ReadTheDocs.
   By :user:`John Kirkham <jakirkham>`, :issue:`383`.
 
+* Bring coverage back up to 100%.
+  By :user:`John Kirkham <jakirkham>` and :user:`Martin Durant <martindurant>`,
+  :issue:`392` and :issue:`393`.
+
 * Collect coverage on all OSes & enable Codecov.
   By :user:`John Kirkham <jakirkham>`, :issue:`386`, :issue:`388`,
   :issue:`390`, :issue:`391`.

numcodecs/ndarray_like.py

@@ -53,22 +53,22 @@ class NDArrayLike(Protocol, metaclass=_CachedProtocolMeta):
     flags: FlagsObj
 
     def __len__(self) -> int:
-        ...
+        ...    # pragma: no cover
 
     def __getitem__(self, key) -> Any:
-        ...
+        ...    # pragma: no cover
 
     def __setitem__(self, key, value):
-        ...
+        ...    # pragma: no cover
 
     def tobytes(self, order: Optional[str] = ...) -> bytes:
-        ...
+        ...    # pragma: no cover
 
     def reshape(self, *shape: int, order: str = ...) -> "NDArrayLike":
-        ...
+        ...    # pragma: no cover
 
     def view(self, dtype: DType = ...) -> "NDArrayLike":
-        ...
+        ...    # pragma: no cover
 
 
 def is_ndarray_like(obj: object) -> bool:

numcodecs/tests/test_registry.py

@@ -37,4 +37,4 @@ def test_all_classes_registered():
     # remove `None``
     missing.remove(None)
     if missing:
-        raise Exception(f"these codecs are missing: {missing}")
+        raise Exception(f"these codecs are missing: {missing}")  # pragma: no cover

numcodecs/zfpy.py

@@ -46,8 +46,6 @@ def __init__(
                 self.compression_kwargs = {"rate": rate}
             elif mode == _zfpy.mode_fixed_precision:
                 self.compression_kwargs = {"precision": precision}
-            else:
-                pass
 
             self.tolerance = tolerance
             self.rate = rate