updated logical test in _chk_events

CITATION.cff

@@ -29,6 +29,9 @@ authors:
 - given-names: "Aniket"
   family-names: "Pradhan"
   orcid: https://orcid.org/0000-0002-6705-5116
+- given-names: "Pierre"
+  family-names: "Cutellic"
+  orcid: "https://orcid.org/0000-0002-7224-9222"
 type: software
 repository-code: "https://github.com/bids-standard/pybv"
 url: "https://pybv.readthedocs.io/"

docs/changelog.rst

@@ -11,6 +11,7 @@ People who contributed to this software across releases (in **alphabetical order
 - `Chris Holdgraf`_
 - `Clemens Brunner`_
 - `Phillip Alday`_
+- `Pierre Cutellic`_
 - `Richard Höchenberger`_
 - `Stefan Appelhoff`_
 - `Tristan Stenner`_
@@ -23,6 +24,7 @@ People who contributed to this software across releases (in **alphabetical order
 .. _Richard Höchenberger: https://hoechenberger.net/
 .. _Adam Li: https://adam2392.github.io/
 .. _Aniket Pradhan: http://home.iiitd.edu.in/~aniket17133/
+.. _Pierre Cutellic: https://github.com/compmonks
 
 .. _changelog:
 
@@ -41,7 +43,7 @@ Here we list a changelog of pybv.
 
 Changelog
 ~~~~~~~~~
-- Nothing yet
+- Updated ``_chk_events`` to accept label values >= 0, by `Pierre Cutellic`_: (:gh:`95`)
 
 0.7.3 (2022-06-04)
 ==================

pybv/io.py

@@ -88,7 +88,7 @@ def write_brainvision(*, data, sfreq, ch_names,
             - ``"duration"`` : int
                 The duration of the event in samples (defaults to ``1``).
             - ``"description"`` : str | int
-                The description of the event. Must be a positive int when
+                The description of the event. Must be a non-negative int when
                 `type` (see below) is either ``"Stimulus"`` or ``"Response"``, and may
                 be a str when `type` is ``"Comment"``.
             - ``"type"`` : str
@@ -438,11 +438,11 @@ def _chk_events(events, ch_names, n_times):
         if event["type"] in ["Stimulus", "Response"]:
             if not isinstance(event["description"], int):
                 raise ValueError(f"events: when `type` is {event['type']}, "
-                                 "`description` must be positive int")
+                                 "`description` must be non-negative int")
 
-            if event["description"] < 1:
+            if event["description"] < 0:
                 raise ValueError(f"events: when `type` is {event['type']}, "
-                                 "descriptions must be positve ints.")
+                                 "descriptions must be non-negative ints.")
 
             # NOTE: We format 1 -> "S  1", 10 -> "S 10", 100 -> "S100", etc.,
             # https://github.com/bids-standard/pybv/issues/24#issuecomment-512746677

pybv/tests/test_bv_writer.py

@@ -87,9 +87,9 @@ def test_bv_writer_events_array(tmpdir, events_errormsg):
      ([{"onset": 100, "description": 1, "duration": 0}], "events: at least one duration is too short."),  # noqa: E501
      ([{"onset": 100, "description": 1, "duration": 4901}], "events: at least one event has a duration that exceeds"),  # noqa: E501
      ([{"onset": 1, "description": 2, "type": "bogus"}], "`type` must be one of"),  # noqa: E501
-     ([{"onset": 1, "description": "bogus"}], "when `type` is Stimulus, `description` must be positive int"),  # noqa: E501
+     ([{"onset": 1, "description": "bogus"}], "when `type` is Stimulus, `description` must be non-negative int"),  # noqa: E501
      ([{"onset": 1, "description": {}, "type": "Comment"}], "when `type` is Comment, `description` must be str or int"),  # noqa: E501
-     ([{"onset": 1, "description": -1}], "when `type` is Stimulus, descriptions must be positve ints."),  # noqa: E501
+     ([{"onset": 1, "description": -1}], "when `type` is Stimulus, descriptions must be non-negative ints."),  # noqa: E501
      ([{"onset": 1, "description": 1, "channels": "bogus"}], "found channel .* bogus"),
      ([{"onset": 1, "description": 1, "channels": ["ch_1", "ch_1"]}], "events: found duplicate channel names"),  # noqa: E501
      ([{"onset": 1, "description": 1, "channels": ["ch_1", "ch_2"]}], "warn___feature may not be supported"),  # noqa: E501