Fix tests that need dummy comm & update yarn.lock.

packages/controls/package.json

@@ -34,7 +34,7 @@
     "test:unit:ie": "npm run test:unit:default -- --browsers=IE"
   },
   "dependencies": {
-    "@jupyter-widgets/base": "^6.0.7",
+    "@jupyter-widgets/base": "^6.0.8",
     "@lumino/algorithm": "^1.9.2 || ^2.0.1",
     "@lumino/domutils": "^1.8.1 || ^2.1",
     "@lumino/messaging": "^1.10.1 || ^2.0.1",

python/ipywidgets/ipywidgets/widgets/tests/test_send_state.py

@@ -3,12 +3,14 @@
 
 from traitlets import Bool, Tuple, List
 
-from .utils import setup, teardown, DummyComm
+
+from .utils import dummy_comm_fixture
 
 from ..widget import Widget
 
 from ..._version import __control_protocol_version__
 
+
 # A widget with simple traits
 class SimpleWidget(Widget):
     a = Bool().tag(sync=True)
@@ -18,13 +20,13 @@ class SimpleWidget(Widget):
     c = List(Bool()).tag(sync=True)
 
 
-def test_empty_send_state():
+def test_empty_send_state(dummy_comm_fixture):
     w = SimpleWidget()
     w.send_state([])
     assert w.comm.messages == []
 
 
-def test_empty_hold_sync():
+def test_empty_hold_sync(dummy_comm_fixture):
     w = SimpleWidget()
     with w.hold_sync():
         pass

python/ipywidgets/ipywidgets/widgets/tests/test_set_state.py

@@ -6,7 +6,7 @@
 
 from traitlets import Bool, Tuple, List, Instance, CFloat, CInt, Float, Int, TraitError, observe
 
-from .utils import setup, teardown
+from .utils import dummy_comm_fixture  # noqa: F401
 
 import ipywidgets
 from ipywidgets import Widget
@@ -81,7 +81,7 @@ class TruncateDataWidget(SimpleWidget):
 # Actual tests:
 #
 
-def test_set_state_simple(echo):
+def test_set_state_simple(echo, dummy_comm_fixture):
     w = SimpleWidget()
     w.set_state(dict(
         a=True,
@@ -92,7 +92,7 @@ def test_set_state_simple(echo):
     assert len(w.comm.messages) == (1 if echo else 0)
 
 
-def test_set_state_transformer(echo):
+def test_set_state_transformer(echo, dummy_comm_fixture):
     w = TransformerWidget()
     w.set_state(dict(
         d=[True, False, True]
@@ -119,7 +119,7 @@ def test_set_state_transformer(echo):
     assert w.comm.messages == expected
 
 
-def test_set_state_data(echo):
+def test_set_state_data(echo, dummy_comm_fixture):
     w = DataWidget()
     data = memoryview(b'x'*30)
     w.set_state(dict(
@@ -129,7 +129,7 @@ def test_set_state_data(echo):
     assert len(w.comm.messages) == (1 if echo else 0)
 
 
-def test_set_state_data_truncate(echo):
+def test_set_state_data_truncate(echo, dummy_comm_fixture):
     w = TruncateDataWidget()
     data = memoryview(b'x'*30)
     w.set_state(dict(
@@ -153,7 +153,7 @@ def test_set_state_data_truncate(echo):
     assert buffers[0] == data[:20].tobytes()
 
 
-def test_set_state_numbers_int(echo):
+def test_set_state_numbers_int(echo, dummy_comm_fixture):
     # JS does not differentiate between float/int.
     # Instead, it formats exact floats as ints in JSON (1.0 -> '1').
 
@@ -169,7 +169,7 @@ def test_set_state_numbers_int(echo):
     assert len(w.comm.messages) == (1 if echo else 0)
 
 
-def test_set_state_numbers_float(echo):
+def test_set_state_numbers_float(echo, dummy_comm_fixture):
     w = NumberWidget()
     # Set floats to int-like floats
     w.set_state(dict(
@@ -181,7 +181,7 @@ def test_set_state_numbers_float(echo):
     assert len(w.comm.messages) == (1 if echo else 0)
 
 
-def test_set_state_float_to_float(echo):
+def test_set_state_float_to_float(echo, dummy_comm_fixture):
     w = NumberWidget()
     # Set floats to float
     w.set_state(dict(
@@ -192,7 +192,7 @@ def test_set_state_float_to_float(echo):
     assert len(w.comm.messages) == (1 if echo else 0)
 
 
-def test_set_state_cint_to_float(echo):
+def test_set_state_cint_to_float(echo, dummy_comm_fixture):
     w = NumberWidget()
 
     # Set CInt to float
@@ -223,7 +223,7 @@ def _x_test_set_state_int_to_int_like():
     assert len(w.comm.messages) == 0
 
 
-def test_set_state_int_to_float(echo):
+def test_set_state_int_to_float(echo, dummy_comm_fixture):
     w = NumberWidget()
 
     # Set Int to float
@@ -232,7 +232,7 @@ def test_set_state_int_to_float(echo):
             i = 3.5
         ))
 
-def test_property_lock(echo):
+def test_property_lock(echo, dummy_comm_fixture):
     # when this widget's value is set to 42, it sets itself to 2, and then back to 42 again (and then stops)
     class AnnoyingWidget(Widget):
         value = Float().tag(sync=True)
@@ -262,7 +262,7 @@ def _propagate_value(self, change):
     calls = []
     widget._send.assert_has_calls(calls)
 
-def test_hold_sync(echo):
+def test_hold_sync(echo, dummy_comm_fixture):
     # when this widget's value is set to 42, it sets the value to 2, and also sets a different trait value
     class AnnoyingWidget(Widget):
         value = Float().tag(sync=True)
@@ -298,7 +298,7 @@ def _propagate_value(self, change):
 
 
 
-def test_echo():
+def test_echo(dummy_comm_fixture):
     # we always echo values back to the frontend
     class ValueWidget(Widget):
         value = Float().tag(sync=True)
@@ -319,7 +319,7 @@ class ValueWidget(Widget):
     widget._send.assert_has_calls(calls)
 
 
-def test_echo_single():
+def test_echo_single(dummy_comm_fixture):
     # we always echo multiple changes back in 1 update
     class ValueWidget(Widget):
         value = Float().tag(sync=True)
@@ -359,7 +359,7 @@ def _square(self, change):
     widget._send.assert_has_calls(calls)
 
 
-def test_no_echo(echo):
+def test_no_echo(dummy_comm_fixture):
     # in cases where values coming from the frontend are 'heavy', we might want to opt out
     class ValueWidget(Widget):
         value = Float().tag(sync=True, echo_update=False)

python/ipywidgets/ipywidgets/widgets/tests/utils.py

@@ -1,6 +1,8 @@
 # Copyright (c) Jupyter Development Team.
 # Distributed under the terms of the Modified BSD License.
 
+import pytest
+
 from ipywidgets import Widget
 import ipywidgets.widgets.widget
 
@@ -95,3 +97,12 @@ def teardown():
 
 def call_method(method, *args, **kwargs):
     method(*args, **kwargs)
+
+
+@pytest.fixture
+def dummy_comm_fixture():
+    setup()
+    try:
+        yield
+    finally:
+        teardown()

yarn.lock

@@ -732,11 +732,11 @@ __metadata:
   languageName: node
   linkType: hard
 
-"@jupyter-widgets/base-manager@^1.0.8, @jupyter-widgets/base-manager@workspace:packages/base-manager":
+"@jupyter-widgets/base-manager@^1.0.9, @jupyter-widgets/base-manager@workspace:packages/base-manager":
   version: 0.0.0-use.local
   resolution: "@jupyter-widgets/base-manager@workspace:packages/base-manager"
   dependencies:
-    "@jupyter-widgets/base": ^6.0.7
+    "@jupyter-widgets/base": ^6.0.8
     "@jupyterlab/services": ^6.0.0 || ^7.0.0
     "@lumino/coreutils": ^1.11.1 || ^2
     "@types/base64-js": ^1.2.5
@@ -770,7 +770,7 @@ __metadata:
   languageName: unknown
   linkType: soft
 
-"@jupyter-widgets/base@^6.0.7, @jupyter-widgets/base@workspace:packages/base":
+"@jupyter-widgets/base@^6.0.8, @jupyter-widgets/base@workspace:packages/base":
   version: 0.0.0-use.local
   resolution: "@jupyter-widgets/base@workspace:packages/base"
   dependencies:
@@ -812,11 +812,11 @@ __metadata:
   languageName: unknown
   linkType: soft
 
-"@jupyter-widgets/controls@^5.0.8, @jupyter-widgets/controls@workspace:packages/controls":
+"@jupyter-widgets/controls@^5.0.9, @jupyter-widgets/controls@workspace:packages/controls":
   version: 0.0.0-use.local
   resolution: "@jupyter-widgets/controls@workspace:packages/controls"
   dependencies:
-    "@jupyter-widgets/base": ^6.0.7
+    "@jupyter-widgets/base": ^6.0.8
     "@jupyterlab/services": ^6.0.0 || ^7.0.0
     "@lumino/algorithm": ^1.9.2 || ^2.0.1
     "@lumino/domutils": ^1.8.1 || ^2.1
@@ -866,9 +866,9 @@ __metadata:
   version: 0.0.0-use.local
   resolution: "@jupyter-widgets/example-web1@workspace:examples/web1"
   dependencies:
-    "@jupyter-widgets/base": ^6.0.7
-    "@jupyter-widgets/base-manager": ^1.0.8
-    "@jupyter-widgets/controls": ^5.0.8
+    "@jupyter-widgets/base": ^6.0.8
+    "@jupyter-widgets/base-manager": ^1.0.9
+    "@jupyter-widgets/controls": ^5.0.9
     chai: ^4.0.0
     css-loader: ^6.5.1
     karma: ^6.3.3
@@ -887,9 +887,9 @@ __metadata:
   version: 0.0.0-use.local
   resolution: "@jupyter-widgets/example-web2@workspace:examples/web2"
   dependencies:
-    "@jupyter-widgets/base": ^6.0.7
-    "@jupyter-widgets/base-manager": ^1.0.8
-    "@jupyter-widgets/controls": ^5.0.8
+    "@jupyter-widgets/base": ^6.0.8
+    "@jupyter-widgets/base-manager": ^1.0.9
+    "@jupyter-widgets/controls": ^5.0.9
     codemirror: ^5.48.0
     css-loader: ^6.5.1
     font-awesome: ^4.7.0
@@ -902,9 +902,9 @@ __metadata:
   version: 0.0.0-use.local
   resolution: "@jupyter-widgets/example-web3@workspace:examples/web3"
   dependencies:
-    "@jupyter-widgets/base": ^6.0.7
-    "@jupyter-widgets/controls": ^5.0.8
-    "@jupyter-widgets/html-manager": ^1.0.10
+    "@jupyter-widgets/base": ^6.0.8
+    "@jupyter-widgets/controls": ^5.0.9
+    "@jupyter-widgets/html-manager": ^1.0.11
     "@jupyterlab/services": ^6.0.0 || ^7.0.0
     "@types/codemirror": ^5.60.0
     "@types/node": ^17.0.2
@@ -924,24 +924,24 @@ __metadata:
   version: 0.0.0-use.local
   resolution: "@jupyter-widgets/example-web4@workspace:examples/web4"
   dependencies:
-    "@jupyter-widgets/html-manager": ^1.0.10
+    "@jupyter-widgets/html-manager": ^1.0.11
     css-loader: ^6.5.1
     font-awesome: ^4.7.0
     style-loader: ^3.3.1
     webpack: ^5.65.0
   languageName: unknown
   linkType: soft
 
-"@jupyter-widgets/html-manager@^1.0.10, @jupyter-widgets/html-manager@workspace:packages/html-manager":
+"@jupyter-widgets/html-manager@^1.0.11, @jupyter-widgets/html-manager@workspace:packages/html-manager":
   version: 0.0.0-use.local
   resolution: "@jupyter-widgets/html-manager@workspace:packages/html-manager"
   dependencies:
     "@fortawesome/fontawesome-free": ^5.12.0
-    "@jupyter-widgets/base": ^6.0.7
-    "@jupyter-widgets/base-manager": ^1.0.8
-    "@jupyter-widgets/controls": ^5.0.8
-    "@jupyter-widgets/output": ^6.0.7
-    "@jupyter-widgets/schema": ^0.5.4
+    "@jupyter-widgets/base": ^6.0.8
+    "@jupyter-widgets/base-manager": ^1.0.9
+    "@jupyter-widgets/controls": ^5.0.9
+    "@jupyter-widgets/output": ^6.0.8
+    "@jupyter-widgets/schema": ^0.5.5
     "@jupyterlab/outputarea": ^3.0.0 || ^4.0.0
     "@jupyterlab/rendermime": ^3.0.0 || ^4.0.0
     "@jupyterlab/rendermime-interfaces": ^3.0.0 || ^4.0.0
@@ -978,10 +978,10 @@ __metadata:
   version: 0.0.0-use.local
   resolution: "@jupyter-widgets/jupyterlab-manager@workspace:python/jupyterlab_widgets"
   dependencies:
-    "@jupyter-widgets/base": ^6.0.7
-    "@jupyter-widgets/base-manager": ^1.0.8
-    "@jupyter-widgets/controls": ^5.0.8
-    "@jupyter-widgets/output": ^6.0.7
+    "@jupyter-widgets/base": ^6.0.8
+    "@jupyter-widgets/base-manager": ^1.0.9
+    "@jupyter-widgets/controls": ^5.0.9
+    "@jupyter-widgets/output": ^6.0.8
     "@jupyterlab/application": ^3.0.0 || ^4.0.0
     "@jupyterlab/apputils": ^3.0.0 || ^4.0.0
     "@jupyterlab/builder": ^3.0.0 || ^4.0.0
@@ -1034,11 +1034,11 @@ __metadata:
   version: 0.0.0-use.local
   resolution: "@jupyter-widgets/notebook-manager@workspace:python/widgetsnbextension"
   dependencies:
-    "@jupyter-widgets/base": ^6.0.7
-    "@jupyter-widgets/base-manager": ^1.0.8
-    "@jupyter-widgets/controls": ^5.0.8
-    "@jupyter-widgets/html-manager": ^1.0.10
-    "@jupyter-widgets/output": ^6.0.7
+    "@jupyter-widgets/base": ^6.0.8
+    "@jupyter-widgets/base-manager": ^1.0.9
+    "@jupyter-widgets/controls": ^5.0.9
+    "@jupyter-widgets/html-manager": ^1.0.11
+    "@jupyter-widgets/output": ^6.0.8
     "@jupyterlab/services": ^6.0.0 || ^7.0.0
     "@lumino/messaging": ^1.10.1 || ^2.0.1
     "@lumino/widgets": ^1.30.0 || ^2.1
@@ -1052,17 +1052,17 @@ __metadata:
   languageName: unknown
   linkType: soft
 
-"@jupyter-widgets/output@^6.0.7, @jupyter-widgets/output@workspace:packages/output":
+"@jupyter-widgets/output@^6.0.8, @jupyter-widgets/output@workspace:packages/output":
   version: 0.0.0-use.local
   resolution: "@jupyter-widgets/output@workspace:packages/output"
   dependencies:
-    "@jupyter-widgets/base": ^6.0.7
+    "@jupyter-widgets/base": ^6.0.8
     rimraf: ^3.0.2
     typescript: ~4.9.4
   languageName: unknown
   linkType: soft
 
-"@jupyter-widgets/schema@^0.5.4, @jupyter-widgets/schema@workspace:packages/schema":
+"@jupyter-widgets/schema@^0.5.5, @jupyter-widgets/schema@workspace:packages/schema":
   version: 0.0.0-use.local
   resolution: "@jupyter-widgets/schema@workspace:packages/schema"
   languageName: unknown