build(deps-dev): bump frequenz-repo-config from 0.18.0 to 0.19.0 in the repo-config group across 1 directory

CONTRIBUTING.md

@@ -53,7 +53,7 @@ Or you can use `nox`:
 nox -R -s pytest -- tests/test_*.py
 ```
 
-The same appliest to `pylint` or `mypy` for example:
+The same applies to `pylint` or `mypy` for example:
 
 ```sh
 nox -R -s pylint -- tests/test_*.py
@@ -121,12 +121,19 @@ These are the steps to create a new release:
 
 1. Get the latest head you want to create a release from.
 
+   If you use milestones, check that the milestone for this release has no open
+   issues left, and move whatever won't make it to a later milestone.
+
 2. Update the `RELEASE_NOTES.md` file if it is not complete, up to date, and
-   remove template comments (`<!-- ... ->`) and empty sections. Submit a pull
+   remove template comments (`<!-- ... -->`) and empty sections. Submit a pull
    request if an update is needed, wait until it is merged, and update the
    latest head you want to create a release from to get the new merged pull
    request.
 
+   This can't be left for later: the notes published with the release are read
+   from the `RELEASE_NOTES.md` committed at the tagged commit, not from the tag
+   message.
+
 3. Create a new signed tag using the release notes and
    a [semver](https://semver.org/) compatible version number with a `v` prefix,
    for example:
@@ -135,6 +142,10 @@ These are the steps to create a new release:
    git tag -s --cleanup=whitespace -F RELEASE_NOTES.md v0.0.1
    ```
 
+   The signature is not optional: the *Protect released tags* ruleset rejects
+   unsigned tags. It also forbids updating or deleting a released tag, so make
+   sure you are tagging the commit you want.
+
 4. Push the new tag.
 
 5. A GitHub action will test the tag and if all goes well it will create
@@ -153,4 +164,7 @@ These are the steps to create a new release:
    Commit the new release notes and create a PR (this step should be automated
    eventually too).
 
-7. Celebrate!
+7. If you use milestones, close the milestone for this release, and create the
+   next one if it doesn't exist yet.
+
+8. Celebrate!

pyproject.toml

@@ -5,7 +5,7 @@
 requires = [
   "setuptools == 84.0.0",
   "setuptools_scm[toml] == 10.2.1",
-  "frequenz-repo-config[lib] == 0.18.0",
+  "frequenz-repo-config[lib] == 0.19.0",
 ]
 build-backend = "setuptools.build_meta"
 
@@ -72,7 +72,7 @@ dev-mkdocs = [
   "mkdocs-material == 9.7.7",
   "mkdocstrings[python] == 1.0.6",
   "mkdocstrings-python == 2.0.7",
-  "frequenz-repo-config[lib] == 0.18.0",
+  "frequenz-repo-config[lib] == 0.19.0",
 ]
 dev-mypy = [
   "mypy == 2.3.1",
@@ -82,15 +82,15 @@ dev-mypy = [
   # For checking the noxfile, docs/ script, and tests
   "frequenz-client-microgrid[dev-mkdocs,dev-noxfile,dev-pytest]",
 ]
-dev-noxfile = ["nox == 2026.8.17", "frequenz-repo-config[lib] == 0.18.0"]
+dev-noxfile = ["nox == 2026.8.17", "frequenz-repo-config[lib] == 0.19.0"]
 dev-pylint = [
   "pylint == 4.0.7",
   # For checking the noxfile, docs/ script, and tests
   "frequenz-client-microgrid[dev-mkdocs,dev-noxfile,dev-pytest]",
 ]
 dev-pytest = [
   "pytest == 9.1.1",
-  "frequenz-repo-config[extra-lint-examples] == 0.18.0",
+  "frequenz-repo-config[extra-lint-examples] == 0.19.0",
   "pytest-mock == 3.15.1",
   "pytest-asyncio == 1.4.0",
   "async-solipsism == 0.9",
@@ -168,7 +168,6 @@ disable = [
 ]
 
 [tool.pytest.ini_options]
-addopts = "-vv"
 filterwarnings = [
   "error",
   "once::DeprecationWarning",
@@ -178,11 +177,13 @@ filterwarnings = [
   'ignore:Protobuf gencode version .*exactly one major version older.*:UserWarning',
 ]
 testpaths = ["tests", "src"]
+asyncio_debug = true
 asyncio_mode = "auto"
 asyncio_default_fixture_loop_scope = "function"
 required_plugins = ["pytest-asyncio", "pytest-mock"]
 
 [tool.mypy]
+enable_error_code = ["exhaustive-match"]
 explicit_package_bases = true
 namespace_packages = true
 # This option disables mypy cache, and it is sometimes useful to enable it if

src/frequenz/client/microgrid/component/_component_proto.py

@@ -557,6 +557,8 @@ def _metric_config_bounds_from_proto(
                 minor_issues.append(
                     f"metric_config_bounds has an unrecognized metric {metric}"
                 )
+            case _:
+                pass
 
         if not metric_bound.HasField("config_bounds"):
             major_issues.append(

src/frequenz/client/microgrid/metrics/_sample_proto.py

@@ -4,6 +4,7 @@
 """Loading of MetricSample and AggregatedMetricValue objects from protobuf messages."""
 
 from collections.abc import Sequence
+from typing import assert_never
 
 from frequenz.api.common.v1alpha8.metrics import bounds_pb2, metrics_pb2
 from frequenz.client.base import conversion
@@ -59,6 +60,10 @@ def metric_sample_from_proto_with_issues(
                 value = aggregated_metric_sample_from_proto(
                     message.value.aggregated_metric
                 )
+            case None:
+                pass
+            case unexpected:
+                assert_never(unexpected)
 
     metric = enum_from_proto(message.metric, Metric)
 

tests/metrics/test_sample.py

@@ -449,3 +449,30 @@ def test_metric_sample_from_proto_with_issues(
     assert sample == case.expected_sample
     assert major_issues == case.expected_major_issues
     assert minor_issues == case.expected_minor_issues
+
+
+def test_metric_sample_from_proto_with_unknown_value_variant() -> None:
+    """Test that an unknown future oneof member is converted to no value."""
+    value = metrics_pb2.MetricValueVariant()
+    # Field 3 represents a hypothetical future oneof member.
+    value.ParseFromString(b"\x1a\x00")
+    message = metrics_pb2.MetricSample(
+        sample_time=TIMESTAMP,
+        metric=Metric.AC_POWER_ACTIVE.value,
+        value=value,
+        bounds=[bounds_pb2.Bounds(lower=-10.0, upper=10.0)],
+    )
+
+    major_issues: list[str] = []
+    minor_issues: list[str] = []
+
+    sample = metric_sample_from_proto_with_issues(
+        message,
+        major_issues=major_issues,
+        minor_issues=minor_issues,
+    )
+
+    assert sample.value is None
+    assert sample.bounds == [Bounds(lower=-10.0, upper=10.0)]
+    assert major_issues == []
+    assert minor_issues == []