LCORE-1569,LCORE-1570: apply black formatting to new files

Whitespace-only reflow produced by `uv run make format` (black with
line length 88). Touches the four files added or extended in the
preceding 1569/1570 commits — the formatter prefers single-line
exception-construction calls and tighter argument layout where the
arguments fit under the line limit, which my hand-written layout
did not match.

No semantic change. Kept as one commit at the tip rather than
folded back into each per-ticket commit so the per-ticket diffs
remain reviewable on their own without an interleaved cosmetic
churn.

Author: max-svistunov

src/models/config.py

@@ -1522,19 +1522,15 @@ class CompactionConfiguration(ConfigurationBase):
     def _validate_threshold_ratio(cls, value: float) -> float:
         """Reject threshold ratios outside the inclusive 0..1 range."""
         if not 0.0 <= value <= 1.0:
-            raise ValueError(
-                "threshold_ratio must be between 0.0 and 1.0 (inclusive)"
-            )
+            raise ValueError("threshold_ratio must be between 0.0 and 1.0 (inclusive)")
         return value
 
     @field_validator("buffer_max_ratio")
     @classmethod
     def _validate_buffer_max_ratio(cls, value: float) -> float:
         """Reject buffer-max ratios outside the inclusive 0..1 range."""
         if not 0.0 <= value <= 1.0:
-            raise ValueError(
-                "buffer_max_ratio must be between 0.0 and 1.0 (inclusive)"
-            )
+            raise ValueError("buffer_max_ratio must be between 0.0 and 1.0 (inclusive)")
         return value
 
 

tests/unit/models/config/test_compaction_configuration.py

@@ -33,17 +33,13 @@ def test_threshold_ratio_accepts_boundary_values() -> None:
 
 def test_threshold_ratio_rejects_negative() -> None:
     """threshold_ratio below 0 is rejected."""
-    with pytest.raises(
-        ValueError, match="threshold_ratio must be between 0.0 and 1.0"
-    ):
+    with pytest.raises(ValueError, match="threshold_ratio must be between 0.0 and 1.0"):
         CompactionConfiguration(threshold_ratio=-0.1)
 
 
 def test_threshold_ratio_rejects_above_one() -> None:
     """threshold_ratio above 1 is rejected."""
-    with pytest.raises(
-        ValueError, match="threshold_ratio must be between 0.0 and 1.0"
-    ):
+    with pytest.raises(ValueError, match="threshold_ratio must be between 0.0 and 1.0"):
         CompactionConfiguration(threshold_ratio=1.1)
 
 

tests/unit/utils/test_compaction.py

@@ -23,7 +23,6 @@
     estimate_conversation_tokens,
 )
 
-
 # ---------------------------------------------------------------------------
 # Helpers
 # ---------------------------------------------------------------------------
@@ -62,9 +61,7 @@ def _make_history(num_pairs: int, words_per_message: int = 1) -> list[Any]:
     snippet = "alpha "
     for i in range(num_pairs):
         items.append(_MessageItem("user", (snippet * words_per_message) + str(i)))
-        items.append(
-            _MessageItem("assistant", (snippet * words_per_message) + f"A{i}")
-        )
+        items.append(_MessageItem("assistant", (snippet * words_per_message) + f"A{i}"))
     return items
 
 
@@ -442,9 +439,7 @@ async def test_invokes_responses_create_with_store_false(
         assert "user: hi" in kwargs["input"]
 
     @pytest.mark.asyncio
-    async def test_raises_when_llm_returns_empty(
-        self, mocker: MockerFixture
-    ) -> None:
+    async def test_raises_when_llm_returns_empty(self, mocker: MockerFixture) -> None:
         """An empty LLM response surfaces ValueError, not a silent empty summary."""
         client = mocker.AsyncMock()
         client.responses.create.return_value = _make_summary_response(mocker, "")
@@ -524,9 +519,7 @@ class TestRecursivelyResummarize:
     """Tests for the recursive-fold fallback."""
 
     @pytest.mark.asyncio
-    async def test_collapses_n_summaries_into_one(
-        self, mocker: MockerFixture
-    ) -> None:
+    async def test_collapses_n_summaries_into_one(self, mocker: MockerFixture) -> None:
         """Multiple summaries fold into one ConversationSummary."""
         client = mocker.AsyncMock()
         client.responses.create.return_value = _make_summary_response(
@@ -543,20 +536,15 @@ async def test_collapses_n_summaries_into_one(
             summaries=summaries,
             encoding_name=DEFAULT_ENCODING_NAME,
         )
-        assert (
-            folded.summary_text
-            == "Combined summary covering all prior chunks."
-        )
+        assert folded.summary_text == "Combined summary covering all prior chunks."
         # The fold inherits the most recent input's running total — no
         # new turns were summarized by this call.
         assert folded.summarized_through_turn == 15
         assert folded.token_count > 0
         assert folded.model_used == "openai/gpt-4o-mini"
 
     @pytest.mark.asyncio
-    async def test_prompt_lists_each_summary(
-        self, mocker: MockerFixture
-    ) -> None:
+    async def test_prompt_lists_each_summary(self, mocker: MockerFixture) -> None:
         """All input summary texts and the fallback prompt appear in the call."""
         client = mocker.AsyncMock()
         client.responses.create.return_value = _make_summary_response(
@@ -583,9 +571,7 @@ async def test_prompt_lists_each_summary(
     async def test_uses_store_false(self, mocker: MockerFixture) -> None:
         """The recursive call also uses store=False — like the additive one."""
         client = mocker.AsyncMock()
-        client.responses.create.return_value = _make_summary_response(
-            mocker, "Folded."
-        )
+        client.responses.create.return_value = _make_summary_response(mocker, "Folded.")
         summaries = [
             _make_summary("a", through=1),
             _make_summary("b", through=2),
@@ -601,9 +587,7 @@ async def test_uses_store_false(self, mocker: MockerFixture) -> None:
         assert kwargs["stream"] is False
 
     @pytest.mark.asyncio
-    async def test_raises_for_single_summary(
-        self, mocker: MockerFixture
-    ) -> None:
+    async def test_raises_for_single_summary(self, mocker: MockerFixture) -> None:
         """Folding a single summary is a no-op the caller must avoid."""
         client = mocker.AsyncMock()
         with pytest.raises(ValueError, match="at least 2 summary chunks"):
@@ -627,9 +611,7 @@ async def test_raises_for_empty_list(self, mocker: MockerFixture) -> None:
             )
 
     @pytest.mark.asyncio
-    async def test_raises_when_llm_returns_empty(
-        self, mocker: MockerFixture
-    ) -> None:
+    async def test_raises_when_llm_returns_empty(self, mocker: MockerFixture) -> None:
         """Empty LLM response surfaces ValueError, not an empty fold."""
         client = mocker.AsyncMock()
         client.responses.create.return_value = _make_summary_response(mocker, "")

tests/unit/utils/test_token_estimator.py

@@ -14,7 +14,6 @@
     get_context_window,
 )
 
-
 # ---------------------------------------------------------------------------
 # Helpers / fixtures
 # ---------------------------------------------------------------------------
@@ -65,9 +64,7 @@ def test_single_word(self) -> None:
 
     def test_pangram(self) -> None:
         """The pangram tokenizes to the known cl100k_base count."""
-        assert (
-            estimate_tokens("The quick brown fox jumps over the lazy dog.") == 10
-        )
+        assert estimate_tokens("The quick brown fox jumps over the lazy dog.") == 10
 
     def test_known_phrase(self) -> None:
         """A second reference phrase agrees with the published count."""
@@ -214,9 +211,9 @@ def test_accepts_openai_dict_shape(self) -> None:
             _MessageItem("user", "hello world"),
             _MessageItem("assistant", "hi"),
         ]
-        assert estimate_conversation_tokens(
-            dicts
-        ) == estimate_conversation_tokens(items)
+        assert estimate_conversation_tokens(dicts) == estimate_conversation_tokens(
+            items
+        )
 
     def test_accepts_mixed_shapes(self) -> None:
         """A mixed list of dicts and Llama Stack items is supported."""