Migrate tests/ from yapf to ruff-format

Signed-off-by: Harry Mellor <19981378+hmellor@users.noreply.github.com>

Author: hmellor

.pre-commit-config.yaml

@@ -12,14 +12,27 @@ repos:
   - id: yapf
     args: [--in-place, --verbose]
     # Keep the same list from yapfignore here to avoid yapf failing without any inputs
-    exclude: '(.buildkite|benchmarks|build|examples)/.*'
+    exclude: |
+      (?x)^(
+        .buildkite|
+        benchmarks|
+        build|
+        examples|
+        tests
+      )/.*$
 - repo: https://github.com/astral-sh/ruff-pre-commit
   rev: v0.11.7
   hooks:
   - id: ruff
     args: [--output-format, github, --fix]
   - id: ruff-format
-    files: ^(.buildkite|benchmarks|examples)/.*
+    files: |
+      (?x)^(
+        .buildkite|
+        benchmarks|
+        examples|
+        tests
+      )/.*$
 - repo: https://github.com/crate-ci/typos
   rev: v1.34.0
   hooks:

pyproject.toml

@@ -57,6 +57,7 @@ ignore_patterns = [
     "benchmarks/**",
     "build/**",
     "examples/**",
+    "tests/**",
     "vllm/collect_env.py",
 ]
 
@@ -143,6 +144,7 @@ skip_glob = [
     ".buildkite/*",
     "benchmarks/*",
     "examples/*",
+    "tests/*",
 ]
 use_parentheses = true
 skip_gitignore = true

tests/pyproject.toml

@@ -0,0 +1,54 @@
+# This local pyproject file is part of the migration from yapf to ruff format.
+# It uses the same core rules as the main pyproject.toml file, but with the
+# following differences:
+# - ruff line length is overridden to 88
+# - deprecated typing ignores (UP006, UP035) have been removed
+
+[tool.ruff]
+line-length = 88
+exclude = [
+    # External file, leaving license intact
+    "examples/other/fp8/quantizer/quantize.py",
+    "vllm/vllm_flash_attn/flash_attn_interface.pyi"
+]
+
+[tool.ruff.lint.per-file-ignores]
+"vllm/third_party/**" = ["ALL"]
+"vllm/version.py" = ["F401"]
+"vllm/_version.py" = ["ALL"]
+
+[tool.ruff.lint]
+select = [
+    # pycodestyle
+    "E",
+    # Pyflakes
+    "F",
+    # pyupgrade
+    "UP",
+    # flake8-bugbear
+    "B",
+    # flake8-simplify
+    "SIM",
+    # isort
+    "I",
+    # flake8-logging-format
+    "G",
+]
+ignore = [
+    # star imports
+    "F405", "F403",
+    # lambda expression assignment
+    "E731",
+    # Loop control variable not used within loop body
+    "B007",
+    # f-string format
+    "UP032",
+    # Can remove once 3.10+ is the minimum Python version
+    "UP007",
+]
+
+[tool.ruff.lint.isort]
+known-first-party = ["vllm"]
+
+[tool.ruff.format]
+docstring-code-format = true