Rework a bit this test.

tests/sample5.pyx

@@ -1,8 +1,12 @@
 # cython: linetrace=True, language_level=3
-foo = bar = lambda x: x
+a = b = lambda x: x
 
 
-@foo
-@bar
+@a
+@b
 def foo():
     return 1
+
+
+def bar():
+    foo()

tests/test_tracer.py

@@ -849,15 +849,15 @@ def foo():
 def test_source_cython(LineMatcher):
     pytest.importorskip('sample5')
     calls = []
-    from sample5 import foo
+    from sample5 import bar
 
     with trace(action=lambda event: calls.extend(event.source.splitlines())):
-        foo()
+        bar()
 
     lm = LineMatcher(calls)
     lm.fnmatch_lines(
         [
-            'def foo():',
+            'def bar():',
             '    return 1',
         ]
     )

tox.ini

@@ -42,7 +42,7 @@ deps =
     pytest
     pytest-benchmark
     cover: pytest-cov
-    {cython,cover}: cython==3.0.10
+    {py38,py39,py310,py311,py312}: cython==3.0.10
     manhole
     process-tests
     setuptools-scm
@@ -52,7 +52,8 @@ deps =
     tzdata
     ipdb
 commands =
-    {py38,py39,py310,py311,py312}: python tests/setup.py clean --all build_ext --force --inplace
+    {py38,py39,py310,py311,py312}: python tests/setup.py clean --all
+    {py38,py39,py310,py311,py312}: python tests/setup.py build_ext --force --inplace
     cover: python setup.py clean --all build_ext --force --inplace
     nocov: {posargs:pytest -vv --ignore=src}
     cover: {posargs:pytest --cov --cov-report=term-missing -vv}