faulthandler: register faulthandler_timeout as type=float

changelog/15132.bugfix.rst

@@ -0,0 +1,3 @@
+``faulthandler_timeout`` is now registered with type ``float``, so native TOML
+integers and floats (e.g. ``faulthandler_timeout = 5`` in ``pytest.toml``)
+are accepted instead of being rejected with ``expects a string, got int``.

src/_pytest/faulthandler.py

@@ -24,7 +24,7 @@ def pytest_addoption(parser: Parser) -> None:
         "Exit the test process if a test takes more than "
         "faulthandler_timeout seconds to finish"
     )
-    parser.addini("faulthandler_timeout", help_timeout, default=0.0)
+    parser.addini("faulthandler_timeout", help_timeout, type="float", default=0.0)
     parser.addini(
         "faulthandler_exit_on_timeout", help_exit_on_timeout, type="bool", default=False
     )

testing/test_faulthandler.py

@@ -219,3 +219,22 @@ def fileno(self):
         # Even when the stderr wrapper signals an invalid file descriptor,
         # ``_get_stderr_fileno()`` should return the real one.
         assert get_stderr_fileno() == 2
+
+
+def test_timeout_accepts_native_toml_numbers(pytester: Pytester) -> None:
+    """faulthandler_timeout is float-typed, so native TOML numbers work (#15132)."""
+    pytester.makepyprojecttoml(
+        """
+        [tool.pytest]
+        faulthandler_timeout = 5
+        """
+    )
+    assert pytester.parseconfig().getini("faulthandler_timeout") == 5.0
+
+    pytester.makepyprojecttoml(
+        """
+        [tool.pytest]
+        faulthandler_timeout = 2.5
+        """
+    )
+    assert pytester.parseconfig().getini("faulthandler_timeout") == 2.5