More meta tests for test_signatures.py

array_api_tests/meta/test_signatures.py

@@ -1,11 +1,52 @@
-from inspect import signature
+from inspect import Parameter, Signature, signature
 
 import pytest
 
 from ..test_signatures import _test_inspectable_func
 
 
-@pytest.mark.xfail("not implemented")
+def stub(foo, /, bar=None, *, baz=None):
+    pass
+
+
+stub_sig = signature(stub)
+
+
+def test_does_not_raise_on_interopable_kw_arg():
+    def stub_without_kwonly(foo, /, bar=None, baz=None):
+        pass
+
+    _test_inspectable_func(
+        signature(stub_without_kwonly),
+        stub_sig,
+    )
+
+
+@pytest.mark.parametrize(
+    "sig",
+    [
+        Signature(
+            [
+                Parameter("foo", Parameter.POSITIONAL_ONLY),
+                Parameter("bar", Parameter.POSITIONAL_ONLY),
+                Parameter("baz", Parameter.KEYWORD_ONLY),
+            ]
+        ),
+        Signature(
+            [
+                Parameter("foo", Parameter.POSITIONAL_ONLY),
+                Parameter("bar", Parameter.KEYWORD_ONLY),
+                Parameter("baz", Parameter.KEYWORD_ONLY),
+            ]
+        ),
+    ],
+)
+def test_raises_on_bad_sig(sig):
+    with pytest.raises(AssertionError):
+        _test_inspectable_func(sig, stub_sig)
+
+
+@pytest.mark.xfail(reason="not implemented")
 def test_kwonly():
     def func(*, foo=None, bar=None):
         pass