Update 2025-04-24_11:44:19

venv/lib/python3.11/site-packages/greenlet/tests/test_extension_interface.py

@@ -0,0 +1,115 @@
+from __future__ import print_function
+from __future__ import absolute_import
+
+import sys
+
+import greenlet
+from . import _test_extension
+from . import TestCase
+
+# pylint:disable=c-extension-no-member
+
+class CAPITests(TestCase):
+    def test_switch(self):
+        self.assertEqual(
+            50, _test_extension.test_switch(greenlet.greenlet(lambda: 50)))
+
+    def test_switch_kwargs(self):
+        def adder(x, y):
+            return x * y
+        g = greenlet.greenlet(adder)
+        self.assertEqual(6, _test_extension.test_switch_kwargs(g, x=3, y=2))
+
+    def test_setparent(self):
+        # pylint:disable=disallowed-name
+        def foo():
+            def bar():
+                greenlet.getcurrent().parent.switch()
+
+                # This final switch should go back to the main greenlet, since
+                # the test_setparent() function in the C extension should have
+                # reparented this greenlet.
+                greenlet.getcurrent().parent.switch()
+                raise AssertionError("Should never have reached this code")
+            child = greenlet.greenlet(bar)
+            child.switch()
+            greenlet.getcurrent().parent.switch(child)
+            greenlet.getcurrent().parent.throw(
+                AssertionError("Should never reach this code"))
+        foo_child = greenlet.greenlet(foo).switch()
+        self.assertEqual(None, _test_extension.test_setparent(foo_child))
+
+    def test_getcurrent(self):
+        _test_extension.test_getcurrent()
+
+    def test_new_greenlet(self):
+        self.assertEqual(-15, _test_extension.test_new_greenlet(lambda: -15))
+
+    def test_raise_greenlet_dead(self):
+        self.assertRaises(
+            greenlet.GreenletExit, _test_extension.test_raise_dead_greenlet)
+
+    def test_raise_greenlet_error(self):
+        self.assertRaises(
+            greenlet.error, _test_extension.test_raise_greenlet_error)
+
+    def test_throw(self):
+        seen = []
+
+        def foo():         # pylint:disable=disallowed-name
+            try:
+                greenlet.getcurrent().parent.switch()
+            except ValueError:
+                seen.append(sys.exc_info()[1])
+            except greenlet.GreenletExit:
+                raise AssertionError
+        g = greenlet.greenlet(foo)
+        g.switch()
+        _test_extension.test_throw(g)
+        self.assertEqual(len(seen), 1)
+        self.assertTrue(
+            isinstance(seen[0], ValueError),
+            "ValueError was not raised in foo()")
+        self.assertEqual(
+            str(seen[0]),
+            'take that sucka!',
+            "message doesn't match")
+
+    def test_non_traceback_param(self):
+        with self.assertRaises(TypeError) as exc:
+            _test_extension.test_throw_exact(
+                greenlet.getcurrent(),
+                Exception,
+                Exception(),
+                self
+            )
+        self.assertEqual(str(exc.exception),
+                         "throw() third argument must be a traceback object")
+
+    def test_instance_of_wrong_type(self):
+        with self.assertRaises(TypeError) as exc:
+            _test_extension.test_throw_exact(
+                greenlet.getcurrent(),
+                Exception(),
+                BaseException(),
+                None,
+            )
+
+        self.assertEqual(str(exc.exception),
+                         "instance exception may not have a separate value")
+
+    def test_not_throwable(self):
+        with self.assertRaises(TypeError) as exc:
+            _test_extension.test_throw_exact(
+                greenlet.getcurrent(),
+                "abc",
+                None,
+                None,
+            )
+        self.assertEqual(str(exc.exception),
+                         "exceptions must be classes, or instances, not str")
+
+
+if __name__ == '__main__':
+    import unittest
+    unittest.main()