first commit

third_party/pybind11/tests/test_async.py

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+import pytest
+
+asyncio = pytest.importorskip("asyncio")
+m = pytest.importorskip("pybind11_tests.async_module")
+
+
+@pytest.fixture
+def event_loop():
+    loop = asyncio.new_event_loop()
+    yield loop
+    loop.close()
+
+
+async def get_await_result(x):
+    return await x
+
+
+def test_await(event_loop):
+    assert 5 == event_loop.run_until_complete(
+        get_await_result(m.SupportsAsync()))
+
+
+def test_await_missing(event_loop):
+    with pytest.raises(TypeError):
+        event_loop.run_until_complete(
+            get_await_result(m.DoesNotSupportAsync()))