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import pytest
def run_async(coro):
buffer = []
result = None
while True:
try:
buffer.append(coro.send(None))
except StopIteration as ex:
result = ex.args[0] if ex.args else None
break
return buffer, result
def test_error_aiter_anext():
with pytest.raises(TypeError) as info:
aiter(1)
assert "'int' object is not an async iterable" in str(info.value)
with pytest.raises(TypeError) as info:
anext(1)
assert "'int' object is not an async iterator" in str(info.value)
class BadAsyncIterable:
def __aiter__(self):
return 'abc'
with pytest.raises(TypeError) as info:
aiter(BadAsyncIterable())
assert "aiter() returned not an async iterator of type 'str'" in str(info.value)
def test_aiter_anext():
async def foo():
yield 1
yield 2
async def run():
it = aiter(foo())
val1 = await anext(it)
assert val1 == 1
val2 = await anext(it)
assert val2 == 2
run_async(run())
def test_getattr_etc_error():
with raises(TypeError) as info:
getattr(test_getattr_etc_error, b'__code__')
assert "getattr(): attribute name must be string, not 'bytes'" in str(info.value)
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