import os import sys import unittest import six if six.PY3: from unittest import mock else: import mock if sys.version_info >= (3, 5): import asyncio from asyncio import coroutine from engineio import async_asgi def AsyncMock(*args, **kwargs): """Return a mock asynchronous function.""" m = mock.MagicMock(*args, **kwargs) @coroutine def mock_coro(*args, **kwargs): return m(*args, **kwargs) mock_coro.mock = m return mock_coro def _run(coro): """Run the given coroutine.""" return asyncio.get_event_loop().run_until_complete(coro) @unittest.skipIf(sys.version_info < (3, 5), 'only for Python 3.5+') class AsgiTests(unittest.TestCase): def test_create_app(self): app = async_asgi.ASGIApp( 'eio', 'other_app', static_files='static_files', engineio_path='/foo') self.assertEqual(app.engineio_server, 'eio') self.assertEqual(app.other_asgi_app, 'other_app') self.assertEqual(app.static_files, 'static_files') self.assertEqual(app.engineio_path, 'foo'), def test_engineio_routing(self): mock_server = mock.MagicMock() mock_server.handle_request = AsyncMock() app = async_asgi.ASGIApp(mock_server) scope = {'type': 'http', 'path': '/engine.io/'} handler = app(scope) _run(handler('receive', 'send')) mock_server.handle_request.mock.assert_called_once_with( scope, 'receive', 'send') def test_other_app_routing(self): other_app = mock.MagicMock() app = async_asgi.ASGIApp('eio', other_app) scope = {'type': 'http', 'path': '/foo'} app(scope) other_app.assert_called_once_with(scope) def test_static_file_routing(self): root_dir = os.path.dirname(__file__) app = async_asgi.ASGIApp('eio', static_files={ '/foo': {'content_type': 'text/html', 'filename': root_dir + '/index.html'} }) handler = app({'type': 'http', 'path': '/foo'}) receive = AsyncMock(return_value={'type': 'http.request'}) send = AsyncMock() _run(handler(receive, send)) send.mock.assert_called_with({'type': 'http.response.body', 'body': b'\n'}) def test_lifespan_startup(self): app = async_asgi.ASGIApp('eio') handler = app({'type': 'lifespan'}) receive = AsyncMock(return_value={'type': 'lifespan.startup'}) send = AsyncMock() _run(handler(receive, send)) send.mock.assert_called_once_with( {'type': 'lifespan.startup.complete'}) def test_lifespan_shutdown(self): app = async_asgi.ASGIApp('eio') handler = app({'type': 'lifespan'}) receive = AsyncMock(return_value={'type': 'lifespan.shutdown'}) send = AsyncMock() _run(handler(receive, send)) send.mock.assert_called_once_with( {'type': 'lifespan.shutdown.complete'}) def test_lifespan_invalid(self): app = async_asgi.ASGIApp('eio') handler = app({'type': 'lifespan'}) receive = AsyncMock(return_value={'type': 'lifespan.foo'}) send = AsyncMock() _run(handler(receive, send)) send.mock.assert_not_called() def test_not_found(self): app = async_asgi.ASGIApp('eio') handler = app({'type': 'http', 'path': '/foo'}) receive = AsyncMock(return_value={'type': 'http.request'}) send = AsyncMock() _run(handler(receive, send)) send.mock.assert_any_call( {'type': 'http.response.start', 'status': 404, 'headers': [(b'Content-Type', b'text/plain')]}) send.mock.assert_any_call({'type': 'http.response.body', 'body': b'not found'}) def test_translate_request(self): receive = AsyncMock(return_value={'type': 'http.request', 'body': b'hello world'}) send = AsyncMock() environ = _run(async_asgi.translate_request({ 'type': 'http', 'method': 'PUT', 'headers': [(b'a', b'b'), (b'c-c', b'd'), (b'c_c', b'e'), (b'content-type', b'application/json'), (b'content-length', b'123')], 'path': '/foo/bar', 'query_string': b'baz=1'}, receive, send)) expected_environ = { 'REQUEST_METHOD': 'PUT', 'PATH_INFO': '/foo/bar', 'QUERY_STRING': 'baz=1', 'CONTENT_TYPE': 'application/json', 'CONTENT_LENGTH': '123', 'HTTP_A': 'b', # 'HTTP_C_C': 'd,e', 'RAW_URI': '/foo/bar?baz=1', 'SERVER_PROTOCOL': 'HTTP/1.1', 'asgi.receive': receive, 'asgi.send': send } for k, v in expected_environ.items(): self.assertEqual(v, environ[k]) self.assertTrue( environ['HTTP_C_C'] == 'd,e' or environ['HTTP_C_C'] == 'e,d') body = _run(environ['wsgi.input'].read()) self.assertEqual(body, b'hello world') def test_translate_request_no_query_string(self): receive = AsyncMock(return_value={'type': 'http.request', 'body': b'hello world'}) send = AsyncMock() environ = _run(async_asgi.translate_request({ 'type': 'http', 'method': 'PUT', 'headers': [(b'a', b'b'), (b'c-c', b'd'), (b'c_c', b'e'), (b'content-type', b'application/json'), (b'content-length', b'123')], 'path': '/foo/bar'}, receive, send)) expected_environ = { 'REQUEST_METHOD': 'PUT', 'PATH_INFO': '/foo/bar', 'QUERY_STRING': '', 'CONTENT_TYPE': 'application/json', 'CONTENT_LENGTH': '123', 'HTTP_A': 'b', # 'HTTP_C_C': 'd,e', 'RAW_URI': '/foo/bar', 'SERVER_PROTOCOL': 'HTTP/1.1', 'asgi.receive': receive, 'asgi.send': send } for k, v in expected_environ.items(): self.assertEqual(v, environ[k]) self.assertTrue( environ['HTTP_C_C'] == 'd,e' or environ['HTTP_C_C'] == 'e,d') body = _run(environ['wsgi.input'].read()) self.assertEqual(body, b'hello world') def test_translate_request_with_large_body(self): receive = AsyncMock(side_effect=[ {'type': 'http.request', 'body': b'hello ', 'more_body': True}, {'type': 'http.request', 'body': b'world', 'more_body': True}, {'type': 'foo.bar'}, # should stop parsing here {'type': 'http.request', 'body': b'!!!'}, ]) send = AsyncMock() environ = _run(async_asgi.translate_request({ 'type': 'http', 'method': 'PUT', 'headers': [(b'a', b'b'), (b'c-c', b'd'), (b'c_c', b'e'), (b'content-type', b'application/json'), (b'content-length', b'123')], 'path': '/foo/bar', 'query_string': b'baz=1'}, receive, send)) expected_environ = { 'REQUEST_METHOD': 'PUT', 'PATH_INFO': '/foo/bar', 'QUERY_STRING': 'baz=1', 'CONTENT_TYPE': 'application/json', 'CONTENT_LENGTH': '123', 'HTTP_A': 'b', # 'HTTP_C_C': 'd,e', 'RAW_URI': '/foo/bar?baz=1', 'SERVER_PROTOCOL': 'HTTP/1.1', 'asgi.receive': receive, 'asgi.send': send } for k, v in expected_environ.items(): self.assertEqual(v, environ[k]) self.assertTrue( environ['HTTP_C_C'] == 'd,e' or environ['HTTP_C_C'] == 'e,d') body = _run(environ['wsgi.input'].read()) self.assertEqual(body, b'hello world') def test_translate_websocket_request(self): receive = AsyncMock(return_value={'type': 'websocket.connect'}) send = AsyncMock() _run(async_asgi.translate_request({ 'type': 'websocket', 'headers': [(b'a', b'b'), (b'c-c', b'd'), (b'c_c', b'e'), (b'content-type', b'application/json'), (b'content-length', b'123')], 'path': '/foo/bar', 'query_string': b'baz=1'}, receive, send)) send.mock.assert_called_once_with({'type': 'websocket.accept'}) def test_translate_unknown_request(self): receive = AsyncMock(return_value={'type': 'http.foo'}) send = AsyncMock() environ = _run(async_asgi.translate_request({ 'type': 'http', 'path': '/foo/bar', 'query_string': b'baz=1'}, receive, send)) self.assertEqual(environ, {}) # @mock.patch('async_aiohttp.aiohttp.web.Response') def test_make_response(self): environ = { 'asgi.send': AsyncMock() } _run(async_asgi.make_response('202 ACCEPTED', [('foo', 'bar')], b'payload', environ)) print(environ['asgi.send'].mock.call_args_list) environ['asgi.send'].mock.assert_any_call( {'type': 'http.response.start', 'status': 202, 'headers': [(b'foo', b'bar')]}) environ['asgi.send'].mock.assert_any_call( {'type': 'http.response.body', 'body': b'payload'})