114 lines
3.8 KiB
Python
114 lines
3.8 KiB
Python
import asyncio
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import unittest
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from ipython_shell.jupyter.transport import (
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InputRequest,
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JupyterTransport,
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KernelMessage,
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)
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class TransportTests(unittest.TestCase):
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def test_kernel_message_keeps_content_and_buffers(self):
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message = KernelMessage(
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msg_type="display_data",
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parent_id="call-1",
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content={"data": {"text/plain": "42"}},
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buffers=[b"binary"],
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)
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self.assertEqual(message.parent_id, "call-1")
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self.assertEqual(message.content["data"], {"text/plain": "42"})
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self.assertEqual(message.buffers, [b"binary"])
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class AsyncTransportTests(unittest.IsolatedAsyncioTestCase):
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async def test_transport_executes_and_returns_execute_reply(self):
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transport = JupyterTransport()
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await transport.start()
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try:
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call_id = await transport.execute("2 + 2")
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messages = [message async for message in transport.messages_for(call_id)]
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finally:
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await transport.shutdown()
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self.assertTrue(
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any(message.msg_type == "execute_result" for message in messages)
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)
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self.assertEqual(messages[-1].msg_type, "execute_reply")
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self.assertEqual(messages[-1].content["status"], "ok")
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async def test_transport_preserves_mime_and_errors(self):
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transport = JupyterTransport()
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await transport.start()
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try:
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display_id = await transport.execute(
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"from IPython.display import display\n"
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"display({'text/plain': 'hello'}, raw=True)"
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)
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display_messages = [
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message async for message in transport.messages_for(display_id)
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]
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error_id = await transport.execute("raise ValueError('boom')")
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error_messages = [
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message async for message in transport.messages_for(error_id)
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]
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finally:
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await transport.shutdown()
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display = next(
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message
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for message in display_messages
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if message.msg_type == "display_data"
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)
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self.assertEqual(display.content["data"]["text/plain"], "hello")
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error = next(
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message for message in error_messages if message.msg_type == "error"
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)
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self.assertEqual(error.content["ename"], "ValueError")
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async def test_transport_preserves_matplotlib_mime_output(self):
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transport = JupyterTransport()
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await transport.start()
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try:
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call_id = await transport.execute(
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"import matplotlib.pyplot as plt\nplt.plot([1, 2, 3], [4, 5, 6])"
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)
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messages = [message async for message in transport.messages_for(call_id)]
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finally:
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await transport.shutdown()
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display = next(
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message for message in messages if message.msg_type == "display_data"
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)
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self.assertIn("image/png", display.content["data"])
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async def test_transport_routes_input_reply_without_parent_stdin(self):
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transport = JupyterTransport()
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await transport.start()
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try:
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call_id = await transport.execute("answer = input('name? '); answer")
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stream = transport.messages_for(call_id)
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while True:
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event = await asyncio.wait_for(anext(stream), timeout=5)
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if isinstance(event, InputRequest):
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input_request = event
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break
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self.assertEqual(input_request.prompt, "name? ")
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await transport.reply_to_input("Ada")
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messages = [message async for message in stream]
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finally:
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await transport.shutdown()
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self.assertTrue(
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any(message.msg_type == "execute_result" for message in messages)
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)
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if __name__ == "__main__":
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unittest.main()
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