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https://github.com/deepset-ai/haystack.git
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9ace6bf63d
* track default value in sockets * remove dead code * include default value in socket description * add unit test * add relnote * unused import * clarify
72 lines
2.7 KiB
Python
72 lines
2.7 KiB
Python
from haystack.core.component.connection import Connection
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from haystack.core.component.sockets import InputSocket, OutputSocket
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from haystack.core.errors import PipelineConnectError
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import pytest
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@pytest.mark.parametrize(
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"c,expected",
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[
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(
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Connection("source_component", OutputSocket("out", int), "destination_component", InputSocket("in", int)),
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"source_component.out (int) --> (int) destination_component.in",
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),
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(
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Connection(None, None, "destination_component", InputSocket("in", int)),
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"input needed --> (int) destination_component.in",
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),
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(Connection("source_component", OutputSocket("out", int), None, None), "source_component.out (int) --> output"),
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(Connection(None, None, None, None), "input needed --> output"),
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],
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)
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def test_repr(c, expected):
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assert str(c) == expected
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def test_is_mandatory():
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c = Connection(None, None, "destination_component", InputSocket("in", int))
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assert c.is_mandatory
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c = Connection(None, None, "destination_component", InputSocket("in", int, 42))
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assert not c.is_mandatory
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c = Connection("source_component", OutputSocket("out", int), None, None)
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assert not c.is_mandatory
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def test_from_list_of_sockets():
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sender_sockets = [OutputSocket("out_int", int), OutputSocket("out_str", str)]
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receiver_sockets = [InputSocket("in_str", str)]
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c = Connection.from_list_of_sockets("from_node", sender_sockets, "to_node", receiver_sockets)
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assert c.sender_socket.name == "out_str" # type:ignore
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def test_from_list_of_sockets_not_possible():
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sender_sockets = [OutputSocket("out_int", int), OutputSocket("out_str", str)]
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receiver_sockets = [InputSocket("in_list", list), InputSocket("in_tuple", tuple)]
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with pytest.raises(PipelineConnectError, match="no matching connections available"):
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Connection.from_list_of_sockets("from_node", sender_sockets, "to_node", receiver_sockets)
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def test_from_list_of_sockets_too_many():
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sender_sockets = [OutputSocket("out_int", int), OutputSocket("out_str", str)]
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receiver_sockets = [InputSocket("in_int", int), InputSocket("in_str", str)]
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with pytest.raises(PipelineConnectError, match="more than one connection is possible"):
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Connection.from_list_of_sockets("from_node", sender_sockets, "to_node", receiver_sockets)
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def test_from_list_of_sockets_only_one():
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sender_sockets = [OutputSocket("out_int", int)]
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receiver_sockets = [InputSocket("in_str", str)]
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with pytest.raises(PipelineConnectError, match="their declared input and output types do not match"):
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Connection.from_list_of_sockets("from_node", sender_sockets, "to_node", receiver_sockets)
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