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Merge pull request #24315

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* community: Add Hierarchy link extractor

* add example

* lint
This commit is contained in:
Ben Chambers
2024-07-19 06:42:26 -07:00
committed by GitHub
parent c3308f31bc
commit 242b085be7
3 changed files with 196 additions and 0 deletions
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84
libs/community/tests/unit_tests/graph_vectorstores/extractors/test_hierarchy_link_extractor.py Normal file
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from langchain_core.graph_vectorstores.links import Link
from langchain_community.graph_vectorstores.extractors import HierarchyLinkExtractor
PATH_1 = ["Root", "H1", "h2"]
PATH_2 = ["Root", "H1"]
PATH_3 = ["Root"]
def test_up_only() -> None:
extractor = HierarchyLinkExtractor()
assert extractor.extract_one(PATH_1) == {
# Path1 links up to Root/H1
Link.outgoing(kind="hierarchy", tag="up:Root/H1"),
# Path1 is linked to by stuff under Root/H1/h2
Link.incoming(kind="hierarchy", tag="up:Root/H1/h2"),
}
assert extractor.extract_one(PATH_2) == {
# Path2 links up to Root
Link.outgoing(kind="hierarchy", tag="up:Root"),
# Path2 is linked to by stuff under Root/H1/h2
Link.incoming(kind="hierarchy", tag="up:Root/H1"),
}
assert extractor.extract_one(PATH_3) == {
# Path3 is linked to by stuff under Root
Link.incoming(kind="hierarchy", tag="up:Root"),
}
def test_up_and_down() -> None:
extractor = HierarchyLinkExtractor(child_links=True)
assert extractor.extract_one(PATH_1) == {
# Path1 links up to Root/H1
Link.outgoing(kind="hierarchy", tag="up:Root/H1"),
# Path1 is linked to by stuff under Root/H1/h2
Link.incoming(kind="hierarchy", tag="up:Root/H1/h2"),
# Path1 links down to things under Root/H1/h2.
Link.outgoing(kind="hierarchy", tag="down:Root/H1/h2"),
# Path1 is linked down to by Root/H1
Link.incoming(kind="hierarchy", tag="down:Root/H1"),
}
assert extractor.extract_one(PATH_2) == {
# Path2 links up to Root
Link.outgoing(kind="hierarchy", tag="up:Root"),
# Path2 is linked to by stuff under Root/H1/h2
Link.incoming(kind="hierarchy", tag="up:Root/H1"),
# Path2 links down to things under Root/H1.
Link.outgoing(kind="hierarchy", tag="down:Root/H1"),
# Path2 is linked down to by Root
Link.incoming(kind="hierarchy", tag="down:Root"),
}
assert extractor.extract_one(PATH_3) == {
# Path3 is linked to by stuff under Root
Link.incoming(kind="hierarchy", tag="up:Root"),
# Path3 links down to things under Root/H1.
Link.outgoing(kind="hierarchy", tag="down:Root"),
}
def test_sibling() -> None:
extractor = HierarchyLinkExtractor(sibling_links=True, parent_links=False)
assert extractor.extract_one(PATH_1) == {
# Path1 links with anything else in Root/H1
Link.bidir(kind="hierarchy", tag="sib:Root/H1"),
}
assert extractor.extract_one(PATH_2) == {
# Path2 links with anything else in Root
Link.bidir(kind="hierarchy", tag="sib:Root"),
}
assert extractor.extract_one(PATH_3) == {
# Path3 links with anything else at the top level
Link.bidir(kind="hierarchy", tag="sib:"),
}