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checkpoint: switch thread_ts -> checkpoint_id, add checkpoint_ns, change serializer protocol (#1185)

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---------

Co-authored-by: Nuno Campos <nuno@langchain.dev>
This commit is contained in:
Vadym Barda
2024-08-02 01:08:19 +00:00
committed by GitHub
co-authored by Nuno Campos
parent 862afa27de
commit 4b2187c9a3
22 changed files with 1491 additions and 458 deletions
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libs/checkpoint/tests/test_sqlite.py
+38 -4
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@@ -18,14 +18,31 @@ class TestSqliteSaver:
# objects for test setup
self.config_1: RunnableConfig = {
"configurable": {"thread_id": "thread-1", "thread_ts": "1"}
"configurable": {
"thread_id": "thread-1",
# for backwards compatibility testing
"thread_ts": "1",
"checkpoint_ns": "",
}
}
self.config_2: RunnableConfig = {
"configurable": {"thread_id": "thread-2", "thread_ts": "2"}
"configurable": {
"thread_id": "thread-2",
"checkpoint_id": "2",
"checkpoint_ns": "",
}
}
self.config_3: RunnableConfig = {
"configurable": {
"thread_id": "thread-2",
"checkpoint_id": "2-inner",
"checkpoint_ns": "inner",
}
}
self.chkpnt_1: Checkpoint = empty_checkpoint()
self.chkpnt_2: Checkpoint = create_checkpoint(self.chkpnt_1, {}, 1)
self.chkpnt_3: Checkpoint = empty_checkpoint()
self.metadata_1: CheckpointMetadata = {
"source": "input",
@@ -46,6 +63,7 @@ class TestSqliteSaver:
# save checkpoints
self.sqlite_saver.put(self.config_1, self.chkpnt_1, self.metadata_1)
self.sqlite_saver.put(self.config_2, self.chkpnt_2, self.metadata_2)
self.sqlite_saver.put(self.config_3, self.chkpnt_3, self.metadata_3)
# call method / assertions
query_1: CheckpointMetadata = {"source": "input"} # search by 1 key
@@ -65,16 +83,32 @@ class TestSqliteSaver:
assert search_results_2[0].metadata == self.metadata_2
search_results_3 = list(self.sqlite_saver.list(None, filter=query_3))
assert len(search_results_3) == 2
assert len(search_results_3) == 3
search_results_4 = list(self.sqlite_saver.list(None, filter=query_4))
assert len(search_results_4) == 0
# search by config (defaults to root graph checkpoints)
search_results_5 = list(
self.sqlite_saver.list({"configurable": {"thread_id": "thread-2"}})
)
assert len(search_results_5) == 1
assert search_results_5[0].config["configurable"]["checkpoint_ns"] == ""
# search by config and checkpoint_ns
search_results_6 = list(
self.sqlite_saver.list(
{"configurable": {"thread_id": "thread-2", "checkpoint_ns": "inner"}}
)
)
assert len(search_results_6) == 1
assert search_results_6[0].config["configurable"]["checkpoint_ns"] == "inner"
# TODO: test before and limit params
def test_search_where(self):
# call method / assertions
expected_predicate_1 = "WHERE json_extract(CAST(metadata AS TEXT), '$.source') = ? AND json_extract(CAST(metadata AS TEXT), '$.step') = ? AND json_extract(CAST(metadata AS TEXT), '$.writes') = ? AND json_extract(CAST(metadata AS TEXT), '$.score') = ? AND thread_ts < ?"
expected_predicate_1 = "WHERE json_extract(CAST(metadata AS TEXT), '$.source') = ? AND json_extract(CAST(metadata AS TEXT), '$.step') = ? AND json_extract(CAST(metadata AS TEXT), '$.writes') = ? AND json_extract(CAST(metadata AS TEXT), '$.score') = ? AND checkpoint_id < ?"
expected_param_values_1 = ["input", 2, "{}", 1, "1"]
assert search_where(None, self.metadata_1, self.config_1) == (
expected_predicate_1,