fcfa4aefd8
DatabaseScope.resolve reads configuration and at most one selector; a DatabaseRef carries the configured name and a location already resolved to a URI or a path, so a path a caller names is never reinterpreted. Nothing consumes it yet.
178 lines
7 KiB
Python
178 lines
7 KiB
Python
from pathlib import Path
|
|
|
|
import pytest
|
|
|
|
from haiku.rag.client.scope import DatabaseRef, DatabaseScope
|
|
from haiku.rag.config.models import AppConfig, LanceDBConfig, StorageConfig
|
|
from haiku.rag.store.exceptions import AmbiguousDatabaseError
|
|
|
|
|
|
def _config(**kwargs) -> AppConfig:
|
|
return AppConfig(lancedb=LanceDBConfig(**kwargs))
|
|
|
|
|
|
class TestResolution:
|
|
"""One selector at most, and the same answer wherever it is asked."""
|
|
|
|
def test_a_name_and_a_path_together_are_refused(self):
|
|
config = _config(databases={"alpha": "/data/alpha.lancedb"})
|
|
|
|
with pytest.raises(AmbiguousDatabaseError, match="pass one of them"):
|
|
DatabaseScope.resolve(
|
|
config, database_name="alpha", database_path=Path("/data/other.lancedb")
|
|
)
|
|
|
|
def test_a_path_names_one_unnamed_database(self):
|
|
"""A path says which database, not what it is called, even where the
|
|
configuration would have named it."""
|
|
config = _config(databases={"alpha": "/data/alpha.lancedb"})
|
|
|
|
scope = DatabaseScope.resolve(config, database_path=Path("/data/other.lancedb"))
|
|
|
|
assert scope.databases == (DatabaseRef.at("/data/other.lancedb"),)
|
|
assert scope.names == ()
|
|
assert not scope.covers_multiple
|
|
|
|
def test_a_named_database_keeps_its_name(self):
|
|
config = _config(databases={"alpha": "/data/alpha.lancedb", "beta": "b://b"})
|
|
|
|
scope = DatabaseScope.resolve(config, database_name="beta")
|
|
|
|
assert scope.databases == (DatabaseRef("beta", "b://b", None),)
|
|
assert scope.names == ("beta",)
|
|
|
|
def test_an_unknown_name_is_refused(self):
|
|
config = _config(databases={"alpha": "/data/alpha.lancedb"})
|
|
|
|
with pytest.raises(AmbiguousDatabaseError, match="unknown database 'nope'"):
|
|
DatabaseScope.resolve(config, database_name="nope")
|
|
|
|
def test_no_selector_covers_the_configured_set_in_order(self):
|
|
config = _config(
|
|
databases={"beta": "/data/b.lancedb", "alpha": "/data/a.lancedb"}
|
|
)
|
|
|
|
scope = DatabaseScope.resolve(config)
|
|
|
|
assert scope.names == ("beta", "alpha")
|
|
assert scope.covers_multiple
|
|
|
|
def test_a_configured_set_of_one_is_still_a_named_database(self):
|
|
"""Its name is what results and citations carry, so it survives."""
|
|
config = _config(databases={"alpha": "/data/alpha.lancedb"})
|
|
|
|
scope = DatabaseScope.resolve(config)
|
|
|
|
assert scope.databases == (
|
|
DatabaseRef.configured("alpha", "/data/alpha.lancedb"),
|
|
)
|
|
assert not scope.covers_multiple
|
|
|
|
def test_a_bare_uri_is_one_unnamed_database(self):
|
|
scope = DatabaseScope.resolve(_config(uri="s3://bucket/one.lancedb"))
|
|
|
|
assert scope.databases == (DatabaseRef(None, "s3://bucket/one.lancedb", None),)
|
|
|
|
def test_nothing_configured_falls_back_to_the_data_directory(self, tmp_path):
|
|
config = AppConfig(storage=StorageConfig(data_dir=tmp_path))
|
|
|
|
scope = DatabaseScope.resolve(config)
|
|
|
|
assert scope.databases == (DatabaseRef.at(tmp_path / "haiku.rag.lancedb"),)
|
|
|
|
def test_the_environment_is_not_consulted(self, monkeypatch, tmp_path):
|
|
"""HAIKU_RAG_DB is honoured by the capability entry point alone. Reading it
|
|
here would change what every other caller opens."""
|
|
monkeypatch.setenv("HAIKU_RAG_DB", "/data/from-the-environment.lancedb")
|
|
config = _config(databases={"alpha": "/data/alpha.lancedb"})
|
|
|
|
scope = DatabaseScope.resolve(config)
|
|
|
|
assert scope.names == ("alpha",)
|
|
|
|
def test_a_path_is_never_reinterpreted_as_a_uri(self):
|
|
"""A caller naming a path means that path. Sending it back through the
|
|
configured-location rules would let a scheme turn it into a URI."""
|
|
scope = DatabaseScope.resolve(
|
|
_config(), database_path="s3://bucket/looks-like-a-uri.lancedb"
|
|
)
|
|
|
|
[ref] = scope.databases
|
|
assert ref.db_path == Path("s3://bucket/looks-like-a-uri.lancedb")
|
|
assert ref.uri == ""
|
|
|
|
def test_a_configured_location_with_a_scheme_is_a_uri(self):
|
|
"""A configured value is a URI or a path depending on its scheme, which is
|
|
what makes it different from a path the caller gave."""
|
|
config = _config(databases={"alpha": "s3://bucket/alpha.lancedb"})
|
|
|
|
[ref] = DatabaseScope.resolve(config).databases
|
|
|
|
assert ref.uri == "s3://bucket/alpha.lancedb"
|
|
assert ref.db_path is None
|
|
|
|
def test_a_database_is_a_uri_or_a_path(self):
|
|
"""Both would silently ignore the path; neither fails later, when the
|
|
connection is derived and there is nothing to open.
|
|
|
|
The message names what it was given: this is a programming error raised
|
|
in the caller's own process, not one an operator or a model ever sees.
|
|
"""
|
|
with pytest.raises(ValueError, match="either a URI or a local path") as both:
|
|
DatabaseRef(None, "s3://bucket/a.lancedb", Path("/data/a.lancedb"))
|
|
assert "s3://bucket/a.lancedb" in str(both.value)
|
|
|
|
with pytest.raises(ValueError, match="either a URI or a local path") as neither:
|
|
DatabaseRef(None, "", None)
|
|
assert "db_path=None" in str(neither.value)
|
|
|
|
def test_a_scope_covers_at_least_one_database(self):
|
|
"""Every resolution reaches a database, and the sessions built from a
|
|
scope have no meaning without one."""
|
|
with pytest.raises(ValueError, match="at least one database"):
|
|
DatabaseScope(())
|
|
|
|
|
|
class TestConnectionDerivation:
|
|
"""Opening one of a set must not disturb the configuration it came from."""
|
|
|
|
def test_a_local_location_becomes_a_path(self):
|
|
config = _config(databases={"alpha": "/data/alpha.lancedb"})
|
|
[ref] = DatabaseScope.resolve(config).databases
|
|
|
|
one, db_path = ref.connection(config)
|
|
|
|
assert db_path == Path("/data/alpha.lancedb")
|
|
assert one.lancedb.uri == ""
|
|
assert one.lancedb.databases == {}
|
|
|
|
def test_a_uri_location_stays_a_uri(self):
|
|
config = _config(databases={"alpha": "s3://bucket/alpha.lancedb"})
|
|
[ref] = DatabaseScope.resolve(config).databases
|
|
|
|
one, db_path = ref.connection(config)
|
|
|
|
assert db_path is None
|
|
assert one.lancedb.uri == "s3://bucket/alpha.lancedb"
|
|
|
|
def test_the_original_configuration_is_untouched(self):
|
|
"""Rewriting it in place is what left downstream code unable to tell a set
|
|
had been named."""
|
|
config = _config(databases={"alpha": "/a.lancedb", "beta": "/b.lancedb"})
|
|
|
|
for ref in DatabaseScope.resolve(config).databases:
|
|
ref.connection(config)
|
|
|
|
assert config.lancedb.databases == {"alpha": "/a.lancedb", "beta": "/b.lancedb"}
|
|
assert config.lancedb.uri == ""
|
|
|
|
def test_each_derived_configuration_is_its_own_copy(self):
|
|
config = _config(databases={"alpha": "/a.lancedb", "beta": "s3://b/b.lancedb"})
|
|
alpha, beta = DatabaseScope.resolve(config).databases
|
|
|
|
one, _ = alpha.connection(config)
|
|
other, _ = beta.connection(config)
|
|
|
|
assert one is not other
|
|
assert one.lancedb.uri == ""
|
|
assert other.lancedb.uri == "s3://b/b.lancedb"
|