92 lines
3.4 KiB
Python
92 lines
3.4 KiB
Python
import pytest
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from harlequin.catalog import InteractiveCatalogItem
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from harlequin_postgres.adapter import HarlequinPostgresConnection
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from harlequin_postgres.catalog import (
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ColumnCatalogItem,
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DatabaseCatalogItem,
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RelationCatalogItem,
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SchemaCatalogItem,
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TableCatalogItem,
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ViewCatalogItem,
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)
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@pytest.fixture
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def connection_with_objects(
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connection: HarlequinPostgresConnection,
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) -> HarlequinPostgresConnection:
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connection.execute("create schema one")
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connection.execute("create table one.foo as select 1 as a, '2' as b")
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connection.execute("create table one.bar as select 1 as a, '2' as b")
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connection.execute("create table one.baz as select 1 as a, '2' as b")
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connection.execute("create schema two")
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connection.execute("create view two.qux as select * from one.foo")
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connection.execute("create schema three")
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# the original connection fixture will clean this up.
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return connection
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def test_catalog(connection_with_objects: HarlequinPostgresConnection) -> None:
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conn = connection_with_objects
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catalog = conn.get_catalog()
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# at least two databases, postgres and test
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assert len(catalog.items) >= 2
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[test_db_item] = filter(lambda item: item.label == "test", catalog.items)
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assert isinstance(test_db_item, InteractiveCatalogItem)
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assert isinstance(test_db_item, DatabaseCatalogItem)
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assert not test_db_item.children
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assert not test_db_item.loaded
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schema_items = test_db_item.fetch_children()
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assert all(isinstance(item, SchemaCatalogItem) for item in schema_items)
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[schema_one_item] = filter(lambda item: item.label == "one", schema_items)
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assert isinstance(schema_one_item, SchemaCatalogItem)
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assert not schema_one_item.children
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assert not schema_one_item.loaded
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table_items = schema_one_item.fetch_children()
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assert all(isinstance(item, RelationCatalogItem) for item in table_items)
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[foo_item] = filter(lambda item: item.label == "foo", table_items)
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assert isinstance(foo_item, TableCatalogItem)
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assert not foo_item.children
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assert not foo_item.loaded
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foo_column_items = foo_item.fetch_children()
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assert all(isinstance(item, ColumnCatalogItem) for item in foo_column_items)
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[schema_two_item] = filter(lambda item: item.label == "two", schema_items)
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assert isinstance(schema_two_item, SchemaCatalogItem)
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assert not schema_two_item.children
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assert not schema_two_item.loaded
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view_items = schema_two_item.fetch_children()
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assert all(isinstance(item, ViewCatalogItem) for item in view_items)
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[qux_item] = filter(lambda item: item.label == "qux", view_items)
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assert isinstance(qux_item, ViewCatalogItem)
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assert not qux_item.children
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assert not qux_item.loaded
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qux_column_items = qux_item.fetch_children()
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assert all(isinstance(item, ColumnCatalogItem) for item in qux_column_items)
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assert [item.label for item in foo_column_items] == [
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item.label for item in qux_column_items
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]
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# ensure calling fetch_children on cols doesn't raise
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children_items = foo_column_items[0].fetch_children()
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assert not children_items
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[schema_three_item] = filter(lambda item: item.label == "three", schema_items)
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assert isinstance(schema_two_item, SchemaCatalogItem)
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assert not schema_two_item.children
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assert not schema_two_item.loaded
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three_children = schema_three_item.fetch_children()
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assert not three_children
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