mirror of https://github.com/apache/superset.git
244 lines
8.4 KiB
Python
244 lines
8.4 KiB
Python
# Licensed to the Apache Software Foundation (ASF) under one
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# or more contributor license agreements. See the NOTICE file
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# distributed with this work for additional information
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# regarding copyright ownership. The ASF licenses this file
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# to you under the Apache License, Version 2.0 (the
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# "License"); you may not use this file except in compliance
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# with the License. You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing,
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# software distributed under the License is distributed on an
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# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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# KIND, either express or implied. See the License for the
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# specific language governing permissions and limitations
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# under the License.
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# isort:skip_file
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"""Unit tests for Sql Lab"""
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import unittest
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from unittest.mock import MagicMock, patch
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import pytest
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from pyhive.exc import DatabaseError
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from superset import app
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from superset.sql_validators import SQLValidationAnnotation
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from superset.sql_validators.base import BaseSQLValidator
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from superset.sql_validators.postgres import PostgreSQLValidator
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from superset.sql_validators.presto_db import (
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PrestoDBSQLValidator,
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PrestoSQLValidationError,
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)
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from superset.utils.core import get_example_database
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from .base_tests import SupersetTestCase
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PRESTO_TEST_FEATURE_FLAGS = {
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"SQL_VALIDATORS_BY_ENGINE": {
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"presto": "PrestoDBSQLValidator",
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"sqlite": "PrestoDBSQLValidator",
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"postgresql": "PrestoDBSQLValidator",
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"mysql": "PrestoDBSQLValidator",
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}
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}
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class TestSqlValidatorEndpoint(SupersetTestCase):
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"""Testing for Sql Lab querytext validation endpoint"""
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def tearDown(self):
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self.logout()
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def test_validate_sql_endpoint_noconfig(self):
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"""Assert that validate_sql_json errors out when no validators are
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configured for any db"""
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self.login("admin")
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app.config["SQL_VALIDATORS_BY_ENGINE"] = {}
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resp = self.validate_sql(
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"SELECT * FROM birth_names", client_id="1", raise_on_error=False
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)
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self.assertIn("error", resp)
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self.assertIn("no SQL validator is configured", resp["error"])
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@patch("superset.views.core.get_validator_by_name")
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@patch.dict(
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"superset.extensions.feature_flag_manager._feature_flags",
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PRESTO_TEST_FEATURE_FLAGS,
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clear=True,
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)
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def test_validate_sql_endpoint_mocked(self, get_validator_by_name):
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"""Assert that, with a mocked validator, annotations make it back out
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from the validate_sql_json endpoint as a list of json dictionaries"""
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if get_example_database().backend == "hive":
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pytest.skip("Hive validator is not implemented")
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self.login("admin")
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validator = MagicMock()
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get_validator_by_name.return_value = validator
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validator.validate.return_value = [
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SQLValidationAnnotation(
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message="I don't know what I expected, but it wasn't this",
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line_number=4,
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start_column=12,
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end_column=42,
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)
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]
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resp = self.validate_sql(
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"SELECT * FROM somewhere_over_the_rainbow",
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client_id="1",
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raise_on_error=False,
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)
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self.assertEqual(1, len(resp))
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self.assertIn("expected,", resp[0]["message"])
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@patch("superset.views.core.get_validator_by_name")
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@patch.dict(
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"superset.extensions.feature_flag_manager._feature_flags",
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PRESTO_TEST_FEATURE_FLAGS,
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clear=True,
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)
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def test_validate_sql_endpoint_failure(self, get_validator_by_name):
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"""Assert that validate_sql_json errors out when the selected validator
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raises an unexpected exception"""
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self.login("admin")
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validator = MagicMock()
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get_validator_by_name.return_value = validator
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validator.validate.side_effect = Exception("Kaboom!")
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resp = self.validate_sql(
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"SELECT * FROM birth_names", client_id="1", raise_on_error=False
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)
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# TODO(bkyryliuk): properly handle hive error
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if get_example_database().backend == "hive":
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assert resp["error"] == "no SQL validator is configured for hive"
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else:
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self.assertIn("error", resp)
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self.assertIn("Kaboom!", resp["error"])
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class TestBaseValidator(SupersetTestCase):
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"""Testing for the base sql validator"""
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def setUp(self):
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self.validator = BaseSQLValidator
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def test_validator_excepts(self):
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with self.assertRaises(NotImplementedError):
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self.validator.validate(None, None, None)
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class TestPrestoValidator(SupersetTestCase):
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"""Testing for the prestodb sql validator"""
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def setUp(self):
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self.validator = PrestoDBSQLValidator
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self.database = MagicMock()
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self.database_engine = self.database.get_sqla_engine.return_value
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self.database_conn = self.database_engine.raw_connection.return_value
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self.database_cursor = self.database_conn.cursor.return_value
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self.database_cursor.poll.return_value = None
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def tearDown(self):
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self.logout()
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PRESTO_ERROR_TEMPLATE = {
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"errorLocation": {"lineNumber": 10, "columnNumber": 20},
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"message": "your query isn't how I like it",
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}
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@patch("superset.sql_validators.presto_db.g")
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def test_validator_success(self, flask_g):
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flask_g.user.username = "nobody"
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sql = "SELECT 1 FROM default.notarealtable"
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schema = "default"
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errors = self.validator.validate(sql, schema, self.database)
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self.assertEqual([], errors)
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@patch("superset.sql_validators.presto_db.g")
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def test_validator_db_error(self, flask_g):
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flask_g.user.username = "nobody"
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sql = "SELECT 1 FROM default.notarealtable"
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schema = "default"
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fetch_fn = self.database.db_engine_spec.fetch_data
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fetch_fn.side_effect = DatabaseError("dummy db error")
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with self.assertRaises(PrestoSQLValidationError):
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self.validator.validate(sql, schema, self.database)
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@patch("superset.sql_validators.presto_db.g")
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def test_validator_unexpected_error(self, flask_g):
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flask_g.user.username = "nobody"
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sql = "SELECT 1 FROM default.notarealtable"
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schema = "default"
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fetch_fn = self.database.db_engine_spec.fetch_data
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fetch_fn.side_effect = Exception("a mysterious failure")
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with self.assertRaises(Exception):
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self.validator.validate(sql, schema, self.database)
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@patch("superset.sql_validators.presto_db.g")
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def test_validator_query_error(self, flask_g):
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flask_g.user.username = "nobody"
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sql = "SELECT 1 FROM default.notarealtable"
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schema = "default"
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fetch_fn = self.database.db_engine_spec.fetch_data
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fetch_fn.side_effect = DatabaseError(self.PRESTO_ERROR_TEMPLATE)
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errors = self.validator.validate(sql, schema, self.database)
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self.assertEqual(1, len(errors))
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def test_validate_sql_endpoint(self):
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self.login("admin")
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# NB this is effectively an integration test -- when there's a default
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# validator for sqlite, this test will fail because the validator
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# will no longer error out.
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resp = self.validate_sql(
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"SELECT * FROM birth_names", client_id="1", raise_on_error=False
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)
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self.assertIn("error", resp)
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self.assertIn("no SQL validator is configured", resp["error"])
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class TestPostgreSQLValidator(SupersetTestCase):
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def test_valid_syntax(self):
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if get_example_database().backend != "postgresql":
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return
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mock_database = MagicMock()
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annotations = PostgreSQLValidator.validate(
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sql='SELECT 1, "col" FROM "table"', schema="", database=mock_database
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)
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assert annotations == []
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def test_invalid_syntax(self):
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if get_example_database().backend != "postgresql":
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return
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mock_database = MagicMock()
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annotations = PostgreSQLValidator.validate(
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sql='SELECT 1, "col"\nFROOM "table"', schema="", database=mock_database
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)
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assert len(annotations) == 1
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annotation = annotations[0]
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assert annotation.line_number == 2
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assert annotation.start_column is None
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assert annotation.end_column is None
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assert annotation.message == 'ERROR: syntax error at or near """'
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if __name__ == "__main__":
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unittest.main()
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