93a2c52338
This patch adds two simple tests for what happens when a user tries to insert a row with one of the key column missing. The first tests confirms that if the column is completely missing, we correctly print an error (this was issue #3665, that was already marked fixed). However, the second test demonstrates that we still have a bug when the key column appears on the command, but with a null value. In this case, instead of failing the insert (as Cassandra does), we silently ignore it. This is the proper behavior for UNSET_VALUE, but not for null. So the second test is marked xfail, and I opened issue #7852 about it. Refs #3665 Refs #7852 Signed-off-by: Nadav Har'El <nyh@scylladb.com> Message-Id: <20201230132350.3463906-1-nyh@scylladb.com>
66 lines
3.0 KiB
Python
66 lines
3.0 KiB
Python
# Copyright 2020 ScyllaDB
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#
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# This file is part of Scylla.
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#
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# Scylla is free software: you can redistribute it and/or modify
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# it under the terms of the GNU Affero General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# Scylla is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU Affero General Public License
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# along with Scylla. If not, see <http://www.gnu.org/licenses/>.
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#############################################################################
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# Tests for finer points of the meaning of "null" in various places
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#############################################################################
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import pytest
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import re
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from cassandra.protocol import SyntaxException, AlreadyExists, InvalidRequest, ConfigurationException, ReadFailure
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from util import unique_name, random_string
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@pytest.fixture(scope="session")
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def table1(cql, test_keyspace):
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table = test_keyspace + "." + unique_name()
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cql.execute(f"CREATE TABLE {table} (p text, c text, v text, primary key (p, c))")
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yield table
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cql.execute("DROP TABLE " + table)
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# An item cannot be inserted without a key. Verify that before we get into
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# the really interesting test below - trying to pass "null" as the value of
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# the key.
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# See also issue #3665.
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def test_insert_missing_key(cql, table1):
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s = random_string()
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# A clustering key is missing. Cassandra uses the message "Some clustering
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# keys are missing: c", and Scylla: "Missing mandatory PRIMARY KEY part c"
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with pytest.raises(InvalidRequest, match=re.compile('missing', re.IGNORECASE)):
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cql.execute(f"INSERT INTO {table1} (p) VALUES ('{s}')")
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# Similarly, a missing partition key
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with pytest.raises(InvalidRequest, match=re.compile('missing', re.IGNORECASE)):
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cql.execute(f"INSERT INTO {table1} (c) VALUES ('{s}')")
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# A null key, like a missing one, is also not allowed.
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# This reproduces issue #7852.
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@pytest.mark.xfail(reason="issue #7852")
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def test_insert_null_key(cql, table1):
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s = random_string()
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with pytest.raises(InvalidRequest, match='null value'):
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cql.execute(f"INSERT INTO {table1} (p,c) VALUES ('{s}', null)")
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with pytest.raises(InvalidRequest, match='null value'):
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cql.execute(f"INSERT INTO {table1} (p,c) VALUES (null, '{s}')")
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# Try the same thing with prepared statement, where a "None" stands for
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# a null. Note that this is completely different from UNSET_VALUE - only
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# with the latter should the insertion be ignored.
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stmt = cql.prepare(f"INSERT INTO {table1} (p,c) VALUES (?, ?)")
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with pytest.raises(InvalidRequest, match='null value'):
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cql.execute(stmt, [s, None])
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with pytest.raises(InvalidRequest, match='null value'):
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cql.execute(stmt, [None, s])
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