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https://issues.apache.org/jira/browse/CASSANDRA-17772?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Josh McKenzie updated CASSANDRA-17772:
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Test and Documentation Plan: No new testing needed; javadoc changes only
Status: Patch Available (was: Open)
> Improve documentation around query methods in CQLTester and GuardrailTester
> ---------------------------------------------------------------------------
>
> Key: CASSANDRA-17772
> URL: https://issues.apache.org/jira/browse/CASSANDRA-17772
> Project: Cassandra
> Issue Type: Improvement
> Components: Feature/Guardrails
> Reporter: Josh McKenzie
> Assignee: Josh McKenzie
> Priority: Normal
>
> Anything that relies on CQLTester.executeFormattedQuery (the
> assertInvalidThrowMessage methods for instance) will use internal client
> state rather than the client state specified for the query, thus nullifying
> any guardrail or systems keyspace permission checks as the
> ClientState.isInternal flag overrides all such permission checking.
> Reference:
> [link|https://github.com/apache/cassandra/blob/trunk/src/java/org/apache/cassandra/service/ClientState.java#L385-L388]
>
> See chain of CQLTester -> ClientState.isInternal here if interested:
> [CQLTester|https://github.com/apache/cassandra/blob/trunk/test/unit/org/apache/cassandra/cql3/CQLTester.java#L1325]
> [QueryProcessor|https://github.com/apache/cassandra/blob/8451acc8d8dcfee20d692d1e70ae11b60d2f004e/src/java/org/apache/cassandra/cql3/QueryProcessor.java#L447]
>
> This is pretty easy to stumble across when testing guardrails as
> GuardrailTester adds a variety of assertFails and assertThrows signatures
> that _do_ respect the client state and thus apply guardrails
> ([example|https://github.com/apache/cassandra/blob/trunk/test/unit/org/apache/cassandra/db/guardrails/GuardrailTester.java#L271])
>
> We should add documentation to the method calls in CQLTester and
> GuardrailTester to reflect this discrepancy as it can easily trip someone up
> writing tests for guardrails.
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