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Posted to issues@calcite.apache.org by "Mihai Budiu (Jira)" <ji...@apache.org> on 2026/08/25 00:53:00 UTC

[jira] [Created] (CALCITE-7742) Test framework has non-determinstic tests

Mihai Budiu created CALCITE-7742:
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             Summary: Test framework has non-determinstic tests
                 Key: CALCITE-7742
                 URL: https://issues.apache.org/jira/browse/CALCITE-7742
             Project: Calcite
          Issue Type: Bug
          Components: core
    Affects Versions: 1.42.0
            Reporter: Mihai Budiu


Some tests intermittently fail in CI, here's an example output:
{code:java}
FAILURE   0.1sec, org.apache.calcite.rel.rel2sql.RelToSqlConverterRoundTripTest > testCastToChar()
    java.lang.AssertionError:
    Expected: is "SELECT CAST(`product_id` AS CHAR)\nFROM `foodmart`.`product`"
         but: was "SELECT CAST(`product_id` AS CHAR(1))\nFROM `foodmart`.`product`" {code}
Seemingly this is because there is some shared state between concurrent tests, e.g., perhaps a custom type system installed?



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