[release/7.0] Don't re-use XmlSchemaSet - it's not threadsafe. #74564
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I couldn't figure out the best area label to add to this PR. If you have write-permissions please help me learn by adding exactly one area label. |
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@HeathAr are you the right person to approve this 7.0 backport? |
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Oh nevermind. This is only a test change. |
carlossanlop
approved these changes
Aug 25, 2022
ghost
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Backport of #74524 to release/7.0
/cc @karelz @StephenMolloy
Customer Impact
Blocks clean CI - test-only change.
Fixes #74370
These new tests use a few simple collections of schemas grouped in XmlSchemaSet. They were ported from NetFx, where apparently the test environment ran each test one at a time. (Seems that is also the case "on my machine" and in whatever pipelines were run to allow the tests to get checked in.) But XmlSchemaSet is not thread safe, so parallel execution of tests using a static XmlSchemaSet could be problematic. This change builds a new XmlSchemaSet per test instead of re-using a single instance.
Testing
CI
Risk
Low - test only change