Improve test assertions

[eps1lon]

Cherry-picked from #65058 where this test was originally failing.

Usually, you want to keep your value on the left side of the assertion as complete as possible so that the testing framework can display a rich diff in case the test fails. Comparing booleans would not provide a rich diff. For example, Array.prototype.some on the left side can become expect.arrayContaining() or String.prototype.includes can become expect.stringContaining.

Closes NEXT-3286

[ijjk]

Tests Passed

[ijjk]

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Commit: b951a04