As spotted by stronk7 on windows 32 bits, any db, php 7, core_cache_testcase::test_static_acceleration fails, because windows only have 1/100 microtime resolution so a lot of times it does not advance "enough".

https://bugs.php.net/bug.php?id=64633

3.2rc2
1 failure (same)
http://pastebin.com/8HF8MqYL

As per his recommendation, change those assertGreaterThan() by assertGreaterThanOrEqual() and forget (with a comment explaining it).