Daniel Hensby 3495c0826e Cleanup SapphireTest and time related tests (#6898)
* Test databases now include timestamp for easier debugging

* Use classname::class instead of string literal classnames

* Remove DataObject::get_one() from SapphireTest

* More fixes to ICU DB inconsitency for time formatting

* Correctly restore PHPUnits error handler
2017-05-18 22:01:55 +12:00
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