public function test_isoOrdinalDate_basics() { $this->assertEquals(DateTimeFormatter::ISO_ORDINAL_DATE()->getChronology(), IsoChronology::INSTANCE()); $this->assertEquals(DateTimeFormatter::ISO_ORDINAL_DATE()->getZone(), null); $this->assertEquals(DateTimeFormatter::ISO_ORDINAL_DATE()->getResolverStyle(), ResolverStyle::STRICT()); }