1 files changed, 99 insertions, 0 deletions
diff --git a/ext/date/tests/date_time_fractions.phpt b/ext/date/tests/date_time_fractions.phpt
new file mode 100644
index 0000000000..c58ed4f431
--- /dev/null
+++ b/ext/date/tests/date_time_fractions.phpt
@@ -0,0 +1,99 @@
+--TEST--
+Fractions with DateTime objects
+--INI--
+date.timezone=UTC
+--FILE--
+<?php
+/* This will go wrong, once in a million times */
+$ms = date_create()->format('u');
+echo ($ms = 0) ? "microseconds = false\n" : "microseconds = true\n";
+
+/* Normal creation */
+echo date_create( "2016-10-03 12:47:18.819313" )->format( "Y-m-d H:i:s.u" ), "\n\n";
+
+/* With modifications */
+$dt = new DateTimeImmutable( "2016-10-03 12:47:18.819210" );
+echo $dt->modify( "+1 day" )->format( "Y-m-d H:i:s.u" ), "\n";
+
+$dt = new DateTimeImmutable( "2016-10-03 12:47:18.081921" );
+echo $dt->modify( "-3 months" )->format( "Y-m-d H:i:s.u" ), "\n";
+
+echo "\n";
+
+/* These should reset the time (and hence fraction) to 0 */
+$dt = new DateTimeImmutable( "2016-10-03 12:47:18.081921" );
+echo $dt->modify( "yesterday" )->format( "Y-m-d H:i:s.u" ), "\n";
+
+$dt = new DateTimeImmutable( "2016-10-03 12:47:18.081921" );
+echo $dt->modify( "noon" )->format( "Y-m-d H:i:s.u" ), "\n";
+
+$dt = new DateTimeImmutable( "2016-10-03 12:47:18.081921" );
+echo $dt->modify( "10 weekday" )->format( "Y-m-d H:i:s.u" ), "\n";
+
+/* Interval containing fractions */
+
+$dt1 = new DateTimeImmutable( "2016-10-03 13:20:07.103123" );
+$dt2 = new DateTimeImmutable( "2016-10-03 13:20:07.481312" );
+$diff = $dt1->diff( $dt2 );
+
+var_dump( $diff );
+
+$dt0 = $dt1->sub( $diff );
+$dt3 = $dt2->add( $diff );
+$dt4 = $dt3->add( $diff );
+
+echo $dt0->format( "Y-m-d H:i:s.u" ), "\n";
+echo $dt1->format( "Y-m-d H:i:s.u" ), "\n";
+echo $dt2->format( "Y-m-d H:i:s.u" ), "\n";
+echo $dt3->format( "Y-m-d H:i:s.u" ), "\n";
+echo $dt4->format( "Y-m-d H:i:s.u" ), "\n";
+?>
+--EXPECTF--
+microseconds = true
+2016-10-03 12:47:18.819313
+
+2016-10-04 12:47:18.819210
+2016-07-03 12:47:18.081921
+
+2016-10-02 00:00:00.000000
+2016-10-03 12:00:00.000000
+2016-10-17 00:00:00.000000
+object(DateInterval)#%d (16) {
+  ["y"]=>
+  int(0)
+  ["m"]=>
+  int(0)
+  ["d"]=>
+  int(0)
+  ["h"]=>
+  int(0)
+  ["i"]=>
+  int(0)
+  ["s"]=>
+  int(0)
+  ["f"]=>
+  float(0.378189)
+  ["weekday"]=>
+  int(0)
+  ["weekday_behavior"]=>
+  int(0)
+  ["first_last_day_of"]=>
+  int(0)
+  ["invert"]=>
+  int(0)
+  ["days"]=>
+  int(0)
+  ["special_type"]=>
+  int(0)
+  ["special_amount"]=>
+  int(0)
+  ["have_weekday_relative"]=>
+  int(0)
+  ["have_special_relative"]=>
+  int(0)
+}
+2016-10-03 13:20:06.724934
+2016-10-03 13:20:07.103123
+2016-10-03 13:20:07.481312
+2016-10-03 13:20:07.859501
+2016-10-03 13:20:08.237690