Committed for Felix De Vliegher, TestFest Task No: 123, Tested on RHEL5, WinXP

diff --git a/ext/date/tests/date_sub_basic.phpt b/ext/date/tests/date_sub_basic.phpt
new file mode 100644 (file)
index 0000000..8ebf02a
--- /dev/null
+++ b/ext/date/tests/date_sub_basic.phpt
@@ -0,0 +1,46 @@
+--TEST--
+Test date_sub() function : basic functionality 
+--CREDITS--
+Felix De Vliegher <felix.devliegher@gmail.com>
+--SKIPIF--
+<?php if (!function_exists('date_sub')) echo "skip: date_sub() function not found!"; ?>
+--INI--
+date.timezone=UTC
+--FILE--
+<?php
+/* Prototype  : void date_sub(DateTime object, DateInterval interval)
+ * Description: Subtracts an interval from the current date in object.
+ * Source code: ext/date/php_date.c
+ * Alias to functions: 
+ */
+
+echo "*** Testing date_sub() : basic functionality ***\n";
+
+// Initialise all required variables
+$startDate = '2008-01-01 12:25';
+$format = 'Y-m-d H:i:s';
+$intervals = array(
+       'P3Y6M4DT12H30M5S',
+       'P0D',
+       'P2DT1M',
+       'P1Y2MT23H43M150S'
+);
+
+$d = new DateTime($startDate);
+var_dump( $d->format($format) );
+
+foreach($intervals as $interval) {
+       date_sub($d, new DateInterval($interval) );
+       var_dump( $d->format($format) );
+}
+
+?>
+===DONE===
+--EXPECTF--
+*** Testing date_sub() : basic functionality ***
+string(19) "2008-01-01 12:25:00"
+string(19) "2004-06-26 23:54:55"
+string(19) "2004-06-26 23:54:55"
+string(19) "2004-06-24 23:53:55"
+string(19) "2003-04-24 00:08:25"
+===DONE===