1 files changed, 68 insertions, 0 deletions
diff --git a/ext/date/tests/date_modify_error.phpt b/ext/date/tests/date_modify_error.phpt
new file mode 100644
index 0000000..ac727f1
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+++ b/ext/date/tests/date_modify_error.phpt
@@ -0,0 +1,68 @@
+--TEST--
+Test date_modify() function : error conditions 
+--FILE--
+<?php
+/* Prototype  : DateTime date_modify  ( DateTime $object  , string $modify  )
+ * Description: Alter the timestamp of a DateTime object by incrementing or decrementing in a format accepted by strtotime(). 
+ * Source code: ext/date/php_date.c
+ * Alias to functions: public DateTime DateTime::modify()
+ */
+
+//Set the default time zone 
+date_default_timezone_set("Europe/London");
+
+echo "*** Testing date_modify() : error conditions ***\n";
+
+echo "\n-- Testing date_modify() function with zero arguments --\n";
+var_dump( date_modify() );
+
+// Create a date object
+$datetime = date_create("2009-01-30 19:34:10");
+
+echo "\n-- Testing date_modify() function with less than expected no. of arguments --\n";
+var_dump( date_modify($datetime) );
+
+echo "\n-- Testing date_modify() function with more than expected no. of arguments --\n";
+$modify = "+1 day";
+$extra_arg = 99;
+var_dump( date_modify($datetime, $modify, $extra_arg) );
+
+echo "\n-- Testing date_modify() function with an invalid values for \$object argument --\n";
+$invalid_obj = new stdClass();
+var_dump( date_modify($invalid_obj, $modify) );  
+$invalid_obj = 10;
+var_dump( date_modify($invalid_obj, $modify) );
+$invalid_obj = null;
+var_dump( date_modify($invalid_obj, $modify) );  
+
+?>
+===DONE===
+--EXPECTF--
+*** Testing date_modify() : error conditions ***
+
+-- Testing date_modify() function with zero arguments --
+
+Warning: date_modify() expects exactly 2 parameters, 0 given in %s on line %d
+bool(false)
+
+-- Testing date_modify() function with less than expected no. of arguments --
+
+Warning: date_modify() expects exactly 2 parameters, 1 given in %s on line %d
+bool(false)
+
+-- Testing date_modify() function with more than expected no. of arguments --
+
+Warning: date_modify() expects exactly 2 parameters, 3 given in %s on line %d
+bool(false)
+
+-- Testing date_modify() function with an invalid values for $object argument --
+
+Warning: date_modify() expects parameter 1 to be DateTime, object given in %s on line %d
+bool(false)
+
+Warning: date_modify() expects parameter 1 to be DateTime, integer given in %s on line %d
+bool(false)
+
+Warning: date_modify() expects parameter 1 to be DateTime, null given in %s on line %d
+bool(false)
+===DONE===