1 files changed, 38 insertions, 0 deletions
diff --git a/ext/standard/tests/class_object/interface_exists_error.phpt b/ext/standard/tests/class_object/interface_exists_error.phpt
new file mode 100644
index 0000000..bf95a43
--- /dev/null
+++ b/ext/standard/tests/class_object/interface_exists_error.phpt
@@ -0,0 +1,38 @@
+--TEST--
+Test interface_exists() function : error conditions 
+--FILE--
+<?php
+/* Prototype  : bool interface_exists(string classname [, bool autoload])
+ * Description: Checks if the class exists 
+ * Source code: Zend/zend_builtin_functions.c
+ * Alias to functions: 
+ */
+
+echo "*** Testing interface_exists() : error conditions ***\n";
+
+// Zero arguments
+echo "\n-- Testing interface_exists() function with Zero arguments --\n";
+var_dump( interface_exists() );
+
+//Test interface_exists with one more than the expected number of arguments
+echo "\n-- Testing interface_exists() function with more than expected no. of arguments --\n";
+$classname = 'string_val';
+$autoload = true;
+$extra_arg = 10;
+var_dump( interface_exists($classname, $autoload, $extra_arg) );
+
+?>
+===DONE===
+--EXPECTF--
+*** Testing interface_exists() : error conditions ***
+
+-- Testing interface_exists() function with Zero arguments --
+
+Warning: interface_exists() expects at least 1 parameter, 0 given in %sinterface_exists_error.php on line %d
+NULL
+
+-- Testing interface_exists() function with more than expected no. of arguments --
+
+Warning: interface_exists() expects at most 2 parameters, 3 given in %sinterface_exists_error.php on line %d
+NULL
+===DONE===
+\ No newline at end of file