Split array_pad() tests and add more edge case tests

Author: nielsdos

ext/standard/tests/array/array_pad.phpt

@@ -13,12 +13,6 @@ var_dump(array_pad(array("", -1, 2.0), 2, array()));
 var_dump(array_pad(array("", -1, 2.0), -3, array()));
 var_dump(array_pad(array("", -1, 2.0), -4, array()));
 
-try {
-    var_dump(array_pad(array("", -1, 2.0), 2000000, 0));
-} catch (\ValueError $e) {
-    echo $e->getMessage() . "\n";
-}
-
 ?>
 --EXPECT--
 array(1) {
@@ -84,4 +78,3 @@ array(4) {
   [3]=>
   float(2)
 }
-array_pad(): Argument #2 ($length) is too large because it results in a padding of 1999997 elements, which is larger than the allowed 1048576 elements

ext/standard/tests/array/array_pad_too_large_padding.phpt

@@ -0,0 +1,20 @@
+--TEST--
+array_pad() with too large padding should fail
+--FILE--
+<?php
+
+function test($length) {
+    try {
+        var_dump(array_pad(array("", -1, 2.0), $length, 0));
+    } catch (\ValueError $e) {
+        echo $e->getMessage() . "\n";
+    }
+}
+
+test(PHP_INT_MIN);
+test(PHP_INT_MAX);
+
+?>
+--EXPECT--
+array_pad(): Argument #2 ($length) must not exceed the maximum allowed array size
+array_pad(): Argument #2 ($length) must not exceed the maximum allowed array size