Added tests for consistency with ceil() and floor() functions

Author: jorgsowa

ext/standard/tests/math/round_modes_ceiling_and_floor.phpt

@@ -0,0 +1,69 @@
+--TEST--
+round() with different rounding modes
+--FILE--
+<?php
+$modes = [
+    PHP_ROUND_CEILING, PHP_ROUND_FLOOR,
+];
+
+$numbers = [
+    2.5,
+    -2.5,
+    3.5,
+    -3.5,
+    7,
+    -7,
+    0.61,
+    0.69,
+    0,
+    -0,
+    1.9999,
+    -1.9999,
+    0.0001,
+    -0.0001,
+];
+
+echo "mode PHP_ROUND_CEILING\n";
+foreach($numbers as $number) {
+    var_dump(ceil($number) === round($number, 0, PHP_ROUND_CEILING));
+}
+
+echo "\n";
+echo "mode PHP_ROUND_FLOOR\n";
+foreach($numbers as $number) {
+    var_dump(floor($number) === round($number, 0, PHP_ROUND_FLOOR));
+}
+
+?>
+--EXPECT--
+mode PHP_ROUND_CEILING
+bool(true)
+bool(true)
+bool(true)
+bool(true)
+bool(true)
+bool(true)
+bool(true)
+bool(true)
+bool(true)
+bool(true)
+bool(true)
+bool(true)
+bool(true)
+bool(true)
+
+mode PHP_ROUND_FLOOR
+bool(true)
+bool(true)
+bool(true)
+bool(true)
+bool(true)
+bool(true)
+bool(true)
+bool(true)
+bool(true)
+bool(true)
+bool(true)
+bool(true)
+bool(true)
+bool(true)