PHPC-430: Regression tests for Query arg corruption

Author: jmikola

tests/query/bug0430-001.phpt

@@ -0,0 +1,29 @@
+--TEST--
+PHPC-430: Query constructor arguments are modified
+--SKIPIF--
+<?php require __DIR__ . "/../utils/basic-skipif.inc"?>
+--FILE--
+<?php
+require_once __DIR__ . "/../utils/basic.inc";
+
+$filter = [];
+$options = ['sort' => ['x' => 1]];
+$query = new MongoDB\Driver\Query($filter, $options);
+
+var_dump($filter);
+var_dump($options);
+
+?>
+===DONE===
+<?php exit(0); ?>
+--EXPECT--
+array(0) {
+}
+array(1) {
+  ["sort"]=>
+  array(1) {
+    ["x"]=>
+    int(1)
+  }
+}
+===DONE===

tests/query/bug0430-002.phpt

@@ -0,0 +1,39 @@
+--TEST--
+PHPC-430: Query constructor arguments are modified
+--SKIPIF--
+<?php require __DIR__ . "/../utils/basic-skipif.inc"?>
+--FILE--
+<?php
+require_once __DIR__ . "/../utils/basic.inc";
+
+$options = ['sort' => ['x' => 1]];
+
+$optionsCopy = $options;
+$optionsCopy['cursorFlags'] = 0;
+
+$query = new MongoDB\Driver\Query([], $options);
+
+var_dump($options);
+var_dump($optionsCopy);
+
+?>
+===DONE===
+<?php exit(0); ?>
+--EXPECT--
+array(1) {
+  ["sort"]=>
+  array(1) {
+    ["x"]=>
+    int(1)
+  }
+}
+array(2) {
+  ["sort"]=>
+  array(1) {
+    ["x"]=>
+    int(1)
+  }
+  ["cursorFlags"]=>
+  int(0)
+}
+===DONE===

tests/query/bug0430-003.phpt

@@ -0,0 +1,30 @@
+--TEST--
+PHPC-430: Query constructor arguments are modified
+--SKIPIF--
+<?php require __DIR__ . "/../utils/basic-skipif.inc"?>
+--FILE--
+<?php
+require_once __DIR__ . "/../utils/basic.inc";
+
+function buildQuery($filter, $options)
+{
+    $options["cursorFlags"] = 0;
+    return new MongoDB\Driver\Query($filter, $options);
+}
+
+$filter = [];
+$options = ['sort' => []];
+$query = buildQuery($filter, $options);
+
+var_dump($options);
+
+?>
+===DONE===
+<?php exit(0); ?>
+--EXPECT--
+array(1) {
+  ["sort"]=>
+  array(0) {
+  }
+}
+===DONE===