tests for isset(), unset()

tests/phpt/array_access/008_isset_unset.php

@@ -0,0 +1,46 @@
+@ok
+<?php
+require_once 'kphp_tester_include.php';
+
+function test_obj() {
+    $obj = new Classes\LoggingLikeArray(["zero", "one", "two", "str_key" => 42]);
+
+    var_dump(isset($obj[0]));
+    var_dump(isset($obj["str_key"]));
+    var_dump(isset($obj["non-existing-key"]));
+
+    unset($obj["str_key"]);
+    unset($obj[0]);
+
+    $keys = $obj->keys();
+    foreach ($keys as $key) {
+        var_dump($obj[$key]);
+    }
+
+    $obj[0] = "new";
+    var_dump(isset($obj[0]));
+}
+
+function test_mixed_in_obj() {
+    $obj = to_mixed(new Classes\LoggingLikeArray(["zero", "one", "two", "str_key" => 42]));
+
+    var_dump(isset($obj[0]));
+    var_dump(isset($obj["str_key"]));
+    var_dump(isset($obj["non-existing-key"]));
+
+    unset($obj["str_key"]);
+    unset($obj[0]);
+
+    if ($obj instanceof Classes\KeysableArrayAccess) {
+        $keys = $obj->keys();
+        foreach ($keys as $key) {
+            var_dump($obj[$key]);
+        }
+    }
+
+    $obj[0] = "new";
+    var_dump(isset($obj[0]));
+}
+
+test_obj();
+test_mixed_in_obj();