Add tests for DOMEntityReference

Author: villfa

ext/dom/tests/DOMDocument_createEntityReference_error1.phpt

@@ -0,0 +1,18 @@
+--TEST--
+DomDocument::createEntityReference() - DOM_INVALID_CHARACTER_ERR raised if name contains an invalid character
+--SKIPIF--
+<?php require_once('skipif.inc'); ?>
+--FILE--
+<?php
+$objDoc = new DomDocument();
+
+try {
+    $objDoc->createEntityReference('!');
+} catch (DOMException $e) {
+    var_dump($e->getCode() === DOM_INVALID_CHARACTER_ERR);
+    echo $e->getMessage();
+}
+?>
+--EXPECT--
+bool(true)
+Invalid Character Error

ext/dom/tests/DOMEntityReference_basic.phpt

@@ -0,0 +1,11 @@
+--TEST--
+DOMEntityReference - read $nodeName property
+--SKIPIF--
+<?php require_once('skipif.inc'); ?>
+--FILE--
+<?php
+$der = new DOMEntityReference('nbsp');
+var_dump($der->nodeName);
+?>
+--EXPECT--
+string(4) "nbsp"

ext/dom/tests/DOMEntityReference_error1.phpt

@@ -0,0 +1,16 @@
+--TEST--
+DOMEntityReference - DOM_INVALID_CHARACTER_ERR raised if name contains an invalid character
+--SKIPIF--
+<?php require_once('skipif.inc'); ?>
+--FILE--
+<?php
+try {
+    new DOMEntityReference('!');
+} catch (DOMException $e) {
+    var_dump($e->getCode() === DOM_INVALID_CHARACTER_ERR);
+    echo $e->getMessage();
+}
+?>
+--EXPECT--
+bool(true)
+Invalid Character Error