Add tests with wrong output

Author: nielsdos

ext/dom/tests/replaceWith_no_parent.phpt

@@ -0,0 +1,28 @@
+--TEST--
+replaceWith() without a parent
+--EXTENSIONS--
+dom
+--FILE--
+<?php
+$doc = new DOMDocument;
+$doc->loadXML(<<<XML
+<?xml version="1.0"?>
+<container>
+    <child/>
+</container>
+XML);
+
+$container = $doc->documentElement;
+$child = $container->firstElementChild;
+
+$test = $doc->createElement('foo');
+$test->replaceWith($child);
+echo $doc->saveXML();
+echo $doc->saveXML($test);
+?>
+--EXPECTF--
+Fatal error: Uncaught DOMException: Not Found Error in %s:%d
+Stack trace:
+#0 %s(%d): DOMElement->replaceWith(Object(DOMElement))
+#1 {main}
+  thrown in %s on line %d

ext/dom/tests/replaceWith_non_viable_next_sibling.phpt

@@ -0,0 +1,45 @@
+--TEST--
+replaceWith() with a non-variable next sibling
+--EXTENSIONS--
+dom
+--FILE--
+<?php
+$doc = new DOMDocument;
+$doc->loadXML(<<<XML
+<?xml version="1.0"?>
+<container>
+    <child>
+        <alone/>
+    </child>
+</container>
+XML);
+
+$container = $doc->documentElement;
+$child = $container->firstElementChild;
+$alone = $child->firstElementChild;
+
+$child->after($alone);
+echo $doc->saveXML();
+$child->replaceWith($alone);
+echo $doc->saveXML();
+?>
+--EXPECT--
+<?xml version="1.0"?>
+<container>
+    <child>
+        
+    </child><alone/>
+</container>
+<?xml version="1.0"?>
+<container>
+    
+</container>
+
+=================================================================
+==1151863==ERROR: LeakSanitizer: detected memory leaks
+
+Direct leak of 120 byte(s) in 1 object(s) allocated from:
+    #0 0x7fc122ee1369 in __interceptor_malloc /usr/src/debug/gcc/gcc/libsanitizer/asan/asan_malloc_linux.cpp:69
+    #1 0x7fc122d02bd0 in xmlNewNodeEatName /home/niels/libxml2/tree.c:2317
+
+SUMMARY: AddressSanitizer: 120 byte(s) leaked in 1 allocation(s).