Fix return value of wrapAll() when count() is 0

CHANGELOG.md

@@ -1,9 +1,10 @@
 QueryPath Changelog
 ===========================
 
-# 3.2.4
+# 4.0.0
 
 - Reverse logic in DomQuery::html5() so that DomQuery::html5() returns the content of the current match, and DomQuery::html5('') replaces the content of the current matches. This matches the existing logic used in DomQuery::html().
+- Return DOMQuery object if QueryMutators::wrapAll() has no matches (instead of null). This aligns the method with the Docblock return type.
 
 # 3.2.3
 

src/Helpers/QueryMutators.php

@@ -453,7 +453,7 @@ public function wrap($markup): Query
 	public function wrapAll($markup)
 	{
 		if ($this->matches->count() === 0) {
-			return;
+			return $this;
 		}
 
 		$data = $this->prepareInsert($markup);

tests/QueryPath/DOMQueryTest.php

@@ -1034,6 +1034,9 @@ public function testWrapAll()
 			'li'
 		)->wrapAll('<test class="testWrap"><inside><center/></inside></test>')->get(0)->ownerDocument->saveXML();
 		$this->assertEquals(5, qp($xml, '.testWrap > inside > center > li')->count());
+
+		// verify wrapAll() returns DomQuery object is no matches
+		$this->assertInstanceOf(DOMQuery::class, qp($file, '#non-existing-selector')->wrapAll(''));
 	}
 
 	public function testWrapInner()