fixed dom filtering tests

src/Type/YArray.js

@@ -178,7 +178,6 @@ export default class YArray extends Type {
     } else {
       apply()
     }
-    return content
   }
   insert (pos, content) {
     let left = null

src/Type/y-xml/YXmlElement.js

@@ -67,10 +67,20 @@ export default class YXmlElement extends YXmlFragment {
     }
     super._integrate(y)
   }
+  /**
+   * Returns the string representation of the XML document.
+   * The attributes are ordered by attribute-name, so you can easily use this
+   * method to compare YXmlElements
+   */
   toString () {
     const attrs = this.getAttributes()
     const stringBuilder = []
+    const keys = []
     for (let key in attrs) {
+      keys.push(key)
+    }
+    keys.sort()
+    for (let key in keys) {
       stringBuilder.push(key + '="' + attrs[key] + '"')
     }
     const nodeName = this.nodeName.toLocaleLowerCase()

src/Type/y-xml/YXmlFragment.js

@@ -85,12 +85,13 @@ export default class YXmlFragment extends YArray {
   }
   insertDomElementsAfter (prev, doms) {
     const types = domToYXml(this, doms)
-    return this.insertAfter(prev, types)
+    this.insertAfter(prev, types)
+    return types
   }
   insertDomElements (pos, doms) {
     const types = domToYXml(this, doms)
     this.insert(pos, types)
-    return types.length
+    return types
   }
   bindToDom (dom) {
     if (this._dom != null) {

src/Type/y-xml/utils.js

@@ -61,6 +61,15 @@ function iterateUntilUndeleted (item) {
   return item
 }
 
+function _insertNodeHelper (yxml, prevExpectedNode, child) {
+  let insertedNodes = yxml.insertDomElementsAfter(prevExpectedNode, [child])
+  if (insertedNodes.length > 0) {
+    return insertedNodes[0]
+  } else {
+    return prevExpectedNode
+  }
+}
+
 /*
  * 1. Check if any of the nodes was deleted
  * 2. Iterate over the children.
@@ -107,7 +116,7 @@ export function applyChangesFromDom (yxml) {
           } else {
             childYXml._delete(y)
           }
-          prevExpectedNode = yxml.insertDomElementsAfter(prevExpectedNode, [child])[0]
+          prevExpectedNode = _insertNodeHelper(yxml, prevExpectedNode, child)
         } else {
           prevExpectedNode = expectedNode
           expectedNode = iterateUntilUndeleted(expectedNode._right)
@@ -115,11 +124,11 @@ export function applyChangesFromDom (yxml) {
         // if this is the expected node id, just continue
       } else {
         // 2.2 fill _conten with child nodes
-        prevExpectedNode = yxml.insertDomElementsAfter(prevExpectedNode, [child])[0]
+        prevExpectedNode = _insertNodeHelper(yxml, prevExpectedNode, child)
       }
     } else {
       // 2.1 A new node was found
-      prevExpectedNode = yxml.insertDomElementsAfter(prevExpectedNode, [child])[0]
+      prevExpectedNode = _insertNodeHelper(yxml, prevExpectedNode, child)
     }
   }
 }