preact

Author: mrginglymus

libraries/preact/src/basic-tests.js

@@ -23,6 +23,7 @@ import {
   ComponentWithChildrenRerender,
   ComponentWithDifferentViews,
   ComponentWithProperties,
+  ComponentWithoutProperties,
   ComponentWithUnregistered,
   ComponentWithImperativeEvent,
   ComponentWithDeclarativeEvent
@@ -113,6 +114,17 @@ describe("basic support", function() {
       expect(data).to.eql("Preact");
     });
 
+    it("will not overwrite unwriteable properties", function () {
+      this.weight = 3;
+      let root = mount(<ComponentWithoutProperties />).getDOMNode();
+      let wc = root.querySelector("#wc");
+      expect(wc.getAttribute('amethod')).to.eql('method');
+      expect(wc.getAttribute('agetter')).to.eql('getter');
+      expect(wc.getAttribute('areadonly')).to.eql('readonly');
+      expect(wc.innerHTML).to.eql('Success');
+    });
+
+
     // it('will set boolean attributes on a Custom Element that has not already been defined and upgraded', function() {
     //   let root = mount(<ComponentWithUnregistered />).getDOMNode();
     //   let wc = root.querySelector('#wc');

libraries/preact/src/components.js

@@ -19,6 +19,7 @@ import { h, render, Component } from 'preact';
 import 'ce-without-children';
 import 'ce-with-children';
 import 'ce-with-properties';
+import 'ce-without-properties';
 import 'ce-with-event';
 
 export class ComponentWithoutChildren extends Component {
@@ -109,6 +110,20 @@ export class ComponentWithProperties extends Component {
   }
 }
 
+export class ComponentWithoutProperties extends Component {
+  render () {
+    return (
+      <div>
+        <ce-without-properties id="wc"
+          amethod={"method"}
+          agetter={"getter"}
+          areadonly={"readonly"}
+        ></ce-without-properties>
+      </div>
+    )
+  }
+}
+
 export class ComponentWithUnregistered extends Component {
   render () {
     const data = {