Mithril

Author: mrginglymus

libraries/mithril/src/basic-tests.js

@@ -27,6 +27,7 @@ import {
   ComponentWithDifferentViews,
   ComponentWithProperties,
   ComponentWithImperativeEvent,
+  ComponentWithoutProperties,
   ComponentWithDeclarativeEvent
 } from "./components";
 
@@ -127,6 +128,16 @@ describe("basic support", function() {
       let data = wc.str || wc.getAttribute("str");
       expect(data).to.eql("Mithril");
     });
+
+    it("will not overwrite unwriteable properties", function () {
+      this.weight = 3;
+      m.mount(root, ComponentWithoutProperties());
+      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');
+    });
   });
 
   describe("events", function() {

libraries/mithril/src/components.js

@@ -19,6 +19,7 @@ import 'ce-without-children'
 import 'ce-with-children'
 import 'ce-with-properties'
 import 'ce-with-event'
+import 'ce-without-properties'
 
 import m from 'mithril'
 
@@ -86,6 +87,17 @@ export const ComponentWithProperties = () => ({
     )
 })
 
+export const ComponentWithoutProperties = () => ({
+  view: () =>
+    m('div',
+      m('ce-without-properties#wc', {
+        amethod: 'method',
+        agetter: 'getter',
+        areadonly: 'readonly'
+      })
+    )
+})
+
 export const ComponentWithImperativeEvent = () => {
   let eventHandled = false
 

libraries/vue/src/basic-tests.js

@@ -149,6 +149,7 @@ describe("basic support", function() {
     });
 
     it("will not overwrite unwriteable properties", function () {
+     this.weight = 3;
      const app = createApp(ComponentWithoutProperties);
      app.mount(scratch);
      const wc = scratch.querySelector('#wc');