fix some binding tests

src/compile/render-dom/wrappers/Element/Binding.ts

@@ -153,7 +153,8 @@ export default class BindingWrapper {
 		return {
 			name: this.node.name,
 			object: name,
-			handler: handler,
+			handler,
+			snippet,
 			usesContext: handler.usesContext,
 			updateDom: updateDom,
 			initialUpdate: initialUpdate,
@@ -281,7 +282,8 @@ function getValueFromDom(
 	if (name === 'group') {
 		const bindingGroup = getBindingGroup(renderer, binding.node.expression.node);
 		if (type === 'checkbox') {
-			return `@getBindingGroupValue(#component.$$bindingGroups[${bindingGroup}])`;
+			renderer.component.init_uses_self = true;
+			return `@getBindingGroupValue($$self.$$bindingGroups[${bindingGroup}])`;
 		}
 
 		return `this.__value`;

src/compile/render-dom/wrappers/Element/index.ts

@@ -540,15 +540,15 @@ export default class ElementWrapper extends Wrapper {
 				}
 			});
 
-			const allInitialStateIsDefined = group.bindings
-				.map(binding => `'${binding.object}' in ctx`)
-				.join(' && ');
+			const someInitialStateIsUndefined = group.bindings
+				.map(binding => `${binding.snippet} === void 0`)
+				.join(' || ');
 
 			if (this.node.name === 'select' || group.bindings.find(binding => binding.name === 'indeterminate' || binding.isReadOnlyMediaAttribute)) {
 				renderer.hasComplexBindings = true;
 
 				block.builders.hydrate.addLine(
-					`if (!(${allInitialStateIsDefined})) #component.$$root._beforecreate.push(${handler});`
+					`if (${someInitialStateIsUndefined}) @after_render(() => ${callee}.call(${this.var}));`
 				);
 			}
 
@@ -556,7 +556,7 @@ export default class ElementWrapper extends Wrapper {
 				renderer.hasComplexBindings = true;
 
 				block.builders.hydrate.addLine(
-					`#component.$$root._beforecreate.push(${handler});`
+					`@after_render(() => ${callee}.call(${this.var}));`
 				);
 			}
 		});

test/runtime/samples/binding-indirect-computed/main.html

@@ -14,7 +14,7 @@
 </script>
 
 <select bind:value={selected.letter}>
-	{#each uppercase as letter}
+	{#each uppercase() as letter}
 		<option value="{letter}">{letter}</option>
 	{/each}
 </select>

test/runtime/samples/binding-input-radio-group/_config.js

@@ -5,6 +5,8 @@ const values = [
 ];
 
 export default {
+	solo: 1,
+
 	props: {
 		values,
 		selected: values[1]
@@ -25,7 +27,7 @@ export default {
 
 		<p>Beta</p>`,
 
-	test ( assert, component, target, window ) {
+	async test(assert, component, target, window) {
 		const inputs = target.querySelectorAll('input');
 		assert.equal(inputs[0].checked, false);
 		assert.equal(inputs[1].checked, true);
@@ -34,7 +36,7 @@ export default {
 		const event = new window.Event('change');
 
 		inputs[0].checked = true;
-		inputs[0].dispatchEvent( event );
+		await inputs[0].dispatchEvent(event);
 
 		assert.htmlEqual(target.innerHTML, `
 			<label>