failing test for #956

test/runtime/samples/transition-js-await-block/_config.js

@@ -0,0 +1,32 @@
+let fulfil;
+let reject;
+
+let promise = new Promise((f, r) => {
+	fulfil = f;
+	reject = r;
+});
+
+export default {
+	data: {
+		promise
+	},
+
+	test(assert, component, target, window, raf) {
+		component.set({ visible: true });
+		let p = target.querySelector('p');
+
+		assert.equal(p.className, 'pending');
+		assert.equal(p.foo, 0);
+
+		raf.tick(50);
+		assert.equal(p.foo, 0);
+
+		fulfil(42);
+		raf.tick(80);
+		let ps = document.querySelectorAll('p');
+		assert.equal(p[0].className, 'pending');
+		assert.equal(p[1].className, 'then');
+		assert.equal(p[0].foo, 20);
+		assert.equal(p[1].foo, 30);
+	},
+};

test/runtime/samples/transition-js-await-block/main.html

@@ -0,0 +1,22 @@
+{#await promise}
+	<p class='pending' transition:foo>loading...</p>
+{:then value}
+	<p class='then' transition:foo>{value}</p>
+{:catch error}
+	<p class='catch' transition:foo>{error.message}</p>
+{/await}
+
+<script>
+	export default {
+		transitions: {
+			foo(node, params) {
+				return {
+					duration: 100,
+					tick: t => {
+						node.foo = t;
+					}
+				};
+			}
+		}
+	};
+</script>