diff --git a/test/helpers.js b/test/helpers.js
index 7a04ff0262..7b1f08bb45 100644
--- a/test/helpers.js
+++ b/test/helpers.js
@@ -48,6 +48,8 @@ export function tryToReadFile(file) {
 export const virtualConsole = new jsdom.VirtualConsole();
 const { window } = new jsdom.JSDOM('<main></main>', {virtualConsole});
 global.document = window.document;
+global.getComputedStyle = window.getComputedStyle;
+global.navigator = {userAgent: 'fake'};
 
 export function env() {
 	window._svelteTransitionManager = null;
diff --git a/test/runtime/samples/onupdate-after-concreate-using-bind-offsetWidth/_config.js b/test/runtime/samples/onupdate-after-concreate-using-bind-offsetWidth/_config.js
new file mode 100644
index 0000000000..ff2b87b712
--- /dev/null
+++ b/test/runtime/samples/onupdate-after-concreate-using-bind-offsetWidth/_config.js
@@ -0,0 +1,8 @@
+export default {
+	'skip-ssr': true,
+
+	test(assert, component, target) {
+		assert.ok(component.onstateRanBeforeOncreate);
+		assert.ok(!component.onupdateRanBeforeOncreate);
+	}
+};
diff --git a/test/runtime/samples/onupdate-after-concreate-using-bind-offsetWidth/main.html b/test/runtime/samples/onupdate-after-concreate-using-bind-offsetWidth/main.html
new file mode 100644
index 0000000000..d930bbcbbb
--- /dev/null
+++ b/test/runtime/samples/onupdate-after-concreate-using-bind-offsetWidth/main.html
@@ -0,0 +1,17 @@
+<div bind:offsetWidth=width></div>
+<script>
+	export default {
+		onstate() {
+			this.onstateRan = true;
+		},
+
+		onupdate() {
+			this.onupdateRan = true;
+		},
+
+		oncreate() {
+			this.onstateRanBeforeOncreate = this.onstateRan;
+			this.onupdateRanBeforeOncreate = this.onupdateRan;
+		}
+	};
+</script>