diff --git a/test/helpers.js b/test/helpers.js
index 514d084698..e0c4c980ee 100644
--- a/test/helpers.js
+++ b/test/helpers.js
@@ -49,6 +49,8 @@ virtualConsole.sendTo(console);
 
 global.window = new jsdom.JSDOM('<main></main>', {virtualConsole}).window;
 global.document = window.document;
+global.navigator = window.navigator;
+global.getComputedStyle = window.getComputedStyle;
 global.requestAnimationFrame = null; // placeholder, filled in using set_raf
 
 // add missing ecmascript globals to window
@@ -57,7 +59,6 @@ for (const key of Object.getOwnPropertyNames(global)) {
 }
 
 export function env() {
-	window._svelteTransitionManager = null;
 	window.document.title = '';
 	window.document.body.innerHTML = '<main></main>';
 
diff --git a/test/runtime/samples/component-slot-binding-dimensions-destroys-cleanly/Nested.html b/test/runtime/samples/component-slot-binding-dimensions-destroys-cleanly/Nested.html
deleted file mode 100644
index 6ddd61d4d1..0000000000
--- a/test/runtime/samples/component-slot-binding-dimensions-destroys-cleanly/Nested.html
+++ /dev/null
@@ -1,3 +0,0 @@
-<p bind:clientHeight>
-	<slot/>
-</p>
diff --git a/test/runtime/samples/component-slot-binding-dimensions-destroys-cleanly/Nested.svelte b/test/runtime/samples/component-slot-binding-dimensions-destroys-cleanly/Nested.svelte
new file mode 100644
index 0000000000..68c17cbbe7
--- /dev/null
+++ b/test/runtime/samples/component-slot-binding-dimensions-destroys-cleanly/Nested.svelte
@@ -0,0 +1,7 @@
+<script>
+	let clientHeight;
+</script>
+
+<p bind:clientHeight>
+	<slot/>
+</p>
diff --git a/test/runtime/samples/component-slot-binding-dimensions-destroys-cleanly/main.html b/test/runtime/samples/component-slot-binding-dimensions-destroys-cleanly/main.html
deleted file mode 100644
index 3f5fad9363..0000000000
--- a/test/runtime/samples/component-slot-binding-dimensions-destroys-cleanly/main.html
+++ /dev/null
@@ -1,13 +0,0 @@
-<Nested ref:nested>
-	Hello
-</Nested>
-
-<script>
-	import Nested from './Nested.html';
-
-	export default {
-		components: {
-			Nested
-		}
-	};
-</script>
diff --git a/test/runtime/samples/component-slot-binding-dimensions-destroys-cleanly/main.svelte b/test/runtime/samples/component-slot-binding-dimensions-destroys-cleanly/main.svelte
new file mode 100644
index 0000000000..760c9e0356
--- /dev/null
+++ b/test/runtime/samples/component-slot-binding-dimensions-destroys-cleanly/main.svelte
@@ -0,0 +1,7 @@
+<script>
+	import Nested from './Nested.svelte';
+</script>
+
+<Nested>
+	Hello
+</Nested>