diff --git a/test/runtime/samples/set-mutated-data/_config.js b/test/runtime/samples/set-mutated-data/_config.js
new file mode 100644
index 0000000000..bae3fab689
--- /dev/null
+++ b/test/runtime/samples/set-mutated-data/_config.js
@@ -0,0 +1,14 @@
+const data = { foo: 0 };
+
+export default {
+	data,
+
+	html: '0',
+
+	test(assert, component, target) {
+		data.foo = 42;
+		component.set(data);
+
+		assert.htmlEqual(target.innerHTML, '42');
+	}
+};
\ No newline at end of file
diff --git a/test/runtime/samples/set-mutated-data/main.html b/test/runtime/samples/set-mutated-data/main.html
new file mode 100644
index 0000000000..24369f73a4
--- /dev/null
+++ b/test/runtime/samples/set-mutated-data/main.html
@@ -0,0 +1 @@
+{{foo}}
\ No newline at end of file