diff --git a/test/runtime/samples/assignment-to-const1/_config.js b/test/runtime/samples/assignment-to-const1/_config.js
new file mode 100644
index 0000000000..2fd0447458
--- /dev/null
+++ b/test/runtime/samples/assignment-to-const1/_config.js
@@ -0,0 +1,3 @@
+export default {
+	html: '<p>2, 1</p>'
+};
diff --git a/test/runtime/samples/assignment-to-const1/main.svelte b/test/runtime/samples/assignment-to-const1/main.svelte
new file mode 100644
index 0000000000..f221249193
--- /dev/null
+++ b/test/runtime/samples/assignment-to-const1/main.svelte
@@ -0,0 +1,6 @@
+<script>
+	const arr = [1, 2];
+	[arr[0], arr[1]] = [arr[1], arr[0]];
+</script>
+
+<p>{arr[0]}, {arr[1]}</p>
diff --git a/test/runtime/samples/assignment-to-const2/_config.js b/test/runtime/samples/assignment-to-const2/_config.js
new file mode 100644
index 0000000000..9802ca2c44
--- /dev/null
+++ b/test/runtime/samples/assignment-to-const2/_config.js
@@ -0,0 +1,3 @@
+export default {
+	html: '<p>[{"a":2},100]</p>'
+};
diff --git a/test/runtime/samples/assignment-to-const2/main.svelte b/test/runtime/samples/assignment-to-const2/main.svelte
new file mode 100644
index 0000000000..c805e4b589
--- /dev/null
+++ b/test/runtime/samples/assignment-to-const2/main.svelte
@@ -0,0 +1,7 @@
+<script>
+	const a = 100;
+	const arr = [{ a: 1 }, 2];
+	[arr[0].a, arr[1] = a] = [arr[1]];
+</script>
+
+<p>{JSON.stringify(arr)}</p>
diff --git a/test/validator/samples/assignment-to-const-8/errors.json b/test/validator/samples/assignment-to-const-8/errors.json
new file mode 100644
index 0000000000..fe51488c70
--- /dev/null
+++ b/test/validator/samples/assignment-to-const-8/errors.json
@@ -0,0 +1 @@
+[]
diff --git a/test/validator/samples/assignment-to-const-8/input.svelte b/test/validator/samples/assignment-to-const-8/input.svelte
new file mode 100644
index 0000000000..8af787f4f0
--- /dev/null
+++ b/test/validator/samples/assignment-to-const-8/input.svelte
@@ -0,0 +1,6 @@
+<script>
+	const arr = [1, 2];
+	[arr[0], arr[1] = arr] = [arr[1], arr[0]];
+</script>
+
+{arr}