add tests

test/runtime/samples/attribute-boolean-indeterminate/_config.js

@@ -1,8 +1,4 @@
 export default {
-	// This is a bit of a funny one — there's no equivalent attribute,
-	// so it can't be server-rendered
-	skip_if_ssr: true,
-
 	props: {
 		indeterminate: true
 	},

test/runtime/samples/attribute-boolean-inert/_config.js

@@ -0,0 +1,11 @@
+export default {
+	props: {
+		inert: true
+	},
+	test({ assert, target, component }) {
+		const div = target.querySelector('div');
+		assert.ok(div.inert);
+		component.inert = false;
+		assert.ok(!div.inert);
+	}
+};

test/runtime/samples/attribute-boolean-inert/main.svelte

@@ -0,0 +1,5 @@
+<script>
+export let inert;
+</script>
+
+<div {inert}>some div <button>click</button></div>