Merge pull request #620 from cudr/error_page_hooks

Error page lifecycle

test/apps/errors/src/routes/_error.svelte

@@ -1,3 +1,17 @@
+<script>
+	import { onMount, onDestroy } from 'svelte';
+
+	export let status, error = {};
+
+	let mounted = false;
+
+	onMount(() => {
+		mounted = 'success';
+	})
+</script>
+
 <h1>{status}</h1>
 
-<p>{error.message}</p>
+<h2>{mounted}</h2>
+
+<p>{error.message}</p>

test/apps/errors/test.ts

@@ -112,6 +112,17 @@ describe('errors', function() {
 		);
 	});
 
+	it('execute error page hooks', async () => {
+		await page.goto(`${base}/some-throw-page`);
+		await start();
+		await wait(50);
+
+		assert.equal(
+			await page.$eval('h2', node => node.textContent),
+			'success'
+		);
+	})
+
 	it('does not serve error page for async non-page error', async () => {
 		await page.goto(`${base}/async-throw.json`);
 
@@ -134,4 +145,4 @@ describe('errors', function() {
 		await wait(50);
 		assert.equal(await title(), 'No error here');
 	});
-});
+});