From df119a82ac984e7ab67cf8eb4e4bf91c2060d4b5 Mon Sep 17 00:00:00 2001
From: Bruno Calou <bruno.calou@loft.com.br>
Date: Sat, 1 Oct 2022 14:37:00 -0300
Subject: [PATCH] test: add dom tests

---
 test/dom/index.ts | 34 ++++++++++++++++++++++++++++++++++
 1 file changed, 34 insertions(+)
 create mode 100644 test/dom/index.ts

diff --git a/test/dom/index.ts b/test/dom/index.ts
new file mode 100644
index 0000000000..e01e6d17c5
--- /dev/null
+++ b/test/dom/index.ts
@@ -0,0 +1,34 @@
+import * as assert from 'assert';
+import { detach } from 'svelte/internal';
+
+describe('dom', () => {
+	describe('detach', () => {
+		describe('when parentNode exists', () => {
+			it('should detach the child from the parent', () => {
+				const parent = document.createElement('div');
+				const child = document.createElement('div');
+				parent.appendChild(child);
+
+				assert.equal(child.parentElement, parent);
+
+				detach(child);
+
+				assert.equal(child.parentElement, null);
+			});
+		});
+		describe('when parentNode does not exist', () => {
+			it('should not throw an exception', () => {
+				const childWithoutParent = document.createElement('div');
+        let error = null;
+
+        try {
+          detach(childWithoutParent);
+        } catch (e) {
+          error = e;
+        }
+
+				assert.equal(error, null);
+			});
+		});
+	});
+});