1 files changed, 45 insertions, 0 deletions
diff --git a/packages/webapi/test/storage.js b/packages/webapi/test/storage.js
new file mode 100644
index 000000000..b8a6d2354
--- /dev/null
+++ b/packages/webapi/test/storage.js
@@ -0,0 +1,45 @@
+import { assert, test } from '../run/test.setup.js'
+import { polyfill } from '../mod.js'
+
+test(() => {
+	return [
+		{
+			name: 'Includes Storage functionality',
+			test() {
+				const target = {}
+
+				polyfill(target)
+	
+				assert.equal(Reflect.has(target, 'Storage'), true)
+				assert.equal(Reflect.has(target, 'localStorage'), true)
+				assert.equal(typeof target.Storage, 'function')
+				assert.equal(typeof target.localStorage, 'object')
+			},
+		},
+		{
+			name: 'Supports Storage methods',
+			test() {
+				const target = {}
+
+				polyfill(target)
+
+				assert.equal(target.localStorage.setItem('hello', 'world'), undefined)
+				assert.equal(target.localStorage.getItem('hello'), 'world')
+				assert.equal(target.localStorage.key(0), 'hello')
+				assert.equal(target.localStorage.key(1), null)
+				assert.equal(target.localStorage.length, 1)
+				assert.equal(target.localStorage.setItem('world', 'hello'), undefined)
+				assert.equal(target.localStorage.key(1), 'world')
+				assert.equal(target.localStorage.key(2), null)
+				assert.equal(target.localStorage.length, 2)
+				assert.equal(target.localStorage.removeItem('hello'), undefined)
+				assert.equal(target.localStorage.key(0), 'world')
+				assert.equal(target.localStorage.key(1), null)
+				assert.equal(target.localStorage.length, 1)
+				assert.equal(target.localStorage.clear(), undefined)
+				assert.equal(target.localStorage.key(0), null)
+				assert.equal(target.localStorage.length, 0)
+			},
+		},
+	]
+})