1 files changed, 39 insertions, 0 deletions
diff --git a/app_expo/utils/storage/storage.test.ts b/app_expo/utils/storage/storage.test.ts
new file mode 100644
index 0000000..bb241c0
--- /dev/null
+++ b/app_expo/utils/storage/storage.test.ts
@@ -0,0 +1,39 @@
+import AsyncStorage from '@react-native-async-storage/async-storage'
+import { load, loadString, save, saveString, clear, remove } from './storage'
+
+// fixtures
+const VALUE_OBJECT = { x: 1 }
+const VALUE_STRING = JSON.stringify(VALUE_OBJECT)
+
+beforeEach(() => (AsyncStorage.getItem as jest.Mock).mockReturnValue(Promise.resolve(VALUE_STRING)))
+afterEach(() => jest.clearAllMocks())
+
+test('load', async () => {
+  const value = await load('something')
+  expect(value).toEqual(JSON.parse(VALUE_STRING))
+})
+
+test('loadString', async () => {
+  const value = await loadString('something')
+  expect(value).toEqual(VALUE_STRING)
+})
+
+test('save', async () => {
+  await save('something', VALUE_OBJECT)
+  expect(AsyncStorage.setItem).toHaveBeenCalledWith('something', VALUE_STRING)
+})
+
+test('saveString', async () => {
+  await saveString('something', VALUE_STRING)
+  expect(AsyncStorage.setItem).toHaveBeenCalledWith('something', VALUE_STRING)
+})
+
+test('remove', async () => {
+  await remove('something')
+  expect(AsyncStorage.removeItem).toHaveBeenCalledWith('something')
+})
+
+test('clear', async () => {
+  await clear()
+  expect(AsyncStorage.clear).toHaveBeenCalledWith()
+})