diff options
author | Kirill Rogovoy <[email protected]> | 2021-07-20 21:24:52 +0300 |
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committer | Kirill Rogovoy <[email protected]> | 2021-07-20 21:24:52 +0300 |
commit | 5f4611d65e40eae3ca6191a15f68d69ea5a1c4cb (patch) | |
tree | 273dfc086444533d86d580961c92ba8d14781a67 /app_expo/utils/storage | |
parent | f0bf4e7afdcd8b02a62be45ab3e7d047ed865a79 (diff) |
WIP
Diffstat (limited to 'app_expo/utils/storage')
-rw-r--r-- | app_expo/utils/storage/index.ts | 1 | ||||
-rw-r--r-- | app_expo/utils/storage/storage.test.ts | 39 | ||||
-rw-r--r-- | app_expo/utils/storage/storage.ts | 79 |
3 files changed, 119 insertions, 0 deletions
diff --git a/app_expo/utils/storage/index.ts b/app_expo/utils/storage/index.ts new file mode 100644 index 0000000..69b61ec --- /dev/null +++ b/app_expo/utils/storage/index.ts @@ -0,0 +1 @@ +export * from './storage' 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() +}) diff --git a/app_expo/utils/storage/storage.ts b/app_expo/utils/storage/storage.ts new file mode 100644 index 0000000..659e738 --- /dev/null +++ b/app_expo/utils/storage/storage.ts @@ -0,0 +1,79 @@ +import AsyncStorage from '@react-native-async-storage/async-storage' + +/** + * Loads a string from storage. + * + * @param key The key to fetch. + */ +export async function loadString(key: string): Promise<string | null> { + try { + return await AsyncStorage.getItem(key) + } catch { + // not sure why this would fail... even reading the RN docs I'm unclear + return null + } +} + +/** + * Saves a string to storage. + * + * @param key The key to fetch. + * @param value The value to store. + */ +export async function saveString(key: string, value: string): Promise<boolean> { + try { + await AsyncStorage.setItem(key, value) + return true + } catch { + return false + } +} + +/** + * Loads something from storage and runs it thru JSON.parse. + * + * @param key The key to fetch. + */ +export async function load(key: string): Promise<any | null> { + try { + const almostThere = await AsyncStorage.getItem(key) + return JSON.parse(almostThere) + } catch { + return null + } +} + +/** + * Saves an object to storage. + * + * @param key The key to fetch. + * @param value The value to store. + */ +export async function save(key: string, value: any): Promise<boolean> { + try { + await AsyncStorage.setItem(key, JSON.stringify(value)) + return true + } catch { + return false + } +} + +/** + * Removes something from storage. + * + * @param key The key to kill. + */ +export async function remove(key: string): Promise<void> { + try { + await AsyncStorage.removeItem(key) + } catch {} +} + +/** + * Burn it all to the ground. + */ +export async function clear(): Promise<void> { + try { + await AsyncStorage.clear() + } catch {} +} |