[remove duplicates] update local storage

Author: mike-diamond

src/index.ts

@@ -5,6 +5,7 @@ import { constants } from './utils'
 export * from './utils/enums'
 export { createContract } from './contracts'
 export { default as StakeWiseSDK } from './StakeWiseSDK'
+export { default as localStorage } from './modules/local-storage'
 export { wrapAbortPromise, AbortPromise } from './modules/gql-module'
 
 export {

src/modules/gql-module/utils/getRequestUrl.ts

@@ -1,5 +1,5 @@
 import { constants } from '../../../utils'
-import localStorage from './local-storage'
+import localStorage from '../../local-storage'
 
 
 const sessionErrorUrl = constants.sessionStorageNames.moduleErrorUrl

src/modules/gql-module/utils/saveErrorUrlToSessionStorage.ts

@@ -1,5 +1,5 @@
 import { constants } from '../../../utils'
-import localStorage from './local-storage'
+import localStorage from '../../local-storage'
 
 
 const sessionErrorUrl = constants.sessionStorageNames.moduleErrorUrl

src/modules/gql-module/utils/local-storage/LocalStorage.ts src/modules/local-storage/LocalStorage.ts

@@ -0,0 +1,66 @@
+import MemoryStorage from './MemoryStorage'
+
+
+describe('MemoryStorage', () => {
+
+  it('should write and read values', () => {
+    const storage = new MemoryStorage()
+
+    storage.setItem('key1', 'value1')
+    storage.setItem('key2', 'value2')
+
+    expect(storage.getItem('key1')).toEqual('value1')
+    expect(storage.getItem('key2')).toEqual('value2')
+  })
+
+  it('should overwrite values', () => {
+    const storage = new MemoryStorage()
+
+    storage.setItem('key', 'value1')
+
+    expect(storage.getItem('key')).toEqual('value1')
+
+    storage.setItem('key', 'value2')
+
+    expect(storage.getItem('key')).toEqual('value2')
+  })
+
+  it('should remove and clear', () => {
+    const storage = new MemoryStorage()
+
+    storage.setItem('key1', 'value1')
+    storage.setItem('key2', 'value2')
+    storage.removeItem('key2')
+
+    expect(storage.getItem('key1')).toEqual('value1')
+    expect(storage.getItem('key2')).toBeNull()
+
+    storage.clear()
+
+    expect(storage.length).toEqual(0)
+  })
+
+  it('should return null for undefined values', () => {
+    const storage = new MemoryStorage()
+
+    expect(storage.getItem('key')).toBeNull()
+  })
+
+  it('should return null for undefined keys', () => {
+    const storage = new MemoryStorage()
+
+    expect(storage.key(1)).toBeNull()
+  })
+
+  it('should return correct length', () => {
+    const storage = new MemoryStorage()
+
+    storage.setItem('key1', 'value1')
+
+    expect(storage.length).toEqual(1)
+
+    storage.setItem('key2', 'value2')
+
+    expect(storage.length).toEqual(2)
+  })
+})