diff --git a/web/database/queries/storage-engine-queries.test.js b/web/database/queries/storage-engine-queries.test.js
new file mode 100644
index 000000000..3723b58cb
--- /dev/null
+++ b/web/database/queries/storage-engine-queries.test.js
@@ -0,0 +1,74 @@
+// @flow
+
+import initSqlJs from 'sql.js';
+
+import { setupSQLiteDB } from './db-queries.js';
+import {
+  getPersistStorageItem,
+  removePersistStorageItem,
+  setPersistStorageItem,
+} from './storage-engine-queries.js';
+
+const TEST_KEY = 'redux-persist';
+const TEST_ITEM = '[[{}]]';
+
+describe('redux-persist storage engine queries', () => {
+  let db;
+
+  beforeAll(async () => {
+    const SQL = await initSqlJs();
+    db = new SQL.Database();
+  });
+
+  beforeEach(() => {
+    setupSQLiteDB(db);
+    const query = `
+      INSERT INTO persist_storage (key, item)
+      VALUES ($key, $item)
+    `;
+    const values = {
+      $key: TEST_KEY,
+      $item: TEST_ITEM,
+    };
+    db.exec(query, values);
+  });
+
+  afterEach(() => {
+    db.exec(`DELETE FROM persist_storage`);
+  });
+
+  it('should return the item of an existing key', () => {
+    expect(getPersistStorageItem(db, TEST_KEY)).toBe(TEST_ITEM);
+  });
+
+  it('should return empty string for a non-existing key', () => {
+    const nonExistingKey = 'non_existing_key';
+    expect(getPersistStorageItem(db, nonExistingKey)).toBe('');
+  });
+
+  it('should set the item of an existing key', () => {
+    const newItem = '[[{a:2]]';
+    setPersistStorageItem(db, TEST_KEY, newItem);
+    expect(getPersistStorageItem(db, TEST_KEY)).toBe(newItem);
+  });
+
+  it('should set the item of a non-existing key', () => {
+    const newEntry = 'testEntry';
+    const newData = 'testData';
+    setPersistStorageItem(db, newEntry, newData);
+    expect(getPersistStorageItem(db, newEntry)).toBe(newData);
+    expect(getPersistStorageItem(db, TEST_KEY)).toBe(TEST_ITEM);
+  });
+
+  it('should remove an existing key', () => {
+    removePersistStorageItem(db, TEST_KEY);
+    expect(getPersistStorageItem(db, TEST_KEY)).toBe('');
+  });
+
+  it('should do nothing when removing a non-existing key', () => {
+    const nonExistingName = 'non_existing_name';
+    removePersistStorageItem(db, nonExistingName);
+    expect(getPersistStorageItem(db, nonExistingName)).toBe('');
+    expect(getPersistStorageItem(db, TEST_KEY)).toBe(TEST_ITEM);
+  });
+});