Snapshot hot swapping

[Zhongliang Wang]

Purposed Syntax, not finalized yet.

import ms from '@manta-style/test-helper';

describe('test', () => {
  beforeAll(async () => {
    await ms.setup('path/to/configFile.ts');
  });
  afterAll(async () => {
    await ms.teardown();
  });
  test('some test', async () => {
    await ms.loadSnapshot('path/to/successSnapshot.json');
    // Test cases for success response...
    await ms.loadSnapshot('path/to/failureSnapshot.json');
    // Test cases for failure response...
  });
});