public function testReset()
 {
     $previousInstance = DefaultCurrencyProvider::getInstance();
     DefaultCurrencyProvider::reset();
     $this->assertInstanceOf(DefaultCurrencyProvider::class, DefaultCurrencyProvider::getInstance());
     $this->assertSame(DefaultCurrencyProvider::getInstance(), DefaultCurrencyProvider::getInstance());
     $this->assertNotSame($previousInstance, DefaultCurrencyProvider::getInstance());
 }