public function testFormat()
{
$amount = 5.6;
$precision = \Magento\Framework\Pricing\PriceCurrencyInterface::DEFAULT_PRECISION;
$includeContainer = false;
$store = null;
$formattedAmount = '5.6 grn';
$currency = $this->getCurrentCurrencyMock();
$currency->expects($this->once())->method('formatPrecision')->with($amount, $precision, [], $includeContainer)->will($this->returnValue($formattedAmount));
$this->assertEquals($formattedAmount, $this->priceCurrency->format($amount, $includeContainer, $precision, $store, $currency));
}
