public void ShouldCalculateTaxAndPerist()
{
var calculatedTaxEntity = new CalculatedTaxEntity("PostalCode", 5m);
var calculatedTax = fixture.Create <decimal>();
mocktaxTypeCalculatorStrategy.Setup(x => x.Invoke(It.IsAny <string>())).Returns(mockTaxTypeCalculator.Object);
mockTaxTypeCalculator.Setup(x => x.CalulateTax(It.IsAny <decimal>())).Returns(calculatedTax);
mockCalculatedTaxRepostiory.Setup(x => x.Add(It.IsAny <CalculatedTaxEntity>())).Returns(calculatedTaxEntity);
taxCalculationService = new TaxCalculationService(mocktaxTypeCalculatorStrategy.Object, mockCalculatedTaxRepostiory.Object);
taxCalculationService.CalculateTax(calculatedTaxEntity);
mockCalculatedTaxRepostiory.Verify(x => x.Add(It.Is <CalculatedTaxEntity>(y => y.CalculatedTaxAmount == calculatedTax)), Times.Once);
}
