public async Task CalculateTax_WhenUnsuccessful_ReturnsError()
{
var taxJar = new TaxJarCalculator();
var res = await taxJar.CalculateTax(MakeInvalidTaxRequest());
Assert.IsFalse(res.success);
Assert.IsNotNull(res.message);
Assert.IsNull(res.tax);
}
public async Task CalculateTax_WhenSuccessful_ReturnsTax()
{
var taxJar = new TaxJarCalculator();
var res = await taxJar.CalculateTax(MakeValidTaxRequest());
Assert.IsTrue(res.success);
Assert.IsTrue(string.IsNullOrEmpty(res.message));
Assert.IsNotNull(res.tax);
Assert.IsTrue(res.tax.AmountToCollect > 0);
}