public void Debit_QuantityBiggerThanQuantity_ThrowsException()
{
// Arrange
var sut = new Product("Laptop", 1000);
// Act
// Assert
Assert.Throws <ArgumentOutOfRangeException>(
() => sut.Decrease(2000));
}
public void Debit_ValidQuantity_DecrementQuantity()
{
// Arrange
var sut = new Product("Laptop", 1000);
var expected = 900;
// Act
sut.Decrease(100);
var actual = sut.Quantity;
// Assert
Assert.That(actual, Is.EqualTo(expected));
// the same as :
// Assert.AreEqual(expected, actual, "Check Decrease method impl");
}
public void Debit_QuantityBiggerThanQuantity_ThrowsException_()
{
// Arrange
var sut = new Product("Laptop", 1000);
var expected = 1000;
var actual = 0.0;
// Act
try
{
sut.Decrease(2000);
}
catch (ArgumentOutOfRangeException e)
{
actual = sut.Quantity;
// Assert
Assert.AreEqual("Quantity", e.ParamName);
Assert.AreEqual(expected, actual);
}
}