public void FromString_ValidString_CreatesQuantity(string asString, Type expectedType)
{
// Act
var result = QuantityFactory.FromString(asString);
// Assert
Assert.That(result.GetType(), Is.EqualTo(expectedType));
}
public void FromString_LengthMetricString_CreatesLengthMetric(string asString)
{
// Arrange
var test = QuantityFactory.FromString(asString);
Assert.That(test, Is.Not.Null);
Assert.That(test.QuantityType, Is.EqualTo(QuantityType.Length));
}
public void SubtractDouble_DifferentUnits_ExpectedBehavior(string valueA, double valueB, string expectedOutcome)
{
// Arrange
var quantityA = QuantityFactory.FromString(valueA);
// Act
var actualResult = quantityA - valueB;
// Assert
Assert.That(actualResult.ToString(), Is.EqualTo(expectedOutcome));
}
public void SubtractQuantity_SameUnits_ExpectedResult(string valueA, string valueB, string expectedOutcome)
{
var test = new LengthMetric();
// Arrange
var quantityA = QuantityFactory.FromString(valueA);
var quantityB = QuantityFactory.FromString(valueB);
// Act
var actualResult = (quantityA - quantityB).ToString();
// Assert
Assert.That(actualResult, Is.EqualTo(expectedOutcome));
}
public void FromString_InvalidString_ThrowsException()
{
// Act and assert
Assert.Throws <ArgumentException>(() => QuantityFactory.FromString("1 kg"));
}
public void FromString_UnknownUnit_ThrowsException()
{
Assert.Throws <ArgumentException>(() => QuantityFactory.FromString("1 FdL"));
}
