public void AccumulateKeepsTwiceAddedModifierTwice()
{
var modifiers = Helper.MockManyModifiers(4);
var expected = new CalculatorUpdate(new[] { modifiers[0], modifiers[0] }, new Modifier[0]);
var actual = CalculatorUpdate.Accumulate(expected, CalculatorUpdate.Empty);
Assert.AreEqual(expected, actual);
}
public void AccumulateRemovesWhenRemovedAndAddedInSameUpdate()
{
var modifiers = Helper.MockManyModifiers(4);
var l =
new CalculatorUpdate(new[] { modifiers[0], modifiers[1] }, new[] { modifiers[1], modifiers[2] });
var expected = new CalculatorUpdate(new[] { modifiers[0] }, new[] { modifiers[2] });
var actual = CalculatorUpdate.Accumulate(l, CalculatorUpdate.Empty);
Assert.AreEqual(expected, actual);
}
public void AccumulateRemovesWhenAddedInFirstAndRemovedInSecondUpdate()
{
var modifiers = Helper.MockManyModifiers(4);
var l = new CalculatorUpdate(new[] { modifiers[0] }, new[] { modifiers[2] });
var r = new CalculatorUpdate(new[] { modifiers[1] }, new[] { modifiers[0] });
var expected = new CalculatorUpdate(new[] { modifiers[1] }, new[] { modifiers[2] });
var actual = CalculatorUpdate.Accumulate(l, r);
Assert.AreEqual(expected, actual);
}
public void AccumulateCombinesDistinctUpdatesCorrectly()
{
var modifiers = Helper.MockManyModifiers(4);
var l = new CalculatorUpdate(new[] { modifiers[0] }, new[] { modifiers[1] });
var r = new CalculatorUpdate(new[] { modifiers[2] }, new[] { modifiers[3] });
var expected =
new CalculatorUpdate(new[] { modifiers[0], modifiers[2] }, new[] { modifiers[1], modifiers[3] });
var actual = CalculatorUpdate.Accumulate(l, r);
Assert.AreEqual(expected, actual);
}