public void RemoveDoesNothingToOrderWhenLastStepIsRemoved()
{
// Arrange
var x = new Flow();
var step1 = new Step("name1", "action");
var step2 = new Step("name2", "action");
var step3 = new Step("name3", "action");
// Act
x.Add(step1);
x.Add(step2);
x.Add(step3);
int before1 = step1.Order;
int before2 = step2.Order;
int before3 = step3.Order;
x.Remove(step3);
int after1 = step1.Order;
int after2 = step2.Order;
// Assert
Assert.AreEqual(1, before1);
Assert.AreEqual(2, before2);
Assert.AreEqual(3, before3);
Assert.AreEqual(1, after1);
Assert.AreEqual(2, after2);
}
public void StepRemovedAndReinsertedHasNewOrder()
{
// Arrange
var x = new Flow();
var step1 = new Step("name1", "action");
var step2 = new Step("name2", "action");
var step3 = new Step("name3", "action");
// Act
x.Add(step1);
x.Add(step2);
x.Add(step3);
x.Remove(step1);
x.Add(step1);
// Assert
Assert.AreEqual(3, step1.Order);
}
public void RemoveDecrementsOrderOfRemainingStepsWhenTheMiddleOneIsRemoved()
{
// Arrange
var x = new Flow();
var step1 = new Step("name1", "action");
var step2 = new Step("name2", "action");
var step3 = new Step("name3", "action");
// Act
x.Add(step1);
x.Add(step2);
x.Add(step3);
int before1 = step1.Order;
int before2 = step2.Order;
int before3 = step3.Order;
x.Remove(step2);
int after1 = step1.Order;
int after3 = step3.Order;
// Assert
Assert.AreEqual(1, before1);
Assert.AreEqual(2, before2);
Assert.AreEqual(3, before3);
Assert.AreEqual(1, after1);
Assert.AreEqual(2, after3);
}