public void NullListParameterUsePredicate()
{
//Arrange
var listOriginal = default(List <Int32>);
var listToAdd = new List <Int32>();
//Act
CollectionHelpers.AddRangeIfNotExists(listOriginal, (alreadyPresent, toAdd) => alreadyPresent == toAdd, listToAdd);
//Assert
Assert.Fail();
}
public void NullPredicateParameterUsePredicate()
{
//Arrange
var listOriginal = new List <Int32>();
var listToAdd = new List <Int32>();
//Act
CollectionHelpers.AddRangeIfNotExists(listOriginal, null, listToAdd);
//Assert
Assert.Fail();
}
public void NormalUsePredicate()
{
//Arrange
var listOriginal = new List <Int32>(new[] { 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 });
var listToAdd = new List <Int32>(new[] { 1, 2, 3, 4, 5 });
const Int32 EXPECTED_COUNT = 10;
//Act
CollectionHelpers.AddRangeIfNotExists(listOriginal, (alreadyPresent, toAdd) => alreadyPresent == toAdd, listToAdd);
//Assert
Assert.AreEqual(EXPECTED_COUNT, listOriginal.Count);
}
