public void MethodCompare_SupplyNewEntries_ResultContainsOnlyNewEntries()
{
const int expectedNewListCount = 2;
List <int> testObject = new List <int>
{
1,
2
};
List <int> newListTestData = new List <int>
{
1,
2,
3,
4
};
List <int> expectedNewList = new List <int>
{
3,
4
};
ListDifferences <int> expectedResult = new ListDifferences <int>(expectedNewList, Enumerable.Empty <int>(), Enumerable.Empty <int>());
ListDifferences <int> actualResult = testObject.Compare <int>(newListTestData);
Assert.IsNotNull(actualResult);
Assert.AreEqual(expectedResult, actualResult);
Assert.AreEqual(expectedNewListCount, actualResult.New.Count());
}
public void MethodComapre_SupplySameList_NoDifferences()
{
List <int> testObject = new List <int>
{
1,
2,
3,
4
};
List <int> newListTestData = new List <int>
{
1,
2,
3,
4
};
ListDifferences <int> expectedResult = ListDifferences <int> .Empty;
ListDifferences <int> actualResult = testObject.Compare(newListTestData);
Assert.IsNotNull(actualResult);
Assert.AreEqual(expectedResult, actualResult);
}
public void MethodCompare_SupplyNewUpdatedAndDeletedList_ContainsNewUpdatedAndDeletedEntries()
{
const int expectedNewListCount = 1;
const int expectedUpdatedListCount = 1;
const int expectedDeletedListCount = 1;
List <int> testObject = new List <int>
{
1,
2,
3
};
List <int> newListTestData = new List <int>
{
1,
3,
4
};
List <int> expectedNewList = new List <int>
{
4
};
List <int> expectedUpdatedList = new List <int>
{
3
};
List <int> expectedDeletedList = new List <int>
{
2
};
ListDifferences <int> expectedResult = new ListDifferences <int>(expectedNewList, expectedUpdatedList, expectedDeletedList);
ListDifferences <int> actualResult = testObject.Compare(newListTestData, (item, newItem) => Equals(item, newItem), (item, newItem) =>
{
int originalIndex = testObject.IndexOf(newItem);
int newIndex = newListTestData.IndexOf(newItem);
return(Equals(originalIndex, newIndex));
});
Assert.IsNotNull(actualResult);
Assert.AreEqual(expectedResult, actualResult);
Assert.AreEqual(expectedNewListCount, actualResult.New.Count());
Assert.AreEqual(expectedUpdatedListCount, actualResult.Updated.Count());
Assert.AreEqual(expectedDeletedListCount, actualResult.Deleted.Count());
}
public void MethodCompare_SupplyAlteredList_ResultContainsOnlyUpdatedEntries()
{
const int expectedUpdatedListCount = 2;
List <int> testObject = new List <int>
{
1,
2,
3,
4
};
List <int> newListTestData = new List <int>
{
1,
3,
2,
4
};
List <int> expectedUpdatedList = new List <int>
{
3,
2
};
ListDifferences <int> expectedResult = new ListDifferences <int>(Enumerable.Empty <int>(), expectedUpdatedList, Enumerable.Empty <int>());
ListDifferences <int> actualResult = testObject.Compare(newListTestData, (item, newItem) => Equals(item, newItem), (item, newItem) =>
{
int originalIndex = testObject.IndexOf(newItem);
int newIndex = newListTestData.IndexOf(newItem);
return(Equals(originalIndex, newIndex));
});
Assert.IsNotNull(actualResult);
Assert.AreEqual(expectedResult, actualResult);
Assert.AreEqual(expectedUpdatedListCount, actualResult.Updated.Count());
}
