public void AddIfNew_Returns_Empty_If_Item_Is_Null_Or_Whitespace_And_Baselist_Is_Null(string checkItem)
{
IEnumerable <string> updatedList = ListLibrary.AddIfNew(null, checkItem);
List <string> result = new List <string>(updatedList);
Assert.AreEqual(0, result.Count);
}
public void AddIfNew_Returns_List_Of_Only_Checked_Item_If_BaseList_Is_Null()
{
string checkItem = "Fie";
IEnumerable <string> updatedList = ListLibrary.AddIfNew(null, checkItem);
List <string> result = new List <string>(updatedList);
List <string> expectedResult = new List <string>()
{
"Fie"
};
Assert.AreEqual(1, result.Count);
Assert.AreEqual(expectedResult[0], result[0]);
}
public void AddIfNew_Returns_Original_If_Item_Is_Null_Or_Whitespace(string checkItem)
{
Collection <string> baseList = new Collection <string>()
{
"Foo", "Bar", "Moo", "Nar"
};
IEnumerable <string> updatedList = ListLibrary.AddIfNew(baseList, checkItem);
List <string> result = new List <string>(updatedList);
List <string> expectedResult = new List <string>()
{
"Foo", "Bar", "Moo", "Nar"
};
Assert.AreEqual(expectedResult.Count, result.Count);
Assert.AreEqual(expectedResult[0], result[0]);
Assert.AreEqual(expectedResult[1], result[1]);
Assert.AreEqual(expectedResult[2], result[2]);
Assert.AreEqual(expectedResult[3], result[3]);
}
public void AddIfNew_Ignores_New_If_Not_Unique_Considering_Case()
{
Collection <string> baseList = new Collection <string>()
{
"Foo", "Bar", "Moo", "Nar"
};
string checkItem = "bar";
IEnumerable <string> updatedList = ListLibrary.AddIfNew(baseList, checkItem, caseSensitive: false);
List <string> result = new List <string>(updatedList);
List <string> expectedResult = new List <string>()
{
"Foo", "Bar", "Moo", "Nar"
};
Assert.AreEqual(expectedResult.Count, result.Count);
Assert.AreEqual(expectedResult[0], result[0]);
Assert.AreEqual(expectedResult[1], result[1]);
Assert.AreEqual(expectedResult[2], result[2]);
Assert.AreEqual(expectedResult[3], result[3]);
}
public void AddIfNew_Preppends_New_If_Unique_And_Place_First_Is_Specified()
{
Collection <string> baseList = new Collection <string>()
{
"Foo", "Bar", "Moo", "Nar"
};
string checkItem = "Fie";
IEnumerable <string> updatedList = ListLibrary.AddIfNew(baseList, checkItem, placeFirst: true);
List <string> result = new List <string>(updatedList);
List <string> expectedResult = new List <string>()
{
"Fie", "Foo", "Bar", "Moo", "Nar"
};
Assert.AreEqual(expectedResult.Count, result.Count);
Assert.AreEqual(expectedResult[0], result[0]);
Assert.AreEqual(expectedResult[1], result[1]);
Assert.AreEqual(expectedResult[2], result[2]);
Assert.AreEqual(expectedResult[3], result[3]);
Assert.AreEqual(expectedResult[4], result[4]);
}
public void AddIfNew_Appends_New_If_Unique_By_Default()
{
Collection <string> baseList = new Collection <string>()
{
"Foo", "Bar", "Moo", "Nar"
};
string checkItem = "Fie";
IEnumerable <string> updatedList = ListLibrary.AddIfNew(baseList, checkItem);
List <string> result = new List <string>(updatedList);
List <string> expectedResult = new List <string>()
{
"Foo", "Bar", "Moo", "Nar", "Fie"
};
Assert.AreEqual(expectedResult.Count, result.Count);
Assert.AreEqual(expectedResult[0], result[0]);
Assert.AreEqual(expectedResult[1], result[1]);
Assert.AreEqual(expectedResult[2], result[2]);
Assert.AreEqual(expectedResult[3], result[3]);
Assert.AreEqual(expectedResult[4], result[4]);
}