static void Main(string[] args)
{
List<Person> students = new List<Person>();
string fileFullPath = Path.GetFullPath(@"group.txt");
if (!File.Exists(fileFullPath))
throw new FileNotFoundException();
string line;
using (StreamReader file = new StreamReader(fileFullPath))
{
while ((line = file.ReadLine()) != null)
{
Person student = new Person(line);
students.Add(student);
}
}
students.Sort(PersonComparer.CompareByGroupNameSurname);
foreach (Person student in students)
Console.WriteLine(student);
Console.ReadKey();
}
public static int CompareBySurname(Person leftPerson, Person rightPerson)
{
//TODO: Добавить реализацию сравнения по именам
return String.Compare(leftPerson.Surname,rightPerson.Surname);
//throw new NotImplementedException();
}
public static int CompareByGroupNameSurname(Person leftPerson, Person rightPerson)
{
if (leftPerson.Group.CompareTo(rightPerson.Group) == 0)
{
if (CompareByName(leftPerson, rightPerson) == 0)
{ return CompareBySurname(leftPerson, rightPerson); }
else return CompareByName(leftPerson, rightPerson);
}
else
return leftPerson.Group.CompareTo(rightPerson.Group);
}
public static int CompareByName(Person leftPerson, Person rightPerson)
{
if (rightPerson == null && leftPerson == null)
{
return 0;
}
if (leftPerson == null)
{
return -1;
}
if (rightPerson == null)
{
return 1;
}
return leftPerson.Name.CompareTo(rightPerson.Name);
}
public static int CompareByGroupNameSurname(Person leftPerson, Person rightPerson)
{
//TODO: Добавить реализацию сравнения по именам
if (String.Compare(leftPerson.Group, rightPerson.Group) == 0)
{
if (CompareByName(leftPerson, rightPerson) == 0)
{
return CompareBySurname(leftPerson, rightPerson);
}
else
return CompareByName(leftPerson, rightPerson);
}
else
return String.Compare(leftPerson.Group,rightPerson.Group);
//throw new NotImplementedException();
}
public static int CompareBySurname(Person leftPerson, Person rightPerson)
{
return leftPerson.Surname.CompareTo(rightPerson.Surname);
}
public static int CompareByName(Person leftPerson, Person rightPerson)
{
//TODO: Добавить реализацию сравнения по именам
throw new NotImplementedException();
}
public void TestNameCompareNull()
{
Person personLeft = new Person();
Person personRight = new Person(@"Бунин Иван РН-231");
Assert.AreEqual(-1, PersonComparer.CompareByName(personLeft, personRight));
}
public void TestNameCompare()
{
Person personLeft = new Person(@"Мандельштам Осип РН-231");
Person personRight = new Person(@"Бунин Иван РН-231");
Assert.AreEqual(1, PersonComparer.CompareByName(personLeft, personRight));
}
public void TestGroupNameSurnameCompareSameGroupName()
{
Person personLeft = new Person(@"Некрасов Иван РН-231");
Person personRight = new Person(@"Бунин Иван РН-231");
Assert.AreEqual(1, PersonComparer.CompareByGroupNameSurname(personLeft, personRight));
}
public void TestGroupNameSurnameCompareDifferentGroup()
{
Person personLeft = new Person(@"Бунин Иван РН-231");
Person personRight = new Person(@"Бунин Иван РН-131");
Assert.AreEqual(1, PersonComparer.CompareByGroupNameSurname(personLeft, personRight));
}
