public static void Test5()
{
var students = HardCodeStudents();
// Split collection of Student to sub-collections of Student (IEnumerable<IGrouping<int, T>> where T : Student)
// with normal method
var result = LINQWorks.StudentsByGroups(students);
result
.ForEach(x =>
{
Console.WriteLine($"Group: {x.Key}");
x.ForEach(y => Console.WriteLine($"{y.FullName}"));
});
PrintLine();
// with ext method
students
.StudentsByGroups()
.ForEach(x =>
{
Console.WriteLine($"Group: {x.Key}");
x.ForEach(y => Console.WriteLine($"{y.FullName}"));
});
PrintLine();
}
// every method from group have comments what exactly testing - just separated to be easier to check results
public static void Test()
{
var students = HardCodeStudents();
// students whos first name lexicographically before last
// with ext method
var result = students.FirstBeforeLast();
result.ForEach(x => Console.WriteLine(x.FullName));
PrintLine();
// with normal method
result = LINQWorks.FirstBeforeLast(students);
result.ForEach(x => Console.WriteLine(x.FullName));
PrintLine();
// students in age range 18-25 including
// with ext method
var otherResult = students.InAgeRange(18, 25);
otherResult.ForEach(x => Console.WriteLine(x));
PrintLine();
// with normal method
otherResult = LINQWorks.InAgeRange(students, 18, 25);
otherResult.ForEach(x => Console.WriteLine(x));
PrintLine();
// sorted students lexicographically by decending first name - then by last name
// with ext method
result = students.StudentsSort();
result.ForEach(x => Console.WriteLine(x.FullName));
PrintLine();
// with normal method
result = LINQWorks.StudentsSort(students);
result.ForEach(x => Console.WriteLine(x.FullName));
PrintLine();
// print numbers once to be seen easy
var numbers = new[] { 4, 19, 21, 144, 48, 84, 96, 12, 7, 100, 0, 13, -5, 12, 3, 7 };
PrintNumbers(numbers);
// print numbers from array that can be devided by 3 AND 7 without reminder (can be changed to OR easy)
// with ext method
var numResult = numbers.DividebleByTwentyOne();
PrintNumbers(numResult);
// with normal method
numResult = LINQWorks.DividebleByTwentyOne(numResult);
PrintNumbers(numResult);
}
public static void Test2()
{
var students = HardCodeStudents();
// students from group 2
// with ext method
students
.StudentsFromGroup(2)
.OrderBy(x => x.FirstName)
.ForEach(x => Console.WriteLine($"{x.FullName} group: {x.GroupNumber}"));
PrintLine();
// with normal method
var result = LINQWorks.StudentsFromGroup(students, 2);
result
.OrderBy(x => x.FirstName)
.ForEach(x => Console.WriteLine($"{x.FullName} group: {x.GroupNumber}"));
PrintLine();
// students with specific domain
// with ext method
students
.StudentsByMailDomain("abv.bg")
.ForEach(x => Console.WriteLine($"{x.FullName} mail: {x.Mail}"));
PrintLine();
// with normal method
result = LINQWorks.StudentsByMailDomain(students, "abv.bg");
result
.ForEach(x => Console.WriteLine($"{x.FullName} mail: {x.Mail}"));
PrintLine();
// students with phone in Sofia (+359 2 xxx xxxx) but let say all from Bulgaria so i dont check for +359 exactly
// with ext method
students
.StudentsByPhone(2, "2")
.ForEach(x => Console.WriteLine($"{x.FullName} tel.: {x.Tel}"));
PrintLine();
// with normal method
result = LINQWorks.StudentsByPhone(students, 2, "2");
result
.ForEach(x => Console.WriteLine($"{x.FullName} tel.: {x.Tel}"));
PrintLine();
}
