public void AddStudent_ShouldAddStudentToListOfStudent()
{
var expectedId = 10;
var mockedStudent = new Mock <IStudent>();
SchoolSystemEngine.AddStudent(expectedId, mockedStudent.Object);
Assert.AreSame(SchoolSystemEngine.Students[expectedId], mockedStudent.Object);
}
public void AddStudent_WhenStudentIsNull_ShouldThrowArgumentNullException()
{
var id = 100;
IStudent nullStudent = null;
var ex = Assert.Throws <ArgumentNullException>(() => SchoolSystemEngine.AddStudent(id, nullStudent));
StringAssert.Contains("cannot be null or empty", ex.Message);
}
public void AddStudent_WhenIdIsInvalid_ShouldThrowArgumentOutOfRangeException()
{
var invalidID = -1;
var mockedStudent = new Mock <IStudent>();
var ex = Assert.Throws <ArgumentOutOfRangeException>(() => SchoolSystemEngine.AddStudent(invalidID, mockedStudent.Object));
StringAssert.Contains("cannot be less than 0!", ex.Message);
}
public void RemoveStudent_ShouldRemoveStudentInStudents()
{
var expectedId = 11;
var mockedStudent = new Mock <IStudent>();
SchoolSystemEngine.AddStudent(expectedId, mockedStudent.Object);
SchoolSystemEngine.RemoveStudent(expectedId);
Assert.IsFalse(SchoolSystemEngine.Students.ContainsKey(expectedId));
}
/// <summary>
/// Executes the CreateStudentCommand and returns the result.
/// </summary>
/// <param name="parameters">The Student parameters.</param>
/// <returns>A string describing the new student.</returns>
public string Execute(IList <string> parameters)
{
var firstName = parameters[0];
var lastName = parameters[1];
var grade = (Grade)int.Parse(parameters[2]);
var studentToAdd = new Student(firstName, lastName, grade);
SchoolSystemEngine.AddStudent(id, studentToAdd);
return($"A new student with name {studentToAdd.FirstName} {studentToAdd.LastName}, grade {studentToAdd.Grade} and ID {id++} was created.");
}