<?php

require "grade-school.php";
use PHPUnit\Framework\TestCase;

class GradeSchoolTest extends TestCase
{
    protected $school ;

    protected function setUp()
    {
        $this->school = new School() ;
    }

    public function testNoStudent()
    {
        $this->assertEquals(0, $this->school->numberOfStudents());
    }

    public function testAddStudent()
    {
        $this->markTestSkipped();

        $this->school->add("Claire", 2);
        $this->assertContains('Claire', $this->school->grade(2));
    }

    public function testAddStudentsinSameGrade()
    {
        $this->markTestSkipped();

        $this->school->add("Marc", 2);
        $this->school->add("Virginie", 2);
        $this->school->add("Claire", 2);

        $students = $this->school->grade(2) ;
        $this->assertCount(3, $students);
        $this->assertEquals(
            ['Claire', 'Marc', 'Virginie'],
            $students,
            $message = '',
            $delta = 0.0,
            $maxDepth = 10,
            $canonicalize = true
        );
    }

    public function testAddStudentInDifferentGrades()
    {
        $this->markTestSkipped();

        $this->school->add("Marc", 3);
        $this->school->add("Claire", 6);

        $this->assertContains('Marc', $this->school->grade(3));
        $this->assertContains('Claire', $this->school->grade(6));
        $this->assertNotContains('Marc', $this->school->grade(6));
        $this->assertNotContains('Claire', $this->school->grade(3));
    }

    public function testEmptyGrade()
    {
        $this->markTestSkipped();

        $this->assertEmpty($this->school->grade(1));
    }

    public function testSortSchool()
    {
        $this->markTestSkipped();

        $this->school->add("Marc", 5);
        $this->school->add("Virginie", 5);
        $this->school->add("Claire", 5);
        $this->school->add("Mehdi", 4);

        $sortedStudents = [
            4 => ['Mehdi'],
            5 => ['Claire', 'Marc', 'Virginie']
        ];
        $schoolStudents = $this->school->studentsByGradeAlphabetical() ;
        $this->assertEquals($sortedStudents, $schoolStudents) ;
    }
}