The join table : TestsRegistrations
Tests table
Registrations table
People table




// TestsRegistrations table
$this->belongsTo('Tests'
		, [
            'foreignKey' => 'test_id',
            'joinType' => 'INNER'
        ]
		);

		$this->hasMany('Registrations', [
            'foreignKey' => 'registration_id',
            'joinType' => 'INNER'
        ]);

///Tests table
	$this->belongsToMany('Registrations', [
            'className'=>'Registrations',
			'foreignKey' => 'test_id',
            'targetForeignKey' => 'registration_id',
            'joinTable' => 'tests_registrations',
			//'through'=>'tests_registrations'
        ]);

///Registrations table
	$this->belongsToMany('Tests', [
            'className'=>'Tests',
			'foreignKey' => 'registration_id',
            'targetForeignKey' => 'test_id',
            'joinTable' => 'tests_registrations',
			//'through'=>'tests_registrations'
        ]);

 $this->belongsTo('People', [
            'foreignKey' => 'person_id'
        ]);



And the problem is that i need to acces Tests->TestsRegistration->People:
What i try:
$this->Tests=$this->Tests->find('all',['contain'=>['Registration']
		])
		->distinct('test_id')
		->matching('Registrations')//		->matching('TestsRegistrations'):this does norks because its says TestsRegistrations does not associated with Tests
				));
Its possible to acces Tests->Registration but since people is associated to TestsRegistrations i stuck