<?php

/**
 * Tests to cover the {@link Session} class
 *
 * @package framework
 * @subpackage tests
 */

class SessionTest extends SapphireTest {

	public function testGetSetBasics() {
		Session::set('Test', 'Test');

		$this->assertEquals(Session::get('Test'), 'Test');
	}

	public function testClearElement() {
		Session::set('Test', 'Test');
		Session::clear('Test');

		$this->assertEquals(Session::get('Test'), '');
	}

	public function testClearAllElements() {
		Session::set('Test', 'Test');
		Session::set('Test-1', 'Test-1');

		Session::clear_all();

		// should session get return null? The array key should probably be
		// unset from the data array
		$this->assertEquals(Session::get('Test'), '');
		$this->assertEquals(Session::get('Test-1'), '');
	}

	public function testGetAllElements() {
		Session::clear_all(); // Remove all session that might've been set by the test harness

		Session::set('Test', 'Test');
		Session::set('Test-2', 'Test-2');

		$session = Session::get_all();
		unset($session['HTTP_USER_AGENT']);

		$this->assertEquals($session, array('Test' => 'Test', 'Test-2' => 'Test-2'));
	}

	public function testSettingExistingDoesntClear() {
		$s = Injector::inst()->create('Session', array('something' => array('does' => 'exist')));

		$s->inst_set('something.does', 'exist');
		$result = $s->inst_changedData();
		unset($result['HTTP_USER_AGENT']);
		$this->assertEquals(array(), $result);
	}

	/**
	 * Check that changedData isn't populated with junk when clearing non-existent entries.
	 */
	public function testClearElementThatDoesntExist() {
		$s = Injector::inst()->create('Session', array('something' => array('does' => 'exist')));

		$s->inst_clear('something.doesnt.exist');
		$result = $s->inst_changedData();
		unset($result['HTTP_USER_AGENT']);
		$this->assertEquals(array(), $result);

		$s->inst_set('something-else', 'val');
		$s->inst_clear('something-new');
		$result = $s->inst_changedData();
		unset($result['HTTP_USER_AGENT']);
		$this->assertEquals(array('something-else' => 'val'), $result);
	}

	/**
	 * Check that changedData is populated with clearing data.
	 */
	public function testClearElementThatDoesExist() {
		$s = Injector::inst()->create('Session', array('something' => array('does' => 'exist')));

		$s->inst_clear('something.does');
		$result = $s->inst_changedData();
		unset($result['HTTP_USER_AGENT']);
		$this->assertEquals(array('something' => array('does' => null)), $result);
	}

	public function testNonStandardPath(){
		Config::inst()->update('Session', 'store_path', (realpath(dirname($_SERVER['DOCUMENT_ROOT']) . '/../session')));
		Session::start();

		$this->assertEquals(Config::inst()->get('Session', 'store_path'), '');
	}

	public function testUserAgentLockout() {
		// Set a user agent
		$_SERVER['HTTP_USER_AGENT'] = 'Test Agent';

		// Generate our session
		/** @var Session $s */
		$s = Injector::inst()->create('Session', array());
		$s->inst_set('val', 123);
		$s->inst_finalize();
		$data = $s->inst_getAll();

		// Change our UA
		$_SERVER['HTTP_USER_AGENT'] = 'Fake Agent';

		// Verify the new session reset our values (passed by constructor)
		/** @var Session $s2 */
		$s2 = Injector::inst()->create('Session', $data);
		$this->assertNotEquals($s2->inst_get('val'), 123);

		// Verify a started session resets our values (initiated by $_SESSION object)
		/** @var Session $s3 */
		$s3 = Injector::inst()->create('Session', []);
		foreach ($data as $key => $value) {
			$s3->inst_set($key, $value);
		}
		$s3->inst_start();
		$this->assertNotEquals($s3->inst_get('val'), 123);
	}
}