EdhenTest.php

<?php

use Edhen\Decoder;
use Edhen\TagHandler;
use Edhen\Token;

class EdhenTest extends PHPUnit_Framework_TestCase
{
    public function testDecodingSingleElements()
    {
        $this->assertEquals(null, Edhen::decode('nil'));
        $this->assertEquals(true, Edhen::decode('true'));
        $this->assertEquals(false, Edhen::decode('false'));
        $this->assertEquals('Hello, World',Edhen::decode('"Hello, World"'));
        $this->assertEquals("Hello,\nWorld",Edhen::decode('"Hello,\nWorld"'));
        $this->assertEquals("a", Edhen::decode('\a'));
        $this->assertEquals('foo', Edhen::decode('foo'));
        $this->assertEquals('foo/bar', Edhen::decode(':foo/bar'));
        $this->assertEquals(123, Edhen::decode('123'));
        $this->assertEquals(123.45, Edhen::decode('123.45'));
        $this->assertEquals(2.566E-4, Edhen::decode('2.566E-4'));
        $this->assertEquals(array(1, 'foo'), Edhen::decode('(1 :foo)'));
        $this->assertEquals(array('bar', 2), Edhen::decode('[:bar 2]'));
        $this->assertEquals(array('baz' => 1), Edhen::decode('{:baz 1}'));
        $this->assertEquals(array(4, 5), Edhen::decode('#{4 5}'));
    }

    public function testDecodingMultipleElements()
    {
        $this->assertEquals(array('foo', 1), Edhen::decodeAll(':foo 1'));
    }

    public function testCustomTagHandlersCanBeUsed()
    {
        $this->assertEquals(4, Edhen::decode('#double 2', array(new DoubleHandler())));
    }

    public function testEncodingSingleElements()
    {
        $object = new \stdclass();
        $object->foo = 1;
        $resource = fopen(__FILE__, 'r');
        $callable = function () {};

        $this->assertEquals('nil', Edhen::encode(null));
        $this->assertEquals('true', Edhen::encode(true));
        $this->assertEquals('false', Edhen::encode(false));
        $this->assertEquals('123', Edhen::encode(123));
        $this->assertEquals('123.45', Edhen::encode(123.45));
        $this->assertEquals('"foo\"bar"', Edhen::encode('foo"bar'));
        $this->assertEquals('[1 2]', Edhen::encode(array(1, 2)));
        $this->assertEquals('{"foo" 1}', Edhen::encode(array('foo' => 1)));
        $this->assertEquals('{"foo" 1}', Edhen::encode($object));
        $this->assertEquals('nil', Edhen::encode($resource));
        $this->assertEquals('nil', Edhen::encode($callable));
    }
}

class DoubleHandler implements TagHandler
{
    public function canHandle(Token $token)
    {
        return $token->getValue() == 'double';
    }

    public function decode(Decoder $decoder)
    {
        $element = $decoder->decode();

        return array($element * 2);
    }
}