functional-php/tests/ReflectionPartialAppliedFunctionTest.php
2018-07-15 22:27:03 +02:00

82 lines
2.6 KiB
PHP

<?php
/**
* Copyright 2018 Kacper Donat
*
* @author Kacper "Kadet" Donat <kacper@kadet.net>
*
* Full license available in separate LICENSE file
*/
use Kadet\Functional as f;
use const Kadet\Functional\_;
use Kadet\Functional\Reflection\ReflectionAppliedParameter;
use Kadet\Functional\Reflection\ReflectionPartiallyAppliedFunction;
class ReflectionPartialAppliedFunctionTest extends \PHPUnit\Framework\TestCase
{
/**
* @var \Kadet\Functional\Utils\PartiallyAppliedFunction
*/
private $function;
protected function setUp()
{
$this->function = f\partial(function (array $a, array $b, array $c, array $d = ['d']) {
return array_merge($a, $b, $c, $d);
}, ['a'], _, ['c']);
}
public function testNumberOfParameters()
{
$reflection = new ReflectionPartiallyAppliedFunction($this->function);
$this->assertSame(2, $reflection->getNumberOfParameters());
}
public function testNumberOfRequiredParameters()
{
$reflection = new ReflectionPartiallyAppliedFunction($this->function);
$this->assertSame(1, $reflection->getNumberOfRequiredParameters());
}
public function testNumberOfAppliedParameters()
{
$reflection = new ReflectionPartiallyAppliedFunction($this->function);
$this->assertSame(2, $reflection->getNumberOfAppliedParameters());
}
public function testParameters()
{
$reflection = new ReflectionPartiallyAppliedFunction($this->function);
$parameters = $reflection->getParameters();
$this->assertContainsOnlyInstancesOf(ReflectionParameter::class, $parameters);
$this->assertCount(2, $parameters);
$this->assertEquals([1, 3], array_keys($parameters));
}
public function testAppliedParameters()
{
$reflection = new ReflectionPartiallyAppliedFunction($this->function);
$parameters = $reflection->getAppliedParameters();
$this->assertContainsOnlyInstancesOf(ReflectionAppliedParameter::class, $parameters);
$this->assertCount(2, $parameters);
$this->assertEquals([0, 2], array_keys($parameters));
$this->assertEquals([0 => ['a'], 2 => ['c']], array_map(function(ReflectionAppliedParameter $parameter) {
return $parameter->getValue();
}, $parameters));
}
public function testIsCurried()
{
$reflection = new ReflectionPartiallyAppliedFunction($this->function);
$this->assertFalse($reflection->isCurried());
$curried = new ReflectionPartiallyAppliedFunction(f\curry($this->function->getDecorated()));
$this->assertTrue($curried->isCurried());
}
}