<?php

namespace PhpSchool\PhpWorkshopTest;

use PhpSchool\PhpWorkshop\CodeInsertion;

use PhpSchool\PhpWorkshop\Patch;

use PHPUnit\Framework\TestCase;

class PatchTest extends TestCase

{

public function testWithInsertion(): void

{

$patch = new Patch();

$insertion = new CodeInsertion(CodeInsertion::TYPE_BEFORE, 'MEH');

$new = $patch->withInsertion($insertion);

$this->assertNotSame($patch, $new);

$this->assertEmpty($patch->getModifiers());

$this->assertEquals([$insertion], $new->getModifiers());

}

public function testWithTransformerWithClosure(): void

{

$patch = new Patch();

$transformer = function (array $statements) {

return $statements;

};

$new = $patch->withTransformer($transformer);

$this->assertNotSame($patch, $new);

$this->assertEmpty($patch->getModifiers());

$this->assertEquals([$transformer], $new->getModifiers());

}

public function testWithTransformerWithTransformer(): void

{

$patch = new Patch();

$transformer = new class () implements Patch\Transformer {

public function transform(array $ast): array

{

return $ast;

}

};

$new = $patch->withTransformer($transformer);

$this->assertNotSame($patch, $new);

$this->assertEmpty($patch->getModifiers());

$this->assertEquals([$transformer], $new->getModifiers());

}

public function testWithTransformerMultiple(): void

{

$transformer1 = new class () implements Patch\Transformer {

public function transform(array $ast): array

{

return $ast;

}

};

$transformer2 = function (array $statements) {

return $statements;

};

$patch = new Patch();

$new = $patch

->withTransformer($transformer1)

->withTransformer($transformer2);

$this->assertNotSame($patch, $new);

$this->assertEmpty($patch->getModifiers());

$this->assertEquals([$transformer1, $transformer2], $new->getModifiers());

}

}