ErrTest.php
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ErrTest.php
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	<?php
	declare(strict_types=1);

	namespace Keruald\OmniTools\Tests\DataTypes\Result;

	use DivisionByZeroError;
	use Exception;
	use Throwable;

	use Keruald\OmniTools\DataTypes\Result\Err;
	use PHPUnit\Framework\TestCase;

	class ErrTest extends TestCase {
	public function setUp () : void {
	$this->v = new Err;
	$this->v->setError(new DivisionByZeroError());
	}

	public function testIsOk () : void {
	$this->AssertFalse($this->v->isOk());
	}

	public function testIsError () : void {
	$this->assertTrue($this->v->isError());
	}

	public function testGetValue () : void {
	$this->expectException("InvalidArgumentException");
	$this->v->getValue();
	}

	public function testMap () : void {
	$callback = function ($n) {
	return $n * 2;
	};

	$mapped_v = $this->v->map($callback);

	$this->assertEquals($mapped_v, $this->v);
	}

	public function testMapErr () : void {
	$callback = function (Throwable $ex) {
	return new Exception();
	};

	$mapped_v = $this->v->mapErr($callback);
	$this->assertInstanceOf(Exception::class, $mapped_v->getError());
	}

	public function testOrElse () : void {
	$value = $this->v->orElse(666);

	$this->assertEquals(666, $value);
	}
	}