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View File Name : GenericObjectTypeTest.php

<?php declare(strict_types=1);
/*
 * This file is part of sebastian/type.
 *
 * (c) Sebastian Bergmann <sebastian@phpunit.de>
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */
namespace SebastianBergmann\Type;

use PHPUnit\Framework\TestCase;

/**
 * @covers \SebastianBergmann\Type\GenericObjectType
 *
 * @uses \SebastianBergmann\Type\Type
 * @uses \SebastianBergmann\Type\ObjectType
 * @uses \SebastianBergmann\Type\SimpleType
 * @uses \SebastianBergmann\Type\TypeName
 */
final class GenericObjectTypeTest extends TestCase
{
    /**
     * @var GenericObjectType
     */
    private $type;

    protected function setUp(): void
    {
        $this->type = new GenericObjectType(false);
    }

    public function testMayDisallowNull(): void
    {
        $this->assertFalse($this->type->allowsNull());
    }

    public function testCanGenerateReturnTypeDeclaration(): void
    {
        $this->assertEquals(': object', $this->type->getReturnTypeDeclaration());
    }

    public function testMayAllowNull(): void
    {
        $type = new GenericObjectType(true);

        $this->assertTrue($type->allowsNull());
    }

    public function testCanGenerateNullableReturnTypeDeclaration(): void
    {
        $type = new GenericObjectType(true);

        $this->assertEquals(': ?object', $type->getReturnTypeDeclaration());
    }

    public function testObjectCanBeAssignedToGenericObject(): void
    {
        $this->assertTrue(
            $this->type->isAssignable(
                new ObjectType(TypeName::fromQualifiedName(\stdClass::class), false)
            )
        );
    }

    public function testNullCanBeAssignedToNullableGenericObject(): void
    {
        $type = new GenericObjectType(true);

        $this->assertTrue(
            $type->isAssignable(
                new NullType
            )
        );
    }

    public function testNonObjectCannotBeAssignedToGenericObject(): void
    {
        $this->assertFalse(
            $this->type->isAssignable(
                new SimpleType('bool', false)
            )
        );
    }
}