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<?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\Attributes\CoversClass;
use PHPUnit\Framework\Attributes\DataProvider;
use PHPUnit\Framework\Attributes\Small;
use PHPUnit\Framework\Attributes\UsesClass;
use PHPUnit\Framework\TestCase;
use SebastianBergmann\Type\TestFixture\AnInterface;
use SebastianBergmann\Type\TestFixture\AnotherInterface;
use SebastianBergmann\Type\TestFixture\ClassImplementingAnInterfaceAndAnotherInterface;
#[CoversClass(IntersectionType::class)]
#[CoversClass(Type::class)]
#[UsesClass(ObjectType::class)]
#[UsesClass(SimpleType::class)]
#[UsesClass(TypeName::class)]
#[Small]
final class IntersectionTypeTest extends TestCase
{
private IntersectionType $type;
/**
* @return non-empty-list<array{0: bool, 1: Type, 2: IntersectionType}>
*/
public static function assignableTypes(): array
{
return [
[
true,
Type::fromName(ClassImplementingAnInterfaceAndAnotherInterface::class, false),
new IntersectionType(
Type::fromName(AnInterface::class, false),
Type::fromName(AnotherInterface::class, false),
),
],
[
false,
Type::fromValue(false, false),
new IntersectionType(
Type::fromName(AnInterface::class, false),
Type::fromName(AnotherInterface::class, false),
),
],
];
}
protected function setUp(): void
{
$this->type = new IntersectionType(
Type::fromName(AnInterface::class, false),
Type::fromName(AnotherInterface::class, false),
);
}
public function testTypesCanBeQueried(): void
{
$a = Type::fromName(AnInterface::class, false);
$b = Type::fromName(AnotherInterface::class, false);
$type = new IntersectionType($a, $b);
$this->assertSame([$a, $b], $type->types());
}
public function testCanBeQueriedForType(): void
{
/** @phpstan-ignore method.alreadyNarrowedType */
$this->assertTrue($this->type->isIntersection());
$this->assertFalse($this->type->isCallable());
$this->assertFalse($this->type->isFalse());
$this->assertFalse($this->type->isGenericObject());
$this->assertFalse($this->type->isIterable());
$this->assertFalse($this->type->isMixed());
$this->assertFalse($this->type->isNever());
$this->assertFalse($this->type->isNull());
$this->assertFalse($this->type->isObject());
$this->assertFalse($this->type->isSimple());
$this->assertFalse($this->type->isStatic());
$this->assertFalse($this->type->isTrue());
$this->assertFalse($this->type->isUnion());
$this->assertFalse($this->type->isUnknown());
$this->assertFalse($this->type->isVoid());
}
public function testHasName(): void
{
$this->assertSame(
AnInterface::class . '&' . AnotherInterface::class,
$this->type->name(),
);
}
public function testCanBeRepresentedAsString(): void
{
$this->assertSame(
AnInterface::class . '&' . AnotherInterface::class,
$this->type->asString(),
);
}
public function testTypesOfIntersectionAreSortedByNameInStringRepresentation(): void
{
$type = new IntersectionType(
Type::fromName(AnotherInterface::class, false),
Type::fromName(AnInterface::class, false),
);
$this->assertSame(AnInterface::class . '&' . AnotherInterface::class, $type->asString());
}
#[DataProvider('assignableTypes')]
public function testAssignableTypesAreRecognized(bool $expected, Type $type, IntersectionType $intersection): void
{
$this->assertSame($expected, $intersection->isAssignable($type));
}
public function testDoesNotAllowNull(): void
{
$this->assertFalse($this->type->allowsNull());
}
public function testCannotBeCreatedFromLessThanTwoTypes(): void
{
$this->expectException(RuntimeException::class);
new IntersectionType;
}
public function testCanOnlyBeCreatedForInterfacesAndClasses(): void
{
$this->expectException(RuntimeException::class);
new IntersectionType(
Type::fromValue(false, false),
Type::fromValue('string', false),
);
}
public function testMustNotContainDuplicateTypes(): void
{
$this->expectException(RuntimeException::class);
new IntersectionType(
Type::fromName(AnInterface::class, false),
Type::fromName(AnInterface::class, false),
Type::fromName(AnotherInterface::class, false),
);
}
}
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