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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;
#[CoversClass(UnionType::class)]
#[CoversClass(Type::class)]
#[UsesClass(NullType::class)]
#[UsesClass(SimpleType::class)]
#[UsesClass(IntersectionType::class)]
#[UsesClass(ObjectType::class)]
#[UsesClass(TypeName::class)]
#[Small]
final class UnionTypeTest extends TestCase
{
/**
* @return non-empty-list<array{0: string, 1: Type}>
*/
public static function stringRepresentationProvider(): array
{
return [
[
'bool|int',
new UnionType(
Type::fromName('bool', false),
Type::fromName('int', false),
),
],
[
'(' . AnInterface::class . '&' . AnotherInterface::class . ')|bool',
new UnionType(
new IntersectionType(
Type::fromName(AnInterface::class, false),
Type::fromName(AnotherInterface::class, false),
),
Type::fromName('bool', false),
),
],
];
}
/**
* @return non-empty-list<array{0: bool, 1: Type, 2: UnionType}>
*/
public static function assignableProvider(): array
{
return [
[
true,
Type::fromName('bool', false),
new UnionType(
Type::fromName('bool', false),
Type::fromName('int', false),
),
],
[
true,
Type::fromName('int', false),
new UnionType(
Type::fromName('bool', false),
Type::fromName('int', false),
),
],
[
false,
Type::fromName('string', false),
new UnionType(
Type::fromName('bool', false),
Type::fromName('int', false),
),
],
];
}
#[DataProvider('stringRepresentationProvider')]
public function testCanBeRepresentedAsString(string $expected, Type $type): void
{
$this->assertSame($expected, $type->asString());
}
public function testTypesCanBeQueried(): void
{
$bool = Type::fromName('bool', false);
$null = Type::fromName('null', true);
$type = new UnionType($bool, $null);
$this->assertSame([$bool, $null], $type->types());
}
public function testMayAllowNull(): void
{
$type = new UnionType(
Type::fromName('bool', false),
Type::fromName('null', true),
);
$this->assertTrue($type->allowsNull());
}
public function testMayNotAllowNull(): void
{
$type = new UnionType(
Type::fromName('bool', false),
Type::fromName('int', false),
);
$this->assertFalse($type->allowsNull());
}
public function testMayContainIntersectionType(): void
{
$type = new UnionType(
Type::fromName('bool', false),
new IntersectionType(
Type::fromName(AnInterface::class, false),
Type::fromName(AnotherInterface::class, false),
),
);
$this->assertTrue($type->containsIntersectionTypes());
}
public function testMayNotContainIntersectionType(): void
{
$type = new UnionType(
Type::fromName('bool', false),
Type::fromName('int', false),
);
$this->assertFalse($type->containsIntersectionTypes());
}
#[DataProvider('assignableProvider')]
public function testAssignableTypesAreRecognized(bool $expected, Type $type, UnionType $union): void
{
$this->assertSame($expected, $union->isAssignable($type));
}
public function testCannotBeCreatedFromLessThanTwoTypes(): void
{
$this->expectException(RuntimeException::class);
new UnionType;
}
public function testCannotBeCreatedFromUnknownType(): void
{
$this->expectException(RuntimeException::class);
new UnionType(
Type::fromName('int', false),
Type::fromName('unknown type', false),
);
}
public function testCannotBeCreatedFromVoidType(): void
{
$this->expectException(RuntimeException::class);
new UnionType(
Type::fromName('int', false),
Type::fromName('void', false),
);
}
public function testCanBeQueriedForType(): void
{
$type = new UnionType(
new SimpleType('bool', false),
new SimpleType('string', false),
);
/** @phpstan-ignore method.alreadyNarrowedType */
$this->assertTrue($type->isUnion());
/** @phpstan-ignore method.impossibleType */
$this->assertFalse($type->isCallable());
/** @phpstan-ignore method.impossibleType */
$this->assertFalse($type->isFalse());
/** @phpstan-ignore method.impossibleType */
$this->assertFalse($type->isGenericObject());
/** @phpstan-ignore method.impossibleType */
$this->assertFalse($type->isIntersection());
/** @phpstan-ignore method.impossibleType */
$this->assertFalse($type->isIterable());
/** @phpstan-ignore method.impossibleType */
$this->assertFalse($type->isMixed());
/** @phpstan-ignore method.impossibleType */
$this->assertFalse($type->isNever());
/** @phpstan-ignore method.impossibleType */
$this->assertFalse($type->isNull());
/** @phpstan-ignore method.impossibleType */
$this->assertFalse($type->isObject());
/** @phpstan-ignore method.impossibleType */
$this->assertFalse($type->isSimple());
/** @phpstan-ignore method.impossibleType */
$this->assertFalse($type->isStatic());
/** @phpstan-ignore method.impossibleType */
$this->assertFalse($type->isTrue());
/** @phpstan-ignore method.impossibleType */
$this->assertFalse($type->isUnknown());
/** @phpstan-ignore method.impossibleType */
$this->assertFalse($type->isVoid());
}
}
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