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<?php
namespace MabeEnumTest;
use LogicException;
use MabeEnum\Enum;
use MabeEnumTest\TestAsset\ExtendedSerializableEnum;
use MabeEnumTest\TestAsset\SerializableEnum;
use PHPUnit\Framework\TestCase;
use ReflectionClass;
use ReflectionProperty;
use RuntimeException;
/**
* Unit tests for the trait MabeEnum\EnumSerializableTrait
*
* @copyright 2020, Marc Bennewitz
* @license http://github.com/marc-mabe/php-enum/blob/master/LICENSE.txt New BSD License
* @link http://github.com/marc-mabe/php-enum for the canonical source repository
*/
class EnumSerializableTraitTest extends TestCase
{
public function testSerializeSerializableEnum(): void
{
$serialized = serialize(SerializableEnum::get(SerializableEnum::NIL));
$this->assertIsString($serialized);
$unserialized = unserialize($serialized);
$this->assertInstanceOf(SerializableEnum::class, $unserialized);
}
public function testUnserializeFirstWillHoldTheSameInstance(): void
{
$serialized = serialize(SerializableEnum::get(SerializableEnum::STR));
$this->assertIsString($serialized);
// clear all instantiated instances so we can virtual test unserializing first
$this->clearEnumeration(SerializableEnum::class);
// First unserialize
/** @var Enum $unserialized */
$unserialized = unserialize($serialized);
$this->assertInstanceOf(SerializableEnum::class, $unserialized);
// second instantiate
$enum = SerializableEnum::get($unserialized->getValue());
// check if it's the same instance
$this->assertSame($enum, $unserialized);
}
public function testUnserializeThrowsRuntimeExceptionOnUnknownValue(): void
{
$this->expectException(RuntimeException::class);
unserialize('C:' . strlen(SerializableEnum::class) . ':"' . SerializableEnum::class . '":11:{s:4:"test";}');
}
public function testUnserializeThrowsRuntimeExceptionOnInvalidValue(): void
{
$this->expectException(RuntimeException::class);
unserialize('C:' . strlen(SerializableEnum::class) . ':"' . SerializableEnum::class . '":19:{O:8:"stdClass":0:{}}');
}
public function testUnserializeThrowsLogicExceptionOnChangingValue(): void
{
$enumInt = SerializableEnum::get(SerializableEnum::INT);
$enumStrSer = SerializableEnum::STR()->__serialize();
$this->expectException(LogicException::class);
$enumInt->__unserialize($enumStrSer);
}
public function testInheritence(): void
{
$enum = ExtendedSerializableEnum::EXTENDED();
$serialized = serialize($enum);
$this->assertIsString($serialized);
/** @var Enum $unserialized */
$unserialized = unserialize($serialized);
$this->assertInstanceOf(ExtendedSerializableEnum::class, $unserialized);
$this->assertSame($enum->getValue(), $unserialized->getValue());
}
public function testUnserializeFromPhp73(): void
{
$serialized = 'C:39:"MabeEnumTest\TestAsset\SerializableEnum":2:{N;}';
/** @var Enum $unserialized */
$unserialized = unserialize($serialized);
$this->assertInstanceOf(SerializableEnum::class, $unserialized);
$this->assertNull($unserialized->getValue());
}
/**
* Clears all instantiated enumerations and detected constants of the given enumerator
* @param class-string<Enum> $enumeration
*/
private function clearEnumeration($enumeration): void
{
$reflClass = new ReflectionClass($enumeration);
while ($reflClass->getName() !== Enum::class) {
/** @var ReflectionClass<Enum> $reflClass */
$reflClass = $reflClass->getParentClass();
}
foreach ($reflClass->getProperties(ReflectionProperty::IS_STATIC) as $reflProp) {
$reflProp->setAccessible(true);
$reflProp->setValue(null, []);
}
}
}
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