--TEST--
ReflectionClass::implementsInterface()
--CREDITS--
Robin Fernandes <robinf@php.net>
Steve Seear <stevseea@php.net>
--FILE--
<?php
interface I1 {}
class A implements I1 {}
class B extends A {}

interface I2 extends I1 {}
class C implements I2 {}

$classNames = array('A', 'B', 'C', 'I1', 'I2');

foreach ($classNames as $className) {
    $rcs[$className] = new ReflectionClass($className);
}

foreach ($rcs as $childName => $child) {
    foreach ($rcs as $parentName => $parent) {
        echo "Does " . $childName . " implement " . $parentName . "?\n";
        echo "   - Using object argument: ";
        try {
            var_dump($child->implementsInterface($parent));
        } catch (Exception|TypeError $e) {
            echo $e->getMessage() . "\n";
        }
        echo "   - Using string argument: ";
        try {
            var_dump($child->implementsInterface($parentName));
        } catch (Exception|TypeError $e) {
            echo $e->getMessage() . "\n";
        }
    }
}



echo "\n\nTest bad arguments:\n";
try {
    $rcs['A']->implementsInterface();
} catch (ArgumentCountError $e) {
    echo $e->getMessage() . "\n";
}
try {
    $rcs['A']->implementsInterface('C', 'C');
} catch (ArgumentCountError $e) {
    echo $e->getMessage() . "\n";
}
try {
    $rcs['A']->implementsInterface(null);
} catch (ReflectionException $e) {
    echo $e->getMessage() . "\n";
}
try {
    $rcs['A']->implementsInterface('ThisClassDoesNotExist');
} catch (ReflectionException $e) {
    echo $e->getMessage() . "\n";
}
try {
    $rcs['A']->implementsInterface(2);
} catch (ReflectionException $e) {
    echo $e->getMessage() . "\n";
}
?>
--EXPECT--
Does A implement A?
   - Using object argument: A is not an interface
   - Using string argument: A is not an interface
Does A implement B?
   - Using object argument: B is not an interface
   - Using string argument: B is not an interface
Does A implement C?
   - Using object argument: C is not an interface
   - Using string argument: C is not an interface
Does A implement I1?
   - Using object argument: bool(true)
   - Using string argument: bool(true)
Does A implement I2?
   - Using object argument: bool(false)
   - Using string argument: bool(false)
Does B implement A?
   - Using object argument: A is not an interface
   - Using string argument: A is not an interface
Does B implement B?
   - Using object argument: B is not an interface
   - Using string argument: B is not an interface
Does B implement C?
   - Using object argument: C is not an interface
   - Using string argument: C is not an interface
Does B implement I1?
   - Using object argument: bool(true)
   - Using string argument: bool(true)
Does B implement I2?
   - Using object argument: bool(false)
   - Using string argument: bool(false)
Does C implement A?
   - Using object argument: A is not an interface
   - Using string argument: A is not an interface
Does C implement B?
   - Using object argument: B is not an interface
   - Using string argument: B is not an interface
Does C implement C?
   - Using object argument: C is not an interface
   - Using string argument: C is not an interface
Does C implement I1?
   - Using object argument: bool(true)
   - Using string argument: bool(true)
Does C implement I2?
   - Using object argument: bool(true)
   - Using string argument: bool(true)
Does I1 implement A?
   - Using object argument: A is not an interface
   - Using string argument: A is not an interface
Does I1 implement B?
   - Using object argument: B is not an interface
   - Using string argument: B is not an interface
Does I1 implement C?
   - Using object argument: C is not an interface
   - Using string argument: C is not an interface
Does I1 implement I1?
   - Using object argument: bool(true)
   - Using string argument: bool(true)
Does I1 implement I2?
   - Using object argument: bool(false)
   - Using string argument: bool(false)
Does I2 implement A?
   - Using object argument: A is not an interface
   - Using string argument: A is not an interface
Does I2 implement B?
   - Using object argument: B is not an interface
   - Using string argument: B is not an interface
Does I2 implement C?
   - Using object argument: C is not an interface
   - Using string argument: C is not an interface
Does I2 implement I1?
   - Using object argument: bool(true)
   - Using string argument: bool(true)
Does I2 implement I2?
   - Using object argument: bool(true)
   - Using string argument: bool(true)


Test bad arguments:
ReflectionClass::implementsInterface() expects exactly 1 argument, 0 given
ReflectionClass::implementsInterface() expects exactly 1 argument, 2 given
Interface "" does not exist
Interface "ThisClassDoesNotExist" does not exist
Interface "2" does not exist