<?php

interface FooInterface {
    public function foo($a, $b);
}

abstract class ClassA implements FooInterface {
    abstract public function foo($a, $b);
}

class ClassB extends ClassA {
    public function foo($a, $b = 123) {}
}

class ClassC implements FooInterface {
    public function foo($a, $b = 123) {}
}

interface BarInterface {
    public function bar();
}

trait MyTrait {
    abstract public function bar();
}

class ClassT {
    use MyTrait;

    public function bar() {}
}

public function testGetPrototype()
{
    $fixture = __DIR__ . '/../Fixture/PrototypeTree.php';
    $reflector = new ClassReflector(new SingleFileSourceLocator($fixture));

    $b = $reflector->reflect('ClassB')->getMethod('foo')->getPrototype();
    $this->assertInstanceOf(ReflectionMethod::class, $b);
    $this->assertSame('ClassA', $b->getDeclaringClass()->getName());

    $c = $reflector->reflect('ClassC')->getMethod('foo')->getPrototype();
    $this->assertInstanceOf(ReflectionMethod::class, $c);
    $this->assertSame('FooInterface', $c->getDeclaringClass()->getName());

    $this->setExpectedException(MethodPrototypeNotFound::class);
    $t = $reflector->reflect('ClassT')->getMethod('bar')->getPrototype();
}