Google\Cloud\PubSub\Connection\IamSubscription::testPermissions PHP Method

    public function testPermissions(array $args)
    {
        return $this->connection->testSubscriptionIamPermissions($args);
    }

 public function testProxies()
 {
     $connection = $this->prophesize(ConnectionInterface::class);
     $connection->getSubscriptionIamPolicy(Argument::withEntry('foo', 'bar'))->willReturn('test')->shouldBeCalledTimes(1);
     $connection->setSubscriptionIamPolicy(Argument::withEntry('foo', 'bar'))->willReturn('test')->shouldBeCalledTimes(1);
     $connection->testSubscriptionIamPermissions(Argument::withEntry('foo', 'bar'))->willReturn('test')->shouldBeCalledTimes(1);
     $iamSubscription = new IamSubscription($connection->reveal());
     $this->assertEquals('test', $iamSubscription->getPolicy(['foo' => 'bar']));
     $this->assertEquals('test', $iamSubscription->setPolicy(['foo' => 'bar']));
     $this->assertEquals('test', $iamSubscription->testPermissions(['foo' => 'bar']));
 }