public function testInvokeFlow()
{
$flow1 = m::mock(FlowInterface::class);
$flow2 = m::mock(FlowInterface::class);
$runner = Flow::toAll($flow1, $flow2);
$node1 = m::mock(NodeInterface::class);
$node2 = m::mock(NodeInterface::class);
$node3 = m::mock(NodeInterface::class);
$flow1->shouldReceive('flow')->with($node1)->andReturn($node2);
$flow2->shouldReceive('flow')->with($node1)->andReturn($node3);
$output = call_user_func($runner, $node1);
static::assertInstanceOf(NodeCollection::class, $output);
static::assertEquals([$node2, $node3], $output->getAll());
}
