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#!/usr/bin/perl
use v5.14;
use warnings;
use Test2::V0;
use Future;
use Future::AsyncAwait;
my @f;
sub set_dc { push @f, my $f = Future->new; return $f; }
sub readwrite { Future->done( $_[0] ) }
# Inspired by Device::Chip::SSD1306::SPI4::send_cmd
async sub send_cmd
{
my $self = shift;
my @vals = @_;
await set_dc();
await readwrite( join "", map { chr } @vals );
}
# Inspired by Device::Chip::SSD1306::init
async sub init
{
my $self = shift;
await $self->send_cmd( 1, 2 );
await $self->send_cmd( 3, 4 );
}
{
my $f = __PACKAGE__->init;
# Pump Futures
( shift @f )->done() while @f;
is( $f->get, "\x03\x04", 'result' );
}
done_testing;
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