File Coverage

blib/lib/App/PAIA/Tester.pm

Criterion	Covered	Total	%
statement	69	79	87.3
branch	6	10	60.0
condition	6	11	54.5
subroutine	25	30	83.3
pod	14	17	82.3
total	120	147	81.6

package App::PAIA::Tester;
use strict;
use v5.10;

our $VERSION = '0.30';

use parent 'Exporter';
our @EXPORT = (qw(
    new_paia_test done_paia_test paia_response paia_live
    paia PAIA debug
    stdout stderr output error exit_code
    stdout_json stderr_json output_json error exit_code
    ));

use Test::More;
use App::Cmd::Tester;
use File::Temp qw(tempdir);
use Cwd;
use App::PAIA;
use JSON::PP qw(encode_json);
use Scalar::Util qw(reftype);
use HTTP::Tiny;

our $CWD = getcwd();
our $RESULT;

sub decode_json {
    my $json = shift;
    $json =~ s/^#.*$//mg;
    JSON::PP::decode_json($json)
}

sub stdout_json() { decode_json($RESULT->stdout) }
sub stderr_json() { decode_json($RESULT->stderr) }
sub output_json() { decode_json($RESULT->output) }

## no critic
eval "sub $_() { \$RESULT->$_ }" for qw(stdout stderr output error exit_code);

our $HTTP_TINY_REQUEST = \&HTTP::Tiny::request;

our $DEFAULT_PSGI = [ 500, [], ["no response faked yet"] ];
our $PSGI_RESPONSE = $DEFAULT_PSGI;
our $HTTP_REQUEST = sub { $PSGI_RESPONSE };

sub mock_http {
    my ($self, $method, $url, $opts) = @_;
    my $psgi = $HTTP_REQUEST->(
        $method, $url, $opts->{headers}, $opts->{content}
    );
    return {
        protocol => 'HTTP/1.1',
        status   => $psgi->[0],
        headers  => { @{$psgi->[1]} },
        content  => join "", @{$psgi->[2]},
    };
};

sub paia_live() {
    no warnings;
    *HTTP::Tiny::request = $HTTP_TINY_REQUEST;
}

sub new_paia_test(@) { ## no critic
    chdir tempdir;
    paia_live;
}

sub paia_response(@) { ## no critic
    $PSGI_RESPONSE = $DEFAULT_PSGI;
    if (ref $_[0] and reftype $_[0]  eq 'ARRAY') {
        $PSGI_RESPONSE = shift;
    } else {
        $PSGI_RESPONSE = $DEFAULT_PSGI;
        $PSGI_RESPONSE->[0] = $_[0] =~ /^\d+/ ? shift : 200;
        $PSGI_RESPONSE->[1] = shift if ref $_[0] and reftype $_[0] eq 'ARRAY' and @_ > 1;
        my $content = shift;
        if (reftype $content eq 'HASH') {
            push @{$PSGI_RESPONSE->[1]}, 'Content-type', 'application/json; charset=UTF-8';
            $PSGI_RESPONSE->[2] = [ encode_json($content) ];
        } elsif (reftype $_[1] eq 'ARRAY') {
            $PSGI_RESPONSE->[2] = $content;
        } else {
            $PSGI_RESPONSE->[2] = [$content];
        }
    }

    no warnings;
    *HTTP::Tiny::request = \&mock_http;
}

sub paia(@) { ## no critic
    $RESULT = test_app('App::PAIA' => [@_]);
}

sub PAIA($) { ## no critic
    my @args = split /\s+/, shift;
    say join ' ', '# paia', @args;
    paia(@args);
}

sub done_paia_test() {
    chdir $CWD;
    done_testing;
}

sub debug {
    say "# $_" for split "\n", join "\n", (
        "stdout: ".$RESULT->stdout,
        "stderr: ".$RESULT->stderr,
        "error: ".$RESULT->error // 'undef',
        "exit_code: ".$RESULT->exit_code
    );
}

1;
__END__