package Parse::CPAN::Meta::Test;
use strict;
use Test::More ();
use Parse::CPAN::Meta;
use File::Spec;
use vars qw{@ISA @EXPORT};
BEGIN {
        require Exporter;
        @ISA    = qw{ Exporter };
        @EXPORT = qw{
                tests  yaml_ok  yaml_error  slurp  load_ok
                test_data_directory
        };
}
sub test_data_directory {
        return( "corpus" );
}
# 22 tests per call to yaml_ok
# 4  tests per call to load_ok
sub tests {
        return ( tests => count(@_) );
}
sub count {
        my $yaml_ok = shift || 0;
        my $load_ok = shift || 0;
        my $single  = shift || 0;
        my $count   = $yaml_ok * 3 + $load_ok * 4 + $single;
        return $count;
}
sub yaml_ok {
        my $string  = shift;
        my $array   = shift;
        my $name    = shift || 'unnamed';
        # Does the string parse to the structure
        my $yaml_copy = $string;
        my @yaml      = eval { Parse::CPAN::Meta::Load( $yaml_copy ); };
        Test::More::is( $@, '', "$name: Parse::CPAN::Meta parses without error" );
        Test::More::is( $yaml_copy, $string, "$name: Parse::CPAN::Meta does not modify the input string" );
        SKIP: {
                Test::More::skip( "Shortcutting after failure", 1 ) if $@;
                Test::More::is_deeply( \@yaml, $array, "$name: Parse::CPAN::Meta parses correctly" );
        }
        # Return true as a convenience
        return 1;
}
sub yaml_error {
        my $string = shift;
        my $yaml   = eval { Parse::CPAN::Meta::Load( $string ); };
        Test::More::like( $@, qr/$_[0]/, "CPAN::Meta::YAML throws expected error" );
}
sub slurp {
        my $file = shift;
        local $/ = undef;
        open( FILE, " $file" ) or die "open($file) failed: $!";
        my $source = <FILE>;
        close( FILE ) or die "close($file) failed: $!";
        $source;
}
sub load_ok {
        my $name = shift;
        my $file = shift;
        my $size = shift;
        Test::More::ok( -f $file, "Found $name" ) or Test::More::diag("Searched at '$file'");
        Test::More::ok( -r $file, "Can read $name" );
        my $content = slurp( $file );
        Test::More::ok( (defined $content and ! ref $content), "Loaded $name" );
        Test::More::ok( ($size < length $content), "Content of $name larger than $size bytes" );
        return $content;
}
1;