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#!/usr/bin/perl
use v5.14;
use warnings;
use Test2::V0;
package TestParser {
use base qw( Parser::MGC );
sub parse
{
my $self = shift;
return $self->token_number;
}
}
my $parser = TestParser->new;
# We're going to be testing floating point values.
sub approx
{
my ( $got, $exp, $name ) = @_;
ok( abs( $got - $exp ) < 1E-12, $name ) or
diag( "Expected approximately $exp, got $got" );
}
is( $parser->from_string( "123" ), 123, 'Decimal integer' );
approx( $parser->from_string( "123.0" ), 123, 'Decimal integer' );
approx( $parser->from_string( "0.0" ), 0, 'Zero' );
approx( $parser->from_string( "12." ), 12, 'Trailing DP' );
approx( $parser->from_string( ".34" ), 0.34, 'Leading DP' );
approx( $parser->from_string( "8.9" ), 8.9, 'Infix DP' );
ok( dies { $parser->from_string( "hello" ) }, '"hello" fails' );
done_testing;
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