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#!/usr/bin/perl
use v5.14;
use warnings;
use Test2::V0;
use lib "t";
use testcase "t::pieces";
BEGIN { $^H{"t::pieces/permit"} = 1; }
my $ret;
{
$ret = piecetermexpr "a term";
is( $ret, "(a term)", 'a single term' );
}
# termexpr vs concat
{
$ret = piecetermexpr "x" . "y";
is( $ret, "(xy)", 'termexpr consumes concat' );
}
# termexpr vs comma
{
$ret = join "", "x", piecetermexpr "inside", "y";
is( $ret, "x(inside)y", 'termexpr stops before comma' );
}
# termexpr in piece1 can act as entire parens
{
$ret = piecetermexpr( "x" ) . "y";
is( $ret, "(x)y", 'termexpr treats (PARENS) as entire expression' );
}
# termexpr in piece1 can act as eat empty parens
{
no warnings 'uninitialized';
$ret = piecetermexpr() . "y";
is( $ret, "()y", 'termexpr accepts empty (PARENS)' );
}
{
$ret = pieceprefixedtermexpr_VAR $VAR . ", world!";
is( $ret, "(Hello, world!)", 'result of pieceprefixedtermexpr_VAR' );
}
# optional termexpr
{
my $ret1 = piecetermexpr_opt "term";
my $ret2 = piecetermexpr_opt;
is( $ret1, "(term)", 'optional termexpr with value' );
is( $ret2, undef, 'optional termexpr empty' );
}
done_testing;
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