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#!perl -T
use 5.010;
use strict;
use warnings FATAL => 'all';
use Test::More tests => 20;
use Test::Fatal;
use Statistics::R::REXP::Symbol;
my $sym = new_ok('Statistics::R::REXP::Symbol', [ name => 'sym' ], 'new symbol' );
is($sym, $sym, 'self equality');
my $sym_2 = Statistics::R::REXP::Symbol->new(name => $sym);
is($sym, $sym_2, 'symbol equality with copy');
is(Statistics::R::REXP::Symbol->new($sym_2), $sym, 'copy constructor');
is(Statistics::R::REXP::Symbol->new('sym'), $sym, 'string constructor');
## error checking in constructor arguments
like(exception {
Statistics::R::REXP::Symbol->new([1, 2, 3])
}, qr/Attribute 'name' must be a scalar value/,
'error-check in single-arg constructor');
like(exception {
Statistics::R::REXP::Symbol->new(1, 2, 3)
}, qr/odd number of arguments/,
'odd constructor arguments');
like(exception {
Statistics::R::REXP::Symbol->new(name => [1, 2, 3])
}, qr/Attribute 'name' must be a scalar value/,
'bad name argument');
my $sym_foo = Statistics::R::REXP::Symbol->new(name => 'foo');
isnt($sym, $sym_foo, 'symbol inequality');
is($sym->name, 'sym', 'symbol name');
ok(! $sym->is_null, 'is not null');
ok(! $sym->is_vector, 'is not vector');
is($sym .'', 'symbol `sym`', 'symbol text representation');
## attributes
is_deeply($sym->attributes, undef, 'default attributes');
my $sym_attr = Statistics::R::REXP::Symbol->new(name => 'sym',
attributes => { foo => 'bar',
x => [40, 41, 42] });
is_deeply($sym_attr->attributes,
{ foo => 'bar', x => [40, 41, 42] }, 'constructed attributes');
my $sym_attr2 = Statistics::R::REXP::Symbol->new(name => 'sym',
attributes => { foo => 'bar',
x => [40, 41, 42] });
my $another_sym_attr = Statistics::R::REXP::Symbol->new(name => 'sym',
attributes => { foo => 'bar',
x => [40, 42, 42] });
is($sym_attr, $sym_attr2, 'equality considers attributes');
isnt($sym_attr, $sym, 'inequality considers attributes');
isnt($sym_attr, $another_sym_attr, 'inequality considers attributes deeply');
## attributes must be a hash
like(exception {
Statistics::R::REXP::Symbol->new(attributes => 1)
}, qr/Attribute 'attributes' must be a hash reference/,
'setting non-HASH attributes');
## Perl representation
is_deeply($sym->to_pl,
'sym', 'Perl representation');
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