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|
#!perl -T
use 5.010;
use strict;
use warnings FATAL => 'all';
use Test::More tests => 9;
use Test::Fatal;
use Statistics::R::IO::Parser qw(:all);
use Statistics::R::IO::ParserState;
my $state = Statistics::R::IO::ParserState->new(data => 'foobar');
subtest 'characters' => sub {
plan tests => 10;
## any_char parser
is_deeply(any_char($state),
['f',
Statistics::R::IO::ParserState->new(data => 'foobar',
position => 1,
singletons => [])], # bypass lazy attribute ctor
'any_char');
is_deeply(any_char($state->next->next->next->next->next->next),
undef,
'any_char at eof');
## char parser
my $f_char = char('f');
is_deeply($f_char->($state),
['f',
Statistics::R::IO::ParserState->new(data => 'foobar',
position => 1,
singletons => [])], # bypass lazy attribute ctor
'char');
is($f_char->($state->next),
undef, 'char doesn\'t match');
is($f_char->($state->next->next->next->next->next->next),
undef, 'char at eof');
like(exception { char('foo') },
qr/Must be a single-char argument/, "bad 'char' argument");
## string parser
my $foo_string = string('foo');
is_deeply($foo_string->($state),
['foo',
Statistics::R::IO::ParserState->new(data => 'foobar',
position => 3,
singletons => [])], # bypass lazy attribute ctor
'string');
is($foo_string->($state->next),
undef, 'string doesn\'t match');
is($foo_string->($state->next->next->next->next->next->next),
undef, 'string at eof');
like(exception { string(['foo']) },
qr/Must be a scalar argument/, "bad 'string' argument");
};
subtest 'int parsers' => sub {
plan tests => 20;
## any_uint
my $num_state = Statistics::R::IO::ParserState->new(data => pack('N', 0x12345678));
is(any_uint8($num_state)->[0], 0x12,
'any_uint8');
is(any_uint8(any_uint8($num_state)->[1])->[0], 0x34,
'second any_uint8');
is(any_uint16($num_state)->[0], 0x1234,
'any_uint16');
is(any_uint16(any_uint16($num_state)->[1])->[0], 0x5678,
'second any_uint16');
is(any_uint24($num_state)->[0], 0x123456,
'any_uint24');
is(any_uint24(any_uint24($num_state)->[1]), undef,
'second any_uint24');
is(any_uint32($num_state)->[0], 0x12345678,
'any_uint32');
is(any_uint32(any_uint32($num_state)->[1]), undef,
'second any_uint32');
## uint
is(uint8(0x12)->($num_state)->[0], 0x12,
'uint8');
is(uint8(0x34)->(uint8(0x12)->($num_state)->[1])->[0], 0x34,
'second uint8');
is(uint8(0x10)->($num_state), undef,
'uint8 fails');
is(uint16(0x1234)->($num_state)->[0], 0x1234,
'uint16');
is(uint16(0x5678)->(uint16(0x1234)->($num_state)->[1])->[0], 0x5678,
'second uint16');
is(uint16(0x1010)->($num_state), undef,
'uint16 fails');
is(uint24(0x123456)->($num_state)->[0], 0x123456,
'uint24');
is(uint24(0x78)->(uint24(0x123456)->($num_state)->[1]), undef,
'second uint24');
is(uint24(0x1010)->($num_state), undef,
'uint24 fails');
is(uint32(0x12345678)->($num_state)->[0], 0x12345678,
'uint32');
is(uint32(0)->(uint32(0x12345678)->($num_state)->[1]), undef,
'second uint32');
is(uint32(0x1010)->($num_state), undef,
'uint32 fails');
};
subtest 'signed int parsers' => sub {
plan tests => 18;
my $signed_num_state = Statistics::R::IO::ParserState->new(data => pack('N', 0x12bacafe));
## any_int
is(any_int8($signed_num_state)->[0],
0x12, 'any_int8');
is(any_int8($signed_num_state->next->next)->[0],
-54, 'negative any_int8');
is(any_int16($signed_num_state)->[0],
0x12ba, 'any_int16');
is(any_int16($signed_num_state->next->next)->[0],
-13570, 'negative any_int16');
is(any_int24($signed_num_state)->[0],
0x12baca, 'any_int24');
is(any_int24($signed_num_state->next)->[0],
-4535554, 'negative any_int24');
is(any_int32($signed_num_state)->[0],
0x12bacafe, 'any_int32');
is(any_int32(Statistics::R::IO::ParserState->new(data => pack('N', 0xbabecafe)))->[0],
-1161901314, 'negative any_int32');
is(any_int32(any_int32($signed_num_state)->[1]),
undef, 'failed any_int32');
## int
is(int8(0x12)->($signed_num_state)->[0],
0x12, 'int8');
is(int8(unpack c=>"\xca")->($signed_num_state->next->next)->[0],
-54, 'negative int8');
is(int16(0x12ba)->($signed_num_state)->[0],
0x12ba, 'int16');
is(int16(unpack 's>'=>"\xca\xfe")->($signed_num_state->next->next)->[0],
-13570, 'negative any_int16');
is(int24(0x12baca)->($signed_num_state)->[0],
0x12baca, 'int24');
is(int24(unpack 'l>'=>"\xff\xba\xca\xfe")->($signed_num_state->next)->[0],
-4535554, 'negative int24');
is(int32(0x12bacafe)->($signed_num_state)->[0],
0x12bacafe, 'int32');
is(int32(unpack 'l>'=>"\xba\xbe\xca\xfe")->
(Statistics::R::IO::ParserState->new(data => pack('N', 0xbabecafe)))->[0],
-1161901314, 'negative int32');
is(int32(0x00bacafe)->($signed_num_state->next),
undef, 'failed int32');
};
subtest 'floating point parsers' => sub {
plan tests => 2;
is(any_real32(Statistics::R::IO::ParserState->new(data => "\x45\xcc\x79\0"))->[0],
6543.125, 'any_real32');
is(any_real64(Statistics::R::IO::ParserState->new(data => "\x40\x93\x4a\x45\x6d\x5c\xfa\xad"))->[0],
unpack('d', pack('d', 1234.5678)), 'any_real64');
};
subtest 'NAs' => sub {
plan tests => 4;
my $signed_num_state = Statistics::R::IO::ParserState->new(data => pack('N', 0x12bacafe));
is(any_int32_na->($signed_num_state)->[0],
0x12bacafe, 'any_int32_na');
my $int_na = Statistics::R::IO::ParserState->new(data => "\x80\0\0\0");
is(any_int32_na->($int_na)->[0],
undef, 'int NA');
is(any_real64_na->(Statistics::R::IO::ParserState->new(data => "\x40\x93\x4a\x45\x6d\x5c\xfa\xad"))->[0],
unpack('d', pack('d', 1234.5678)), 'any_real64_na');
my $real_na = Statistics::R::IO::ParserState->new(data => "\x7f\xf0\0\0\0\0\7\xa2");
is(any_real64_na->($real_na)->[0],
undef, 'real NA')
};
subtest 'endianness' => sub {
plan tests => 23;
is(endianness, '>',
'get endianness');
is(endianness('<'), '<',
'set endianness');
is(endianness('bla'), '<',
'ignore bad endianness value');
my $num_state = Statistics::R::IO::ParserState->new(data => pack('N', 0x12345678));
is(any_uint16($num_state)->[0], 0x3412,
'any_uint16 little endian');
is(any_uint16(any_uint16($num_state)->[1])->[0], 0x7856,
'second any_uint16 little endian');
is(any_uint24($num_state)->[0], 0x563412,
'any_uint24 little endian');
is(any_uint24(any_uint24($num_state)->[1]), undef,
'second any_uint24 little endian');
is(any_uint32($num_state)->[0], 0x78563412,
'any_uint32 little endian');
is(any_uint32(any_uint32($num_state)->[1]), undef,
'second any_uint32 little endian');
## little-endian uint's
is(uint8(0x12)->($num_state)->[0], 0x12,
'little-endian uint8');
is(uint8(0x34)->(uint8(0x12)->($num_state)->[1])->[0], 0x34,
'second little-endian uint8');
is(uint8(0x10)->($num_state), undef,
'little-endian uint8 fails');
is(uint16(0x3412)->($num_state)->[0], 0x3412,
'little-endian uint16');
is(uint16(0x7856)->(uint16(0x3412)->($num_state)->[1])->[0], 0x7856,
'second little-endian uint16');
is(uint16(0x1010)->($num_state), undef,
'little-endian uint16 fails');
is(uint24(0x563412)->($num_state)->[0], 0x563412,
'little-endian uint24');
is(uint24(0x78)->(uint24(0x563412)->($num_state)->[1]), undef,
'second little-endian uint24');
is(uint24(0x1010)->($num_state), undef,
'little-endian uint24 fails');
is(uint32(0x78563412)->($num_state)->[0], 0x78563412,
'little-endian uint32');
is(uint32(0)->(uint32(0x78563412)->($num_state)->[1]), undef,
'second little-endian uint32');
is(uint32(0x1010)->($num_state), undef,
'little-endian uint32 fails');
is(any_real32(Statistics::R::IO::ParserState->new(data => "\0\x79\xcc\x45"))->[0],
6543.125, 'any_real32 little endian');
is(any_real64(Statistics::R::IO::ParserState->new(data => "\xad\xfa\x5c\x6d\x45\x4a\x93\x40"))->[0],
unpack('d', pack('d', 1234.5678)), 'any_real64 little endian');
};
subtest 'monad' => sub {
plan tests => 4;
## mreturn
is_deeply(mreturn('foobar')->($state),
[ 'foobar', $state ],
'mreturn');
## bind
my $len_chars_bind = bind(
\&any_uint8,
sub {
my $n = shift or return;
count($n, \&any_uint8)
});
is_deeply($len_chars_bind->(Statistics::R::IO::ParserState->new(data => "\3\x2a\7\0"))->[0],
[42, 7, 0],
'bind');
is($len_chars_bind->(Statistics::R::IO::ParserState->new(data => "\3\x2a\7")),
undef, 'bind fails');
## error
like(exception {
error('foobar-ed')->($state->next)
}, qr/foobar-ed \(at 1\)/,
'error');
};
subtest 'combinators' => sub {
plan tests => 14;
## seq
my $f_oob_seq = seq(char('f'),
string('oob'));
is_deeply($f_oob_seq->($state),
[['f', 'oob'],
Statistics::R::IO::ParserState->new(data => 'foobar',
position => 4,
singletons => [])], # bypass lazy attribute ctor
'seq');
is($f_oob_seq->($state->next),
undef, 'seq fails');
## many_till
my $many_o_till_b = many_till(char('o'),
char('b'));
is_deeply($many_o_till_b->($state->next),
[['o', 'o'],
Statistics::R::IO::ParserState->new(data => 'foobar',
position => 3,
singletons => [])], # bypass lazy attribute ctor
'many_till');
is($many_o_till_b->($state),
undef, 'many_till fails');
## choose
my $f_oob_choose = choose(char('f'),
string('oob'),
char('o'));
is_deeply($f_oob_choose->($state),
['f',
Statistics::R::IO::ParserState->new(data => 'foobar',
position => 1,
singletons => [])], # bypass lazy attribute ctor
'seq first');
is_deeply($f_oob_choose->($state->next),
['oob',
Statistics::R::IO::ParserState->new(data => 'foobar',
position => 4,
singletons => [])], # bypass lazy attribute ctor
'seq second');
is($f_oob_choose->($state->next->next->next),
undef, 'choose fails');
## count
is_deeply(count(3, \&any_char)->($state),
[['f', 'o', 'o'],
Statistics::R::IO::ParserState->new(data => 'foobar',
position => 3,
singletons => [])], # bypass lazy attribute ctor
'count 3 any_char');
is_deeply(count(0, \&any_char)->($state),
[[],
Statistics::R::IO::ParserState->new(data => 'foobar',
position => 0,
singletons => [])], # bypass lazy attribute ctor
'count 0 any_char');
is(count(7, \&any_char)->($state), undef,
'count fails');
## with_count
endianness('>');
is_deeply(with_count(\&any_uint8,
\&any_uint8)->(Statistics::R::IO::ParserState->new(data => "\3\x2a\7\0"))->[0],
[42, 7, 0],
'with_count');
is_deeply(with_count(\&any_real64)->
(Statistics::R::IO::ParserState->new(data => "\0\0\0\1\x40\x93\x4a\x3d\x70\xa3\xd7\x0a"))->[0],
[ unpack('d', pack('d', 1234.56)) ],
'with_count default counter');
is_deeply(with_count(\&any_uint)->
(Statistics::R::IO::ParserState->new(data => "\0\0\0\0"))->[0],
[ ],
'with_count zero counter');
is(with_count(\&any_uint8,
\&any_uint8)->(Statistics::R::IO::ParserState->new(data => "\3\x2a\7")),
undef, 'with_count fails');
};
subtest 'singletons' => sub {
plan tests => 3;
## add_singleton
is_deeply(add_singleton('baz')->($state),
[ 'baz',
Statistics::R::IO::ParserState->new(data => 'foobar',
position => 0, # bypass lazy attribute ctor
singletons => [ 'baz' ])],
'add_singleton');
## reserve_singleton will preallocate a singleton that get the value
## 'baz' at the end
is_deeply(reserve_singleton(bind(add_singleton('foo'),
sub {
mreturn('baz')
}))->($state),
[ 'baz',
Statistics::R::IO::ParserState->new(data => 'foobar',
position => 0, # bypass lazy attribute ctor
singletons => [ 'baz', 'foo' ])],
'reserve_singleton');
is_deeply(get_singleton(0)->(add_singleton('bla')->($state)->[1]),
[ 'bla',
Statistics::R::IO::ParserState->new(data => 'foobar',
position => 0, # bypass lazy attribute ctor
singletons => [ 'bla' ])],
'get_singleton');
};
|
