3 use Test::More tests => 68;
4 # for SEEK_SET etc, Fcntl doesn't provide these in 5.005_03
7 BEGIN { use_ok(Imager => ':all') };
9 init_log("testout/t07iolayer.log", 1);
12 # start by testing io buffer
14 my $data="P2\n2 2\n255\n 255 0\n0 255\n";
15 my $IO = Imager::io_new_buffer($data);
16 my $im = Imager::i_readpnm_wiol($IO, -1);
18 ok($im, "read from data io");
20 open(FH, ">testout/t07.ppm") or die $!;
23 my $IO2 = Imager::io_new_fd( $fd );
24 Imager::i_writeppm_wiol($im, $IO2);
28 open(FH, "<testimg/penguin-base.ppm");
32 my $IO3 = Imager::io_new_buffer($data);
34 $im = Imager::i_readpnm_wiol($IO3, -1);
36 ok($im, "read from buffer, for compare");
39 open(FH, "<testimg/penguin-base.ppm") or die $!;
42 my $IO4 = Imager::io_new_fd( $fd );
43 my $im2 = Imager::i_readpnm_wiol($IO4, -1);
47 ok($im2, "read from file, for compare");
49 is(i_img_diff($im, $im2), 0, "compare images");
52 my $IO5 = Imager::io_new_bufchain();
53 Imager::i_writeppm_wiol($im, $IO5);
54 my $data2 = Imager::io_slurp($IO5);
57 ok($data2, "check we got data from bufchain");
59 my $IO6 = Imager::io_new_buffer($data2);
60 my $im3 = Imager::i_readpnm_wiol($IO6, -1);
62 is(Imager::i_img_diff($im, $im3), 0, "read from buffer");
67 my ($size, $maxread) = @_;
68 my $out = substr($work, $pos, $maxread);
73 my ($size, $maxread) = @_;
74 my $out = substr($work, $pos, $maxread);
78 my $IO7 = Imager::io_new_cb(undef, \&io_reader, undef, undef);
79 ok($IO7, "making readcb object");
80 my $im4 = Imager::i_readpnm_wiol($IO7, -1);
81 ok($im4, "read from cb");
82 ok(Imager::i_img_diff($im, $im4) == 0, "read from cb image match");
85 $IO7 = Imager::io_new_cb(undef, \&io_reader2, undef, undef);
86 ok($IO7, "making short readcb object");
87 my $im5 = Imager::i_readpnm_wiol($IO7, -1);
88 ok($im4, "read from cb2");
89 is(Imager::i_img_diff($im, $im5), 0, "read from cb2 image match");
93 substr($work, $pos, $pos+length $what) = $what;
104 my $IO8 = Imager::io_new_cb(\&io_writer, undef, undef, \&io_close);
105 ok($IO8, "making writecb object");
108 ok(Imager::i_writeppm_wiol($im, $IO8), "write to cb");
109 # I originally compared this to $data, but that doesn't include the
111 is($work, $data2, "write image match");
112 ok($did_close, "did close");
114 # with a short buffer, no closer
115 my $IO9 = Imager::io_new_cb(\&io_writer, undef, undef, undef, 1);
116 ok($IO9, "making short writecb object");
119 ok(Imager::i_writeppm_wiol($im, $IO9), "write to short cb");
120 is($work, $data2, "short write image match");
123 my $buf_data = "Test data";
124 my $io9 = Imager::io_new_buffer($buf_data);
125 is(ref $io9, "Imager::IO", "check class");
127 is($io9->read($work, 4), 4, "read 4 from buffer object");
128 is($work, "Test", "check data read");
129 is($io9->read($work, 5), 5, "read the rest");
130 is($work, " data", "check data read");
131 is($io9->seek(5, SEEK_SET), 5, "seek");
132 is($io9->read($work, 5), 4, "short read");
133 is($work, "data", "check data read");
134 is($io9->seek(-1, SEEK_CUR), 8, "seek relative");
135 is($io9->seek(-5, SEEK_END), 4, "seek relative to end");
136 is($io9->seek(-10, SEEK_CUR), -1, "seek failure");
140 my $io = Imager::io_new_bufchain();
141 is(ref $io, "Imager::IO", "check class");
142 is($io->write("testdata"), 8, "check write");
143 is($io->seek(-8, SEEK_CUR), 0, "seek relative");
145 is($io->read($work, 8), 8, "check read");
146 is($work, "testdata", "check data read");
147 is($io->seek(-3, SEEK_END), 5, "seek end relative");
148 is($io->read($work, 5), 3, "short read");
149 is($work, "ata", "check read data");
150 is($io->seek(4, SEEK_SET), 4, "absolute seek to write some");
151 is($io->write("testdata"), 8, "write");
152 is($io->seek(0, SEEK_CUR), 12, "check size");
156 my $data = Imager::io_slurp($io);
157 is($data, "testtestdata", "check we have the right data");
160 { # callback failure checks
161 my $fail_io = Imager::io_new_cb(\&fail_write, \&fail_read, \&fail_seek, undef, 1);
164 my $read_result = $fail_io->read($buffer, 10);
165 is($read_result, undef, "read failure undef in scalar context");
166 my @read_result = $fail_io->read($buffer, 10);
167 is(@read_result, 0, "empty list in list context");
168 $read_result = $fail_io->read2(10);
169 is($read_result, undef, "read2 failure (scalar)");
170 @read_result = $fail_io->read2(10);
171 is(@read_result, 0, "read2 failure (list)");
173 my $write_result = $fail_io->write("test");
174 is($write_result, -1, "failed write");
176 my $seek_result = $fail_io->seek(-1, SEEK_SET);
177 is($seek_result, -1, "failed seek");
180 { # callback success checks
181 my $good_io = Imager::io_new_cb(\&good_write, \&good_read, \&good_seek, undef, 1);
184 my $read_result = $good_io->read($buffer, 10);
185 is($read_result, 10, "read success (scalar)");
186 is($buffer, "testdatate", "check data");
187 my @read_result = $good_io->read($buffer, 10);
188 is_deeply(\@read_result, [ 10 ], "read success (list)");
189 is($buffer, "testdatate", "check data");
190 $read_result = $good_io->read2(10);
191 is($read_result, "testdatate", "read2 success (scalar)");
192 @read_result = $good_io->read2(10);
193 is_deeply(\@read_result, [ "testdatate" ], "read2 success (list)");
197 my $eof_io = Imager::io_new_cb(undef, \&eof_read, undef, undef, 1);
199 my $read_result = $eof_io->read($buffer, 10);
200 is($read_result, 0, "read eof (scalar)");
201 is($buffer, '', "check data");
202 my @read_result = $eof_io->read($buffer, 10);
203 is_deeply(\@read_result, [ 0 ], "read eof (list)");
204 is($buffer, '', "check data");
208 my $none_io = Imager::io_new_cb(undef, undef, undef, undef, 0);
209 is($none_io->write("test"), -1, "write with no writecb should fail");
211 is($none_io->read($buffer, 10), undef, "read with no readcb should fail");
212 is($none_io->seek(0, SEEK_SET), -1, "seek with no seekcb should fail");
216 { # make sure we croak when trying to write a string with characters over 0xff
217 # the write callback shouldn't get called
218 skip("no native UTF8 support in this version of perl", 2)
220 my $io = Imager::io_new_cb(\&good_write, undef, undef, 1);
221 my $data = chr(0x100);
222 is(ord $data, 0x100, "make sure we got what we expected");
227 ok($@, "should have croaked")
231 { # 0.52 left some debug code in a path that wasn't tested, make sure
232 # that path is tested
233 # http://rt.cpan.org/Ticket/Display.html?id=20705
234 my $io = Imager::io_new_cb
237 print "# write $_[0]\n";
241 print "# read $_[0], $_[1]\n";
244 sub { print "# seek\n"; 0 },
245 sub { print "# close\n"; 1 });
247 is($io->read($buffer, 10), 10, "read 10");
248 is($buffer, "xxxxxxxxxx", "read value");
249 ok($io->write("foo"), "write");
250 is($io->close, 0, "close");
262 my $data = "testdata";
263 length $data <= $max_len or substr($data, $max_len) = '';
265 print "# good_read ($max_len) => $data\n";