2 # some of this is tested in t01introvert.t too
5 use Test::More tests => 75;
6 BEGIN { use_ok("Imager"); }
8 my $img = Imager->new(xsize=>50, ysize=>50, type=>'paletted');
10 ok($img, "paletted image created");
12 ok($img->type eq 'paletted', "got a paletted image");
14 my $black = Imager::Color->new(0,0,0);
15 my $red = Imager::Color->new(255,0,0);
16 my $green = Imager::Color->new(0,255,0);
17 my $blue = Imager::Color->new(0,0,255);
19 my $white = Imager::Color->new(255,255,255);
22 my $blacki = $img->addcolors(colors=>[ $black, $red, $green, $blue ]);
24 print "# blacki $blacki\n";
25 ok(defined $blacki && $blacki == 0, "we got the first color");
27 ok($img->colorcount() == 4, "should have 4 colors");
28 my ($redi, $greeni, $bluei) = 1..3;
30 my @all = $img->getcolors;
31 ok(@all == 4, "all colors is 4");
32 coloreq($all[0], $black, "first black");
33 coloreq($all[1], $red, "then red");
34 coloreq($all[2], $green, "then green");
35 coloreq($all[3], $blue, "and finally blue");
37 # keep this as an assignment, checking for scalar context
38 # we don't want the last color, otherwise if the behaviour changes to
39 # get all up to the last (count defaulting to size-index) we'd get a
41 my $one_color = $img->getcolors(start=>$redi);
42 ok($one_color->isa('Imager::Color'), "check scalar context");
43 coloreq($one_color, $red, "and that it's what we want");
45 # make sure we can find colors
46 ok(!defined($img->findcolor(color=>$white)),
47 "shouldn't be able to find white");
48 ok($img->findcolor(color=>$black) == $blacki, "find black");
49 ok($img->findcolor(color=>$red) == $redi, "find red");
50 ok($img->findcolor(color=>$green) == $greeni, "find green");
51 ok($img->findcolor(color=>$blue) == $bluei, "find blue");
53 # various failure tests for setcolors
54 ok(!defined($img->setcolors(start=>-1, colors=>[$white])),
55 "expect failure: low index");
56 ok(!defined($img->setcolors(start=>1, colors=>[])),
57 "expect failure: no colors");
58 ok(!defined($img->setcolors(start=>5, colors=>[$white])),
59 "expect failure: high index");
61 # set the green index to white
62 ok($img->setcolors(start => $greeni, colors => [$white]),
65 coloreq(scalar($img->getcolors(start=>$greeni)), $white,
66 "make sure it was set");
67 ok($img->findcolor(color=>$white) == $greeni, "and that we can find it");
68 ok(!defined($img->findcolor(color=>$green)), "and can't find the old color");
71 ok(scalar($img->setcolors(start=>$redi, colors=>[ $green, $red])),
73 coloreq(scalar($img->getcolors(start=>$redi)), $green, "first of multiple");
74 coloreq(scalar($img->getcolors(start=>$greeni)), $red, "second of multiple");
77 $img->setcolors(start=>$red, colors=>[$red, $green]);
79 # draw on the image, make sure it stays paletted when it should
80 ok($img->box(color=>$red, filled=>1), "fill with red");
81 ok($img->type eq 'paletted', "paletted after fill");
82 ok($img->box(color=>$green, filled=>1, xmin=>10, ymin=>10,
83 xmax=>40, ymax=>40), "green box");
84 ok($img->type eq 'paletted', 'still paletted after box');
85 # an AA line will almost certainly convert the image to RGB, don't use
87 ok($img->line(color=>$blue, x1=>10, y1=>10, x2=>40, y2=>40),
89 ok($img->type eq 'paletted', 'still paletted after line');
91 # draw with white - should convert to direct
92 ok($img->box(color=>$white, filled=>1, xmin=>20, ymin=>20,
93 xmax=>30, ymax=>30), "white box");
94 ok($img->type eq 'direct', "now it should be direct");
96 # various attempted to make a paletted image from our now direct image
97 my $palimg = $img->to_paletted;
98 ok($palimg, "we got an image");
99 # they should be the same pixel for pixel
100 ok(Imager::i_img_diff($img->{IMG}, $palimg->{IMG}) == 0, "same pixels");
102 # strange case: no color picking, and no colors
103 # this was causing a segmentation fault
104 $palimg = $img->to_paletted(colors=>[ ], make_colors=>'none');
105 ok(!defined $palimg, "to paletted with an empty palette is an error");
106 print "# ",$img->errstr,"\n";
107 ok(scalar($img->errstr =~ /no colors available for translation/),
108 "and got the correct msg");
110 ok(!Imager->new(xsize=>1, ysize=>-1, type=>'paletted'),
111 "fail on -ve height");
112 cmp_ok(Imager->errstr, '=~', qr/Image sizes must be positive/,
113 "and correct error message");
114 ok(!Imager->new(xsize=>-1, ysize=>1, type=>'paletted'),
115 "fail on -ve width");
116 cmp_ok(Imager->errstr, '=~', qr/Image sizes must be positive/,
117 "and correct error message");
118 ok(!Imager->new(xsize=>-1, ysize=>-1, type=>'paletted'),
119 "fail on -ve width/height");
120 cmp_ok(Imager->errstr, '=~', qr/Image sizes must be positive/,
121 "and correct error message");
123 ok(!Imager->new(xsize=>1, ysize=>1, type=>'paletted', channels=>0),
124 "fail on 0 channels");
125 cmp_ok(Imager->errstr, '=~', qr/Channels must be positive and <= 4/,
126 "and correct error message");
127 ok(!Imager->new(xsize=>1, ysize=>1, type=>'paletted', channels=>5),
128 "fail on 5 channels");
129 cmp_ok(Imager->errstr, '=~', qr/Channels must be positive and <= 4/,
130 "and correct error message");
133 # https://rt.cpan.org/Ticket/Display.html?id=8213
134 # check for handling of memory allocation of very large images
135 # only test this on 32-bit machines - on a 64-bit machine it may
136 # result in trying to allocate 4Gb of memory, which is unfriendly at
137 # least and may result in running out of memory, causing a different
142 skip("don't want to allocate 4Gb", 10)
143 unless $Config{intsize} == 4;
145 my $uint_range = 256 ** $Config{intsize};
146 my $dim1 = int(sqrt($uint_range))+1;
148 my $im_b = Imager->new(xsize=>$dim1, ysize=>$dim1, channels=>1, type=>'paletted');
149 is($im_b, undef, "integer overflow check - 1 channel");
151 $im_b = Imager->new(xisze=>$dim1, ysize=>1, channels=>1, type=>'paletted');
152 ok($im_b, "but same width ok");
153 $im_b = Imager->new(xisze=>1, ysize=>$dim1, channels=>1, type=>'paletted');
154 ok($im_b, "but same height ok");
155 cmp_ok(Imager->errstr, '=~', qr/integer overflow/,
156 "check the error message");
158 # do a similar test with a 3 channel image, so we're sure we catch
159 # the same case where the third dimension causes the overflow
160 # for paletted images the third dimension can't cause an overflow
161 # but make sure we didn't anything too dumb in the checks
164 $im_b = Imager->new(xsize=>$dim3, ysize=>$dim3, channels=>3, type=>'paletted');
165 is($im_b, undef, "integer overflow check - 3 channel");
167 $im_b = Imager->new(xsize=>$dim3, ysize=>1, channels=>3, type=>'paletted');
168 ok($im_b, "but same width ok");
169 $im_b = Imager->new(xsize=>1, ysize=>$dim3, channels=>3, type=>'paletted');
170 ok($im_b, "but same height ok");
172 cmp_ok(Imager->errstr, '=~', qr/integer overflow/,
173 "check the error message");
175 # test the scanline allocation check
176 # divide by 2 to get int range, by 3 so that the image (one byte/pixel)
177 # doesn't integer overflow, but the scanline of i_color (4/pixel) does
178 my $dim4 = $uint_range / 2 / 3;
179 my $im_o = Imager->new(xsize=>$dim4, ysize=>1, channels=>3, type=>'paletted');
180 is($im_o, undef, "integer overflow check - scanline size");
181 cmp_ok(Imager->errstr, '=~',
182 qr/integer overflow calculating scanline allocation/,
183 "check error message");
187 { # http://rt.cpan.org/NoAuth/Bug.html?id=9672
189 local $SIG{__WARN__} =
192 my $printed = $warning;
194 $printed =~ s/\n/\n\#/g;
195 print "# ",$printed, "\n";
197 my $img = Imager->new(xsize=>10, ysize=>10);
199 cmp_ok($warning, '=~', 'void', "correct warning");
200 cmp_ok($warning, '=~', 't023palette\\.t', "correct file");
203 { # http://rt.cpan.org/NoAuth/Bug.html?id=12676
204 # setcolors() has a fencepost error
205 my $img = Imager->new(xsize=>10, ysize=>10, type=>'paletted');
207 is($img->addcolors(colors=>[ $black, $red ]), "0 but true",
209 ok($img->setcolors(start=>1, colors=>[ $green ]), "set the last color");
210 ok(!$img->setcolors(start=>2, colors=>[ $black ]),
211 "set after the last color");
214 { # https://rt.cpan.org/Ticket/Display.html?id=20056
215 # added named color support to addcolor/setcolor
216 my $img = Imager->new(xsize => 10, ysize => 10, type => 'paletted');
217 is($img->addcolors(colors => [ qw/000000 FF0000/ ]), "0 but true",
218 "add colors as strings instead of objects");
219 my @colors = $img->getcolors;
220 iscolor($colors[0], $black, "check first color");
221 iscolor($colors[1], $red, "check second color");
222 ok($img->setcolors(colors => [ qw/00FF00 0000FF/ ]),
223 "setcolors as strings instead of objects");
224 @colors = $img->getcolors;
225 iscolor($colors[0], $green, "check first color");
226 iscolor($colors[1], $blue, "check second color");
228 # make sure we handle bad colors correctly
229 is($img->colorcount, 2, "start from a known state");
230 is($img->addcolors(colors => [ 'XXFGXFXGXFX' ]), undef,
231 "fail to add unknown color");
232 is($img->errstr, 'No color named XXFGXFXGXFX found', 'check error message');
233 is($img->setcolors(colors => [ 'XXFGXFXGXFXZ' ]), undef,
234 "fail to set to unknown color");
235 is($img->errstr, 'No color named XXFGXFXGXFXZ found', 'check error message');
239 my ($c1, $c2, $msg) = @_;
241 my $builder = Test::Builder->new;
244 if (!$builder->ok($c1[0] == $c2[0] && $c1[1] == $c2[1] && $c1[2] == $c2[2],
246 $builder->diag(<<DIAG);
248 expected color: [ @c2 ]
254 my ($left, $right, $comment) = @_;
256 my ($rl, $gl, $bl, $al) = $left->rgba;
257 my ($rr, $gr, $br, $ar) = $right->rgba;
259 print "# comparing color($rl,$gl,$bl,$al) with ($rr,$gr,$br,$ar)\n";
260 ok($rl == $rr && $gl == $gr && $bl == $br && $al == $ar,