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| author | Christoph M. Becker <cmbecker69@gmx.de> | 2017-01-22 15:01:01 +0100 |
|---|---|---|
| committer | Christoph M. Becker <cmbecker69@gmx.de> | 2017-01-22 15:01:01 +0100 |
| commit | 71efe9d8fd0b7486c2943d267c68dcefc6c406b1 (patch) | |
| tree | 1fd4f997fdb5e3022fd419a0c9aa245080643073 | |
| parent | e56fe7e5e7a926bfdf142a7a844544c0127e92b7 (diff) | |
| download | php-git-71efe9d8fd0b7486c2943d267c68dcefc6c406b1.tar.gz | |
Add regression test for bug #47946
This bug had already been fixed, but apparently there's no regression
test yet, so we add one.
Note that the expected image has black pixel artifacts, which are
another issue (perhaps bug #40158), and would have to be adressed
separately.
| -rw-r--r-- | ext/gd/tests/bug47946.phpt | 51 | ||||
| -rw-r--r-- | ext/gd/tests/bug47946_exp.png | bin | 0 -> 396 bytes |
2 files changed, 51 insertions, 0 deletions
diff --git a/ext/gd/tests/bug47946.phpt b/ext/gd/tests/bug47946.phpt new file mode 100644 index 0000000000..c84508509c --- /dev/null +++ b/ext/gd/tests/bug47946.phpt @@ -0,0 +1,51 @@ +--TEST--
+Bug #47946 (ImageConvolution overwrites background)
+--DESCRIPTION--
+The expected image has black pixel artifacts, what is another issue, though
+(perhaps #40158).
+--SKIPIF--
+<?php
+if (!extension_loaded('gd')) die('skip gd extension not available');
+?>
+--FILE--
+<?php
+function array_flatten($array)
+{
+ $tempArray = array();
+
+ foreach ($array as $value) {
+ if (is_array($value)) {
+ $tempArray = array_merge($tempArray, array_flatten($value));
+ } else {
+ $tempArray[] = $value;
+ }
+ }
+
+ return $tempArray;
+}
+
+function makeFilter($resource, $matrix, $offset = 1.0)
+{
+ $divisor = array_sum(array_flatten($matrix));
+ if ($divisor == 0) {
+ $divisor = .01;
+ }
+ return imageconvolution($resource, $matrix, $divisor, $offset);
+}
+
+$edgeMatrix = array(array(1, 0, 1), array(0, 5, 0), array(1, 0, 1));
+
+$im = imagecreatetruecolor(40, 40);
+imagealphablending($im, false);
+imagefilledrectangle($im, 0, 0, 39, 39, 0x7fffffff);
+imagefilledellipse($im, 19, 19, 20, 20, 0x00ff00);
+imagesavealpha($im, true);
+makeFilter($im, $edgeMatrix);
+
+require_once __DIR__ . '/func.inc';
+test_image_equals_file(__DIR__ . '/bug47946_exp.png', $im);
+?>
+===DONE===
+--EXPECT--
+The images are equal.
+===DONE===
diff --git a/ext/gd/tests/bug47946_exp.png b/ext/gd/tests/bug47946_exp.png Binary files differnew file mode 100644 index 0000000000..7eb462dd88 --- /dev/null +++ b/ext/gd/tests/bug47946_exp.png |
