function SmartcropTestCase::assertImageEqual in Smart Crop 7

Same name and namespace in other branches

1. 6 tests/smartcrop.test \SmartcropTestCase::assertImageEqual()

Assert that two images are the same, with some difference allowed to account for e.g. compression artifacts.

Parameters

$image1 A GD image resource.:

$image2 A GD image resource.:

$max_diff (optional) The maximum allowed difference, range from 0 to 255, defaults to 1.:

$message (optional) The message to display along with the assertion.:

3 calls to SmartcropTestCase::assertImageEqual()

SmartcropTestCase::testCrop in tests/smartcrop.test

SmartcropTestCase::testImageEqual in tests/smartcrop.test

Test the ImageEqual assertions.

SmartcropTestCase::testScaleAndCrop in tests/smartcrop.test

Test cropping of images with known properties.

File

tests/smartcrop.test, line 177

Tests for the smartcrop module.

Class

SmartcropTestCase

@file Tests for the smartcrop module.

Code

function assertImageEqual($image1, $image2, $max_diff = 1, $message = NULL) {
  if (empty($message)) {
    $message = t('Images are equal.');
  }
  $difference = $this
    ->difference($image1, $image2);
  $mean = $this
    ->mean($difference);
  $this
    ->assertTrue($mean < $max_diff, $message);
  imagedestroy($difference);
}