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<?php /** * * Gets the installed version of ImageMagick and compares the * appropriate version to the installed version. * * * @param $testIm6Version * @param $im7Version * @return int */ function version_compare_imagemagick($testIm6Version, $im7Version) { $versionInfo = \Imagick::getVersion(); if (array_key_exists("versionString", $versionInfo) == false) { die("skip unable to determine ImageMagick version."); } $versionInstalledStringComplete = $versionInfo["versionString"]; $firstSpace = strpos($versionInstalledStringComplete, ' '); if ($firstSpace === false) { die("Failed to understand version string [$versionInstalledStringComplete] - finding first space"); } $secondSpace = strpos($versionInstalledStringComplete, ' ', $firstSpace + 1); if ($secondSpace === false) { die("Failed to understand version string [$versionInstalledStringComplete] - finding second space"); } $versionInstalledString = substr($versionInstalledStringComplete, $firstSpace + 1, $secondSpace - $firstSpace - 1); // echo "versionInstalledString is $versionInstalledString \n"; $versionToCompare = $im7Version; if (substr($versionInstalledString, 0, 1) === '6') { $versionToCompare = $testIm6Version; } return version_compare($versionInstalledString, $versionToCompare); } /** * * Compares the installed version of ImageMagick and returns true if the appropriate * version is greater * * @param $testIm6Version * @param $im7Version * @return bool */ function isVersionGreaterEqual($testIm6Version, $im7Version) { $versionCompare = version_compare_imagemagick($testIm6Version, $im7Version); // echo "version compare for $testIm6Version, $im7Version is $versionCompare \n"; if ($versionCompare >= 0) { return true; } return false; } /** * On some systems, where the standard fonts aren't available, trying * to draw any text fails as the ImageMagick default font is null. * * This function just find a 'sensible' font to use, either from the * preferred list, or just the first one from queryFonts(). That 'probably' * is the right thing to do, as it makes the tests more stable. */ function findDefaultFont() { $knownFonts = [ 'Courier', 'Helvetica', 'Times-Roman', 'Liberation-Mono', 'Utopia', ]; $fontList = \Imagick::queryFonts(); foreach ($knownFonts as $knownFont) { if (in_array($knownFont, $fontList, true) === true) { return $knownFont; } } if (count($fontList) !== 0) { return $fontList[0]; } throw new \Exception("No fonts available on system, apparently."); } // Find and set a font for the Imagick object function setFontForImagick(\Imagick $imagick) { $font = findDefaultFont(); $imagick->setFont($font); } // Find and set a font for the ImagickDraw object function setFontForImagickDraw(\ImagickDraw $imagickDraw) { $font = findDefaultFont(); $imagickDraw->setFont($font); } /** * Checks that a named value exists in an array and it matches * an expected value. */ function check_value(array $values, $name, $expected_value) { if (array_key_exists($name, $values) !== true) { $message = "Expected key '$name' not set. Array contains:\n"; $message .= var_export($values, true); throw new \Exception($message); } $value = $values[$name]; $epsilon = 0.01; if (($value < $expected_value - $epsilon) || ($value > $expected_value + $epsilon)) { $message = "Value for $name doesn't match expected. Expected: $expected_value, actual: $value"; throw new \Exception($message); } echo "Value for '$name' is $value which is close enough to expected $expected_value\n"; } /** * Checks that a named value exists in an array and it matches * one of a number of expected values. * This function exists because the expected values for Kurtosis can * change when the underlying maths changes: https://github.com/ImageMagick/ImageMagick/issues/6924 */ function check_value_posibilities(array $values, $name, array $expected_values) { if (array_key_exists($name, $values) !== true) { $message = "Expected key '$name' not set. Array contains:\n"; $message .= var_export($values, true); throw new \Exception($message); } $value = $values[$name]; $epsilon = 0.01; foreach ($expected_values as $expected_value) { if (($value > $expected_value - $epsilon) && ($value < $expected_value + $epsilon)) { echo "Value for '$name' is $value which is close enough to expected $expected_value\n"; return; } } $expected_string = implode(", ", $expected_values); $message = "Value for $name doesn't match expected possibilities. Expected one of: $expected_string, actual: $value"; throw new \Exception($message); } function check_value_with_epsilon(array $values, $name, $expected_value, $epsilon) { if (array_key_exists($name, $values) !== true) { $message = "Expected key '$name' not set. Array contains:\n"; $message .= var_export($values, true); throw new \Exception($message); } $value = $values[$name]; if (($value < $expected_value - $epsilon) || ($value > $expected_value + $epsilon)) { $message = "Value for $name doesn't match expected. Expected: $expected_value, actual: $value, epsilon = $epsilon"; throw new \Exception($message); } echo "Value for '$name' is $value which is close enough to expected $expected_value\n"; }
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