public function testImageResizing(){
// Start with this 1024x768 image.
$file = new \Core\Filestore\Backends\FileLocal('core/tests/ivak_TV_Test_Screen.png');
// Basic resize will scale large images down but will not scale small images up.
$test = $file->getPreviewFile('32x32');
$this->assertTrue($test->isImage());
$dimensions = getimagesize($test->getFilename());
$this->assertEquals(32, $dimensions[0]);
$this->assertEquals(24, $dimensions[1]);
// Basic resize will scale down images if one of the dimensions is greater than the requested.
$test = $file->getPreviewFile('800x800');
$this->assertTrue($test->isImage());
$dimensions = getimagesize($test->getFilename());
$this->assertEquals(800, $dimensions[0]);
$this->assertEquals(600, $dimensions[1]);
// Basic resize will NOT scale up an image.
$test = $file->getPreviewFile('2048x2048');
$this->assertTrue($test->isImage());
$dimensions = getimagesize($test->getFilename());
$this->assertEquals(1024, $dimensions[0]);
$this->assertEquals(768, $dimensions[1]);
// Force-Constraint forces the constraint regardless of original image source.
$test = $file->getPreviewFile('32x32!');
$this->assertTrue($test->isImage());
$dimensions = getimagesize($test->getFilename());
$this->assertEquals(32, $dimensions[0]);
$this->assertEquals(32, $dimensions[1]);
// Force-Constraint forces the constraint regardless of original image source.
$test = $file->getPreviewFile('1040x1040!');
$this->assertTrue($test->isImage());
$dimensions = getimagesize($test->getFilename());
$this->assertEquals(1040, $dimensions[0]);
$this->assertEquals(1040, $dimensions[1]);
// Fill area will scale up to match the smallest dimension.
$test = $file->getPreviewFile('800x800^');
$this->assertTrue($test->isImage());
$dimensions = getimagesize($test->getFilename());
$this->assertEquals(1067, $dimensions[0]);
$this->assertEquals(800, $dimensions[1]);
// Fill area will scale up to match the smallest dimension.
$test = $file->getPreviewFile('1200x1200^');
$this->assertTrue($test->isImage());
$dimensions = getimagesize($test->getFilename());
$this->assertEquals(1600, $dimensions[0]);
$this->assertEquals(1200, $dimensions[1]);
// Fill area will scale up to match the smallest dimension.
$test = $file->getPreviewFile('32x32^');
$this->assertTrue($test->isImage());
$dimensions = getimagesize($test->getFilename());
$this->assertEquals(42, $dimensions[0]);
$this->assertEquals(32, $dimensions[1]);
}
