silverstripe-framework/tests/model/ImageTest.php

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<?php
/**
* @package framework
* @subpackage tests
*/
class ImageTest extends SapphireTest {
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protected static $fixture_file = 'ImageTest.yml';
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protected $origBackend;
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public function setUp() {
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if(get_class($this) == "ImageTest") $this->skipTest = true;
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parent::setUp();
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$this->origBackend = Image::get_backend();
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if($this->skipTest)
return;
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if(!file_exists(ASSETS_PATH)) mkdir(ASSETS_PATH);
// Create a test folders for each of the fixture references
$folderIDs = $this->allFixtureIDs('Folder');
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foreach($folderIDs as $folderID) {
$folder = DataObject::get_by_id('Folder', $folderID);
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if(!file_exists(BASE_PATH."/$folder->Filename")) mkdir(BASE_PATH."/$folder->Filename");
}
// Copy test images for each of the fixture references
$imageIDs = $this->allFixtureIDs('Image');
foreach($imageIDs as $imageID) {
$image = DataObject::get_by_id('Image', $imageID);
$filePath = BASE_PATH."/$image->Filename";
$sourcePath = str_replace('assets/ImageTest/', 'framework/tests/model/testimages/', $filePath);
if(!file_exists($filePath)) {
if (!copy($sourcePath, $filePath)) user_error('Failed to copy test images', E_USER_ERROR);
}
}
}
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public function tearDown() {
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if($this->origBackend) Image::set_backend($this->origBackend);
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// Remove the test files that we've created
$fileIDs = $this->allFixtureIDs('Image');
foreach($fileIDs as $fileID) {
$file = DataObject::get_by_id('Image', $fileID);
if($file && file_exists(BASE_PATH."/$file->Filename")) unlink(BASE_PATH."/$file->Filename");
}
// Remove the test folders that we've created
$folderIDs = $this->allFixtureIDs('Folder');
foreach($folderIDs as $folderID) {
$folder = DataObject::get_by_id('Folder', $folderID);
if($folder && file_exists(BASE_PATH."/$folder->Filename")) {
Filesystem::removeFolder(BASE_PATH."/$folder->Filename");
}
if($folder && file_exists(BASE_PATH."/".$folder->Filename."_resampled")) {
Filesystem::removeFolder(BASE_PATH."/".$folder->Filename."_resampled");
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}
}
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parent::tearDown();
}
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public function testGetTagWithTitle() {
$image = $this->objFromFixture('Image', 'imageWithTitle');
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$expected = '<img src="' . Director::baseUrl()
. 'assets/ImageTest/test_image.png" alt="This is a image Title" />';
$actual = $image->getTag();
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$this->assertEquals($expected, $actual);
}
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public function testGetTagWithoutTitle() {
$image = $this->objFromFixture('Image', 'imageWithoutTitle');
$expected = '<img src="' . Director::baseUrl() . 'assets/ImageTest/test_image.png" alt="test_image" />';
$actual = $image->getTag();
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$this->assertEquals($expected, $actual);
}
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public function testGetTagWithoutTitleContainingDots() {
$image = $this->objFromFixture('Image', 'imageWithoutTitleContainingDots');
$expected = '<img src="' . Director::baseUrl()
. 'assets/ImageTest/test.image.with.dots.png" alt="test.image.with.dots" />';
$actual = $image->getTag();
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$this->assertEquals($expected, $actual);
}
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/**
* Tests that multiple image manipulations may be performed on a single Image
*/
public function testMultipleGenerateManipulationCalls() {
$image = $this->objFromFixture('Image', 'imageWithoutTitle');
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$imageFirst = $image->ScaleWidth(200);
$this->assertNotNull($imageFirst);
$expected = 200;
$actual = $imageFirst->getWidth();
$this->assertEquals($expected, $actual);
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$imageSecond = $imageFirst->setHeight(100);
$this->assertNotNull($imageSecond);
$expected = 100;
$actual = $imageSecond->getHeight();
$this->assertEquals($expected, $actual);
}
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/**
* Tests that image manipulations that do not affect the resulting dimensions
* of the output image do not resample the file.
*/
public function testReluctanceToResampling() {
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$image = $this->objFromFixture('Image', 'imageWithoutTitle');
$this->assertTrue($image->isSize(300, 300));
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// Set width to 300 pixels
$imageScaleWidth = $image->ScaleWidth(300);
$this->assertEquals($imageScaleWidth->getWidth(), 300);
$this->assertEquals($image->Filename, $imageScaleWidth->Filename);
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// Set height to 300 pixels
$imageScaleHeight = $image->ScaleHeight(300);
$this->assertEquals($imageScaleHeight->getHeight(), 300);
$this->assertEquals($image->Filename, $imageScaleHeight->Filename);
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// Crop image to 300 x 300
$imageCropped = $image->Fill(300, 300);
$this->assertTrue($imageCropped->isSize(300, 300));
$this->assertEquals($image->Filename, $imageCropped->Filename);
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// Resize (padded) to 300 x 300
$imageSized = $image->Pad(300, 300);
$this->assertTrue($imageSized->isSize(300, 300));
$this->assertEquals($image->Filename, $imageSized->Filename);
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// Padded image 300 x 300 (same as above)
$imagePadded = $image->Pad(300, 300);
$this->assertTrue($imagePadded->isSize(300, 300));
$this->assertEquals($image->Filename, $imagePadded->Filename);
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// Resized (stretched) to 300 x 300
$imageStretched = $image->ResizedImage(300, 300);
$this->assertTrue($imageStretched->isSize(300, 300));
$this->assertEquals($image->Filename, $imageStretched->Filename);
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// Fit (various options)
$imageFit = $image->Fit(300, 600);
$this->assertTrue($imageFit->isSize(300, 300));
$this->assertEquals($image->Filename, $imageFit->Filename);
$imageFit = $image->Fit(600, 300);
$this->assertTrue($imageFit->isSize(300, 300));
$this->assertEquals($image->Filename, $imageFit->Filename);
$imageFit = $image->Fit(300, 300);
$this->assertTrue($imageFit->isSize(300, 300));
$this->assertEquals($image->Filename, $imageFit->Filename);
}
/**
* Tests that image manipulations that do not affect the resulting dimensions
* of the output image resample the file when force_resample is set to true.
*/
public function testForceResample() {
$image = $this->objFromFixture('Image', 'imageWithoutTitle');
$this->assertTrue($image->isSize(300, 300));
$origForceResample = Config::inst()->get('Image', 'force_resample');
Config::inst()->update('Image', 'force_resample', true);
// Set width to 300 pixels
$imageScaleWidth = $image->ScaleWidth(300);
$this->assertEquals($imageScaleWidth->getWidth(), 300);
$this->assertNotEquals($image->Filename, $imageScaleWidth->Filename);
// Set height to 300 pixels
$imageScaleHeight = $image->ScaleHeight(300);
$this->assertEquals($imageScaleHeight->getHeight(), 300);
$this->assertNotEquals($image->Filename, $imageScaleHeight->Filename);
// Crop image to 300 x 300
$imageCropped = $image->Fill(300, 300);
$this->assertTrue($imageCropped->isSize(300, 300));
$this->assertNotEquals($image->Filename, $imageCropped->Filename);
// Resize (padded) to 300 x 300
$imageSized = $image->Pad(300, 300);
$this->assertTrue($imageSized->isSize(300, 300));
$this->assertNotEquals($image->Filename, $imageSized->Filename);
// Padded image 300 x 300 (same as above)
$imagePadded = $image->Pad(300, 300);
$this->assertTrue($imagePadded->isSize(300, 300));
$this->assertNotEquals($image->Filename, $imagePadded->Filename);
// Resized (stretched) to 300 x 300
$imageStretched = $image->ResizedImage(300, 300);
$this->assertTrue($imageStretched->isSize(300, 300));
$this->assertNotEquals($image->Filename, $imageStretched->Filename);
// Fit (various options)
$imageFit = $image->Fit(300, 600);
$this->assertTrue($imageFit->isSize(300, 300));
$this->assertNotEquals($image->Filename, $imageFit->Filename);
$imageFit = $image->Fit(600, 300);
$this->assertTrue($imageFit->isSize(300, 300));
$this->assertNotEquals($image->Filename, $imageFit->Filename);
$imageFit = $image->Fit(300, 300);
$this->assertTrue($imageFit->isSize(300, 300));
$this->assertNotEquals($image->Filename, $imageFit->Filename);
Config::inst()->update('Image', 'force_resample', $origForceResample);
}
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public function testImageResize() {
$image = $this->objFromFixture('Image', 'imageWithoutTitle');
$this->assertTrue($image->isSize(300, 300));
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// Test normal resize
$resized = $image->Pad(150, 100);
$this->assertTrue($resized->isSize(150, 100));
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// Test cropped resize
$cropped = $image->Fill(100, 200);
$this->assertTrue($cropped->isSize(100, 200));
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// Test padded resize
$padded = $image->Pad(200, 100);
$this->assertTrue($padded->isSize(200, 100));
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// Test Fit
$ratio = $image->Fit(80, 160);
$this->assertTrue($ratio->isSize(80, 80));
// Test FitMax
$fitMaxDn = $image->FitMax(200, 100);
$this->assertTrue($fitMaxDn->isSize(100, 100));
$fitMaxUp = $image->FitMax(500, 400);
$this->assertTrue($fitMaxUp->isSize(300, 300));
//Test ScaleMax
$scaleMaxWDn = $image->ScaleMaxWidth(200);
$this->assertTrue($scaleMaxWDn->isSize(200, 200));
$scaleMaxWUp = $image->ScaleMaxWidth(400);
$this->assertTrue($scaleMaxWUp->isSize(300, 300));
$scaleMaxHDn = $image->ScaleMaxHeight(200);
$this->assertTrue($scaleMaxHDn->isSize(200, 200));
$scaleMaxHUp = $image->ScaleMaxHeight(400);
$this->assertTrue($scaleMaxHUp->isSize(300, 300));
// Test FillMax
$cropMaxDn = $image->FillMax(200, 100);
$this->assertTrue($cropMaxDn->isSize(200, 100));
$cropMaxUp = $image->FillMax(400, 200);
$this->assertTrue($cropMaxUp->isSize(300, 150));
// Test Clip
$clipWDn = $image->CropWidth(200);
$this->assertTrue($clipWDn->isSize(200, 300));
$clipWUp = $image->CropWidth(400);
$this->assertTrue($clipWUp->isSize(300, 300));
$clipHDn = $image->CropHeight(200);
$this->assertTrue($clipHDn->isSize(300, 200));
$clipHUp = $image->CropHeight(400);
$this->assertTrue($clipHUp->isSize(300, 300));
}
/**
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* @expectedException InvalidArgumentException
*/
public function testGenerateImageWithInvalidParameters() {
$image = $this->objFromFixture('Image', 'imageWithoutTitle');
$image->setHeight('String');
$image->Pad(600,600,'XXXXXX');
}
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public function testCacheFilename() {
$image = $this->objFromFixture('Image', 'imageWithoutTitle');
$imageFirst = $image->Pad(200,200,'CCCCCC');
$imageFilename = $imageFirst->getFullPath();
// Encoding of the arguments is duplicated from cacheFilename
$neededPart = 'Pad' . base64_encode(json_encode(array(200,200,'CCCCCC')));
$this->assertContains($neededPart, $imageFilename, 'Filename for cached image is correctly generated');
}
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public function testMultipleGenerateManipulationCalls_Regeneration() {
$image = $this->objFromFixture('Image', 'imageWithoutTitle');
$folder = new SS_FileFinder();
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$imageFirst = $image->Pad(200,200);
$this->assertNotNull($imageFirst);
$expected = 200;
$actual = $imageFirst->getWidth();
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$this->assertEquals($expected, $actual);
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$imageSecond = $imageFirst->setHeight(100);
$this->assertNotNull($imageSecond);
$expected = 100;
$actual = $imageSecond->getHeight();
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$this->assertEquals($expected, $actual);
$imageThird = $imageSecond->Pad(600,600,'0F0F0F');
// Encoding of the arguments is duplicated from cacheFilename
$argumentString = base64_encode(json_encode(array(600,600,'0F0F0F')));
$this->assertNotNull($imageThird);
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$this->assertContains($argumentString, $imageThird->getFullPath(),
'Image contains background color for padded resizement');
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$imageThirdPath = $imageThird->getFullPath();
$filesInFolder = $folder->find(dirname($imageThirdPath));
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$this->assertEquals(3, count($filesInFolder),
'Image folder contains only the expected number of images before regeneration');
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$hash = md5_file($imageThirdPath);
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$this->assertEquals(3, $image->regenerateFormattedImages(),
'Cached images were regenerated in the right number');
$this->assertEquals($hash, md5_file($imageThirdPath), 'Regeneration of third image is correct');
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/* Check that no other images exist, to ensure that the regeneration did not create other images */
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$this->assertEquals($filesInFolder, $folder->find(dirname($imageThirdPath)),
'Image folder contains only the expected image files after regeneration');
}
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public function testRegenerateImages() {
$image = $this->objFromFixture('Image', 'imageWithMetacharacters');
$image_generated = $image->ScaleWidth(200);
$p = $image_generated->getFullPath();
$this->assertTrue(file_exists($p), 'Resized image exists after creation call');
$this->assertEquals(1, $image->regenerateFormattedImages(), 'Cached images were regenerated correct');
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$this->assertEquals($image_generated->getWidth(), 200,
'Resized image has correct width after regeneration call');
$this->assertTrue(file_exists($p), 'Resized image exists after regeneration call');
}
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/**
* Tests that cached images are regenerated properly after a cached file is renamed with new arguments
* ToDo: This doesn't seem like something that is worth testing - what is the point of this?
*/
public function testRegenerateImagesWithRenaming() {
$image = $this->objFromFixture('Image', 'imageWithMetacharacters');
$image_generated = $image->ScaleWidth(200);
$p = $image_generated->getFullPath();
$this->assertTrue(file_exists($p), 'Resized image exists after creation call');
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// Encoding of the arguments is duplicated from cacheFilename
$oldArgumentString = base64_encode(json_encode(array(200)));
$newArgumentString = base64_encode(json_encode(array(300)));
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$newPath = str_replace($oldArgumentString, $newArgumentString, $p);
$newRelative = str_replace($oldArgumentString, $newArgumentString, $image_generated->getFileName());
rename($p, $newPath);
$this->assertFalse(file_exists($p), 'Resized image does not exist at old path after renaming');
$this->assertTrue(file_exists($newPath), 'Resized image exists at new path after renaming');
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$this->assertEquals(1, $image->regenerateFormattedImages(),
'Cached images were regenerated in the right number');
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$image_generated_2 = new Image_Cached($newRelative);
$this->assertEquals(300, $image_generated_2->getWidth(), 'Cached image was regenerated with correct width');
}
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public function testGeneratedImageDeletion() {
$image = $this->objFromFixture('Image', 'imageWithMetacharacters');
$image_generated = $image->ScaleWidth(200);
$p = $image_generated->getFullPath();
$this->assertTrue(file_exists($p), 'Resized image exists after creation call');
$numDeleted = $image->deleteFormattedImages();
$this->assertEquals(1, $numDeleted, 'Expected one image to be deleted, but deleted ' . $numDeleted . ' images');
$this->assertFalse(file_exists($p), 'Resized image not existing after deletion call');
}
/**
* Tests that generated images with multiple image manipulations are all deleted
*/
public function testMultipleGenerateManipulationCallsImageDeletion() {
$image = $this->objFromFixture('Image', 'imageWithMetacharacters');
$firstImage = $image->ScaleWidth(200);
$firstImagePath = $firstImage->getFullPath();
$this->assertTrue(file_exists($firstImagePath));
$secondImage = $firstImage->ScaleHeight(100);
$secondImagePath = $secondImage->getFullPath();
$this->assertTrue(file_exists($secondImagePath));
$image->deleteFormattedImages();
$this->assertFalse(file_exists($firstImagePath));
$this->assertFalse(file_exists($secondImagePath));
}
/**
* Tests path properties of cached images with multiple image manipulations
*/
public function testPathPropertiesCachedImage() {
$image = $this->objFromFixture('Image', 'imageWithMetacharacters');
$firstImage = $image->ScaleWidth(200);
$firstImagePath = $firstImage->getRelativePath();
$this->assertEquals($firstImagePath, $firstImage->Filename);
$secondImage = $firstImage->ScaleHeight(100);
$secondImagePath = $secondImage->getRelativePath();
$this->assertEquals($secondImagePath, $secondImage->Filename);
}
/**
* Test all generate methods
*/
public function testGenerateMethods() {
$image = $this->objFromFixture('Image', 'imageWithoutTitle');
$generateMethods = $this->getGenerateMethods();
// test each generate method
foreach ($generateMethods as $method) {
$generatedImage = $image->$method(333, 333, 'FFFFFF');
$this->assertFileExists(
$generatedImage->getFullPath(),
'Formatted ' . $method . ' image exists'
);
}
}
/**
* Test deleteFormattedImages() against all generate methods
*/
public function testDeleteFormattedImages() {
$image = $this->objFromFixture('Image', 'imageWithoutTitle');
$generateMethods = $this->getGenerateMethods();
// get paths for each generate method
$paths = array();
foreach ($generateMethods as $method) {
$generatedImage = $image->$method(333, 333, 'FFFFFF');
$paths[$method] = $generatedImage->getFullPath();
}
// delete formatted images
$image->deleteFormattedImages();
// test that all formatted images are deleted
foreach ($paths as $method => $path) {
$this->assertFalse(
file_exists($path),
'Formatted ' . $method . ' image does not exist'
);
}
}
/**
* @param bool $custom include methods added dynamically at runtime
* @return array
*/
protected function getGenerateMethods($custom = true) {
$generateMethods = array();
$methodNames = Image::create()->allMethodNames($custom);
foreach ($methodNames as $methodName) {
if (substr($methodName, 0, 8) == 'generate' && $methodName != 'generateformattedimage') {
$format = substr($methodName, 8);
$generateMethods[] = $format;
}
}
return $generateMethods;
}
}