diff core/tests/Drupal/Tests/Component/Utility/ImageTest.php @ 0:c75dbcec494b

Initial commit from drush-created site

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/core/tests/Drupal/Tests/Component/Utility/ImageTest.php	Thu Jul 05 14:24:15 2018 +0000
@@ -0,0 +1,158 @@
+<?php
+
+namespace Drupal\Tests\Component\Utility;
+
+use Drupal\Component\Utility\Image;
+use PHPUnit\Framework\TestCase;
+
+/**
+ * @coversDefaultClass \Drupal\Component\Utility\Image
+ * @group Image
+ */
+class ImageTest extends TestCase {
+
+  /**
+   * Tests all control flow branches in image_dimensions_scale().
+   *
+   * @dataProvider providerTestScaleDimensions
+   */
+  public function testScaleDimensions($input, $output) {
+    // Process the test dataset.
+    $return_value = Image::scaleDimensions($input['dimensions'], $input['width'], $input['height'], $input['upscale']);
+
+    // Check the width.
+    $this->assertEquals($output['dimensions']['width'], $input['dimensions']['width'], sprintf('Computed width (%s) does not equal expected width (%s)', $output['dimensions']['width'], $input['dimensions']['width']));
+
+    // Check the height.
+    $this->assertEquals($output['dimensions']['height'], $input['dimensions']['height'], sprintf('Computed height (%s) does not equal expected height (%s)', $output['dimensions']['height'], $input['dimensions']['height']));
+
+    // Check the return value.
+    $this->assertEquals($output['return_value'], $return_value, 'Incorrect return value.');
+  }
+
+  /**
+   * Provides data for image dimension scale tests.
+   *
+   * @return array
+   *   Keyed array containing:
+   *   - 'input' - Array which contains input for Image::scaleDimensions().
+   *   - 'output' - Array which contains expected output after passing
+   *     through Image::scaleDimensions. Also contains a boolean
+   *     'return_value' which should match the expected return value.
+   *
+   * @see testScaleDimensions()
+   */
+  public function providerTestScaleDimensions() {
+    // Define input / output datasets to test different branch conditions.
+    $tests = [];
+
+    // Test branch conditions:
+    // - No height.
+    // - Upscale, don't need to upscale.
+    $tests[] = [
+      'input' => [
+        'dimensions' => [
+          'width' => 1000,
+          'height' => 2000,
+        ],
+        'width' => 200,
+        'height' => NULL,
+        'upscale' => TRUE,
+      ],
+      'output' => [
+        'dimensions' => [
+          'width' => 200,
+          'height' => 400,
+        ],
+        'return_value' => TRUE,
+      ],
+    ];
+
+    // Test branch conditions:
+    // - No width.
+    // - Don't upscale, don't need to upscale.
+    $tests[] = [
+      'input' => [
+        'dimensions' => [
+          'width' => 1000,
+          'height' => 800,
+        ],
+        'width' => NULL,
+        'height' => 140,
+        'upscale' => FALSE,
+      ],
+      'output' => [
+        'dimensions' => [
+          'width' => 175,
+          'height' => 140,
+        ],
+        'return_value' => TRUE,
+      ],
+    ];
+
+    // Test branch conditions:
+    // - Source aspect ratio greater than target.
+    // - Upscale, need to upscale.
+    $tests[] = [
+      'input' => [
+        'dimensions' => [
+          'width' => 8,
+          'height' => 20,
+        ],
+        'width' => 200,
+        'height' => 140,
+        'upscale' => TRUE,
+      ],
+      'output' => [
+        'dimensions' => [
+          'width' => 56,
+          'height' => 140,
+        ],
+        'return_value' => TRUE,
+      ],
+    ];
+
+    // Test branch condition: target aspect ratio greater than source.
+    $tests[] = [
+      'input' => [
+        'dimensions' => [
+          'width' => 2000,
+          'height' => 800,
+        ],
+        'width' => 200,
+        'height' => 140,
+        'upscale' => FALSE,
+      ],
+      'output' => [
+        'dimensions' => [
+          'width' => 200,
+          'height' => 80,
+        ],
+        'return_value' => TRUE,
+      ],
+    ];
+
+    // Test branch condition: don't upscale, need to upscale.
+    $tests[] = [
+      'input' => [
+        'dimensions' => [
+          'width' => 100,
+          'height' => 50,
+        ],
+        'width' => 200,
+        'height' => 140,
+        'upscale' => FALSE,
+      ],
+      'output' => [
+        'dimensions' => [
+          'width' => 100,
+          'height' => 50,
+        ],
+        'return_value' => FALSE,
+      ],
+    ];
+
+    return $tests;
+  }
+
+}