1 files changed, 42 insertions, 0 deletions
diff --git a/modules/block/block.test b/modules/block/block.test
index af118a940..022bf3830 100644
--- a/modules/block/block.test
+++ b/modules/block/block.test
@@ -666,3 +666,45 @@ class BlockHTMLIdTestCase extends DrupalWebTestCase {
     $this->assertRaw('block-block-test-test-html-id', t('HTML id for test block is valid.'));
   }
 }
+
+
+/**
+ * Unit tests for template_preprocess_block().
+ */
+class BlockTemplateSuggestionsUnitTest extends DrupalUnitTestCase {
+  public static function getInfo() {
+    return array(
+      'name' => 'Block template suggestions',
+      'description' => 'Test the template_preprocess_block() function.',
+      'group' => 'Block',
+    );
+  }
+
+  /**
+   * Test if template_preprocess_block() handles the suggestions right.
+   */
+  function testBlockThemeHookSuggestions() {
+    // Define block delta with underscore to be preprocessed
+    $block1 = new stdClass();
+    $block1->module = 'block';
+    $block1->delta = 'underscore_test';
+    $block1->region = 'footer';
+    $variables1 = array();
+    $variables1['elements']['#block'] = $block1;
+    $variables1['elements']['#children'] = '';
+    template_preprocess_block($variables1);
+    $this->assertEqual($variables1['theme_hook_suggestions'], array('block__footer', 'block__block', 'block__block__underscore_test'), t('Found expected block suggestions for delta with underscore'));
+
+    // Define block delta with hyphens to be preprocessed. Hyphens should be
+    // replaced with underscores.
+    $block2 = new stdClass();
+    $block2->module = 'block';
+    $block2->delta = 'hyphen-test';
+    $block2->region = 'footer';
+    $variables2 = array();
+    $variables2['elements']['#block'] = $block2;
+    $variables2['elements']['#children'] = '';
+    template_preprocess_block($variables2);
+    $this->assertEqual($variables2['theme_hook_suggestions'], array('block__footer', 'block__block', 'block__block__hyphen_test'), t('Hyphens (-) in block delta were replaced by underscore (_)'));
+  }
+}