commit 3d7a434820b9f4077258f6e39d0529fb22b1578f
Author: Joel Pittet <joel@pittet.ca>
Date:   Sun Nov 9 12:22:11 2014 -0800

    I moved the value method to the AttributeValueBase, and tested boolean in constructor which passes locally, and used short array syntax.

diff --git a/core/lib/Drupal/Core/Template/AttributeArray.php b/core/lib/Drupal/Core/Template/AttributeArray.php
index 61c968f..190c898 100644
--- a/core/lib/Drupal/Core/Template/AttributeArray.php
+++ b/core/lib/Drupal/Core/Template/AttributeArray.php
@@ -87,13 +87,6 @@ public function getIterator() {
   }
 
   /**
-   * Returns the whole array.
-   */
-  public function value() {
-    return $this->value;
-  }
-
-  /**
    * Exchange the array for another one.
    *
    * @see ArrayObject::exchangeArray
diff --git a/core/lib/Drupal/Core/Template/AttributeBoolean.php b/core/lib/Drupal/Core/Template/AttributeBoolean.php
index d3d4a45..4e9ea67 100644
--- a/core/lib/Drupal/Core/Template/AttributeBoolean.php
+++ b/core/lib/Drupal/Core/Template/AttributeBoolean.php
@@ -39,13 +39,6 @@ public function render() {
   }
 
   /**
-   * Returns the boolean value.
-   */
-  public function value() {
-    return $this->value;
-  }
-
-  /**
    * Implements the magic __toString() method.
    */
   public function __toString() {
diff --git a/core/lib/Drupal/Core/Template/AttributeValueBase.php b/core/lib/Drupal/Core/Template/AttributeValueBase.php
index 197b199..ed4dfc3 100644
--- a/core/lib/Drupal/Core/Template/AttributeValueBase.php
+++ b/core/lib/Drupal/Core/Template/AttributeValueBase.php
@@ -62,6 +62,13 @@ public function render() {
   }
 
   /**
+   * Returns the raw value.
+   */
+  public function value() {
+    return $this->value;
+  }
+
+  /**
    * Implements the magic __toString() method.
    */
   abstract function __toString();
diff --git a/core/tests/Drupal/Tests/Core/Template/AttributeTest.php b/core/tests/Drupal/Tests/Core/Template/AttributeTest.php
index b195618..fcf8601 100644
--- a/core/tests/Drupal/Tests/Core/Template/AttributeTest.php
+++ b/core/tests/Drupal/Tests/Core/Template/AttributeTest.php
@@ -65,9 +65,9 @@ public function testSetAttribute() {
     $attribute = new Attribute();
 
     // Test adding various attributes.
-    $attributes = array('alt', 'id', 'src', 'title', 'value');
+    $attributes = ['alt', 'id', 'src', 'title', 'value'];
     foreach ($attributes as $key) {
-      foreach (array('kitten', '') as $value) {
+      foreach (['kitten', ''] as $value) {
         $attribute = new Attribute();
         $attribute->setAttribute($key, $value);
         $this->assertEquals($value, $attribute[$key]);
@@ -76,13 +76,18 @@ public function testSetAttribute() {
 
     // Test adding array to class.
     $attribute = new Attribute();
-    $attribute->setAttribute('class', array('kitten', 'cat'));
-    $this->assertArrayEquals(array('kitten', 'cat'), $attribute['class']->value());
+    $attribute->setAttribute('class', ['kitten', 'cat']);
+    $this->assertArrayEquals(['kitten', 'cat'], $attribute['class']->value());
 
     // Test adding boolean attributes.
     $attribute = new Attribute();
     $attribute['checked'] = TRUE;
     $this->assertTrue($attribute['checked']->value());
+
+    // Test adding boolean attributes through the constructor.
+    $attribute = new Attribute(['selected' => TRUE, 'checked' => FALSE]);
+    $this->assertTrue($attribute['selected']->value());
+    $this->assertFalse($attribute['checked']->value());
   }
 
   /**
@@ -90,14 +95,14 @@ public function testSetAttribute() {
    * @covers ::removeAttribute()
    */
   public function testRemoveAttribute() {
-    $attributes = array(
+    $attributes = [
       'alt' => 'Alternative text',
       'id' => 'bunny',
       'src' => 'zebra',
       'style' => 'color: pink;',
       'title' => 'kitten',
       'value' => 'ostrich',
-    );
+    ];
     $attribute = new Attribute($attributes);
 
     // Single value.