diff --git a/core/modules/breakpoint/lib/Drupal/breakpoint/Entity/Breakpoint.php b/core/modules/breakpoint/lib/Drupal/breakpoint/Entity/Breakpoint.php
index e8f7294..993eae8 100644
--- a/core/modules/breakpoint/lib/Drupal/breakpoint/Entity/Breakpoint.php
+++ b/core/modules/breakpoint/lib/Drupal/breakpoint/Entity/Breakpoint.php
@@ -284,4 +284,116 @@ public static function isValidMediaQuery($media_query) {
     }
     throw new InvalidBreakpointMediaQueryException('Media query is empty.');
   }
+
+    /**
+     * @param \Drupal\breakpoint\Entity\weight $weight
+     */
+    public function setWeight($weight)
+    {
+        $this->weight = $weight;
+    }
+
+    /**
+     * @return \Drupal\breakpoint\Entity\weight
+     */
+    public function getWeight()
+    {
+        return $this->weight;
+    }
+
+    /**
+     * @param string $sourceType
+     */
+    public function setSourceType($sourceType)
+    {
+        $this->sourceType = $sourceType;
+    }
+
+    /**
+     * @return string
+     */
+    public function getSourceType()
+    {
+        return $this->sourceType;
+    }
+
+    /**
+     * @param string $source
+     */
+    public function setSource($source)
+    {
+        $this->source = $source;
+    }
+
+    /**
+     * @return string
+     */
+    public function getSource()
+    {
+        return $this->source;
+    }
+
+    /**
+     * @param string $name
+     */
+    public function setName($name)
+    {
+        $this->name = $name;
+    }
+
+    /**
+     * @return string
+     */
+    public function getName()
+    {
+        return $this->name;
+    }
+
+    /**
+     * @param \Drupal\breakpoint\Entity\multipliers $multipliers
+     */
+    public function setMultipliers($multipliers)
+    {
+        $this->multipliers = $multipliers;
+    }
+
+    /**
+     * @return \Drupal\breakpoint\Entity\multipliers
+     */
+    public function getMultipliers()
+    {
+        return $this->multipliers;
+    }
+
+    /**
+     * @param string $mediaQuery
+     */
+    public function setMediaQuery($mediaQuery)
+    {
+        $this->mediaQuery = $mediaQuery;
+    }
+
+    /**
+     * @return string
+     */
+    public function getMediaQuery()
+    {
+        return $this->mediaQuery;
+    }
+
+    /**
+     * @param string $label
+     */
+    public function setLabel($label)
+    {
+        $this->label = $label;
+    }
+
+    /**
+     * @return string
+     */
+    public function getLabel()
+    {
+        return $this->label;
+    }
 }
diff --git a/core/modules/breakpoint/tests/Drupal/breakpoint/Tests/BreakpointAPITest.php b/core/modules/breakpoint/tests/Drupal/breakpoint/Tests/BreakpointAPITest.php
new file mode 100644
index 0000000..f35a651
--- /dev/null
+++ b/core/modules/breakpoint/tests/Drupal/breakpoint/Tests/BreakpointAPITest.php
@@ -0,0 +1,51 @@
+<?php
+/**
+ * @file
+ * Definition of Drupal\breakpoint\Tests\BreakpointAPITest.
+ */
+
+namespace Drupal\breakpoint\Tests;
+
+use Drupal\Tests\UnitTestCase;
+use Drupal\breakpoint\Entity\Breakpoint;
+use Drupal\breakpoint\InvalidBreakpointMediaQueryException;
+
+/**
+ * Tests for media queries in a breakpoint.
+ *
+ * @group Breakpoint
+ */
+class BreakpointAPITest extends UnitTestCase {
+
+  public static function getInfo() {
+    return array(
+      'name' => 'Breakpoint API tests',
+      'description' => 'Test validation of class properties.',
+      'group' => 'Breakpoint',
+    );
+  }
+
+  /**
+   * Test property setters and getters.
+   */
+  public function testProperties() {
+    $breakpoint = new Breakpoint( array(), 'Breakpoint');
+
+    // Properties to test with some random data.
+    // i.e setLabel($randomdata) and getLabel()
+    $properties = array(
+      'Label' => $this->getRandomGenerator()->name(16),
+      'MediaQuery' => $this->getRandomGenerator()->string(16),
+      'Multipliers' => array($this->getRandomGenerator()->string(16),$this->getRandomGenerator()->string(16)),
+      'Name' => $this->getRandomGenerator()->name(16),
+      'Source' => $this->getRandomGenerator()->name(16),
+      'SourceType' => $this->getRandomGenerator()->name(16),
+      'Weight' => mt_rand(-40, 40),
+    );
+
+    foreach($properties as $name => $value) {
+      $breakpoint->{'set'.$name}($value);
+      $this->assertEquals($value, $breakpoint->{'get'.$name}(), 'breakpoint_property: set'. $name .' and get'. $name);
+    }
+  }
+}