diff --git a/app/code/Magento/Reports/Test/Unit/Block/Product/ComparedTest.php b/app/code/Magento/Reports/Test/Unit/Block/Product/ComparedTest.php
new file mode 100644
index 0000000000000..e8913e4adb38f
--- /dev/null
+++ b/app/code/Magento/Reports/Test/Unit/Block/Product/ComparedTest.php
@@ -0,0 +1,66 @@
+<?php
+/**
+ * Copyright © 2016 Magento. All rights reserved.
+ * See COPYING.txt for license details.
+ */
+
+namespace Magento\Reports\Test\Unit\Block\Product;
+
+use \Magento\Reports\Block\Product\Compared;
+use \Magento\Reports\Model\Product\Index\Factory;
+
+class ComparedTest extends \PHPUnit_Framework_TestCase
+{
+
+    /**
+     * @var \Magento\Reports\Block\Product\Compared;
+     */
+    private $sut;
+
+    /**
+     * @var Factory|\PHPUnit_Framework_MockObject_MockObject
+     */
+    private $factoryMock;
+
+    protected function setUp()
+    {
+        $contextMock = $this->getMockBuilder(\Magento\Catalog\Block\Product\Context::class)
+            ->disableOriginalConstructor()
+            ->getMock();
+        $visibilityMock = $this->getMockBuilder(\Magento\Catalog\Model\Product\Visibility::class)
+            ->disableOriginalConstructor()
+            ->getMock();
+        $this->factoryMock = $this->getMockBuilder(\Magento\Reports\Model\Product\Index\Factory::class)
+            ->disableOriginalConstructor()
+            ->setMethods(['get'])
+            ->getMock();
+
+        $this->sut = new Compared($contextMock, $visibilityMock, $this->factoryMock);
+    }
+
+    /**
+     * Assert that getModel method throws LocalizedException
+     *
+     * @expectedException \Magento\Framework\Exception\LocalizedException
+     */
+    public function testGetModelException()
+    {
+        $this->factoryMock->expects($this->once())->method('get')->willThrowException(new \InvalidArgumentException);
+
+        $this->sut->getModel();
+    }
+
+    /**
+     * Assert that getModel method returns AbstractIndex
+     */
+    public function testGetModel()
+    {
+        $indexMock = $this->getMockBuilder(\Magento\Reports\Model\Product\Index\AbstractIndex::class)
+        ->disableOriginalConstructor()
+        ->getMock();
+
+        $this->factoryMock->expects($this->once())->method('get')->willReturn($indexMock);
+
+        $this->assertSame($indexMock, $this->sut->getModel());
+    }
+}
diff --git a/dev/tests/integration/testsuite/Magento/Reports/Model/ResourceModel/Product/Lowstock/CollectionTest.php b/dev/tests/integration/testsuite/Magento/Reports/Model/ResourceModel/Product/Lowstock/CollectionTest.php
new file mode 100644
index 0000000000000..aa8d6c2bd65bd
--- /dev/null
+++ b/dev/tests/integration/testsuite/Magento/Reports/Model/ResourceModel/Product/Lowstock/CollectionTest.php
@@ -0,0 +1,68 @@
+<?php
+/**
+ * Copyright © 2016 Magento. All rights reserved.
+ * See COPYING.txt for license details.
+ */
+
+namespace Magento\Reports\Model\ResourceModel\Product\Lowstock\Collection;
+
+
+class CollectionTest extends \PHPUnit_Framework_TestCase
+{
+
+    /**
+     * @var \Magento\Reports\Model\ResourceModel\Product\Lowstock\Collection
+     */
+    private $collection;
+
+    protected function setUp()
+    {
+        /**
+         * @var  \Magento\Reports\Model\ResourceModel\Product\Lowstock\Collection
+         */
+        $this->collection = \Magento\TestFramework\Helper\Bootstrap::getObjectManager()->create(
+            \Magento\Reports\Model\ResourceModel\Product\Lowstock\Collection::class
+        );
+    }
+
+    /**
+     * Assert that filterByProductType method throws LocalizedException if not String or Array is passed to it
+     *
+     * @expectedException \Magento\Framework\Exception\LocalizedException
+     */
+    public function testFilterByProductTypeException()
+    {
+        $this->collection->filterByProductType(100);
+    }
+
+    /**
+     * Assert that String argument passed to filterByProductType method is correctly passed to attribute adder
+     *
+     * @expectedException \Magento\Framework\Exception\LocalizedException
+     */
+    public function testFilterByProductTypeString()
+    {
+        $this->collection->filterByProductType('simple');
+        $whereParts = $this->collection->getSelect()->getPart(\Zend_Db_Select::WHERE);
+        $this->assertContains('simple', $whereParts[0]);
+    }
+
+    /**
+     * Assert that Array argument passed to filterByProductType method is correctly passed to attribute adder
+     *
+     * @expectedException \Magento\Framework\Exception\LocalizedException
+     */
+    public function testFilterByProductTypeArray()
+    {
+        $this->collection->filterByProductType(['simple', 'configurable']);
+        $whereParts = $this->collection->getSelect()->getPart(\Zend_Db_Select::WHERE);
+
+        $this->assertThat(
+            $whereParts[0],
+            $this->logicalAnd(
+                $this->stringContains('simple'),
+                $this->stringContains('configurable')
+            )
+        );
+    }
+}