diff --git a/tests/src/Functional/ProductDetailViewsTest.php b/tests/src/Functional/ProductDetailViewsTest.php
new file mode 100644
index 0000000..20341e4
--- /dev/null
+++ b/tests/src/Functional/ProductDetailViewsTest.php
@@ -0,0 +1,90 @@
+<?php
+
+namespace Drupal\Tests\commerce_google_tag_manager\Functional;
+
+use Drupal\Tests\commerce\Functional\CommerceBrowserTestBase;
+use Drupal\commerce_price\Price;
+use Drupal\commerce_product\Entity\Product;
+use Drupal\commerce_product\Entity\ProductVariation;
+
+/**
+ * Cover hook_entity_view() implemented by commerce_google_tag_manager.module.
+ *
+ * @group commerce
+ * @group commerce_google_tag_manager
+ * @group commerce_google_tag_manager_functional
+ */
+class ProductDetailViewsTest extends CommerceBrowserTestBase {
+
+  /**
+   * The product to test againts.
+   *
+   * @var \Drupal\commerce_product\Entity\
+   */
+  protected $product;
+
+  /**
+   * {@inheritdoc}
+   */
+  public static $modules = [
+    'commerce_product',
+    'google_tag',
+    'commerce_google_tag_manager',
+  ];
+
+  /**
+   * {@inheritdoc}
+   */
+  protected function setUp() {
+    parent::setUp();
+
+    $variation = ProductVariation::create([
+      'type'   => 'default',
+      'sku'    => 'lorem-ipsum-120',
+      'title'  => 'Lorem Ipsum',
+      'price'  => new Price('120.00', 'USD'),
+      'status' => TRUE,
+    ]);
+
+    $this->product = Product::create([
+      'type'  => 'default',
+      'title' => 'Lorem Ipsum',
+    ]);
+    $this->product->save();
+    $this->product->addVariation($variation)->save();
+
+  }
+
+  /**
+   * Cover commerce_google_tag_manager_commerce_product_view.
+   */
+  public function testProductDetailViews() {
+    $this->tempStore = $this->container->get('tempstore.private')->get('commerce_google_tag_manager');
+
+    $this->drupalGet($this->product->toUrl()->toString());
+    $this->assertResponse(200);
+
+    $events = $this->tempStore->get('events');
+    $this->assertSame([
+      'f8e84d8ee071e2fb885d0dc755dd73ab' => [
+        'event' => 'productDetailViews',
+        'ecommerce' => [
+          'detail' => [
+            'actionField' => [
+              'list' => '',
+            ],
+            'products' => [
+              0 => [
+                'name'    => 'Lorem Ipsum',
+                'id'      => '1',
+                'price'   => '120.00',
+                'variant' => 'Lorem Ipsum',
+              ],
+            ],
+          ],
+        ],
+      ],
+    ], $events);
+  }
+
+}