diff --git a/includes/class-wc-cart.php b/includes/class-wc-cart.php
index 3fa90257e34..5ed8b324ea4 100644
--- a/includes/class-wc-cart.php
+++ b/includes/class-wc-cart.php
@@ -936,7 +936,7 @@ class WC_Cart {
 			if ( $product_data->managing_stock() ) {
 				$products_qty_in_cart = $this->get_cart_item_quantities();
 
-				if ( isset( $products_qty_in_cart[ $product_data->get_stock_managed_by_id() ]  ) && ! $product_data->has_enough_stock( $products_qty_in_cart[ $product_data->get_stock_managed_by_id() ] + $quantity ) ) {
+				if ( isset( $products_qty_in_cart[ $product_data->get_stock_managed_by_id() ] ) && ! $product_data->has_enough_stock( $products_qty_in_cart[ $product_data->get_stock_managed_by_id() ] + $quantity ) ) {
 					throw new Exception( sprintf(
 						'<a href="%s" class="button wc-forward">%s</a> %s',
 						wc_get_cart_url(),
diff --git a/includes/class-wc-product-variation.php b/includes/class-wc-product-variation.php
index 6ecda369bcf..404031270d7 100644
--- a/includes/class-wc-product-variation.php
+++ b/includes/class-wc-product-variation.php
@@ -37,15 +37,6 @@ class WC_Product_Variation extends WC_Product_Simple {
 		'tax_class'      => '',
 	);
 
-	/**
-	 * Initialize simple product.
-	 *
-	 * @param mixed $product
-	 */
-	public function __construct( $product = 0 ) {
-		parent::__construct( $product );
-	}
-
 	/**
 	 * Prefix for action and filter hooks on data.
 	 *
diff --git a/includes/data-stores/class-wc-order-data-store-cpt.php b/includes/data-stores/class-wc-order-data-store-cpt.php
index e9659144914..9dcbe4dc32a 100644
--- a/includes/data-stores/class-wc-order-data-store-cpt.php
+++ b/includes/data-stores/class-wc-order-data-store-cpt.php
@@ -64,7 +64,7 @@ class WC_Order_Data_Store_CPT extends Abstract_WC_Order_Data_Store_CPT implement
 		'_date_paid',
 		'_payment_tokens',
 		'_billing_address_index',
-		'_shipping_address_index'
+		'_shipping_address_index',
 	);
 
 	/**
diff --git a/tests/framework/class-wc-mock-wc-data.php b/tests/framework/class-wc-mock-wc-data.php
index 6b33cfd0b2f..0e55c615cc4 100644
--- a/tests/framework/class-wc-mock-wc-data.php
+++ b/tests/framework/class-wc-mock-wc-data.php
@@ -155,7 +155,7 @@ class WC_Mock_WC_Data extends WC_Data {
 	 * @param string $content
 	 */
 	public function set_content( $content ) {
-		$this->set_prop('content', $content );
+		$this->set_prop( 'content', $content );
 	}
 
 	/**
diff --git a/tests/unit-tests/product/data-store.php b/tests/unit-tests/product/data-store.php
index 6bc3f50c4b3..df3e8909db6 100644
--- a/tests/unit-tests/product/data-store.php
+++ b/tests/unit-tests/product/data-store.php
@@ -346,6 +346,6 @@ class WC_Tests_Product_Data_Store extends WC_Unit_Test_Case {
 		$loaded_variation = wc_get_product( $variation->get_id() );
 
 		$this->assertEquals( 'publish', $loaded_variation->get_status( 'edit' ) );
-		$this->assertEquals( 'green', $loaded_variation->get_attributes( 'edit' )[ 'attribute_color' ] );
+		$this->assertEquals( 'green', $loaded_variation->get_attributes( 'edit' )['attribute_color'] );
 	}
 }