diff --git a/includes/abstracts/abstract-wc-data.php b/includes/abstracts/abstract-wc-data.php
index 7a8e9c84b21f8..9d40318860fa4 100644
--- a/includes/abstracts/abstract-wc-data.php
+++ b/includes/abstracts/abstract-wc-data.php
@@ -53,7 +53,7 @@ abstract class WC_Data {
 	 * Returns the unique ID for this object.
 	 * @return int
 	 */
-	abstract  public function get_id();
+	abstract public function get_id();
 
 	/**
 	 * Returns all data for this object.
@@ -80,7 +80,7 @@ abstract public function update();
 	/**
 	 * Updates object data in the database.
 	 */
-	abstract  public function delete();
+	abstract public function delete();
 
 	/**
 	 * Save should create or update based on object existance.
@@ -127,7 +127,7 @@ public function get_meta( $key = '', $single = true ) {
 			if ( $single ) {
 				$value = $this->_meta_data[ current( $meta_ids ) ]->value;
 			} else {
-				$value = array_intersect_key( $this->_meta_data, $meta_ids );
+				$value = array_intersect_key( $this->_meta_data, array_flip( $meta_ids ) );
 			}
 		}
 
@@ -286,10 +286,10 @@ private function _get_db_info() {
 		$table           = $wpdb->prefix;
 		// If we are dealing with a type of metadata that is not a core type, the table should be prefixed.
 		if ( ! in_array( $this->_meta_type, array( 'post', 'user', 'comment', 'term' ) ) ) {
-			$table = 'woocommerce_';
+			$table .= 'woocommerce_';
 		}
 
-		$table = $this->_meta_type . 'meta';
+		$table .= $this->_meta_type . 'meta';
 
 		// Figure out our field names.
 		if ( 'post' === $this->_meta_type ) {
diff --git a/includes/abstracts/abstract-wc-payment-token.php b/includes/abstracts/abstract-wc-payment-token.php
index ae27b582d6a0a..9820185dd3ad0 100644
--- a/includes/abstracts/abstract-wc-payment-token.php
+++ b/includes/abstracts/abstract-wc-payment-token.php
@@ -16,7 +16,7 @@
  * @category	Abstract Class
  * @author		WooThemes
  */
- abstract class WC_Payment_Token implements WC_Data {
+ abstract class WC_Payment_Token {
 
  	/** @protected int Token ID. */
  	protected $id;
diff --git a/tests/bootstrap.php b/tests/bootstrap.php
index 83521aba1a7f4..512cb692a2485 100644
--- a/tests/bootstrap.php
+++ b/tests/bootstrap.php
@@ -91,6 +91,7 @@ public function includes() {
 		// framework
 		require_once( $this->tests_dir . '/framework/class-wc-unit-test-factory.php' );
 		require_once( $this->tests_dir . '/framework/class-wc-mock-session-handler.php' );
+		require_once( $this->tests_dir . '/framework/class-wc-mock-wc-data.php' );
 		require_once( $this->tests_dir . '/framework/class-wc-payment-token-stub.php' );
 
 		// test cases
diff --git a/tests/framework/class-wc-mock-wc-data.php b/tests/framework/class-wc-mock-wc-data.php
new file mode 100644
index 0000000000000..aaf58451eee04
--- /dev/null
+++ b/tests/framework/class-wc-mock-wc-data.php
@@ -0,0 +1,140 @@
+<?php
+/**
+ * Used for exposing and testing the various Abstract WC_Data methods.
+ */
+class WC_Mock_WC_data extends WC_Data {
+
+	/**
+	 * Data array
+	 */
+	protected $_data = array(
+		'id'      => 0,
+		'content' => '',
+	);
+
+	// see WC_Data
+	protected $_cache_group = '';
+	protected $_meta_type = 'post';
+	protected $object_id_field_for_meta = '';
+	protected $_internal_meta_keys = array();
+
+	/*
+	|--------------------------------------------------------------------------
+	| Setters for internal WC_Data properties.
+	|--------------------------------------------------------------------------
+	| Normally we wouldn't want to be able to change this once the class is defined,
+	| but to make testing different types of meta/storage, we should be able to
+	| switch out our class settings.
+	| These functions just change the properties set above.
+	*/
+
+
+	function set_cache_group( $cache_group ) {
+		$this->_cache_group = $cache_group;
+	}
+
+	function set_meta_type( $meta_type ) {
+		$this->_meta_type = $meta_type;
+	}
+
+	function set_object_id_field( $object_id_field ) {
+		$this->object_id_field_for_meta = $object_id_field;
+	}
+
+	function set_internal_meta_keys( $internal_meta_keys ) {
+		$this->_internal_meta_keys = $internal_meta_keys;
+	}
+
+	/*
+	|--------------------------------------------------------------------------
+	| Abstract methods.
+	|--------------------------------------------------------------------------
+	| Define the abstract methods WC_Data classes expect, so we can go on to
+	| testing the good bits.
+	*/
+
+	public function __construct( $id = '' ) {
+		if ( ! empty( $id ) ) {
+			$this->read( $id );
+		}
+	}
+
+	public function get_id() {
+		return intval( $this->_data['id'] );
+	}
+
+	public function get_content() {
+		return $this->_data['content'];
+	}
+
+	public function set_content( $content ) {
+		$this->_data['content'] = $content;
+	}
+
+	public function get_data() {
+		return array_merge(
+			$this->_data,
+			array(
+				'meta_data' => $this->get_meta_data(),
+			)
+		);
+	}
+
+	public function create() {
+		if ( 'user' === $this->_meta_type ) {
+			$content_id = wc_create_new_customer( $this->get_content(), 'username-' . time(), 'hunter2' );
+		} else {
+			$content_id = wp_insert_post( array ( 'post_title' => $this->get_content() ) );
+		}
+
+		if ( $content_id ) {
+			$this->_data['id'] = $content_id;
+		}
+	}
+
+	public function read( $id ) {
+		if ( empty( $id ) || ! ( $post_object = get_post( $id ) ) ) {
+			return;
+		}
+		$this->_data['id'] = absint( $post_object->ID );
+		$this->set_content( $post_object->post_title );
+		$this->read_meta_data();
+	}
+
+	public function update() {
+		global $wpdb;
+		$content_id = $this->get_id();
+
+		if ( 'user' === $this->_meta_type ) {
+			wp_update_user( array( 'ID' => $customer_id, 'user_email' => $this->get_content() ) );
+		} else {
+			wp_update_post( array( 'ID' => $content_id, 'post_title' => $this->get_content() ) );
+		}
+	}
+
+	public function delete() {
+		if ( 'user' === $this->_meta_type ) {
+			wp_delete_user( $this->get_id() );
+		} else {
+			wp_delete_post( $this->get_id() );
+		}
+	}
+
+	public function save() {
+		if ( ! $this->get_id() ) {
+			$this->create();
+		} else {
+			$this->update();
+		}
+		$this->save_meta_data();
+	}
+
+	/*
+	|--------------------------------------------------------------------------
+	| Provide a public interface to a few of our.
+	|--------------------------------------------------------------------------
+	| Define the abstract methods WC_Data classes expect, so we can go on to
+	| testing the good bits.
+	*/
+
+}
diff --git a/tests/unit-tests/crud/meta.php b/tests/unit-tests/crud/meta.php
new file mode 100644
index 0000000000000..7536608470e9e
--- /dev/null
+++ b/tests/unit-tests/crud/meta.php
@@ -0,0 +1,106 @@
+<?php
+namespace WooCommerce\Tests\CRUD;
+
+/**
+ * Meta
+ * @package WooCommerce\Tests\CRUD
+ */
+class Meta extends \WC_Unit_Test_Case {
+
+	public function create_test_post() {
+		$object = new \WC_Mock_WC_data();
+		$object->set_content( 'testing' );
+		$object->save();
+		$object_id = $object->get_id();
+		add_metadata( 'post', $object_id, 'test_meta_key', 'val1', true );
+		add_metadata( 'post', $object_id, 'test_multi_meta_key', 'val2'  );
+		add_metadata( 'post', $object_id, 'test_multi_meta_key', 'val3'  );
+		$object->read( $object_id ); // reload to make sure we get our meta...
+		return $object;
+	}
+
+	/**
+	 * Tests reading and getting set metadata.
+	 */
+	function test_get_meta_data() {
+		$object    = $this->create_test_post();
+		$meta_data = $object->get_meta_data();
+		$i         = 1;
+
+		$this->assertNotEmpty( $meta_data );
+		foreach ( $meta_data as $mid => $data ) {
+			$this->assertEquals( "val{$i}", $data->value );
+			$i++;
+		}
+	}
+
+	/**
+	 * Test getting meta by ID.
+	 */
+	function test_get_meta() {
+		$object = $this->create_test_post();
+
+		// test single meta key
+		$single_meta = $object->get_meta( 'test_meta_key' );
+		$this->assertEquals( 'val1', $single_meta );
+
+		// test getting multiple
+		$meta = $object->get_meta( 'test_multi_meta_key', false );
+		$i    = 2;
+		foreach ( $meta as $data ) {
+			$this->assertEquals( 'test_multi_meta_key', $data->key );
+			$this->assertEquals( "val{$i}", $data->value );
+			$i++;
+		}
+	}
+
+	/**
+	 * Test setting meta.
+	 */
+	function test_set_meta_data() {
+
+	}
+
+	/**
+	 * Test adding meta data.
+	 */
+	function test_add_meta_data() {
+
+	}
+
+	/**
+	 * Test updating meta data.
+	 */
+	function test_update_meta_data() {
+
+	}
+
+	/**
+	 * Test getting user meta data.
+	 */
+	function test_user_get_meta_data() {
+
+	}
+
+	/**
+	 * Test setting user meta data.
+	 */
+	function test_user_set_meta_data() {
+
+	}
+
+	/**
+	 * Test adding user meta data.
+	 */
+	function test_user_add_meta_data() {
+
+	}
+
+	/**
+	 * Test updating user meta data.
+	 */
+	function test_user_update_meta_data() {
+
+	}
+
+}
diff --git a/woocommerce.php b/woocommerce.php
index 75b8344e6e857..00eec9066f77e 100644
--- a/woocommerce.php
+++ b/woocommerce.php
@@ -223,7 +223,6 @@ private function is_request( $type ) {
 	 * Include required core files used in admin and on the frontend.
 	 */
 	public function includes() {
-		include_once( 'includes/interfaces/interface-wc-data.php' );
 		include_once( 'includes/class-wc-autoloader.php' );
 		include_once( 'includes/wc-core-functions.php' );
 		include_once( 'includes/wc-widget-functions.php' );
@@ -256,6 +255,7 @@ public function includes() {
 
 		include_once( 'includes/class-wc-auth.php' );                            // Auth Class
 		include_once( 'includes/class-wc-post-types.php' );                      // Registers post types
+		include_once( 'includes/abstracts/abstract-wc-data.php' );				 // WC_Data for CRUD
 		include_once( 'includes/abstracts/abstract-wc-payment-token.php' );      // Payment Tokens
 		include_once( 'includes/abstracts/abstract-wc-product.php' );            // Products
 		include_once( 'includes/abstracts/abstract-wc-order.php' );              // Orders