diff --git a/tests/unit-tests/api/product-variations.php b/tests/unit-tests/api/product-variations.php
index 1412cc900ce..ab1b810be43 100644
--- a/tests/unit-tests/api/product-variations.php
+++ b/tests/unit-tests/api/product-variations.php
@@ -398,7 +398,7 @@ class Product_Variations_API extends WC_REST_Unit_Test_Case {
 		$this->assertArrayHasKey( 'tax_class', $properties );
 		$this->assertArrayHasKey( 'manage_stock', $properties );
 		$this->assertArrayHasKey( 'stock_quantity', $properties );
-		$this->assertArrayHasKey( 'in_stock', $properties );
+		$this->assertArrayHasKey( 'stock_status', $properties );
 		$this->assertArrayHasKey( 'backorders', $properties );
 		$this->assertArrayHasKey( 'backorders_allowed', $properties );
 		$this->assertArrayHasKey( 'backordered', $properties );
@@ -471,290 +471,4 @@ class Product_Variations_API extends WC_REST_Unit_Test_Case {
 		$this->assertEquals( 200, $response->get_status() );
 		$this->assertEquals( 'parent', $variation['manage_stock'] );
 	}
-
-	/**
-	 * Test getting product variations filtered by product category.
-	 *
-	 * @since 3.5.0
-	 */
-	public function test_get_variations_by_category() {
-		wp_set_current_user( $this->user );
-
-		// Create product assigned to a single category.
-		$category = wp_insert_term( 'Some Category', 'product_cat' );
-		$variable_product = WC_Helper_Product::create_variation_product();
-		$variable_product->set_category_ids( array( $category['term_id'] ) );
-		$variable_product->save();
-		$variations = $variable_product->get_children();
-
-		$query_params = array(
-			'category' => (string) $category['term_id'],
-		);
-		$request             = new WP_REST_Request( 'GET', '/wc/v2/products/' . $variable_product->get_id() . '/variations' );
-		$request->set_query_params( $query_params );
-		$response            = $this->server->dispatch( $request );
-		$response_variations = $response->get_data();
-
-		$this->assertEquals( 200, $response->get_status() );
-		$this->assertEquals( count( $variations ), count( $response_variations ) );
-		foreach ( $response_variations as $response_variation ) {
-			$this->assertContains( $response_variation['id'], $variations );
-		}
-	}
-
-	/**
-	 * Test getting variations filtered by product type.
-	 *
-	 * @since 3.5.0
-	 */
-	public function test_get_variations_by_type() {
-		wp_set_current_user( $this->user );
-
-		$simple = WC_Helper_Product::create_simple_product();
-		$external = WC_Helper_Product::create_external_product();
-		$grouped = WC_Helper_Product::create_grouped_product();
-		$variable = WC_Helper_Product::create_variation_product();
-		$variations = $variable->get_children();
-
-		$query_params = array(
-			'type' => 'variable',
-		);
-		$request             = new WP_REST_Request( 'GET', '/wc/v2/products/' . $variable->get_id() . '/variations' );
-		$request->set_query_params( $query_params );
-		$response            = $this->server->dispatch( $request );
-		$response_variations = $response->get_data();
-
-		$this->assertEquals( 200, $response->get_status() );
-		$this->assertEquals( count( $variations ), count( $response_variations ) );
-		foreach ( $response_variations as $response_variation ) {
-			$this->assertContains( $response_variation['id'], $variations );
-		}
-
-		$query_params = array(
-			'type' => 'simple',
-		);
-		$request             = new WP_REST_Request( 'GET', '/wc/v2/products/' . $variable->get_id() . '/variations' );
-		$request->set_query_params( $query_params );
-		$response            = $this->server->dispatch( $request );
-		$response_variations = $response->get_data();
-
-		$this->assertEquals( 200, $response->get_status() );
-		$this->assertCount( 0, $response_variations );
-
-		$query_params = array(
-			'type' => 'external',
-		);
-		$request             = new WP_REST_Request( 'GET', '/wc/v2/products/' . $variable->get_id() . '/variations' );
-		$request->set_query_params( $query_params );
-		$response            = $this->server->dispatch( $request );
-		$response_variations = $response->get_data();
-
-		$this->assertEquals( 200, $response->get_status() );
-		$this->assertCount( 0, $response_variations );
-
-		$query_params = array(
-			'type' => 'grouped',
-		);
-		$request             = new WP_REST_Request( 'GET', '/wc/v2/products/' . $variable->get_id() . '/variations' );
-		$request->set_query_params( $query_params );
-		$response            = $this->server->dispatch( $request );
-		$response_variations = $response->get_data();
-
-		$this->assertEquals( 200, $response->get_status() );
-		$this->assertCount( 0, $response_variations );
-	}
-
-	/**
-	 * Test getting variations by featured property.
-	 *
-	 * @since 3.5.0
-	 */
-	public function test_get_featured_variations() {
-		wp_set_current_user( $this->user );
-
-		// Create a featured product.
-		$feat_product    = WC_Helper_Product::create_variation_product();
-		$feat_product->set_featured( true );
-		$feat_product->save();
-		$feat_variations = $feat_product->get_children();
-
-		// Create a non-featured product.
-		$nonfeat_product    = WC_Helper_Product::create_variation_product();
-		$nonfeat_product->save();
-		$nonfeat_variations = $nonfeat_product->get_children();
-
-		$query_params = array(
-			'featured' => 'true',
-		);
-		$request             = new WP_REST_Request( 'GET', '/wc/v2/products/' . $feat_product->get_id() . '/variations' );
-		$request->set_query_params( $query_params );
-		$response            = $this->server->dispatch( $request );
-		$response_variations = $response->get_data();
-
-		$this->assertEquals( 200, $response->get_status() );
-		$this->assertEquals( count( $feat_variations ), count( $response_variations ) );
-		foreach ( $response_variations as $response_variation ) {
-			$this->assertContains( $response_variation['id'], $feat_variations );
-		}
-
-		$query_params = array(
-			'featured' => 'false',
-		);
-		$request             = new WP_REST_Request( 'GET', '/wc/v2/products/' . $nonfeat_product->get_id() . '/variations' );
-		$request->set_query_params( $query_params );
-		$response            = $this->server->dispatch( $request );
-		$response_variations = $response->get_data();
-
-		$this->assertEquals( 200, $response->get_status() );
-		$this->assertEquals( count( $nonfeat_variations ), count( $response_variations ) );
-		foreach ( $response_variations as $response_variation ) {
-			$this->assertContains( $response_variation['id'], $nonfeat_variations );
-		}
-	}
-
-	/**
-	 * Test getting products by shipping class property.
-	 *
-	 * @since 3.5.0
-	 */
-	public function test_get_variations_by_shipping_class() {
-		wp_set_current_user( $this->user );
-
-		// Shipping class can be set on product and variation level.
-		$shipping_class_1 = wp_insert_term( 'Bulky', 'product_shipping_class' );
-		$shipping_class_2 = wp_insert_term( 'Light', 'product_shipping_class' );
-
-		// Default shipping class for variations is set to Light.
-		$variable   = WC_Helper_Product::create_variation_product();
-		$variable->set_shipping_class_id( $shipping_class_2['term_id'] );
-		$variations = $variable->get_available_variations();
-
-		// Bulky shipping class for first variation.
-		$variation_0 = wc_get_product( $variations[0]['variation_id'] );
-		$variation_0->set_shipping_class_id( $shipping_class_1['term_id'] );
-		$variation_0->save();
-
-		$variable->save();
-
-		// Test Bulky shipping class.
-		$query_params = array(
-			'shipping_class' => (string) $shipping_class_1['term_id'],
-		);
-		$request             = new WP_REST_Request( 'GET', '/wc/v2/products/' . $variable->get_id() . '/variations' );
-		$request->set_query_params( $query_params );
-		$response            = $this->server->dispatch( $request );
-		$response_variations = $response->get_data();
-
-		$this->assertEquals( 200, $response->get_status() );
-		$this->assertEquals( 1, count( $response_variations ) );
-		foreach ( $response_variations as $response_variation ) {
-			$this->assertEquals( $response_variation['id'], $variations[0]['variation_id'] );
-		}
-
-		// Test Light shipping class.
-		$query_params = array(
-			'shipping_class' => (string) $shipping_class_2['term_id'],
-		);
-		$request             = new WP_REST_Request( 'GET', '/wc/v2/products/' . $variable->get_id() . '/variations' );
-		$request->set_query_params( $query_params );
-		$response            = $this->server->dispatch( $request );
-		$response_variations = $response->get_data();
-
-		$this->assertEquals( 200, $response->get_status() );
-		$this->assertEquals( 1, count( $response_variations ) );
-		foreach ( $response_variations as $response_variation ) {
-			$this->assertEquals( $response_variation['id'], $variations[1]['variation_id'] );
-		}
-	}
-
-	/**
-	 * Test getting variations filtered by tag.
-	 *
-	 * @since 3.5.0
-	 */
-	public function test_get_variations_by_tag() {
-		wp_set_current_user( $this->user );
-
-		$test_tag_1 = wp_insert_term( 'Tag 1', 'product_tag' );
-
-		// Variable product with a tag.
-		$variable_product = WC_Helper_Product::create_variation_product();
-		$variable_product->set_tag_ids( array( $test_tag_1['term_id'] ) );
-		$variable_product->save();
-		$variations       = $variable_product->get_children();
-
-		// Variable product without a tag.
-		$variable_product_2 = WC_Helper_Product::create_variation_product();
-
-		$query_params = array(
-			'tag' => (string) $test_tag_1['term_id'],
-		);
-		$request             = new WP_REST_Request( 'GET', '/wc/v2/products/' . $variable_product->get_id() . '/variations' );
-		$request->set_query_params( $query_params );
-		$response            = $this->server->dispatch( $request );
-		$response_variations = $response->get_data();
-
-		$this->assertEquals( 200, $response->get_status() );
-		$this->assertEquals( count( $variations ), count( $response_variations ) );
-		foreach ( $response_variations as $response_variation ) {
-			$this->assertContains( $response_variation['id'], $variations );
-		}
-
-		$query_params = array(
-			'tag' => (string) $test_tag_1['term_id'],
-		);
-		$request             = new WP_REST_Request( 'GET', '/wc/v2/products/' . $variable_product_2->get_id() . '/variations' );
-		$request->set_query_params( $query_params );
-		$response            = $this->server->dispatch( $request );
-		$response_variations = $response->get_data();
-
-		$this->assertEquals( 200, $response->get_status() );
-		$this->assertEquals( 0, count( $response_variations ) );
-	}
-
-	/**
-	 * Test getting product variations by global attribute.
-	 *
-	 * @since 3.5.0
-	 */
-	public function test_get_product_by_attribute() {
-		wp_set_current_user( $this->user );
-
-		// Variable product with 2 different variations.
-		$variable_product = WC_Helper_Product::create_variation_product();
-
-		// Create one variation without attribute value.
-		$variation_3 = new WC_Product_Variation();
-		$variation_3->set_props( array(
-			'parent_id'     => $variable_product->get_id(),
-			'sku'           => 'DUMMY SKU VARIABLE NOSIZE',
-			'regular_price' => 16,
-		) );
-		$variation_3->save();
-
-		$variations       = $variable_product->get_available_variations();
-
-		foreach ( $variations as $variation ) {
-			$attrib_value = isset( $variation['attributes']['attribute_pa_size'] ) ? $variation['attributes']['attribute_pa_size'] : null;
-			// Skip testing without attribute.
-			if ( ! $attrib_value ) {
-				continue;
-			}
-			$query_params = array(
-				'attribute'      => 'pa_size',
-				'attribute_term' => (string) get_term_by( 'slug', $attrib_value, 'pa_size' )->term_id,
-			);
-			$expected_product_ids = array( $variation['variation_id'] );
-			$request             = new WP_REST_Request( 'GET', '/wc/v2/products/' . $variable_product->get_id() . '/variations' );
-			$request->set_query_params( $query_params );
-			$response            = $this->server->dispatch( $request );
-			$response_variations = $response->get_data();
-
-			$this->assertEquals( 200, $response->get_status() );
-			$this->assertEquals( 1, count( $response_variations ) );
-			foreach ( $response_variations as $response_variation ) {
-				$this->assertContains( $response_variation['id'], $expected_product_ids );
-			}
-		}
-	}
 }