diff --git a/tests/phpunit/tests/blocks/registerBlockTypeFromMetadataWithRegistry.php b/tests/phpunit/tests/blocks/registerBlockTypeFromMetadataWithRegistry.php
index 4cadfa91a33bd..b77c16660b0d9 100644
--- a/tests/phpunit/tests/blocks/registerBlockTypeFromMetadataWithRegistry.php
+++ b/tests/phpunit/tests/blocks/registerBlockTypeFromMetadataWithRegistry.php
@@ -3,6 +3,8 @@
  * Tests for WP_Block_Metadata_Registry integration with register_block_type_from_metadata().
  *
  * @group blocks
+ *
+ * @covers ::register_block_type_from_metadata
  */
 class Tests_Blocks_RegisterBlockTypeFromMetadataWithRegistry extends WP_UnitTestCase {
 	private $temp_manifest_file;
diff --git a/tests/phpunit/tests/blocks/render.php b/tests/phpunit/tests/blocks/render.php
index 7b20dac147601..e9ed6a5f492e4 100644
--- a/tests/phpunit/tests/blocks/render.php
+++ b/tests/phpunit/tests/blocks/render.php
@@ -7,6 +7,8 @@
  * @since 5.0.0
  *
  * @group blocks
+ *
+ * @covers ::do_blocks
  */
 class Tests_Blocks_Render extends WP_UnitTestCase {
 	/**
diff --git a/tests/phpunit/tests/blocks/renderReusable.php b/tests/phpunit/tests/blocks/renderReusable.php
index f38ae41a41173..0fc56bf87cf66 100644
--- a/tests/phpunit/tests/blocks/renderReusable.php
+++ b/tests/phpunit/tests/blocks/renderReusable.php
@@ -7,6 +7,8 @@
  * @since 5.0.0
  *
  * @group blocks
+ *
+ * @covers WP_Block
  */
 class Tests_Blocks_RenderReusable extends WP_UnitTestCase {
 	/**
diff --git a/tests/phpunit/tests/blocks/wpBlockList.php b/tests/phpunit/tests/blocks/wpBlockList.php
index 48b040e918f82..00f43c9ba248e 100644
--- a/tests/phpunit/tests/blocks/wpBlockList.php
+++ b/tests/phpunit/tests/blocks/wpBlockList.php
@@ -7,6 +7,8 @@
  * @since 5.5.0
  *
  * @group blocks
+ *
+ * @covers WP_Block_List
  */
 class Tests_Blocks_wpBlockList extends WP_UnitTestCase {
 
diff --git a/tests/phpunit/tests/blocks/wpBlockParser.php b/tests/phpunit/tests/blocks/wpBlockParser.php
index d88849d956dd6..813c6a5dc1639 100644
--- a/tests/phpunit/tests/blocks/wpBlockParser.php
+++ b/tests/phpunit/tests/blocks/wpBlockParser.php
@@ -7,6 +7,8 @@
  * @since 5.0.0
  *
  * @group blocks
+ *
+ * @covers WP_Block_Parser
  */
 class Tests_Blocks_wpBlockParser extends WP_UnitTestCase {
 	/**
diff --git a/tests/phpunit/tests/rewrite/numericSlugs.php b/tests/phpunit/tests/rewrite/numericSlugs.php
index c174ce4875c4d..25a51f86bdcc9 100644
--- a/tests/phpunit/tests/rewrite/numericSlugs.php
+++ b/tests/phpunit/tests/rewrite/numericSlugs.php
@@ -3,6 +3,8 @@
 /**
  * @group rewrite
  * @ticket 5305
+ *
+ * @covers ::url_to_postid
  */
 class Tests_Rewrite_NumericSlugs extends WP_UnitTestCase {
 	private $old_current_user;