diff --git a/topics/basics/testing_plugins/light_and_heavy_tests.md b/topics/basics/testing_plugins/light_and_heavy_tests.md
index fd3fda98e..401b45b86 100644
--- a/topics/basics/testing_plugins/light_and_heavy_tests.md
+++ b/topics/basics/testing_plugins/light_and_heavy_tests.md
@@ -1,9 +1,11 @@
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# Light and Heavy Tests
Introduction to light tests reusing a single project for multiple tests, and heavy tests creating a new project for each test.
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Plugin tests run in a real, rather than mocked, IntelliJ Platform environment and use real implementations for most application and project [services](plugin_services.md).
diff --git a/topics/basics/testing_plugins/test_project_and_testdata_directories.md b/topics/basics/testing_plugins/test_project_and_testdata_directories.md
index 19f78b615..2abf2490d 100644
--- a/topics/basics/testing_plugins/test_project_and_testdata_directories.md
+++ b/topics/basics/testing_plugins/test_project_and_testdata_directories.md
@@ -1,9 +1,11 @@
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# Test Project and Testdata Directories
Adding test data to test projects used during tests execution.
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The test fixture creates a *test project* environment.
diff --git a/topics/basics/testing_plugins/testing_highlighting.md b/topics/basics/testing_plugins/testing_highlighting.md
index 41724e235..0d4ed2dad 100644
--- a/topics/basics/testing_plugins/testing_highlighting.md
+++ b/topics/basics/testing_plugins/testing_highlighting.md
@@ -1,9 +1,11 @@
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# Testing Highlighting
Testing highlighting the code highlighted with various APIs.
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When writing plugin tests, a common task is testing various kinds of highlighting (inspections, annotators, parser error highlighting, etc.).
diff --git a/topics/basics/testing_plugins/testing_plugins.md b/topics/basics/testing_plugins/testing_plugins.md
index 2f135e11f..b5fa7049c 100644
--- a/topics/basics/testing_plugins/testing_plugins.md
+++ b/topics/basics/testing_plugins/testing_plugins.md
@@ -36,11 +36,12 @@ Check out [](integration_tests_intro.md) tutorial that guides through setup proc
> Check out [this step-by-step tutorial](writing_tests_for_plugins.md) teaching how to write and run automated tests for your custom language plugin.
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> Also, code samples
> [comparing_string_references_inspection](%gh-sdk-samples-master%/comparing_string_references_inspection)
> and [conditional_operator_intention](%gh-sdk-samples-master%/conditional_operator_intention) demonstrate using tests.
>
-{style="note"}
+{style="note" title="Testing Tutorial and Code Samples"}
diff --git a/topics/basics/testing_plugins/tests_and_fixtures.md b/topics/basics/testing_plugins/tests_and_fixtures.md
index 86b82fb58..89bc06f35 100644
--- a/topics/basics/testing_plugins/tests_and_fixtures.md
+++ b/topics/basics/testing_plugins/tests_and_fixtures.md
@@ -4,6 +4,8 @@
Main approaches for implementing tests.
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The IntelliJ Platform testing infrastructure is not tied to any specific test framework.
In fact, the IntelliJ IDEA Team uses [JUnit](https://junit.org), [TestNG](https://testng.org), and [Cucumber](https://cucumber.io/) for testing different parts of the project.
However, most of the tests are written using JUnit 3.
diff --git a/topics/basics/testing_plugins/writing_tests.md b/topics/basics/testing_plugins/writing_tests.md
index 1ac51e213..441e849ec 100644
--- a/topics/basics/testing_plugins/writing_tests.md
+++ b/topics/basics/testing_plugins/writing_tests.md
@@ -1,9 +1,11 @@
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# Writing Tests
Introduction to implementing tests.
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In most cases, once you have the necessary files copied to the test project and loaded into the in-memory editor, writing the test itself involves invoking your plugin code and has few dependencies on the test framework.