Polish contribution

See: gh-456

Author: sbrannen

src/docs/asciidoc/testing.adoc

@@ -3520,17 +3520,25 @@ Annotating a test method with `@Transactional` causes the test to be run within
 transaction that is, by default, automatically rolled back after completion of the test.
 If a test class is annotated with `@Transactional`, each test method within that class
 hierarchy runs within a transaction. Test methods that are not annotated with
-`@Transactional` (at the class or method level) are not run within a transaction.
-Furthermore, tests that are annotated with `@Transactional` but have the `propagation`
-type set to `NOT_SUPPORTED` are not run within a transaction.
+`@Transactional` (at the class or method level) are not run within a transaction. Note
+that `@Transactional` is not supported on test lifecycle methods — for example, methods
+annotated with JUnit Jupiter's `@BeforeAll`, `@BeforeEach`, etc. Furthermore, tests that
+are annotated with `@Transactional` but have the `propagation` type set to
+`NOT_SUPPORTED` are not run within a transaction.
 
 [TIP]
 ====
-When using TestNG `@BeforeClass`,`@BeforeSuite` methods can not be used with the 
-`@Transactional` annotation, as they are considered non transactional methods by the 
-the spring text contetxt framework. However, you can inject a `PlatfromTransactionManager`
-or a `TransactionTemplate` and use it within `@BeforeClass` method to perform a 
-transaction.
+Method-level lifecycle methods — for example, methods annotated with JUnit Jupiter's
+`@BeforeEach` or `@AfterEach` — are run within a test-managed transaction. On the other
+hand, suite-level and class-level lifecycle methods — for example, methods annotated with
+JUnit Jupiter's `@BeforeAll` or `@AfterAll` and methods annotated with TestNG's
+`@BeforeSuite`, `@AfterSuite`, `@BeforeClass`, or `@AfterClass` — are _not_ run within a
+test-managed transaction.
+
+If you need to execute code in a suite-level or class-level lifecycle method within a
+transaction, you may wish to inject a corresponding `PlatformTransactionManager` into
+your test class and then use that with a `TransactionTemplate` for programmatic
+transaction management.
 ====
 
 Note that <<testcontext-support-classes-junit4,