From c57140442ca85883e90b4426c8fba36159c63803 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Yann=20C=C3=A9bron?= <yann.cebron@jetbrains.com>
Date: Thu, 16 Mar 2023 16:00:58 +0100
Subject: [PATCH] testing_faq.md: provide sample for log level config

---
 topics/basics/testing_plugins/testing_faq.md | 27 +++++++++++++++++++-
 1 file changed, 26 insertions(+), 1 deletion(-)

diff --git a/topics/basics/testing_plugins/testing_faq.md b/topics/basics/testing_plugins/testing_faq.md
index b19cebae2..e9f4ab2b1 100644
--- a/topics/basics/testing_plugins/testing_faq.md
+++ b/topics/basics/testing_plugins/testing_faq.md
@@ -61,9 +61,34 @@ In such cases, simply delete <path>test-system/caches</path> in your [sandbox di
 
 ### How to enable DEBUG/TRACE logging?
 
-Provide JVM system properties (Gradle: via `systemProperty` for `test` task) `idea.log.debug.categories` or `idea.log.trace.categories`, respectively.
+Provide JVM system properties `idea.log.debug.categories` or `idea.log.trace.categories` to specify logger category name, respectively.
 Multiple categories can be set using a comma separated value list.
 
+**Sample** Set DEBUG level for categories `com.my.plugin.ui` and `com.my.plugin.backend`:
+
+<tabs group="languages">
+<tab title="Kotlin" group-key="kotlin">
+
+```kotlin
+tasks {
+  test {
+    systemProperty("idea.log.debug.categories", "com.my.plugin.ui,com.my.plugin.backend")
+  }
+}
+```
+
+</tab>
+<tab title="Groovy" group-key="groovy">
+
+```groovy
+test {
+  systemProperty("idea.log.debug.categories", "com.my.plugin.ui,com.my.plugin.backend")
+}
+```
+
+</tab>
+</tabs>
+
 ### How to get separate logs for failing tests?
 
 Set system property `idea.split.test.logs` to `true` to generate separate test log files in <path>splitTestLogs</path> subdirectory for failing tests (WARN/ERROR level messages) (2021.3).