[doc] add note explaining when jest.setTimeout should be called

jestjs · Aug 9, 2018 · 2e4b4be · 2e4b4be
1 parent db28956
commit 2e4b4be
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diff --git a/website/versioned_docs/version-22.2/JestObjectAPI.md b/website/versioned_docs/version-22.2/JestObjectAPI.md
@@ -283,6 +283,8 @@ Set the default timeout interval for tests and before/after hooks in millisecond
 
 _Note: The default timeout interval is 5 seconds if this method is not called._
 
+_Note: The method must be called after the test framework is installed in the environment and before the test runs. A good place to do this is in the `setupTestFrameworkScriptFile`._
+
 Example:
 
 ```js