doc: mention test runner retry attemp is zero based

MoLow · aduh95 · commit 938af9be01b3 · 2026-05-07T15:41:32.000+02:00
PR-URL: #62504 Reviewed-By: Chemi Atlow <chemi@atlow.co.il> Reviewed-By: Benjamin Gruenbaum <benjamingr@gmail.com> Reviewed-By: Pietro Marchini <pietro.marchini94@gmail.com>
diff --git a/doc/api/test.md b/doc/api/test.md
@@ -3867,7 +3867,9 @@ added: v25.0.0
 
 * Type: {number}
 
-Number of times the test has been attempted.
+The attempt number of the test. This value is zero-based, so the first attempt is `0`,
+the second attempt is `1`, and so on. This property is useful in conjunction with the
+`--test-rerun-failures` option to determine which attempt the test is currently running.
 
 ### `context.workerId`
 
@@ -4240,9 +4242,9 @@ added: REPLACEME
 
 * Type: {number}
 
-The current attempt number of the suite. Used in conjunction with the
-`--test-rerun-failures` option to determine the attempt number of the current
-run.
+The attempt number of the suite. This value is zero-based, so the first attempt is `0`,
+the second attempt is `1`, and so on. This property is useful in conjunction with the
+`--test-rerun-failures` option to determine the attempt number of the current run.
 
 ### `context.diagnostic(message)`
 
