1 files changed, 4 insertions, 0 deletions
diff --git a/t/README b/t/README
index 204b9f4cc5..3ea6c85460 100644
--- a/t/README
+++ b/t/README
@@ -323,6 +323,10 @@ GIT_TEST_VALIDATE_INDEX_CACHE_ENTRIES=<boolean> checks that cache-tree
 records are valid when the index is written out or after a merge. This
 is mostly to catch missing invalidation. Default is true.
 
+GIT_TEST_COMMIT_GRAPH=<boolean>, when true, forces the commit-graph to
+be written after every 'git commit' command, and overrides the
+'core.commitGraph' setting to true.
+
 Naming Tests
 ------------