1 file changed, 8 insertions, 2 deletions
diff --git a/tests/t0507-hooks.sh b/tests/t0507-hooks.sh
index 275a12b..23a7a6d 100755
--- a/tests/t0507-hooks.sh
+++ b/tests/t0507-hooks.sh
@@ -347,13 +347,19 @@ do
 		test_grep ! "^-r-------" modes
 	'
 
+	# The newest layer is the last line of the chain, and it has to be one
+	# the push itself added.
 	test_expect_success "a later push moves the graph on under $shell" '
-		cat graph-$shell.git/objects/info/commit-graphs/commit-graph-chain >chain-$shell &&
+		graphs=graph-$shell.git/objects/info/commit-graphs &&
+		cp $graphs/commit-graph-chain chain-$shell &&
 		test_commit -C work graph-$shell &&
 		git -C work push -q ../graph-$shell.git HEAD:main &&
 		(cd graph-$shell.git && $shell "$HOOK_DIRECTORY/post-receive.commit-graph" 2>../err) &&
 		test_must_be_empty err &&
-		! test_cmp chain-$shell graph-$shell.git/objects/info/commit-graphs/commit-graph-chain &&
+		newest=$(tail -n 1 $graphs/commit-graph-chain) &&
+		test -n "$newest" &&
+		test_path_is_file $graphs/graph-$newest.graph &&
+		test_grep ! "^$newest\$" chain-$shell &&
 		git -C graph-$shell.git commit-graph verify
 	'
 done