commit-graph write: don't die if the existing graph is corrupt

diff --git a/t/t5318-commit-graph.sh b/t/t5318-commit-graph.sh
index 4601732b99677c05a04bbc5a40d59529bbae86c5..e80c1cac02b26239c510765cdd8fb28dc9bafba1 100755 (executable)
--- a/t/t5318-commit-graph.sh
+++ b/t/t5318-commit-graph.sh
@@ -377,7 +377,13 @@ corrupt_graph_verify() {
        test_must_fail git commit-graph verify 2>test_err &&
        grep -v "^+" test_err >err &&
        test_i18ngrep "$grepstr" err &&
-       git status --short
+       if test "$2" != "no-copy"
+       then
+               cp $objdir/info/commit-graph commit-graph-pre-write-test
+       fi &&
+       git status --short &&
+       GIT_TEST_COMMIT_GRAPH_DIE_ON_LOAD=true git commit-graph write &&
+       git commit-graph verify
 }
 
 # usage: corrupt_graph_and_verify <position> <data> <string> [<zero_pos>]
@@ -403,7 +409,7 @@ corrupt_graph_and_verify() {
 test_expect_success POSIXPERM,SANITY 'detect permission problem' '
        corrupt_graph_setup &&
        chmod 000 $objdir/info/commit-graph &&
-       corrupt_graph_verify "Could not open"
+       corrupt_graph_verify "Could not open" "no-copy"
 '
 
 test_expect_success 'detect too small' '
@@ -522,6 +528,7 @@ test_expect_success 'git fsck (checks commit-graph)' '
        git fsck &&
        corrupt_graph_and_verify $GRAPH_BYTE_FOOTER "\00" \
                "incorrect checksum" &&
+       cp commit-graph-pre-write-test $objdir/info/commit-graph &&
        test_must_fail git fsck
 '