git cat-file tag X/2 > actual &&
test_cmp expect actual
'
+test_expect_success 'setup --prune-empty comparisons' '
+ git checkout --orphan master-no-a &&
+ git rm -rf . &&
+ unset test_tick &&
+ test_tick &&
+ GIT_COMMITTER_DATE="@0 +0000" GIT_AUTHOR_DATE="@0 +0000" &&
+ test_commit --notick B B.t B Bx &&
+ git checkout -b branch-no-a Bx &&
+ test_commit D D.t D Dx &&
+ mkdir dir &&
+ test_commit dir/D dir/D.t dir/D dir/Dx &&
+ test_commit E E.t E Ex &&
+ git checkout master-no-a &&
+ test_commit C C.t C Cx &&
+ git checkout branch-no-a &&
+ git merge Cx -m "Merge tag '\''C'\'' into branch" &&
+ git tag Fx &&
+ test_commit G G.t G Gx &&
+ test_commit H H.t H Hx &&
+ git checkout branch
+'
test_expect_success 'Prune empty commits' '
git rev-list HEAD > expect &&
test_cmp expect actual
'
+test_expect_success '--prune-empty is able to prune root commit' '
+ git rev-list branch-no-a >expect &&
+ git branch testing H &&
+ git filter-branch -f --prune-empty --index-filter "git update-index --remove A.t" testing &&
+ git rev-list testing >actual &&
+ git branch -D testing &&
+ test_cmp expect actual
+'
+
+test_expect_success '--prune-empty is able to prune entire branch' '
+ git branch prune-entire B &&
+ git filter-branch -f --prune-empty --index-filter "git update-index --remove A.t B.t" prune-entire &&
+ test_path_is_missing .git/refs/heads/prune-entire &&
+ test_must_fail git reflog exists refs/heads/prune-entire
+'
+
test_expect_success '--remap-to-ancestor with filename filters' '
git checkout master &&
git reset --hard A &&