git shortlog HEAD~2.. > out &&
test_cmp expect out'
+test_expect_success 'shortlog ignores commits with missing authors' '
+ git commit --allow-empty -m normal &&
+ git commit --allow-empty -m soon-to-be-broken &&
+ git cat-file commit HEAD >commit.tmp &&
+ sed "/^author/d" commit.tmp >broken.tmp &&
+ commit=$(git hash-object -w -t commit --stdin <broken.tmp) &&
+ git update-ref HEAD $commit &&
+ cat >expect <<-\EOF &&
+ A U Thor (1):
+ normal
+
+ EOF
+ git shortlog HEAD~2.. >actual &&
+ test_cmp expect actual
+'
+
+test_expect_success 'shortlog with revision pseudo options' '
+ git shortlog --all &&
+ git shortlog --branches &&
+ git shortlog --exclude=refs/heads/m* --all
+'
+
test_done