hashmap: add simplified hashmap_get_from_hash() API

diff --git a/t/t4201-shortlog.sh b/t/t4201-shortlog.sh
index a702bb5bf7e8b45cb0be2c30f7eb4322d792fcd2..97fcb31d6eb516b195e9e26a8716dbf484fcc616 100755 (executable)
--- a/t/t4201-shortlog.sh
+++ b/t/t4201-shortlog.sh
@@ -172,6 +172,22 @@ test_expect_success 'shortlog encoding' '
        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 &&