builtin/blame.c: struct blame_entry does not need a prev link

diff --git a/t/t1508-at-combinations.sh b/t/t1508-at-combinations.sh
index d45a4103627960b79af8b89cb06d05be301d5acc..ceb844985f97e9472ffcc3fe2f375912d126a4e8 100755 (executable)
--- a/t/t1508-at-combinations.sh
+++ b/t/t1508-at-combinations.sh
@@ -32,6 +32,9 @@ test_expect_success 'setup' '
        git checkout -b upstream-branch &&
        test_commit upstream-one &&
        test_commit upstream-two &&
+       git checkout -b @/at-test &&
+       git checkout -b @@/at-test &&
+       git checkout -b @at-test &&
        git checkout -b old-branch &&
        test_commit old-one &&
        test_commit old-two &&
@@ -44,13 +47,39 @@ test_expect_success 'setup' '
 
 check HEAD ref refs/heads/new-branch
 check "@{1}" commit new-one
+check "HEAD@{1}" commit new-one
+check "@{now}" commit new-two
+check "HEAD@{now}" commit new-two
 check "@{-1}" ref refs/heads/old-branch
+check "@{-1}@{0}" commit old-two
 check "@{-1}@{1}" commit old-one
 check "@{u}" ref refs/heads/upstream-branch
+check "HEAD@{u}" ref refs/heads/upstream-branch
 check "@{u}@{1}" commit upstream-one
 check "@{-1}@{u}" ref refs/heads/master
 check "@{-1}@{u}@{1}" commit master-one
+check "@" commit new-two
+check "@@{u}" ref refs/heads/upstream-branch
+check "@@/at-test" ref refs/heads/@@/at-test
+check "@/at-test" ref refs/heads/@/at-test
+check "@at-test" ref refs/heads/@at-test
 nonsense "@{u}@{-1}"
+nonsense "@{0}@{0}"
 nonsense "@{1}@{u}"
+nonsense "HEAD@{-1}"
+nonsense "@{-1}@{-1}"
+
+# @{N} versus HEAD@{N}
+
+check "HEAD@{3}" commit old-two
+nonsense "@{3}"
+
+test_expect_success 'switch to old-branch' '
+       git checkout old-branch
+'
+
+check HEAD ref refs/heads/old-branch
+check "HEAD@{1}" commit new-two
+check "@{1}" commit old-one
 
 test_done