git fsck
'
-test_expect_success 'that relative alternate is only possible for current dir' '
- test_must_fail git -C D fsck
+test_expect_success 'that relative alternate is recursive' '
+ git -C D fsck
+'
+
+# we can reach "A" from our new repo both directly, and via "C".
+# The deep/subdir is there to make sure we are not doing a stupid
+# pure-text comparison of the alternate names.
+test_expect_success 'relative duplicates are eliminated' '
+ mkdir -p deep/subdir &&
+ git init --bare deep/subdir/duplicate.git &&
+ cat >deep/subdir/duplicate.git/objects/info/alternates <<-\EOF &&
+ ../../../../C/.git/objects
+ ../../../../A/.git/objects
+ EOF
+ cat >expect <<-EOF &&
+ alternate: $(pwd)/C/.git/objects
+ alternate: $(pwd)/B/.git/objects
+ alternate: $(pwd)/A/.git/objects
+ EOF
+ git -C deep/subdir/duplicate.git count-objects -v >actual &&
+ grep ^alternate: actual >actual.alternates &&
+ test_cmp expect actual.alternates
+'
+
+test_expect_success CASE_INSENSITIVE_FS 'dup finding can be case-insensitive' '
+ git init --bare insensitive.git &&
+ # the previous entry for "A" will have used uppercase
+ cat >insensitive.git/objects/info/alternates <<-\EOF &&
+ ../../C/.git/objects
+ ../../a/.git/objects
+ EOF
+ cat >expect <<-EOF &&
+ alternate: $(pwd)/C/.git/objects
+ alternate: $(pwd)/B/.git/objects
+ alternate: $(pwd)/A/.git/objects
+ EOF
+ git -C insensitive.git count-objects -v >actual &&
+ grep ^alternate: actual >actual.alternates &&
+ test_cmp expect actual.alternates
'
test_done