test_expect_success 'disambiguate tree' '
commit=$(echo "d7xm" | git commit-tree 000000000) &&
+ # this commit is fffff2e and not ambiguous with the 00000* objects
test $(git rev-parse $commit^{tree}) = $(git rev-parse 0000000000cdc)
'
test_expect_success 'disambiguate commit' '
commit=$(echo "hoaxj" | git commit-tree 0000000000cdc -p 000000000) &&
+ # this commit is ffffffd8 and not ambiguous with the 00000* objects
test $(git rev-parse $commit^) = $(git rev-parse 0000000000e4f)
'
test_expect_success 'log name1..name2 takes only commit-ishes on both ends' '
+ # These are underspecified from the prefix-length point of view
+ # to disambiguate the commit with other objects, but there is only
+ # one commit that has 00000* prefix at this point.
git log 000000000..000000000 &&
git log ..000000000 &&
git log 000000000.. &&
'
test_expect_success 'rev-parse name1..name2 takes only commit-ishes on both ends' '
+ # Likewise.
git rev-parse 000000000..000000000 &&
git rev-parse ..000000000 &&
git rev-parse 000000000..
'
test_expect_success 'git log takes only commit-ish' '
+ # Likewise.
git log 000000000
'
test_expect_success 'git reset takes only commit-ish' '
+ # Likewise.
git reset 000000000
'
'
test_expect_failure 'two semi-ambiguous commit-ish' '
+ # At this point, we have a tag 0000000000f8f that points
+ # at a commit 0000000000e4f, and a tree and a blob that
+ # share 0000000000 prefix with these tag and commit.
+ #
# Once the parser becomes ultra-smart, it could notice that
- # 110282 before ^{commit} name many different objects, but
+ # 0000000000 before ^{commit} name many different objects, but
# that only two (HEAD and v1.0.0 tag) can be peeled to commit,
# and that peeling them down to commit yield the same commit
# without ambiguity.
- git rev-parse --verify 110282^{commit} &&
+ git rev-parse --verify 0000000000^{commit} &&
# likewise
- git log 000000000..000000000 &&
- git log ..000000000 &&
- git log 000000000.. &&
- git log 000000000...000000000 &&
- git log ...000000000 &&
- git log 000000000...
+ git log 0000000000..0000000000 &&
+ git log ..0000000000 &&
+ git log 0000000000.. &&
+ git log 0000000000...0000000000 &&
+ git log ...0000000000 &&
+ git log 0000000000...
'
test_expect_failure 'three semi-ambiguous tree-ish' '
# Likewise for tree-ish. HEAD, v1.0.0 and HEAD^{tree} share
# the prefix but peeling them to tree yields the same thing
- git rev-parse --verify 000000000^{tree}
+ git rev-parse --verify 0000000000^{tree}
'
test_expect_success 'parse describe name' '
# Now there are many commits that begin with the
# common prefix, none of these should pick one at
# random. They all should result in ambiguity errors.
- test_must_fail git rev-parse --verify 110282^{commit} &&
+ test_must_fail git rev-parse --verify 00000000^{commit} &&
# likewise
test_must_fail git log 000000000..000000000 &&
test "$(sed -e "s/^\(.........\).*/\1/" actual | sort -u)" = 000000000
'
+test_expect_success 'ambiguous 40-hex ref' '
+ TREE=$(git mktree </dev/null) &&
+ REF=`git rev-parse HEAD` &&
+ VAL=$(git commit-tree $TREE </dev/null) &&
+ git update-ref refs/heads/$REF $VAL &&
+ test `git rev-parse $REF 2>err` = $REF &&
+ grep "refname.*${REF}.*ambiguous" err
+'
+
+test_expect_success 'ambiguous short sha1 ref' '
+ TREE=$(git mktree </dev/null) &&
+ REF=`git rev-parse --short HEAD` &&
+ VAL=$(git commit-tree $TREE </dev/null) &&
+ git update-ref refs/heads/$REF $VAL &&
+ test `git rev-parse $REF 2>err` = $VAL &&
+ grep "refname.*${REF}.*ambiguous" err
+'
+
test_done