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t9300: document fast-import empty path issues 

When given an empty path, fast-import sometimes reports "missing"
instead of using the root tree object.  On top of this, for "ls" and
file copy (but not move) it dies with "Empty path component found in
input".

Document this behaviour with failing test cases.

Reported-by: Dave Abrahams <dave@boostpro.com>
Signed-off-by: John Keeping <john@keeping.me.uk>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
John Keeping 2013-06-23 15:58:19 +01:00 committed by Junio C Hamano
parent edca415256
commit aca70610b6
1 changed files with 65 additions and 0 deletions
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65
t/t9300-fast-import.sh
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@ -1031,6 +1031,32 @@ test_expect_success \
git diff-tree -M -r M3^ M3 >actual &&
compare_diff_raw expect actual'
cat >input <<INPUT_END
commit refs/heads/M4
committer $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL> $GIT_COMMITTER_DATE
data <<COMMIT
rename root
COMMIT
from refs/heads/M2^0
R "" sub
INPUT_END
cat >expect <<EOF
:100644 100644 7123f7f44e39be127c5eb701e5968176ee9d78b1 7123f7f44e39be127c5eb701e5968176ee9d78b1 R100 file2/oldf sub/file2/oldf
:100755 100755 85df50785d62d3b05ab03d9cbf7e4a0b49449730 85df50785d62d3b05ab03d9cbf7e4a0b49449730 R100 file4 sub/file4
:100755 100755 f1fb5da718392694d0076d677d6d0e364c79b0bc f1fb5da718392694d0076d677d6d0e364c79b0bc R100 i/am/new/to/you sub/i/am/new/to/you
:100755 100755 e74b7d465e52746be2b4bae983670711e6e66657 e74b7d465e52746be2b4bae983670711e6e66657 R100 newdir/exec.sh sub/newdir/exec.sh
:100644 100644 fcf778cda181eaa1cbc9e9ce3a2e15ee9f9fe791 fcf778cda181eaa1cbc9e9ce3a2e15ee9f9fe791 R100 newdir/interesting sub/newdir/interesting
EOF
test_expect_failure \
'M: rename root to subdirectory' \
'git fast-import <input &&
git diff-tree -M -r M4^ M4 >actual &&
cat actual &&
compare_diff_raw expect actual'
###
### series N
###
@ -1227,6 +1253,29 @@ test_expect_success \
git diff-tree -C --find-copies-harder -r N4 N6 >actual &&
compare_diff_raw expect actual'
test_expect_failure \
'N: copy root by path' \
'cat >expect <<-\EOF &&
:100755 100755 f1fb5da718392694d0076d677d6d0e364c79b0bc f1fb5da718392694d0076d677d6d0e364c79b0bc C100 file2/newf oldroot/file2/newf
:100644 100644 7123f7f44e39be127c5eb701e5968176ee9d78b1 7123f7f44e39be127c5eb701e5968176ee9d78b1 C100 file2/oldf oldroot/file2/oldf
:100755 100755 85df50785d62d3b05ab03d9cbf7e4a0b49449730 85df50785d62d3b05ab03d9cbf7e4a0b49449730 C100 file4 oldroot/file4
:100755 100755 e74b7d465e52746be2b4bae983670711e6e66657 e74b7d465e52746be2b4bae983670711e6e66657 C100 newdir/exec.sh oldroot/newdir/exec.sh
:100644 100644 fcf778cda181eaa1cbc9e9ce3a2e15ee9f9fe791 fcf778cda181eaa1cbc9e9ce3a2e15ee9f9fe791 C100 newdir/interesting oldroot/newdir/interesting
EOF
cat >input <<-INPUT_END &&
commit refs/heads/N-copy-root-path
committer $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL> $GIT_COMMITTER_DATE
data <<COMMIT
copy root directory by (empty) path
COMMIT
from refs/heads/branch^0
C "" oldroot
INPUT_END
git fast-import <input &&
git diff-tree -C --find-copies-harder -r branch N-copy-root-path >actual &&
compare_diff_raw expect actual'
test_expect_success \
'N: delete directory by copying' \
'cat >expect <<-\EOF &&
@ -2934,4 +2983,20 @@ test_expect_success 'S: ls with garbage after sha1 must fail' '
test_i18ngrep "space after tree-ish" err
'
###
### series T (ls)
###
# Setup is carried over from series S.
test_expect_failure 'T: ls root tree' '
sed -e "s/Z\$//" >expect <<-EOF &&
040000 tree $(git rev-parse S^{tree}) Z
EOF
sha1=$(git rev-parse --verify S) &&
git fast-import --import-marks=marks <<-EOF >actual &&
ls $sha1 ""
EOF
test_cmp expect actual
'
test_done