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t1015: demonstrate directory/file conflict recovery failures

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Several "recovery" commands outright fail or do not fully recover
when directory-file conflicts are present.  This includes:
  * git read-tree --reset HEAD
  * git am --skip
  * git am --abort
  * git merge --abort
  * git reset --hard

Add testcases documenting these shortcomings.

Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Elijah Newren 2018-07-31 10:12:04 -07:00 committed by Junio C Hamano
parent 53f9a3e157
commit 25c200a700
1 changed files with 123 additions and 0 deletions
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123
t/t1015-read-index-unmerged.sh Executable file
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#!/bin/sh
test_description='Test various callers of read_index_unmerged'
. ./test-lib.sh
test_expect_success 'setup modify/delete + directory/file conflict' '
test_create_repo df_plus_modify_delete &&
(
cd df_plus_modify_delete &&
test_write_lines a b c d e f g h >letters &&
git add letters &&
git commit -m initial &&
git checkout -b modify &&
# Throw in letters.txt for sorting order fun
# ("letters.txt" sorts between "letters" and "letters/file")
echo i >>letters &&
echo "version 2" >letters.txt &&
git add letters letters.txt &&
git commit -m modified &&
git checkout -b delete HEAD^ &&
git rm letters &&
mkdir letters &&
>letters/file &&
echo "version 1" >letters.txt &&
git add letters letters.txt &&
git commit -m deleted
)
'
test_expect_failure 'read-tree --reset cleans unmerged entries' '
test_when_finished "git -C df_plus_modify_delete clean -f" &&
test_when_finished "git -C df_plus_modify_delete reset --hard" &&
(
cd df_plus_modify_delete &&
git checkout delete^0 &&
test_must_fail git merge modify &&
git read-tree --reset HEAD &&
git ls-files -u >conflicts &&
test_must_be_empty conflicts
)
'
test_expect_failure 'One reset --hard cleans unmerged entries' '
test_when_finished "git -C df_plus_modify_delete clean -f" &&
test_when_finished "git -C df_plus_modify_delete reset --hard" &&
(
cd df_plus_modify_delete &&
git checkout delete^0 &&
test_must_fail git merge modify &&
git reset --hard &&
test_path_is_missing .git/MERGE_HEAD &&
git ls-files -u >conflicts &&
test_must_be_empty conflicts
)
'
test_expect_success 'setup directory/file conflict + simple edit/edit' '
test_create_repo df_plus_edit_edit &&
(
cd df_plus_edit_edit &&
test_seq 1 10 >numbers &&
git add numbers &&
git commit -m initial &&
git checkout -b d-edit &&
mkdir foo &&
echo content >foo/bar &&
git add foo &&
echo 11 >>numbers &&
git add numbers &&
git commit -m "directory and edit" &&
git checkout -b f-edit d-edit^1 &&
echo content >foo &&
git add foo &&
echo eleven >>numbers &&
git add numbers &&
git commit -m "file and edit"
)
'
test_expect_failure 'git merge --abort succeeds despite D/F conflict' '
test_when_finished "git -C df_plus_edit_edit clean -f" &&
test_when_finished "git -C df_plus_edit_edit reset --hard" &&
(
cd df_plus_edit_edit &&
git checkout f-edit^0 &&
test_must_fail git merge d-edit^0 &&
git merge --abort &&
test_path_is_missing .git/MERGE_HEAD &&
git ls-files -u >conflicts &&
test_must_be_empty conflicts
)
'
test_expect_failure 'git am --skip succeeds despite D/F conflict' '
test_when_finished "git -C df_plus_edit_edit clean -f" &&
test_when_finished "git -C df_plus_edit_edit reset --hard" &&
(
cd df_plus_edit_edit &&
git checkout f-edit^0 &&
git format-patch -1 d-edit &&
test_must_fail git am -3 0001*.patch &&
git am --skip &&
test_path_is_missing .git/rebase-apply &&
git ls-files -u >conflicts &&
test_must_be_empty conflicts
)
'
test_done