diff options
Diffstat (limited to 't')
| -rwxr-xr-x | t/t6036-recursive-corner-cases.sh | 194 | ||||
| -rwxr-xr-x | t/t6042-merge-rename-corner-cases.sh | 118 |
2 files changed, 312 insertions, 0 deletions
diff --git a/t/t6036-recursive-corner-cases.sh b/t/t6036-recursive-corner-cases.sh index e1cef58f2a..f229d7e47b 100755 --- a/t/t6036-recursive-corner-cases.sh +++ b/t/t6036-recursive-corner-cases.sh @@ -1402,4 +1402,198 @@ test_expect_failure 'check conflicting modes for regular file' ' ) ' +# Setup: +# L1---L2 +# / \ / \ +# master X ? +# \ / \ / +# R1---R2 +# +# Where: +# master has two files, named 'b' and 'a' +# branches L1 and R1 both modify each of the two files in conflicting ways +# +# L2 is a merge of R1 into L1; more on it later. +# R2 is a merge of L1 into R1; more on it later. +# +# X is an auto-generated merge-base used when merging L2 and R2. +# since X is a merge of L1 and R1, it has conflicting versions of each file +# +# More about L2 and R2: +# - both resolve the conflicts in 'b' and 'a' differently +# - L2 renames 'b' to 'm' +# - R2 renames 'a' to 'm' +# +# In the end, in file 'm' we have four different conflicting files (from +# two versions of 'b' and two of 'a'). In addition, if +# merge.conflictstyle is diff3, then the base version also has +# conflict markers of its own, leading to a total of three levels of +# conflict markers. This is a pretty weird corner case, but we just want +# to ensure that we handle it as well as practical. + +test_expect_success 'setup nested conflicts' ' + test_create_repo nested_conflicts && + ( + cd nested_conflicts && + + # Create some related files now + for i in $(test_seq 1 10) + do + echo Random base content line $i + done >initial && + + cp initial b_L1 && + cp initial b_R1 && + cp initial b_L2 && + cp initial b_R2 && + cp initial a_L1 && + cp initial a_R1 && + cp initial a_L2 && + cp initial a_R2 && + + test_write_lines b b_L1 >>b_L1 && + test_write_lines b b_R1 >>b_R1 && + test_write_lines b b_L2 >>b_L2 && + test_write_lines b b_R2 >>b_R2 && + test_write_lines a a_L1 >>a_L1 && + test_write_lines a a_R1 >>a_R1 && + test_write_lines a a_L2 >>a_L2 && + test_write_lines a a_R2 >>a_R2 && + + # Setup original commit (or merge-base), consisting of + # files named "b" and "a" + cp initial b && + cp initial a && + echo b >>b && + echo a >>a && + git add b a && + test_tick && git commit -m initial && + + git branch L && + git branch R && + + # Handle the left side + git checkout L && + mv -f b_L1 b && + mv -f a_L1 a && + git add b a && + test_tick && git commit -m "version L1 of files" && + git tag L1 && + + # Handle the right side + git checkout R && + mv -f b_R1 b && + mv -f a_R1 a && + git add b a && + test_tick && git commit -m "verson R1 of files" && + git tag R1 && + + # Create first merge on left side + git checkout L && + test_must_fail git merge R1 && + mv -f b_L2 b && + mv -f a_L2 a && + git add b a && + git mv b m && + test_tick && git commit -m "left merge, rename b->m" && + git tag L2 && + + # Create first merge on right side + git checkout R && + test_must_fail git merge L1 && + mv -f b_R2 b && + mv -f a_R2 a && + git add b a && + git mv a m && + test_tick && git commit -m "right merge, rename a->m" && + git tag R2 + ) +' + +test_expect_failure 'check nested conflicts' ' + ( + cd nested_conflicts && + + git clean -f && + git checkout L2^0 && + + # Merge must fail; there is a conflict + test_must_fail git -c merge.conflictstyle=diff3 merge -s recursive R2^0 && + + # Make sure the index has the right number of entries + git ls-files -s >out && + test_line_count = 2 out && + git ls-files -u >out && + test_line_count = 2 out && + # Ensure we have the correct number of untracked files + git ls-files -o >out && + test_line_count = 1 out && + + # Create a and b from virtual merge base X + git cat-file -p master:a >base && + git cat-file -p L1:a >ours && + git cat-file -p R1:a >theirs && + test_must_fail git merge-file --diff3 \ + -L "Temporary merge branch 1" \ + -L "merged common ancestors" \ + -L "Temporary merge branch 2" \ + ours \ + base \ + theirs && + sed -e "s/^\([<|=>]\)/\1\1/" ours >vmb_a && + + git cat-file -p master:b >base && + git cat-file -p L1:b >ours && + git cat-file -p R1:b >theirs && + test_must_fail git merge-file --diff3 \ + -L "Temporary merge branch 1" \ + -L "merged common ancestors" \ + -L "Temporary merge branch 2" \ + ours \ + base \ + theirs && + sed -e "s/^\([<|=>]\)/\1\1/" ours >vmb_b && + + # Compare :2:m to expected values + git cat-file -p L2:m >ours && + git cat-file -p R2:b >theirs && + test_must_fail git merge-file --diff3 \ + -L "HEAD:m" \ + -L "merged common ancestors:b" \ + -L "R2^0:b" \ + ours \ + vmb_b \ + theirs && + sed -e "s/^\([<|=>]\)/\1\1/" ours >m_stage_2 && + git cat-file -p :2:m >actual && + test_cmp m_stage_2 actual && + + # Compare :3:m to expected values + git cat-file -p L2:a >ours && + git cat-file -p R2:m >theirs && + test_must_fail git merge-file --diff3 \ + -L "HEAD:a" \ + -L "merged common ancestors:a" \ + -L "R2^0:m" \ + ours \ + vmb_a \ + theirs && + sed -e "s/^\([<|=>]\)/\1\1/" ours >m_stage_3 && + git cat-file -p :3:m >actual && + test_cmp m_stage_3 actual && + + # Compare m to expected contents + >empty && + cp -a m_stage_2 expected_final_m && + test_must_fail git merge-file --diff3 \ + -L "HEAD" \ + -L "merged common ancestors" \ + -L "R2^0" \ + expected_final_m \ + empty \ + m_stage_3 && + test_cmp expected_final_m m + ) +' + test_done diff --git a/t/t6042-merge-rename-corner-cases.sh b/t/t6042-merge-rename-corner-cases.sh index b6fed2cb9a..23c3b6dffa 100755 --- a/t/t6042-merge-rename-corner-cases.sh +++ b/t/t6042-merge-rename-corner-cases.sh @@ -1099,4 +1099,122 @@ test_conflicts_with_adds_and_renames rename add failure test_conflicts_with_adds_and_renames add rename failure test_conflicts_with_adds_and_renames add add success +# Setup: +# L +# / \ +# master ? +# \ / +# R +# +# Where: +# master has two files, named 'one' and 'two'. +# branches L and R both modify 'one', in conflicting ways. +# branches L and R both modify 'two', in conflicting ways. +# branch L also renames 'one' to 'three'. +# branch R also renames 'two' to 'three'. +# +# So, we have four different conflicting files that all end up at path +# 'three'. +test_expect_success 'setup nested conflicts from rename/rename(2to1)' ' + test_create_repo nested_conflicts_from_rename_rename && + ( + cd nested_conflicts_from_rename_rename && + + # Create some related files now + for i in $(test_seq 1 10) + do + echo Random base content line $i + done >file_v1 && + + cp file_v1 file_v2 && + cp file_v1 file_v3 && + cp file_v1 file_v4 && + cp file_v1 file_v5 && + cp file_v1 file_v6 && + + echo one >>file_v1 && + echo uno >>file_v2 && + echo eins >>file_v3 && + + echo two >>file_v4 && + echo dos >>file_v5 && + echo zwei >>file_v6 && + + # Setup original commit (or merge-base), consisting of + # files named "one" and "two". + mv file_v1 one && + mv file_v4 two && + git add one two && + test_tick && git commit -m english && + + git branch L && + git branch R && + + # Handle the left side + git checkout L && + git mv one three && + mv -f file_v2 three && + mv -f file_v5 two && + git add two three && + test_tick && git commit -m spanish && + + # Handle the right side + git checkout R && + git mv two three && + mv -f file_v3 one && + mv -f file_v6 three && + git add one three && + test_tick && git commit -m german + ) +' + +test_expect_failure 'check nested conflicts from rename/rename(2to1)' ' + ( + cd nested_conflicts_from_rename_rename && + + git checkout L^0 && + + # Merge must fail; there is a conflict + test_must_fail git merge -s recursive R^0 && + + # Make sure the index has the right number of entries + git ls-files -s >out && + test_line_count = 2 out && + git ls-files -u >out && + test_line_count = 2 out && + # Ensure we have the correct number of untracked files + git ls-files -o >out && + test_line_count = 1 out && + + # Compare :2:three to expected values + git cat-file -p master:one >base && + git cat-file -p L:three >ours && + git cat-file -p R:one >theirs && + test_must_fail git merge-file \ + -L "HEAD:three" -L "" -L "R^0:one" \ + ours base theirs && + sed -e "s/^\([<=>]\)/\1\1/" ours >L-three && + git cat-file -p :2:three >expect && + test_cmp expect L-three && + + # Compare :2:three to expected values + git cat-file -p master:two >base && + git cat-file -p L:two >ours && + git cat-file -p R:three >theirs && + test_must_fail git merge-file \ + -L "HEAD:two" -L "" -L "R^0:three" \ + ours base theirs && + sed -e "s/^\([<=>]\)/\1\1/" ours >R-three && + git cat-file -p :3:three >expect && + test_cmp expect R-three && + + # Compare three to expected contents + >empty && + test_must_fail git merge-file \ + -L "HEAD" -L "" -L "R^0" \ + L-three empty R-three && + test_cmp three L-three + ) +' + test_done |