diff options
Diffstat (limited to 't/t6427-diff3-conflict-markers.sh')
| -rwxr-xr-x | t/t6427-diff3-conflict-markers.sh | 304 |
1 files changed, 304 insertions, 0 deletions
diff --git a/t/t6427-diff3-conflict-markers.sh b/t/t6427-diff3-conflict-markers.sh new file mode 100755 index 0000000..dd5fe6a --- /dev/null +++ b/t/t6427-diff3-conflict-markers.sh @@ -0,0 +1,304 @@ +#!/bin/sh + +test_description='recursive merge diff3 style conflict markers' + +GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME=main +export GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME + +. ./test-lib.sh + +# Setup: +# L1 +# \ +# ? +# / +# R1 +# +# Where: +# L1 and R1 both have a file named 'content' but have no common history +# + +test_expect_success 'setup no merge base' ' + git init no_merge_base && + ( + cd no_merge_base && + + git checkout -b L && + test_commit A content A && + + git checkout --orphan R && + test_commit B content B + ) +' + +test_expect_success 'check no merge base' ' + ( + cd no_merge_base && + + git checkout L^0 && + + test_must_fail git -c merge.conflictstyle=diff3 merge --allow-unrelated-histories -s recursive R^0 && + + grep "|||||| empty tree" content + ) +' + +# Setup: +# L1 +# / \ +# main ? +# \ / +# R1 +# +# Where: +# L1 and R1 have modified the same file ('content') in conflicting ways +# + +test_expect_success 'setup unique merge base' ' + git init unique_merge_base && + ( + cd unique_merge_base && + + test_commit base content "1 +2 +3 +4 +5 +" && + + git branch L && + git branch R && + + git checkout L && + test_commit L content "1 +2 +3 +4 +5 +7" && + + git checkout R && + git rm content && + test_commit R renamed "1 +2 +3 +4 +5 +six" + ) +' + +test_expect_success 'check unique merge base' ' + ( + cd unique_merge_base && + + git checkout L^0 && + MAIN=$(git rev-parse --short main) && + + test_must_fail git -c merge.conflictstyle=diff3 merge -s recursive R^0 && + + grep "|||||| $MAIN:content" renamed + ) +' + +# Setup: +# L1---L2--L3 +# / \ / \ +# main X1 ? +# \ / \ / +# R1---R2--R3 +# +# Where: +# commits L1 and R1 have modified the same file in non-conflicting ways +# X1 is an auto-generated merge-base used when merging L1 and R1 +# commits L2 and R2 are merges of R1 and L1 into L1 and R1, respectively +# commits L3 and R3 both modify 'content' in conflicting ways +# + +test_expect_success 'setup multiple merge bases' ' + git init multiple_merge_bases && + ( + cd multiple_merge_bases && + + test_commit initial content "1 +2 +3 +4 +5" && + + git branch L && + git branch R && + + # Create L1 + git checkout L && + test_commit L1 content "0 +1 +2 +3 +4 +5" && + + # Create R1 + git checkout R && + test_commit R1 content "1 +2 +3 +4 +5 +6" && + + # Create L2 + git checkout L && + git merge R1 && + + # Create R2 + git checkout R && + git merge L1 && + + # Create L3 + git checkout L && + test_commit L3 content "0 +1 +2 +3 +4 +5 +A" && + + # Create R3 + git checkout R && + git rm content && + test_commit R3 renamed "0 +2 +3 +4 +5 +six" + ) +' + +test_expect_success 'check multiple merge bases' ' + ( + cd multiple_merge_bases && + + git checkout L^0 && + + test_must_fail git -c merge.conflictstyle=diff3 merge -s recursive R^0 && + + grep "|||||| merged common ancestors:content" renamed + ) +' + +test_expect_success 'rebase --merge describes parent of commit being picked' ' + git init rebase && + ( + cd rebase && + test_commit base file && + test_commit main file && + git checkout -b side HEAD^ && + test_commit side file && + test_must_fail git -c merge.conflictstyle=diff3 rebase --merge main && + grep "||||||| parent of" file + ) +' + +test_expect_success 'rebase --apply describes fake ancestor base' ' + ( + cd rebase && + git rebase --abort && + test_must_fail git -c merge.conflictstyle=diff3 rebase --apply main && + grep "||||||| constructed merge base" file + ) +' + +test_setup_zdiff3 () { + git init zdiff3 && + ( + cd zdiff3 && + + test_write_lines 1 2 3 4 5 6 7 8 9 >basic && + test_write_lines 1 2 3 AA 4 5 BB 6 7 8 >middle-common && + test_write_lines 1 2 3 4 5 6 7 8 9 >interesting && + test_write_lines 1 2 3 4 5 6 7 8 9 >evil && + + git add basic middle-common interesting evil && + git commit -m base && + + git branch left && + git branch right && + + git checkout left && + test_write_lines 1 2 3 4 A B C D E 7 8 9 >basic && + test_write_lines 1 2 3 CC 4 5 DD 6 7 8 >middle-common && + test_write_lines 1 2 3 4 A B C D E F G H I J 7 8 9 >interesting && + test_write_lines 1 2 3 4 X A B C 7 8 9 >evil && + git add -u && + git commit -m letters && + + git checkout right && + test_write_lines 1 2 3 4 A X C Y E 7 8 9 >basic && + test_write_lines 1 2 3 EE 4 5 FF 6 7 8 >middle-common && + test_write_lines 1 2 3 4 A B C 5 6 G H I J 7 8 9 >interesting && + test_write_lines 1 2 3 4 Y A B C B C 7 8 9 >evil && + git add -u && + git commit -m permuted + ) +} + +test_expect_success 'check zdiff3 markers' ' + test_setup_zdiff3 && + ( + cd zdiff3 && + + git checkout left^0 && + + base=$(git rev-parse --short HEAD^1) && + test_must_fail git -c merge.conflictstyle=zdiff3 merge -s recursive right^0 && + + test_write_lines 1 2 3 4 A \ + "<<<<<<< HEAD" B C D \ + "||||||| $base" 5 6 \ + ======= X C Y \ + ">>>>>>> right^0" \ + E 7 8 9 \ + >expect && + test_cmp expect basic && + + test_write_lines 1 2 3 \ + "<<<<<<< HEAD" CC \ + "||||||| $base" AA \ + ======= EE \ + ">>>>>>> right^0" \ + 4 5 \ + "<<<<<<< HEAD" DD \ + "||||||| $base" BB \ + ======= FF \ + ">>>>>>> right^0" \ + 6 7 8 \ + >expect && + test_cmp expect middle-common && + + test_write_lines 1 2 3 4 A B C \ + "<<<<<<< HEAD" D E F \ + "||||||| $base" 5 6 \ + ======= 5 6 \ + ">>>>>>> right^0" \ + G H I J 7 8 9 \ + >expect && + test_cmp expect interesting && + + # Not passing this one yet; the common "B C" lines is still + # being left in the conflict blocks on the left and right + # sides. + test_write_lines 1 2 3 4 \ + "<<<<<<< HEAD" X A \ + "||||||| $base" 5 6 \ + ======= Y A B C \ + ">>>>>>> right^0" \ + B C 7 8 9 \ + >expect && + test_cmp expect evil + ) +' + +test_done |