fmt-merge-msg: minor refactor of fmt_merge_msg()

diff --git a/t/t7201-co.sh b/t/t7201-co.sh
index d20ed61b481539b25c054c49bd82aa6fb9b3a981..1337fa5a2209d489c43f0a34c95a89053d3fd8bf 100755 (executable)
--- a/t/t7201-co.sh
+++ b/t/t7201-co.sh
@@ -11,10 +11,12 @@ Test switching across them.
   ! [master] Initial A one, A two
    * [renamer] Renamer R one->uno, M two
     ! [side] Side M one, D two, A three
-  ---
-    + [side] Side M one, D two, A three
-   *  [renamer] Renamer R one->uno, M two
-  +*+ [master] Initial A one, A two
+     ! [simple] Simple D one, M two
+  ----
+     + [simple] Simple D one, M two
+    +  [side] Side M one, D two, A three
+   *   [renamer] Renamer R one->uno, M two
+  +*++ [master] Initial A one, A two
 
 '
 
@@ -52,6 +54,11 @@ test_expect_success setup '
        git update-index --add --remove one two three &&
        git commit -m "Side M one, D two, A three" &&
 
+       git checkout -b simple master &&
+       rm -f one &&
+       fill a c e > two &&
+       git commit -a -m "Simple D one, M two" &&
+
        git checkout master
 '
 
@@ -166,6 +173,56 @@ test_expect_success 'checkout -m with merge conflict' '
        ! test -s current
 '
 
+test_expect_success 'format of merge conflict from checkout -m' '
+
+       git checkout -f master && git clean -f &&
+
+       fill b d > two &&
+       git checkout -m simple &&
+
+       git ls-files >current &&
+       fill same two two two >expect &&
+       test_cmp current expect &&
+
+       cat <<-EOF >expect &&
+       <<<<<<< simple
+       a
+       c
+       e
+       =======
+       b
+       d
+       >>>>>>> local
+       EOF
+       test_cmp two expect
+'
+
+test_expect_success 'checkout --merge --conflict=diff3 <branch>' '
+
+       git checkout -f master && git reset --hard && git clean -f &&
+
+       fill b d > two &&
+       git checkout --merge --conflict=diff3 simple &&
+
+       cat <<-EOF >expect &&
+       <<<<<<< simple
+       a
+       c
+       e
+       ||||||| master
+       a
+       b
+       c
+       d
+       e
+       =======
+       b
+       d
+       >>>>>>> local
+       EOF
+       test_cmp two expect
+'
+
 test_expect_success 'checkout to detach HEAD (with advice declined)' '
 
        git config advice.detachedHead false &&
@@ -481,7 +538,7 @@ test_expect_success 'checkout with --merge, in diff3 -m style' '
        (
                echo "<<<<<<< ours"
                echo ourside
-               echo "|||||||"
+               echo "||||||| base"
                echo original
                echo "======="
                echo theirside
@@ -525,7 +582,7 @@ test_expect_success 'checkout --conflict=diff3' '
        (
                echo "<<<<<<< ours"
                echo ourside
-               echo "|||||||"
+               echo "||||||| base"
                echo original
                echo "======="
                echo theirside