#!/bin/sh

test_description='git merge

Testing octopus merge with more than 25 refs.'

. ./test-lib.sh

test_expect_success 'setup' '
        echo c0 > c0.c &&
        git add c0.c &&
        git commit -m c0 &&
        git tag c0 &&
        i=1 &&
        while test $i -le 30
        do
                git reset --hard c0 &&
                echo c$i > c$i.c &&
                git add c$i.c &&
                git commit -m c$i &&
                git tag c$i &&
                i=`expr $i + 1` || return 1
        done
'

test_expect_success 'merge c1 with c2, c3, c4, ... c29' '
        git reset --hard c1 &&
        i=2 &&
        refs="" &&
        while test $i -le 30
        do
                refs="$refs c$i"
                i=`expr $i + 1`
        done &&
        git merge $refs &&
        test "$(git rev-parse c1)" != "$(git rev-parse HEAD)" &&
        i=1 &&
        while test $i -le 30
        do
                test "$(git rev-parse c$i)" = "$(git rev-parse HEAD^$i)" &&
                i=`expr $i + 1` || return 1
        done &&
        git diff --exit-code &&
        i=1 &&
        while test $i -le 30
        do
                test -f c$i.c &&
                i=`expr $i + 1` || return 1
        done
'

cat >expected <<\EOF
Trying simple merge with c2
Trying simple merge with c3
Trying simple merge with c4
Merge made by the 'octopus' strategy.
 c2.c |    1 +
 c3.c |    1 +
 c4.c |    1 +
 3 files changed, 3 insertions(+)
 create mode 100644 c2.c
 create mode 100644 c3.c
 create mode 100644 c4.c
EOF

test_expect_success 'merge output uses pretty names' '
        git reset --hard c1 &&
        git merge c2 c3 c4 >actual &&
        test_cmp actual expected
'

cat >expected <<\EOF
Already up-to-date with c4
Trying simple merge with c5
Merge made by the 'octopus' strategy.
 c5.c |    1 +
 1 file changed, 1 insertion(+)
 create mode 100644 c5.c
EOF

test_expect_success 'merge up-to-date output uses pretty names' '
        git merge c4 c5 >actual &&
        test_cmp actual expected
'

cat >expected <<\EOF
Fast-forwarding to: c1
Trying simple merge with c2
Merge made by the 'octopus' strategy.
 c1.c |    1 +
 c2.c |    1 +
 2 files changed, 2 insertions(+)
 create mode 100644 c1.c
 create mode 100644 c2.c
EOF

test_expect_success 'merge fast-forward output uses pretty names' '
        git reset --hard c0 &&
        git merge c1 c2 >actual &&
        test_cmp actual expected
'

test_done