New test case: Criss-cross merge

Signed-off-by: Fredrik Kuivinen <freku045@student.liu.se>
Signed-off-by: Junio C Hamano <junkio@cox.net>

t/t6021-merge-criss-cross.sh

@@ -0,0 +1,92 @@
+#!/bin/sh
+#
+# Copyright (c) 2005 Fredrik Kuivinen
+#
+
+# See http://marc.theaimsgroup.com/?l=git&m=111463358500362&w=2 for a
+# nice decription of what this is about.
+
+
+test_description='Test criss-cross merge'
+. ./test-lib.sh
+
+test_expect_success 'prepare repository' \
+'echo "1
+2
+3
+4
+5
+6
+7
+8
+9" > file &&
+git add file && 
+git commit -m "Initial commit" file &&
+git branch A &&
+git branch B &&
+git checkout A &&
+echo "1
+2
+3
+4
+5
+6
+7
+8 changed in B8, branch A
+9" > file &&
+git commit -m "B8" file &&
+git checkout B &&
+echo "1
+2
+3 changed in C3, branch B
+4
+5
+6
+7
+8
+9
+" > file &&
+git commit -m "C3" file &&
+git branch C3 &&
+git merge "pre E3 merge" B A &&
+echo "1
+2
+3 changed in E3, branch B. New file size
+4
+5
+6
+7
+8 changed in B8, branch A
+9
+" > file &&
+git commit -m "E3" file &&
+git checkout A &&
+git merge "pre D8 merge" A C3 &&
+echo "1
+2
+3 changed in C3, branch B
+4
+5
+6
+7
+8 changed in D8, branch A. New file size 2
+9" > file &&
+git commit -m D8 file'
+
+test_expect_success 'Criss-cross merge' 'git merge "final merge" A B'
+
+cat > file-expect <<EOF
+1
+2
+3 changed in E3, branch B. New file size
+4
+5
+6
+7
+8 changed in D8, branch A. New file size 2
+9
+EOF
+
+test_expect_success 'Criss-cross merge result' 'cmp file file-expect'
+
+test_done