t7003: make test repeatable

diff --git a/t/t4006-diff-mode.sh b/t/t4006-diff-mode.sh
index e2a67e9633811453c1b5c63d9936728e62e4585e..e72c6fd1b4fa294e3e52fe55ab68c672bfc57e15 100755 (executable)
--- a/t/t4006-diff-mode.sh
+++ b/t/t4006-diff-mode.sh
@@ -15,11 +15,21 @@ test_expect_success \
      tree=`git-write-tree` &&
      echo $tree'
 
-test_expect_success \
-    'chmod' \
-    'chmod +x rezrov &&
-     git-update-index rezrov &&
-     git-diff-index $tree >current'
+if [ "$(git config --get core.filemode)" = false ]
+then
+       say 'filemode disabled on the filesystem, using update-index --chmod=+x'
+       test_expect_success \
+           'git-update-index --chmod=+x' \
+           'git-update-index rezrov &&
+            git-update-index --chmod=+x rezrov &&
+            git-diff-index $tree >current'
+else
+       test_expect_success \
+           'chmod' \
+           'chmod +x rezrov &&
+            git-update-index rezrov &&
+            git-diff-index $tree >current'
+fi
 
 _x40='[0-9a-f][0-9a-f][0-9a-f][0-9a-f][0-9a-f]'
 _x40="$_x40$_x40$_x40$_x40$_x40$_x40$_x40$_x40"
@@ -28,7 +38,7 @@ echo ":100644 100755 X X M    rezrov" >expected
 
 test_expect_success \
     'verify' \
-    'diff -u expected check'
+    'git diff expected check'
 
 test_done