untracked-cache: be defensive about missing NULs in index

diff --git a/t/t3206-range-diff.sh b/t/t3206-range-diff.sh
index e497c1358f8b2da6960d3d73db3cc75f9f7df85c..048feaf6ddf845279b30b7f1ebb7056c60e01c6d 100755 (executable)
--- a/t/t3206-range-diff.sh
+++ b/t/t3206-range-diff.sh
@@ -248,18 +248,24 @@ test_expect_success 'dual-coloring' '
 for prev in topic master..topic
 do
        test_expect_success "format-patch --range-diff=$prev" '
-               git format-patch --stdout --cover-letter --range-diff=$prev \
+               git format-patch --cover-letter --range-diff=$prev \
                        master..unmodified >actual &&
-               grep "= 1: .* s/5/A" actual &&
-               grep "= 2: .* s/4/A" actual &&
-               grep "= 3: .* s/11/B" actual &&
-               grep "= 4: .* s/12/B" actual
+               test_when_finished "rm 000?-*" &&
+               test_line_count = 5 actual &&
+               test_i18ngrep "^Range-diff:$" 0000-* &&
+               grep "= 1: .* s/5/A" 0000-* &&
+               grep "= 2: .* s/4/A" 0000-* &&
+               grep "= 3: .* s/11/B" 0000-* &&
+               grep "= 4: .* s/12/B" 0000-*
        '
 done
 
 test_expect_success 'format-patch --range-diff as commentary' '
-       git format-patch --stdout --range-diff=HEAD~1 HEAD~1 >actual &&
-       test_i18ngrep "^Range-diff:$" actual
+       git format-patch --range-diff=HEAD~1 HEAD~1 >actual &&
+       test_when_finished "rm 0001-*" &&
+       test_line_count = 1 actual &&
+       test_i18ngrep "^Range-diff:$" 0001-* &&
+       grep "> 1: .* new message" 0001-*
 '
 
 test_done