revision: implement sparse algorithm

diff --git a/t/t8003-blame-corner-cases.sh b/t/t8003-blame-corner-cases.sh
index 661f9d430d28834b8a006fa0bcc958f52c95258b..c92a47b6d5b11ab537ce9892ca21feddc19db7d9 100755 (executable)
--- a/t/t8003-blame-corner-cases.sh
+++ b/t/t8003-blame-corner-cases.sh
@@ -216,14 +216,18 @@ test_expect_success 'blame -L with invalid start' '
 '
 
 test_expect_success 'blame -L with invalid end' '
-       test_must_fail git blame -L1,5 tres 2>errors &&
-       test_i18ngrep "has only 2 lines" errors
+       git blame -L1,5 tres >out &&
+       test_line_count = 2 out
 '
 
 test_expect_success 'blame parses <end> part of -L' '
        git blame -L1,1 tres >out &&
-       cat out &&
-       test $(wc -l < out) -eq 1
+       test_line_count = 1 out
+'
+
+test_expect_success 'blame -Ln,-(n+1)' '
+       git blame -L3,-4 nine_lines >out &&
+       test_line_count = 3 out
 '
 
 test_expect_success 'indent of line numbers, nine lines' '