diff options
| -rwxr-xr-x | t/t9011-svn-da.sh | 35 | ||||
| -rw-r--r-- | vcs-svn/svndiff.c | 2 |
2 files changed, 37 insertions, 0 deletions
diff --git a/t/t9011-svn-da.sh b/t/t9011-svn-da.sh index be1234094f..90b6058ab6 100755 --- a/t/t9011-svn-da.sh +++ b/t/t9011-svn-da.sh @@ -86,4 +86,39 @@ test_expect_success 'nonempty (but unused) preimage view' ' test_cmp empty actual ' +test_expect_success 'preimage view: right endpoint cannot backtrack' ' + printf "SVNQ%b%b" "Q\003QQQ" "Q\002QQQ" | + q_to_nul >clear.backtrack && + test_must_fail test-svn-fe -d preimage clear.backtrack 14 +' + +test_expect_success 'preimage view: left endpoint can advance' ' + printf "SVNQ%b%b" "Q\003QQQ" "\001\002QQQ" | + q_to_nul >clear.preshrink && + printf "SVNQ%b%b" "Q\003QQQ" "\001\001QQQ" | + q_to_nul >clear.shrinkbacktrack && + test-svn-fe -d preimage clear.preshrink 14 >actual && + test_must_fail test-svn-fe -d preimage clear.shrinkbacktrack 14 && + test_cmp empty actual +' + +test_expect_success 'preimage view: offsets compared by value' ' + printf "SVNQ%b%b" "\001\001QQQ" "\0200Q\003QQQ" | + q_to_nul >clear.noisybacktrack && + printf "SVNQ%b%b" "\001\001QQQ" "\0200\001\002QQQ" | + q_to_nul >clear.noisyadvance && + test_must_fail test-svn-fe -d preimage clear.noisybacktrack 15 && + test-svn-fe -d preimage clear.noisyadvance 15 && + test_cmp empty actual +' + +test_expect_success 'preimage view: reject truncated preimage' ' + printf "SVNQ%b" "\010QQQQ" | q_to_nul >clear.lateemptyread && + printf "SVNQ%b" "\010\001QQQ" | q_to_nul >clear.latenonemptyread && + printf "SVNQ%b" "\001\010QQQ" | q_to_nul >clear.longread && + test_must_fail test-svn-fe -d preimage clear.lateemptyread 9 && + test_must_fail test-svn-fe -d preimage clear.latenonemptyread 9 && + test_must_fail test-svn-fe -d preimage clear.longread 9 +' + test_done diff --git a/vcs-svn/svndiff.c b/vcs-svn/svndiff.c index 249efb6eed..b7c2c8bf53 100644 --- a/vcs-svn/svndiff.c +++ b/vcs-svn/svndiff.c @@ -4,6 +4,7 @@ */ #include "git-compat-util.h" +#include "sliding_window.h" #include "line_buffer.h" #include "svndiff.h" @@ -127,6 +128,7 @@ int svndiff0_apply(struct line_buffer *delta, off_t delta_len, if (read_offset(delta, &pre_off, &delta_len) || read_length(delta, &pre_len, &delta_len) || + move_window(preimage, pre_off, pre_len) || apply_one_window(delta, &delta_len)) return -1; } |