diff options
Diffstat (limited to 't/t4031-diff-rewrite-binary.sh')
-rwxr-xr-x | t/t4031-diff-rewrite-binary.sh | 67 |
1 files changed, 67 insertions, 0 deletions
diff --git a/t/t4031-diff-rewrite-binary.sh b/t/t4031-diff-rewrite-binary.sh new file mode 100755 index 0000000000..7e7b307a24 --- /dev/null +++ b/t/t4031-diff-rewrite-binary.sh @@ -0,0 +1,67 @@ +#!/bin/sh + +test_description='rewrite diff on binary file' + +. ./test-lib.sh + +# We must be large enough to meet the MINIMUM_BREAK_SIZE +# requirement. +make_file() { + # common first line to help identify rewrite versus regular diff + printf "=\n" >file + for i in 1 2 3 4 5 6 7 8 9 10 + do + for j in 1 2 3 4 5 6 7 8 9 + do + for k in 1 2 3 4 5 + do + printf "$1\n" + done + done + done >>file +} + +test_expect_success 'create binary file with changes' ' + make_file "\\0" && + git add file && + make_file "\\01" +' + +test_expect_success 'vanilla diff is binary' ' + git diff >diff && + grep "Binary files a/file and b/file differ" diff +' + +test_expect_success 'rewrite diff is binary' ' + git diff -B >diff && + grep "dissimilarity index" diff && + grep "Binary files a/file and b/file differ" diff +' + +test_expect_success 'rewrite diff can show binary patch' ' + git diff -B --binary >diff && + grep "dissimilarity index" diff && + grep "GIT binary patch" diff +' + +{ + echo "#!$SHELL_PATH" + cat <<'EOF' +perl -e '$/ = undef; $_ = <>; s/./ord($&)/ge; print $_' < "$1" +EOF +} >dump +chmod +x dump + +test_expect_success 'setup textconv' ' + echo file diff=foo >.gitattributes && + git config diff.foo.textconv "\"$(pwd)\""/dump +' + +test_expect_success 'rewrite diff respects textconv' ' + git diff -B >diff && + grep "dissimilarity index" diff && + grep "^-61" diff && + grep "^-0" diff +' + +test_done |