| 1 | #!/bin/sh |
| 2 | |
| 3 | test_description='rewrite diff on binary file' |
| 4 | |
| 5 | . ./test-lib.sh |
| 6 | |
| 7 | # We must be large enough to meet the MINIMUM_BREAK_SIZE |
| 8 | # requirement. |
| 9 | make_file() { |
| 10 | # common first line to help identify rewrite versus regular diff |
| 11 | printf "=\n" >file |
| 12 | for i in 1 2 3 4 5 6 7 8 9 10 |
| 13 | do |
| 14 | for j in 1 2 3 4 5 6 7 8 9 |
| 15 | do |
| 16 | for k in 1 2 3 4 5 |
| 17 | do |
| 18 | printf "$1\n" |
| 19 | done |
| 20 | done |
| 21 | done >>file |
| 22 | } |
| 23 | |
| 24 | test_expect_success 'create binary file with changes' ' |
| 25 | make_file "\\0" && |
| 26 | git add file && |
| 27 | make_file "\\01" |
| 28 | ' |
| 29 | |
| 30 | test_expect_success 'vanilla diff is binary' ' |
| 31 | git diff >diff && |
| 32 | test_grep "Binary files a/file and b/file differ" diff |
| 33 | ' |
| 34 | |
| 35 | test_expect_success 'rewrite diff is binary' ' |
| 36 | git diff -B >diff && |
| 37 | test_grep "dissimilarity index" diff && |
| 38 | test_grep "Binary files a/file and b/file differ" diff |
| 39 | ' |
| 40 | |
| 41 | test_expect_success 'rewrite diff can show binary patch' ' |
| 42 | git diff -B --binary >diff && |
| 43 | test_grep "dissimilarity index" diff && |
| 44 | test_grep "GIT binary patch" diff |
| 45 | ' |
| 46 | |
| 47 | test_expect_success 'rewrite diff --numstat shows binary changes' ' |
| 48 | git diff -B --numstat --summary >diff && |
| 49 | test_grep -e "- - " diff && |
| 50 | test_grep " rewrite file" diff |
| 51 | ' |
| 52 | |
| 53 | test_expect_success 'diff --stat counts binary rewrite as 0 lines' ' |
| 54 | git diff -B --stat --summary >diff && |
| 55 | test_grep "Bin" diff && |
| 56 | test_grep "0 insertions.*0 deletions" diff && |
| 57 | test_grep " rewrite file" diff |
| 58 | ' |
| 59 | |
| 60 | test_expect_success 'setup textconv' ' |
| 61 | write_script dump <<-\EOF && |
| 62 | test-tool hexdump <"$1" |
| 63 | EOF |
| 64 | echo file diff=foo >.gitattributes && |
| 65 | git config diff.foo.textconv "\"$(pwd)\""/dump |
| 66 | ' |
| 67 | |
| 68 | test_expect_success 'rewrite diff respects textconv' ' |
| 69 | git diff -B >diff && |
| 70 | test_grep "dissimilarity index" diff && |
| 71 | test_grep "^-3d 0a 00" diff && |
| 72 | test_grep "^+3d 0a 01" diff |
| 73 | ' |
| 74 | |
| 75 | test_done |