diff: fix handling of binary rewrite diffs
[git] / t / t4031-diff-rewrite-binary.sh
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         for i in 1 2 3 4 5 6 7 8 9 10
11         do
12                 for j in 1 2 3 4 5 6 7 8 9
13                 do
14                         for k in 1 2 3 4 5
15                         do
16                                 printf "$1\n"
17                         done
18                 done
19         done >file
20 }
21
22 test_expect_success 'create binary file with changes' '
23         make_file "\\0" &&
24         git add file &&
25         make_file "\\01"
26 '
27
28 test_expect_success 'vanilla diff is binary' '
29         git diff >diff &&
30         grep "Binary files a/file and b/file differ" diff
31 '
32
33 test_expect_success 'rewrite diff is binary' '
34         git diff -B >diff &&
35         grep "dissimilarity index" diff &&
36         grep "Binary files a/file and b/file differ" diff
37 '
38
39 test_expect_success 'rewrite diff can show binary patch' '
40         git diff -B --binary >diff &&
41         grep "dissimilarity index" diff &&
42         grep "GIT binary patch" diff
43 '
44
45 test_done