1#!/bin/sh
2#
3# Copyright (c) 2005 Junio C Hamano
4#
5
6test_description='Test rename detection in diff engine.
7
8'
9. ./test-lib.sh
10. "$TEST_DIRECTORY"/diff-lib.sh
11
12echo >path0 'Line 1
13Line 2
14Line 3
15Line 4
16Line 5
17Line 6
18Line 7
19Line 8
20Line 9
21Line 10
22line 11
23Line 12
24Line 13
25Line 14
26Line 15
27'
28
29test_expect_success \
30 'update-index --add a file.' \
31 'git update-index --add path0'
32
33test_expect_success \
34 'write that tree.' \
35 'tree=$(git write-tree) && echo $tree'
36
37sed -e 's/line/Line/' <path0 >path1
38rm -f path0
39test_expect_success \
40 'renamed and edited the file.' \
41 'git update-index --add --remove path0 path1'
42
43test_expect_success \
44 'git diff-index -p -M after rename and editing.' \
45 'git diff-index -p -M $tree >current'
46cat >expected <<\EOF
47diff --git a/path0 b/path1
48rename from path0
49rename to path1
50--- a/path0
51+++ b/path1
52@@ -8,7 +8,7 @@ Line 7
53 Line 8
54 Line 9
55 Line 10
56-line 11
57+Line 11
58 Line 12
59 Line 13
60 Line 14
61EOF
62
63test_expect_success \
64 'validate the output.' \
65 'compare_diff_patch current expected'
66
67test_expect_success 'favour same basenames over different ones' '
68 cp path1 another-path &&
69 git add another-path &&
70 git commit -m 1 &&
71 git rm path1 &&
72 mkdir subdir &&
73 git mv another-path subdir/path1 &&
74 git status | test_i18ngrep "renamed: .*path1 -> subdir/path1"'
75
76test_expect_success 'favour same basenames even with minor differences' '
77 git show HEAD:path1 | sed "s/15/16/" > subdir/path1 &&
78 git status | test_i18ngrep "renamed: .*path1 -> subdir/path1"'
79
80test_expect_success 'setup for many rename source candidates' '
81 git reset --hard &&
82 for i in 0 1 2 3 4 5 6 7 8 9;
83 do
84 for j in 0 1 2 3 4 5 6 7 8 9;
85 do
86 echo "$i$j" >"path$i$j"
87 done
88 done &&
89 git add "path??" &&
90 test_tick &&
91 git commit -m "hundred" &&
92 (cat path1; echo new) >new-path &&
93 echo old >>path1 &&
94 git add new-path path1 &&
95 git diff -l 4 -C -C --cached --name-status >actual 2>actual.err &&
96 sed -e "s/^\([CM]\)[0-9]* /\1 /" actual >actual.munged &&
97 cat >expect <<-EOF &&
98 C path1 new-path
99 M path1
100 EOF
101 test_cmp expect actual.munged &&
102 grep warning actual.err
103'
104
105test_done