1#!/bin/sh
2
3test_description='merge simplification'
4
5. ./test-lib.sh
6
7note () {
8 git tag "$1"
9}
10
11unnote () {
12 git name-rev --tags --stdin | sed -e "s|$_x40 (tags/\([^)]*\)) |\1 |g"
13}
14
15test_expect_success setup '
16 echo "Hi there" >file &&
17 git add file &&
18 test_tick && git commit -m "Initial file" &&
19 note A &&
20
21 git branch other-branch &&
22
23 echo "Hello" >file &&
24 git add file &&
25 test_tick && git commit -m "Modified file" &&
26 note B &&
27
28 git checkout other-branch &&
29
30 echo "Hello" >file &&
31 git add file &&
32 test_tick && git commit -m "Modified the file identically" &&
33 note C &&
34
35 echo "This is a stupid example" >another-file &&
36 git add another-file &&
37 test_tick && git commit -m "Add another file" &&
38 note D &&
39
40 test_tick && git merge -m "merge" master &&
41 note E &&
42
43 echo "Yet another" >elif &&
44 git add elif &&
45 test_tick && git commit -m "Irrelevant change" &&
46 note F &&
47
48 git checkout master &&
49 echo "Yet another" >elif &&
50 git add elif &&
51 test_tick && git commit -m "Another irrelevant change" &&
52 note G &&
53
54 test_tick && git merge -m "merge" other-branch &&
55 note H &&
56
57 echo "Final change" >file &&
58 test_tick && git commit -a -m "Final change" &&
59 note I &&
60
61 git symbolic-ref HEAD refs/heads/unrelated &&
62 git rm -f "*" &&
63 echo "Unrelated branch" >side &&
64 git add side &&
65 test_tick && git commit -m "Side root" &&
66 note J &&
67
68 git checkout master &&
69 test_tick && git merge -m "Coolest" unrelated &&
70 note K &&
71
72 echo "Immaterial" >elif &&
73 git add elif &&
74 test_tick && git commit -m "Last" &&
75 note L
76'
77
78FMT='tformat:%P %H | %s'
79
80check_outcome () {
81 outcome=$1
82 shift
83 for c in $1
84 do
85 echo "$c"
86 done >expect &&
87 shift &&
88 param="$*" &&
89 test_expect_$outcome "log $param" '
90 git log --pretty="$FMT" --parents $param |
91 unnote >actual &&
92 sed -e "s/^.* \([^ ]*\) .*/\1/" >check <actual &&
93 test_cmp expect check || {
94 cat actual
95 false
96 }
97 '
98}
99
100check_result () {
101 check_outcome success "$@"
102}
103
104check_result 'L K J I H G F E D C B A' --full-history
105check_result 'K I H E C B A' --full-history -- file
106check_result 'K I H E C B A' --full-history --topo-order -- file
107check_result 'K I H E C B A' --full-history --date-order -- file
108check_outcome failure 'I E C B A' --simplify-merges -- file
109check_result 'I B A' -- file
110check_result 'I B A' --topo-order -- file
111check_result 'H' --first-parent -- another-file
112
113test_done