1#!/bin/sh
2
3test_description='checkout can switch to last branch'
4
5. ./test-lib.sh
6
7test_expect_success 'setup' '
8 echo hello >world &&
9 git add world &&
10 git commit -m initial &&
11 git branch other &&
12 echo "hello again" >>world &&
13 git add world &&
14 git commit -m second
15'
16
17test_expect_success '"checkout -" does not work initially' '
18 test_must_fail git checkout -
19'
20
21test_expect_success 'first branch switch' '
22 git checkout other
23'
24
25test_expect_success '"checkout -" switches back' '
26 git checkout - &&
27 test "z$(git symbolic-ref HEAD)" = "zrefs/heads/master"
28'
29
30test_expect_success '"checkout -" switches forth' '
31 git checkout - &&
32 test "z$(git symbolic-ref HEAD)" = "zrefs/heads/other"
33'
34
35test_expect_success 'detach HEAD' '
36 git checkout $(git rev-parse HEAD)
37'
38
39test_expect_success '"checkout -" attaches again' '
40 git checkout - &&
41 test "z$(git symbolic-ref HEAD)" = "zrefs/heads/other"
42'
43
44test_expect_success '"checkout -" detaches again' '
45 git checkout - &&
46 test "z$(git rev-parse HEAD)" = "z$(git rev-parse other)" &&
47 test_must_fail git symbolic-ref HEAD
48'
49
50test_expect_success 'more switches' '
51 for i in 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1
52 do
53 git checkout -b branch$i
54 done
55'
56
57more_switches () {
58 for i in 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1
59 do
60 git checkout branch$i
61 done
62}
63
64test_expect_success 'switch to the last' '
65 more_switches &&
66 git checkout @{-1} &&
67 test "z$(git symbolic-ref HEAD)" = "zrefs/heads/branch2"
68'
69
70test_expect_success 'switch to second from the last' '
71 more_switches &&
72 git checkout @{-2} &&
73 test "z$(git symbolic-ref HEAD)" = "zrefs/heads/branch3"
74'
75
76test_expect_success 'switch to third from the last' '
77 more_switches &&
78 git checkout @{-3} &&
79 test "z$(git symbolic-ref HEAD)" = "zrefs/heads/branch4"
80'
81
82test_expect_success 'switch to fourth from the last' '
83 more_switches &&
84 git checkout @{-4} &&
85 test "z$(git symbolic-ref HEAD)" = "zrefs/heads/branch5"
86'
87
88test_expect_success 'switch to twelfth from the last' '
89 more_switches &&
90 git checkout @{-12} &&
91 test "z$(git symbolic-ref HEAD)" = "zrefs/heads/branch13"
92'
93
94test_done