t/t2024-checkout-dwim.sh

   1 #!/bin/sh
   2
   3 test_description='checkout <branch>
   4
   5 Ensures that checkout on an unborn branch does what the user expects'
   6
   7 . ./test-lib.sh
   8
   9 # Is the current branch "refs/heads/$1"?
  10 test_branch () {
  11         printf "%s\n" "refs/heads/$1" >expect.HEAD &&
  12         git symbolic-ref HEAD >actual.HEAD &&
  13         test_cmp expect.HEAD actual.HEAD
  14 }
  15
  16 # Is branch "refs/heads/$1" set to pull from "$2/$3"?
  17 test_branch_upstream () {
  18         printf "%s\n" "$2" "refs/heads/$3" >expect.upstream &&
  19         {
  20                 git config "branch.$1.remote" &&
  21                 git config "branch.$1.merge"
  22         } >actual.upstream &&
  23         test_cmp expect.upstream actual.upstream
  24 }
  25
  26 test_expect_success 'setup' '
  27         test_commit my_master &&
  28         git init repo_a &&
  29         (
  30                 cd repo_a &&
  31                 test_commit a_master &&
  32                 git checkout -b foo &&
  33                 test_commit a_foo &&
  34                 git checkout -b bar &&
  35                 test_commit a_bar
  36         ) &&
  37         git init repo_b &&
  38         (
  39                 cd repo_b &&
  40                 test_commit b_master &&
  41                 git checkout -b foo &&
  42                 test_commit b_foo &&
  43                 git checkout -b baz &&
  44                 test_commit b_baz
  45         ) &&
  46         git remote add repo_a repo_a &&
  47         git remote add repo_b repo_b &&
  48         git config remote.repo_b.fetch \
  49                 "+refs/heads/*:refs/remotes/other_b/*" &&
  50         git fetch --all
  51 '
  52
  53 test_expect_success 'checkout of non-existing branch fails' '
  54         git checkout -B master &&
  55         test_might_fail git branch -D xyzzy &&
  56
  57         test_must_fail git checkout xyzzy &&
  58         test_must_fail git rev-parse --verify refs/heads/xyzzy &&
  59         test_branch master
  60 '
  61
  62 test_expect_success 'checkout of branch from multiple remotes fails #1' '
  63         git checkout -B master &&
  64         test_might_fail git branch -D foo &&
  65
  66         test_must_fail git checkout foo &&
  67         test_must_fail git rev-parse --verify refs/heads/foo &&
  68         test_branch master
  69 '
  70
  71 test_expect_success 'checkout of branch from a single remote succeeds #1' '
  72         git checkout -B master &&
  73         test_might_fail git branch -D bar &&
  74
  75         git checkout bar &&
  76         test_branch bar &&
  77         test_cmp_rev remotes/repo_a/bar HEAD &&
  78         test_branch_upstream bar repo_a bar
  79 '
  80
  81 test_expect_success 'checkout of branch from a single remote succeeds #2' '
  82         git checkout -B master &&
  83         test_might_fail git branch -D baz &&
  84
  85         git checkout baz &&
  86         test_branch baz &&
  87         test_cmp_rev remotes/other_b/baz HEAD &&
  88         test_branch_upstream baz repo_b baz
  89 '
  90
  91 test_expect_success '--no-guess suppresses branch auto-vivification' '
  92         git checkout -B master &&
  93         test_might_fail git branch -D bar &&
  94
  95         test_must_fail git checkout --no-guess bar &&
  96         test_must_fail git rev-parse --verify refs/heads/bar &&
  97         test_branch master
  98 '
  99
 100 test_expect_success 'setup more remotes with unconventional refspecs' '
 101         git checkout -B master &&
 102         git init repo_c &&
 103         (
 104                 cd repo_c &&
 105                 test_commit c_master &&
 106                 git checkout -b bar &&
 107                 test_commit c_bar &&
 108                 git checkout -b spam &&
 109                 test_commit c_spam
 110         ) &&
 111         git init repo_d &&
 112         (
 113                 cd repo_d &&
 114                 test_commit d_master &&
 115                 git checkout -b baz &&
 116                 test_commit d_baz &&
 117                 git checkout -b eggs &&
 118                 test_commit d_eggs
 119         ) &&
 120         git remote add repo_c repo_c &&
 121         git config remote.repo_c.fetch \
 122                 "+refs/heads/*:refs/remotes/extra_dir/repo_c/extra_dir/*" &&
 123         git remote add repo_d repo_d &&
 124         git config remote.repo_d.fetch \
 125                 "+refs/heads/*:refs/repo_d/*" &&
 126         git fetch --all
 127 '
 128
 129 test_expect_success 'checkout of branch from multiple remotes fails #2' '
 130         git checkout -B master &&
 131         test_might_fail git branch -D bar &&
 132
 133         test_must_fail git checkout bar &&
 134         test_must_fail git rev-parse --verify refs/heads/bar &&
 135         test_branch master
 136 '
 137
 138 test_expect_success 'checkout of branch from multiple remotes fails #3' '
 139         git checkout -B master &&
 140         test_might_fail git branch -D baz &&
 141
 142         test_must_fail git checkout baz &&
 143         test_must_fail git rev-parse --verify refs/heads/baz &&
 144         test_branch master
 145 '
 146
 147 test_expect_success 'checkout of branch from a single remote succeeds #3' '
 148         git checkout -B master &&
 149         test_might_fail git branch -D spam &&
 150
 151         git checkout spam &&
 152         test_branch spam &&
 153         test_cmp_rev refs/remotes/extra_dir/repo_c/extra_dir/spam HEAD &&
 154         test_branch_upstream spam repo_c spam
 155 '
 156
 157 test_expect_success 'checkout of branch from a single remote succeeds #4' '
 158         git checkout -B master &&
 159         test_might_fail git branch -D eggs &&
 160
 161         git checkout eggs &&
 162         test_branch eggs &&
 163         test_cmp_rev refs/repo_d/eggs HEAD &&
 164         test_branch_upstream eggs repo_d eggs
 165 '
 166
 167 test_expect_success 'checkout of branch with a file having the same name fails' '
 168         git checkout -B master &&
 169         test_might_fail git branch -D spam &&
 170
 171         >spam &&
 172         test_must_fail git checkout spam &&
 173         test_must_fail git rev-parse --verify refs/heads/spam &&
 174         test_branch master
 175 '
 176
 177 test_expect_success 'checkout <branch> -- succeeds, even if a file with the same name exists' '
 178         git checkout -B master &&
 179         test_might_fail git branch -D spam &&
 180
 181         >spam &&
 182         git checkout spam -- &&
 183         test_branch spam &&
 184         test_cmp_rev refs/remotes/extra_dir/repo_c/extra_dir/spam HEAD &&
 185         test_branch_upstream spam repo_c spam
 186 '
 187
 188 test_done