t/t2012-checkout-last.sh

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