t/t2017-checkout-orphan.sh

   1 #!/bin/sh
   2 #
   3 # Copyright (c) 2010 Erick Mattos
   4 #
   5
   6 test_description='git checkout --orphan
   7
   8 Main Tests for --orphan functionality.'
   9
  10 GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME=main
  11 export GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME
  12
  13 TEST_PASSES_SANITIZE_LEAK=true
  14 . ./test-lib.sh
  15
  16 TEST_FILE=foo
  17
  18 test_expect_success 'Setup' '
  19         echo "Initial" >"$TEST_FILE" &&
  20         git add "$TEST_FILE" &&
  21         git commit -m "First Commit" &&
  22         test_tick &&
  23         echo "State 1" >>"$TEST_FILE" &&
  24         git add "$TEST_FILE" &&
  25         test_tick &&
  26         git commit -m "Second Commit"
  27 '
  28
  29 test_expect_success '--orphan creates a new orphan branch from HEAD' '
  30         git checkout --orphan alpha &&
  31         test_must_fail git rev-parse --verify HEAD &&
  32         test "refs/heads/alpha" = "$(git symbolic-ref HEAD)" &&
  33         test_tick &&
  34         git commit -m "Third Commit" &&
  35         test_must_fail git rev-parse --verify HEAD^ &&
  36         git diff-tree --quiet main alpha
  37 '
  38
  39 test_expect_success '--orphan creates a new orphan branch from <start_point>' '
  40         git checkout main &&
  41         git checkout --orphan beta main^ &&
  42         test_must_fail git rev-parse --verify HEAD &&
  43         test "refs/heads/beta" = "$(git symbolic-ref HEAD)" &&
  44         test_tick &&
  45         git commit -m "Fourth Commit" &&
  46         test_must_fail git rev-parse --verify HEAD^ &&
  47         git diff-tree --quiet main^ beta
  48 '
  49
  50 test_expect_success '--orphan must be rejected with -b' '
  51         git checkout main &&
  52         test_must_fail git checkout --orphan new -b newer &&
  53         test refs/heads/main = "$(git symbolic-ref HEAD)"
  54 '
  55
  56 test_expect_success '--orphan must be rejected with -t' '
  57         git checkout main &&
  58         test_must_fail git checkout --orphan new -t main &&
  59         test refs/heads/main = "$(git symbolic-ref HEAD)"
  60 '
  61
  62 test_expect_success '--orphan ignores branch.autosetupmerge' '
  63         git checkout main &&
  64         git config branch.autosetupmerge always &&
  65         git checkout --orphan gamma &&
  66         test_cmp_config "" --default "" branch.gamma.merge &&
  67         test refs/heads/gamma = "$(git symbolic-ref HEAD)" &&
  68         test_must_fail git rev-parse --verify HEAD^ &&
  69         git checkout main &&
  70         git config branch.autosetupmerge inherit &&
  71         git checkout --orphan eta &&
  72         test_cmp_config "" --default "" branch.eta.merge &&
  73         test_cmp_config "" --default "" branch.eta.remote &&
  74         echo refs/heads/eta >expected &&
  75         git symbolic-ref HEAD >actual &&
  76         test_cmp expected actual &&
  77         test_must_fail git rev-parse --verify HEAD^
  78 '
  79
  80 test_expect_success '--orphan makes reflog by default' '
  81         git checkout main &&
  82         git config --unset core.logAllRefUpdates &&
  83         git checkout --orphan delta &&
  84         test_must_fail git rev-parse --verify delta@{0} &&
  85         git commit -m Delta &&
  86         git rev-parse --verify delta@{0}
  87 '
  88
  89 test_expect_success '--orphan does not make reflog when core.logAllRefUpdates = false' '
  90         git checkout main &&
  91         git config core.logAllRefUpdates false &&
  92         git checkout --orphan epsilon &&
  93         test_must_fail git rev-parse --verify epsilon@{0} &&
  94         git commit -m Epsilon &&
  95         test_must_fail git rev-parse --verify epsilon@{0}
  96 '
  97
  98 test_expect_success '--orphan with -l makes reflog when core.logAllRefUpdates = false' '
  99         git checkout main &&
 100         git checkout -l --orphan zeta &&
 101         test_must_fail git rev-parse --verify zeta@{0} &&
 102         git commit -m Zeta &&
 103         git rev-parse --verify zeta@{0}
 104 '
 105
 106 test_expect_success 'giving up --orphan not committed when -l and core.logAllRefUpdates = false deletes reflog' '
 107         git checkout main &&
 108         git checkout -l --orphan eta &&
 109         test_must_fail git rev-parse --verify eta@{0} &&
 110         git checkout main &&
 111         test_must_fail git rev-parse --verify eta@{0}
 112 '
 113
 114 test_expect_success '--orphan is rejected with an existing name' '
 115         git checkout main &&
 116         test_must_fail git checkout --orphan main &&
 117         test refs/heads/main = "$(git symbolic-ref HEAD)"
 118 '
 119
 120 test_expect_success '--orphan refuses to switch if a merge is needed' '
 121         git checkout main &&
 122         git reset --hard &&
 123         echo local >>"$TEST_FILE" &&
 124         cat "$TEST_FILE" >"$TEST_FILE.saved" &&
 125         test_must_fail git checkout --orphan new main^ &&
 126         test refs/heads/main = "$(git symbolic-ref HEAD)" &&
 127         test_cmp "$TEST_FILE" "$TEST_FILE.saved" &&
 128         git diff-index --quiet --cached HEAD &&
 129         git reset --hard
 130 '
 131
 132 test_expect_success 'cannot --detach on an unborn branch' '
 133         git checkout main &&
 134         git checkout --orphan new &&
 135         test_must_fail git checkout --detach
 136 '
 137
 138 test_done