git/t/t2017-checkout-orphan.sh

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#!/bin/sh
#
# Copyright (c) 2010 Erick Mattos
#
test_description='git checkout --orphan
Main Tests for --orphan functionality.'
GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME=main
tests: mark tests relying on the current default for `init.defaultBranch` In addition to the manual adjustment to let the `linux-gcc` CI job run the test suite with `master` and then with `main`, this patch makes sure that GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME is set in all test scripts that currently rely on the initial branch name being `master by default. To determine which test scripts to mark up, the first step was to force-set the default branch name to `master` in - all test scripts that contain the keyword `master`, - t4211, which expects `t/t4211/history.export` with a hard-coded ref to initialize the default branch, - t5560 because it sources `t/t556x_common` which uses `master`, - t8002 and t8012 because both source `t/annotate-tests.sh` which also uses `master`) This trick was performed by this command: $ sed -i '/^ *\. \.\/\(test-lib\|lib-\(bash\|cvs\|git-svn\)\|gitweb-lib\)\.sh$/i\ GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME=master\ export GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME\ ' $(git grep -l master t/t[0-9]*.sh) \ t/t4211*.sh t/t5560*.sh t/t8002*.sh t/t8012*.sh After that, careful, manual inspection revealed that some of the test scripts containing the needle `master` do not actually rely on a specific default branch name: either they mention `master` only in a comment, or they initialize that branch specificially, or they do not actually refer to the current default branch. Therefore, the aforementioned modification was undone in those test scripts thusly: $ git checkout HEAD -- \ t/t0027-auto-crlf.sh t/t0060-path-utils.sh \ t/t1011-read-tree-sparse-checkout.sh \ t/t1305-config-include.sh t/t1309-early-config.sh \ t/t1402-check-ref-format.sh t/t1450-fsck.sh \ t/t2024-checkout-dwim.sh \ t/t2106-update-index-assume-unchanged.sh \ t/t3040-subprojects-basic.sh t/t3301-notes.sh \ t/t3308-notes-merge.sh t/t3423-rebase-reword.sh \ t/t3436-rebase-more-options.sh \ t/t4015-diff-whitespace.sh t/t4257-am-interactive.sh \ t/t5323-pack-redundant.sh t/t5401-update-hooks.sh \ t/t5511-refspec.sh t/t5526-fetch-submodules.sh \ t/t5529-push-errors.sh t/t5530-upload-pack-error.sh \ t/t5548-push-porcelain.sh \ t/t5552-skipping-fetch-negotiator.sh \ t/t5572-pull-submodule.sh t/t5608-clone-2gb.sh \ t/t5614-clone-submodules-shallow.sh \ t/t7508-status.sh t/t7606-merge-custom.sh \ t/t9302-fast-import-unpack-limit.sh We excluded one set of test scripts in these commands, though: the range of `git p4` tests. The reason? `git p4` stores the (foreign) remote branch in the branch called `p4/master`, which is obviously not the default branch. Manual analysis revealed that only five of these tests actually require a specific default branch name to pass; They were modified thusly: $ sed -i '/^ *\. \.\/lib-git-p4\.sh$/i\ GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME=master\ export GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME\ ' t/t980[0167]*.sh t/t9811*.sh Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-11-18 23:44:19 +00:00
export GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME
. ./test-lib.sh
TEST_FILE=foo
test_expect_success 'Setup' '
echo "Initial" >"$TEST_FILE" &&
git add "$TEST_FILE" &&
git commit -m "First Commit" &&
test_tick &&
echo "State 1" >>"$TEST_FILE" &&
git add "$TEST_FILE" &&
test_tick &&
git commit -m "Second Commit"
'
test_expect_success '--orphan creates a new orphan branch from HEAD' '
git checkout --orphan alpha &&
test_must_fail git rev-parse --verify HEAD &&
test "refs/heads/alpha" = "$(git symbolic-ref HEAD)" &&
test_tick &&
git commit -m "Third Commit" &&
test_must_fail git rev-parse --verify HEAD^ &&
git diff-tree --quiet main alpha
'
test_expect_success '--orphan creates a new orphan branch from <start_point>' '
git checkout main &&
git checkout --orphan beta main^ &&
test_must_fail git rev-parse --verify HEAD &&
test "refs/heads/beta" = "$(git symbolic-ref HEAD)" &&
test_tick &&
git commit -m "Fourth Commit" &&
test_must_fail git rev-parse --verify HEAD^ &&
git diff-tree --quiet main^ beta
'
test_expect_success '--orphan must be rejected with -b' '
git checkout main &&
test_must_fail git checkout --orphan new -b newer &&
test refs/heads/main = "$(git symbolic-ref HEAD)"
'
test_expect_success '--orphan must be rejected with -t' '
git checkout main &&
test_must_fail git checkout --orphan new -t main &&
test refs/heads/main = "$(git symbolic-ref HEAD)"
'
test_expect_success '--orphan ignores branch.autosetupmerge' '
git checkout main &&
git config branch.autosetupmerge always &&
git checkout --orphan gamma &&
test -z "$(git config branch.gamma.merge)" &&
test refs/heads/gamma = "$(git symbolic-ref HEAD)" &&
test_must_fail git rev-parse --verify HEAD^
'
test_expect_success '--orphan makes reflog by default' '
git checkout main &&
git config --unset core.logAllRefUpdates &&
git checkout --orphan delta &&
test_must_fail git rev-parse --verify delta@{0} &&
git commit -m Delta &&
git rev-parse --verify delta@{0}
'
test_expect_success '--orphan does not make reflog when core.logAllRefUpdates = false' '
git checkout main &&
git config core.logAllRefUpdates false &&
git checkout --orphan epsilon &&
test_must_fail git rev-parse --verify epsilon@{0} &&
git commit -m Epsilon &&
test_must_fail git rev-parse --verify epsilon@{0}
'
test_expect_success '--orphan with -l makes reflog when core.logAllRefUpdates = false' '
git checkout main &&
git checkout -l --orphan zeta &&
test_must_fail git rev-parse --verify zeta@{0} &&
git commit -m Zeta &&
git rev-parse --verify zeta@{0}
'
test_expect_success 'giving up --orphan not committed when -l and core.logAllRefUpdates = false deletes reflog' '
git checkout main &&
git checkout -l --orphan eta &&
test_must_fail git rev-parse --verify eta@{0} &&
git checkout main &&
test_must_fail git rev-parse --verify eta@{0}
'
test_expect_success '--orphan is rejected with an existing name' '
git checkout main &&
test_must_fail git checkout --orphan main &&
test refs/heads/main = "$(git symbolic-ref HEAD)"
'
test_expect_success '--orphan refuses to switch if a merge is needed' '
git checkout main &&
git reset --hard &&
echo local >>"$TEST_FILE" &&
cat "$TEST_FILE" >"$TEST_FILE.saved" &&
test_must_fail git checkout --orphan new main^ &&
test refs/heads/main = "$(git symbolic-ref HEAD)" &&
test_cmp "$TEST_FILE" "$TEST_FILE.saved" &&
git diff-index --quiet --cached HEAD &&
git reset --hard
'
test_expect_success 'cannot --detach on an unborn branch' '
git checkout main &&
git checkout --orphan new &&
test_must_fail git checkout --detach
'
test_done