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t3432: make these tests work with either am or merge backends

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t3432 had several stress tests for can_fast_forward(), whose intent was
to ensure we were using the optimization of just fast forwarding when
possible.  However, these tests verified that fast forwards had happened
based on the output that rebase printed to the terminal.  We can instead
test more directly that we actually fast-forwarded by checking the
reflog, which also has the side effect of making the tests applicable
for the merge/interactive backend.

This change does lose the distinction between "noop" and "noop-force",
but as stated in commit c9efc21683 ("t3432: test for --no-ff's
interaction with fast-forward", 2019-08-27) which introduced that
distinction: "These tests aren't supposed to endorse the status quo,
just test for what we're currently doing.".

This change does not actually run these tests with the merge/interactive
backend; instead this is just a preparatory commit.  A subsequent commit
which fixes can_fast_forward() to work with that backend will then also
change t3432 to add tests of that backend as well.

Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Elijah Newren 2020-02-15 21:36:30 +00:00 committed by Junio C Hamano
parent 93122c985a
commit 9a70f3d4ae
1 changed files with 22 additions and 26 deletions
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48
t/t3432-rebase-fast-forward.sh
View file

@ -44,19 +44,15 @@ test_rebase_same_head_ () {
test_expect_$status "git rebase$flag $* with $changes is $what with $cmp HEAD" "
oldhead=\$(git rev-parse HEAD) &&
test_when_finished 'git reset --hard \$oldhead' &&
cp .git/logs/HEAD expect &&
git rebase$flag $* >stdout &&
if test $what = work
then
# Must check this case first, for 'is up to
# date, rebase forced[...]rewinding head' cases
test_i18ngrep 'rewinding head' stdout
old=\$(wc -l <expect) &&
test_line_count '-gt' \$old .git/logs/HEAD
elif test $what = noop
then
test_i18ngrep 'is up to date' stdout &&
test_i18ngrep ! 'rebase forced' stdout
elif test $what = noop-force
then
test_i18ngrep 'is up to date, rebase forced' stdout
test_cmp expect .git/logs/HEAD
fi &&
newhead=\$(git rev-parse HEAD) &&
if test $cmp = same
@ -71,14 +67,14 @@ test_rebase_same_head_ () {
changes='no changes'
test_rebase_same_head success noop same success work same
test_rebase_same_head success noop same success noop-force same master
test_rebase_same_head success noop same success noop-force diff --onto B B
test_rebase_same_head success noop same success noop-force diff --onto B... B
test_rebase_same_head success noop same success noop-force same --onto master... master
test_rebase_same_head success noop same success noop-force same --keep-base master
test_rebase_same_head success noop same success noop-force same --keep-base
test_rebase_same_head success noop same success noop-force same --no-fork-point
test_rebase_same_head success noop same success noop-force same --keep-base --no-fork-point
test_rebase_same_head success noop same success work same master
test_rebase_same_head success noop same success work diff --onto B B
test_rebase_same_head success noop same success work diff --onto B... B
test_rebase_same_head success noop same success work same --onto master... master
test_rebase_same_head success noop same success work same --keep-base master
test_rebase_same_head success noop same success work same --keep-base
test_rebase_same_head success noop same success work same --no-fork-point
test_rebase_same_head success noop same success work same --keep-base --no-fork-point
test_rebase_same_head success noop same success work same --fork-point master
test_rebase_same_head success noop same success work diff --fork-point --onto B B
test_rebase_same_head success noop same success work diff --fork-point --onto B... B
@ -91,14 +87,14 @@ test_expect_success 'add work same to side' '
changes='our changes'
test_rebase_same_head success noop same success work same
test_rebase_same_head success noop same success noop-force same master
test_rebase_same_head success noop same success noop-force diff --onto B B
test_rebase_same_head success noop same success noop-force diff --onto B... B
test_rebase_same_head success noop same success noop-force same --onto master... master
test_rebase_same_head success noop same success noop-force same --keep-base master
test_rebase_same_head success noop same success noop-force same --keep-base
test_rebase_same_head success noop same success noop-force same --no-fork-point
test_rebase_same_head success noop same success noop-force same --keep-base --no-fork-point
test_rebase_same_head success noop same success work same master
test_rebase_same_head success noop same success work diff --onto B B
test_rebase_same_head success noop same success work diff --onto B... B
test_rebase_same_head success noop same success work same --onto master... master
test_rebase_same_head success noop same success work same --keep-base master
test_rebase_same_head success noop same success work same --keep-base
test_rebase_same_head success noop same success work same --no-fork-point
test_rebase_same_head success noop same success work same --keep-base --no-fork-point
test_rebase_same_head success noop same success work same --fork-point master
test_rebase_same_head success noop same success work diff --fork-point --onto B B
test_rebase_same_head success noop same success work diff --fork-point --onto B... B
@ -112,8 +108,8 @@ test_expect_success 'add work same to upstream' '
'
changes='our and their changes'
test_rebase_same_head success noop same success noop-force diff --onto B B
test_rebase_same_head success noop same success noop-force diff --onto B... B
test_rebase_same_head success noop same success work diff --onto B B
test_rebase_same_head success noop same success work diff --onto B... B
test_rebase_same_head success noop same success work diff --onto master... master
test_rebase_same_head success noop same success work diff --keep-base master
test_rebase_same_head success noop same success work diff --keep-base