git/t/t6408-merge-up-to-date.sh
Elijah Newren 919df31955 Collect merge-related tests to t64xx
The tests for the merge machinery are spread over several places.
Collect them into t64xx for simplicity.  Some notes:

t60[234]*.sh:
  Merge tests started in t602*, overgrew bisect and remote tracking
  tests in t6030, t6040, and t6041, and nearly overtook replace tests
  in t6050.  This made picking out relevant tests that I wanted to run
  in a tighter loop slightly more annoying for years.

t303*.sh:
  These started out as tests for the 'merge-recursive' toplevel command,
  but did not restrict to that and had lots of overlap with the
  underlying merge machinery.
t7405, t7613:
  submodule-specific merge logic started out in submodule.c but was
  moved to merge-recursive.c in commit 18cfc08866 ("submodule.c: move
  submodule merging to merge-recursive.c", 2018-05-15).  Since these
  tests are about the logic found in the merge machinery, moving these
  tests to be with the merge tests makes sense.

t7607, t7609:
  Having tests spread all over the place makes it more likely that
  additional tests related to a certain piece of logic grow in all those
  other places.  Much like t303*.sh, these two tests were about the
  underlying merge machinery rather than outer levels.

Tests that were NOT moved:

t76[01]*.sh:
  Other than the four tests mentioned above, the remaining tests in
  t76[01]*.sh are related to non-recursive merge strategies, parameter
  parsing, and other stuff associated with the highlevel builtin/merge.c
  rather than the recursive merge machinery.

t3[45]*.sh:
  The rebase testcases in t34*.sh also test the merge logic pretty
  heavily; sometimes changes I make only trigger failures in the rebase
  tests.  The rebase tests are already nicely coupled together, though,
  and I didn't want to mess that up.  Similar comments apply for the
  cherry-pick tests in t35*.sh.

Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-08-10 15:59:00 -07:00

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#!/bin/sh
test_description='merge fast-forward and up to date'
. ./test-lib.sh
test_expect_success setup '
>file &&
git add file &&
test_tick &&
git commit -m initial &&
git tag c0 &&
echo second >file &&
git add file &&
test_tick &&
git commit -m second &&
git tag c1 &&
git branch test &&
echo third >file &&
git add file &&
test_tick &&
git commit -m third &&
git tag c2
'
test_expect_success 'merge -s recursive up-to-date' '
git reset --hard c1 &&
test_tick &&
git merge -s recursive c0 &&
expect=$(git rev-parse c1) &&
current=$(git rev-parse HEAD) &&
test "$expect" = "$current"
'
test_expect_success 'merge -s recursive fast-forward' '
git reset --hard c0 &&
test_tick &&
git merge -s recursive c1 &&
expect=$(git rev-parse c1) &&
current=$(git rev-parse HEAD) &&
test "$expect" = "$current"
'
test_expect_success 'merge -s ours up-to-date' '
git reset --hard c1 &&
test_tick &&
git merge -s ours c0 &&
expect=$(git rev-parse c1) &&
current=$(git rev-parse HEAD) &&
test "$expect" = "$current"
'
test_expect_success 'merge -s ours fast-forward' '
git reset --hard c0 &&
test_tick &&
git merge -s ours c1 &&
expect=$(git rev-parse c0^{tree}) &&
current=$(git rev-parse HEAD^{tree}) &&
test "$expect" = "$current"
'
test_expect_success 'merge -s subtree up-to-date' '
git reset --hard c1 &&
test_tick &&
git merge -s subtree c0 &&
expect=$(git rev-parse c1) &&
current=$(git rev-parse HEAD) &&
test "$expect" = "$current"
'
test_expect_success 'merge fast-forward octopus' '
git reset --hard c0 &&
test_tick &&
git merge c1 c2 &&
expect=$(git rev-parse c2) &&
current=$(git rev-parse HEAD) &&
test "$expect" = "$current"
'
test_done