Am 31.05.2013 08:49, schrieb Martin von Zweigbergk:
> +# f
> +# /
> +# a---b---c---g---h
> +# \
> +# d---G---i
> +# \ \
> +# e-------u
> +#
> +# uppercase = cherry-picked
> +# h = reverted g
...
> +test_expect_success "rebase -p --onto in merged history drops patches in
> upstream" "
> + reset_rebase &&
> + git rebase -p --onto f h u &&
> + test_cmp_rev f HEAD~3 &&
> + test_revision_subjects 'd i e u' HEAD~2 HEAD^2 HEAD^ HEAD
> +"
> +
> +test_expect_success "rebase -p --onto in merged history does not drop
> patches in onto" "
> + reset_rebase &&
> + git rebase -p --onto h f u &&
> + test_cmp_rev h HEAD~3 &&
> + test_revision_subjects 'd G i e u' HEAD~2 HEAD^2^ HEAD^2 HEAD^ HEAD
> +"
I noticed one new aspect:
The interdiff between v2 and v3 looks like this:
-test_expect_failure "rebase -p --onto in merged history does not lose patches
in upstream" "
+test_expect_success "rebase -p --onto in merged history drops patches in
upstream" "
reset_rebase &&
git rebase -p --onto f h u &&
test_cmp_rev f HEAD~3 &&
- test_revision_subjects 'd G i e u' HEAD~2 HEAD^2^ HEAD^2 HEAD^ HEAD
+ test_revision_subjects 'd i e u' HEAD~2 HEAD^2 HEAD^ HEAD
"
-test_expect_success "rebase -p --onto in merged history drops patches in onto"
"
+test_expect_success "rebase -p --onto in merged history does not drop patches
in onto" "
reset_rebase &&
git rebase -p --onto h f u &&
test_cmp_rev h HEAD~3 &&
- test_revision_subjects 'd i e u' HEAD~2 HEAD^2 HEAD^ HEAD
+ test_revision_subjects 'd G i e u' HEAD~2 HEAD^2^ HEAD^2 HEAD^ HEAD
The expectations that these two tests check changed from v2 to v3.
Notice that former test goes from expect_failure to expect_success,
as it should, but the latter does not change. Strange, isn't it?
The reason is that this check is incomplete:
test_revision_subjects 'd i e u' HEAD~2 HEAD^2 HEAD^ HEAD
and allowed the latter test in the v2 form to pass.
It should be
test_revision_subjects 'd i d e u' HEAD^2^ HEAD^2 HEAD~2 HEAD^ HEAD
The check of the latter test should be:
test_revision_subjects 'd G i d e u' HEAD^2~2 HEAD^2^ HEAD^2 HEAD~2
HEAD^ HEAD
i.e. check all the way back to the mergebase via both branches. This
can be extrapolated to all tests that reconstruct mergy history (not
just these two cases).
-- Hannes
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