[0/1] Add coverage for 'git format-patch --range-diff' single-patch case

Message

Johannes Schindelin via GitGitGadget Sept. 11, 2018, 8:21 p.m. UTC

In es/format-patch-rangediff, we added a '--range-diff' option to
git-format-patch to automatically add a range-diff. We also added an option
to write the diff as commentary to a single patch submission. However, this
check was not tested.

I discovered this test gap by running 'make coverage-test coverage-report'
on 'next' and then comparing the uncovered lines with those in the diff
between 'master' and 'next'. I have a script that automates this process,
and I'm still working on polishing it. You can see an earlier version at
[1].

Based on es/format-patch-rangediff

Cc: [e-mail]

Cc: [e-mail]

[1] 
https://github.com/derrickstolee/git/blob/coverage/contrib/coverage-diff.shA
bash script to report uncovered lines that were added in a diff.

Derrick Stolee (1):
  t3206-range-diff.sh: cover single-patch case

 t/t3206-range-diff.sh | 5 +++++
 1 file changed, 5 insertions(+)


base-commit: 40ce41604daf200cdc85abded0133d40faafc2f8
Published-As: https://github.com/gitgitgadget/git/releases/tags/pr-37%2Fderrickstolee%2Frange-diff-test-v1
Fetch-It-Via: git fetch https://github.com/gitgitgadget/git pr-37/derrickstolee/range-diff-test-v1
Pull-Request: https://github.com/gitgitgadget/git/pull/37

Comments

Derrick Stolee Sept. 11, 2018, 8:29 p.m. UTC | #1

On 9/11/2018 4:21 PM, Derrick Stolee via GitGitGadget wrote:
> In es/format-patch-rangediff, we added a '--range-diff' option to
> git-format-patch to automatically add a range-diff. We also added an option
> to write the diff as commentary to a single patch submission. However, this
> check was not tested.
>
> I discovered this test gap by running 'make coverage-test coverage-report'
> on 'next' and then comparing the uncovered lines with those in the diff
> between 'master' and 'next'. I have a script that automates this process,
> and I'm still working on polishing it. You can see an earlier version at
> [1].
>
> Based on es/format-patch-rangediff
>
> Cc: [e-mail]
>
> Cc: [e-mail]

Sorry that these Cc's didn't work (again). Adding them manually and 
investigating the GGG code.

-Stolee

Eric Sunshine Sept. 11, 2018, 9:21 p.m. UTC | #2

On Tue, Sep 11, 2018 at 4:26 PM Derrick Stolee via GitGitGadget
<[e-mail]> wrote:
> In es/format-patch-rangediff, we added a '--range-diff' option to
> git-format-patch to automatically add a range-diff. We also added an option
> to write the diff as commentary to a single patch submission. However, this
> check was not tested.

It was an intentional (though unjustified) oversight. Thanks for
working on this.

> I discovered this test gap by running 'make coverage-test coverage-report'
> on 'next' and then comparing the uncovered lines with those in the diff
> between 'master' and 'next'. I have a script that automates this process,
> and I'm still working on polishing it.

Interesting. Does your script detect that the --creation-factor option
added by patch 13/14 [1] also lacks a test? (I'm not necessarily
suggesting adding a test at the moment. Even Dscho's git-range-diff
series doesn't have a test for "creation factor", so it wouldn't
necessarily make sense to add a test only for the git-format-patch
case. Instead, we'd want, at some point, to add tests covering both
git-range-diff and git-format-patch.)

[1]: https://public-inbox.org/git/[e-mail]/