[PATCH v2] t1309: use a neutral branch name in the `onbranch` test cases

From: Johannes Schindelin <johannes.schindelin@gmx.de>

The `onbranch` test cases touched by this patch do not actually try to include any other config. Their purpose is to avoid regressing on two bugs in the `include.onbranch:<name>.path` code that we fixed in the past, bugs that are actually unrelated to any concrete branch name.

The first bug was fixed in 85fe0e800ca (config: work around bug with includeif:onbranch and early config, 2019-07-31). Essentially, when reading early config, there would be a catch-22 trying to access the refs, and therefore we simply cannot evaluate the condition at that point. The test case ensures that we avoid emitting this bogus message:

	BUG: refs.c:1851: attempting to get main_ref_store outside of repository

The second test case concerns the non-Git scenario, where we simply do not have a current branch to begin with (because we don't have a repository in the first place), and the test case was introduced in 22932d9169f (config: stop checking whether the_repository is NULL, 2019-08-06) to ensure that we don't cause a segmentation fault should the code still incorrectly try to look at any ref.

In short, neither of these two test cases will ever look at a current branch name, even in case of regressions. Therefore, the actual branch name does not matter at all. We can therefore easily avoid racially-charged branch names here, and that's what this patch does.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
---
    t1309: use a non-loaded branch name in the onbranch test cases
    
    Just something I stumbled over while working on 
    https://github.com/gitgitgadget/git/pull/762.
    
    Changes since v1:
    
     * The commit message was obviously not clear at all, which has been
       addressed.

Published-As: https://github.com/gitgitgadget/git/releases/tag/pr-791%2Fdscho%2Ft1309-onbranch-tests-v2
Fetch-It-Via: git fetch https://github.com/gitgitgadget/git pr-791/dscho/t1309-onbranch-tests-v2
Pull-Request: https://github.com/gitgitgadget/git/pull/791

Range-diff vs v1:

 1:  c78ddaf9ad ! 1:  7897650556 t1309: use a non-loaded branch name in the `onbranch` test cases
     @@ Metadata
      Author: Johannes Schindelin <Johannes.Schindelin@gmx.de>
      
       ## Commit message ##
     -    t1309: use a non-loaded branch name in the `onbranch` test cases
     +    t1309: use a neutral branch name in the `onbranch` test cases
      
     -    The `onbranch` test cases in question do not actually want to include
     -    anything; Instead, they want to verify that the `onbranch` code path
     -    does not regress in the early-config case or in the non-Git case, where
     -    the `onbranch` include is actually ignored.
     +    The `onbranch` test cases touched by this patch do not actually try to
     +    include any other config. Their purpose is to avoid regressing on two
     +    bugs in the `include.onbranch:<name>.path` code that we fixed in the
     +    past, bugs that are actually unrelated to any concrete branch name.
      
     -    Therefore, the actual branch name does not matter at all. We might just
     -    as well avoid racially-charged names here.
     +    The first bug was fixed in 85fe0e800ca (config: work around bug with
     +    includeif:onbranch and early config, 2019-07-31). Essentially, when
     +    reading early config, there would be a catch-22 trying to access the
     +    refs, and therefore we simply cannot evaluate the condition at that
     +    point. The test case ensures that we avoid emitting this bogus message:
     +
     +            BUG: refs.c:1851: attempting to get main_ref_store outside of repository
     +
     +    The second test case concerns the non-Git scenario, where we simply do
     +    not have a current branch to begin with (because we don't have a
     +    repository in the first place), and the test case was introduced in
     +    22932d9169f (config: stop checking whether the_repository is NULL,
     +    2019-08-06) to ensure that we don't cause a segmentation fault should
     +    the code still incorrectly try to look at any ref.
     +
     +    In short, neither of these two test cases will ever look at a current
     +    branch name, even in case of regressions. Therefore, the actual branch
     +    name does not matter at all. We can therefore easily avoid
     +    racially-charged branch names here, and that's what this patch does.
      
          Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
      

 t/t1309-early-config.sh | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)