Re: [PATCH v2 06/20] t1092: compare sparse-checkout to sparse-index

>
> From: Derrick Stolee <dstolee@microsoft.com>
>
> Add a new 'sparse-index' repo alongside the 'full-checkout' and
> 'sparse-checkout' repos in t1092-sparse-checkout-compatibility.sh. Also
> add run_on_sparse and test_sparse_match helpers. These helpers will be
> used when the sparse index is implemented.
>
> Add GIT_TEST_SPARSE_INDEX environment variable to enable the
> sparse-index by default. This will be intended to use across the entire
> test suite, except that it will only affect cases where the
> sparse-checkout feature is enabled.

>
> Signed-off-by: Derrick Stolee <dstolee@microsoft.com>
> ---
>  t/README                                 |  3 +++
>  t/t1092-sparse-checkout-compatibility.sh | 24 ++++++++++++++++++++----
>  2 files changed, 23 insertions(+), 4 deletions(-)
>
> diff --git a/t/README b/t/README
> index 593d4a4e270c..b98bc563aab5 100644
> --- a/t/README
> +++ b/t/README
> @@ -439,6 +439,9 @@ and "sha256".
>  GIT_TEST_WRITE_REV_INDEX=<boolean>, when true enables the
>  'pack.writeReverseIndex' setting.
>
> +GIT_TEST_SPARSE_INDEX=<boolean>, when true enables index writes to use the
> +sparse-index format by default.
> +
>  Naming Tests
>  ------------
>
> diff --git a/t/t1092-sparse-checkout-compatibility.sh b/t/t1092-sparse-checkout-compatibility.sh
> index 3725d3997e70..71d6f9e4c014 100755
> --- a/t/t1092-sparse-checkout-compatibility.sh
> +++ b/t/t1092-sparse-checkout-compatibility.sh
> @@ -7,6 +7,7 @@ test_description='compare full workdir to sparse workdir'
>  test_expect_success 'setup' '
>         git init initial-repo &&
>         (
> +               GIT_TEST_SPARSE_INDEX=0 &&
>                 cd initial-repo &&
>                 echo a >a &&
>                 echo "after deep" >e &&
> @@ -87,23 +88,32 @@ init_repos () {
>
>         cp -r initial-repo sparse-checkout &&
>         git -C sparse-checkout reset --hard &&
> -       git -C sparse-checkout sparse-checkout init --cone &&
> +
> +       cp -r initial-repo sparse-index &&
> +       git -C sparse-index reset --hard &&
>
>         # initialize sparse-checkout definitions
> -       git -C sparse-checkout sparse-checkout set deep
> +       git -C sparse-checkout sparse-checkout init --cone &&
> +       git -C sparse-checkout sparse-checkout set deep &&
> +       GIT_TEST_SPARSE_INDEX=1 git -C sparse-index sparse-checkout init --cone &&
> +       GIT_TEST_SPARSE_INDEX=1 git -C sparse-index sparse-checkout set deep
>  }
>
>  run_on_sparse () {
>         (
>                 cd sparse-checkout &&
> -               "$@" >../sparse-checkout-out 2>../sparse-checkout-err
> +               GIT_TEST_SPARSE_INDEX=0 "$@" >../sparse-checkout-out 2>../sparse-checkout-err
> +       ) &&
> +       (
> +               cd sparse-index &&
> +               GIT_TEST_SPARSE_INDEX=1 "$@" >../sparse-index-out 2>../sparse-index-err
>         )
>  }
>
>  run_on_all () {
>         (
>                 cd full-checkout &&
> -               "$@" >../full-checkout-out 2>../full-checkout-err
> +               GIT_TEST_SPARSE_INDEX=0 "$@" >../full-checkout-out 2>../full-checkout-err
>         ) &&
>         run_on_sparse "$@"
>  }
> @@ -114,6 +124,12 @@ test_all_match () {
>         test_cmp full-checkout-err sparse-checkout-err
>  }
>
> +test_sparse_match () {
> +       run_on_sparse $* &&

> +       test_cmp sparse-checkout-out sparse-index-out &&
> +       test_cmp sparse-checkout-err sparse-index-err
> +}
> +
>  test_expect_success 'status with options' '
>         init_repos &&
>         test_all_match git status --porcelain=v2 &&
> --
> gitgitgadget
>