[PATCH 0/7] test-lib-functions: a better "test_expect_failure"

As explained in detail in 1/7 there's several major shortcomings to "test_expect_failure", this series adds a "test_expect_todo".

It allows us to assert exactly how something that fails .. fails (no more conflating segfaults for "exit 1"), but also emits all the right output & metadata about the test being "TODO" that "test_expect_failure" does.

The rest of the series then expands on that to convert several more tests, along with adding helpers like:

    todo_test_cmp want expect actual

Where the "want" is what we want once we'd mark the test as "test_expect_success", but the "expect" is what we get right now with the failing TODO test.

This series has a (rather trivial) textual conflict with js/ci-github-workflow-markup in "seen".

Ævar Arnfjörð Bjarmason (7):
  test-lib: add a "test_expect_todo", similar to "test_expect_failure"
  test-lib-functions: add and use a "test_todo" helper
  tests: allow test_* in "test_must_fail_acceptable" for "test_todo"
  test-lib-functions: add and use a "todo_test_cmp" helper
  test-lib-functions: add and use a "todo_test_path" helper
  test-lib-functions: make test_todo support a --reset
  sparse tests: convert a TODO test to use "test_expect_todo"

 t/README                           |  20 +++-
 t/t0000-basic.sh                   |  48 +++++++-
 t/t1021-rerere-in-workdir.sh       |   9 +-
 t/t1060-object-corruption.sh       |   4 +-
 t/t1091-sparse-checkout-builtin.sh |  17 ++-
 t/t1309-early-config.sh            |  14 ++-
 t/t1410-reflog.sh                  |   4 +-
 t/t3600-rm.sh                      |  23 +++-
 t/t6403-merge-file.sh              |  32 +++++-
 t/t7814-grep-recurse-submodules.sh |  60 ++++++----
 t/t7815-grep-binary.sh             |   4 +-
 t/test-lib-functions.sh            | 172 ++++++++++++++++++++++++++++-
 t/test-lib.sh                      |  32 +++++-
 13 files changed, 379 insertions(+), 60 deletions(-)