[PATCH v2 0/8] Do not use abbreviated options in tests

["Johannes Schindelin via GitGitGadget" <gitgitgadget@gmail.com>]

We do not want to have tests that need to be changed by completely unrelated
patch series, just because abbreviations that used to be unique are being
made non-unique by said patch series.

I stumbled over this while investigating the test failures in
dl/rebase-i-keep-base
[https://dev.azure.com/gitgitgadget/git/_build/results?buildId=5482&view=ms.vss-test-web.build-test-results-tab]
: the new --keep-base option makes the --keep abbreviation of --keep-empty 
in t5407 non-unique, which causes the test suite to fail.

Changes since v1:

 * Fixed a typo ("expaneded") in the last commit message.
 * Added a regression test for the GIT_TEST_DISALLOW_ABBREVIATED_OPTIONS 
   handling.
 * Adjusted the code in test-lib.sh that makes sure that this variable is
   set: it is now consistent with the way we do similar things in that file
   already.

Johannes Schindelin (8):
  tests (rebase): spell out the `--keep-empty` option
  tests (rebase): spell out the `--force-rebase` option
  t7810: do not abbreviate `--no-exclude-standard` nor `--invert-match`
  t5531: avoid using an abbreviated option
  tests (push): do not abbreviate the `--follow-tags` option
  tests (status): spell out the `--find-renames` option in full
  tests (pack-objects): use the full, unabbreviated `--revs` option
  tests: disallow the use of abbreviated options (by default)

 parse-options.c                        |  9 ++++++
 t/README                               |  4 +++
 t/t0040-parse-options.sh               | 14 +++++++-
 t/t3415-rebase-autosquash.sh           |  2 +-
 t/t3430-rebase-merges.sh               |  4 +--
 t/t5317-pack-objects-filter-objects.sh | 44 +++++++++++++-------------
 t/t5407-post-rewrite-hook.sh           |  4 +--
 t/t5516-fetch-push.sh                  |  4 +--
 t/t5531-deep-submodule-push.sh         |  2 +-
 t/t7525-status-rename.sh               |  8 ++---
 t/t7810-grep.sh                        | 16 +++++-----
 t/test-lib.sh                          |  7 ++++
 12 files changed, 75 insertions(+), 43 deletions(-)


base-commit: 041f5ea1cf987a4068ef5f39ba0a09be85952064
Published-As: https://github.com/gitgitgadget/git/releases/tag/pr-167%2Fdscho%2Fdisallow-abbreviated-options-in-tests-v2
Fetch-It-Via: git fetch https://github.com/gitgitgadget/git pr-167/dscho/disallow-abbreviated-options-in-tests-v2
Pull-Request: https://github.com/gitgitgadget/git/pull/167

Range-diff vs v1:

 1:  a1b4b74b91 = 1:  a1b4b74b91 tests (rebase): spell out the `--keep-empty` option
 2:  017ec9a0c7 = 2:  017ec9a0c7 tests (rebase): spell out the `--force-rebase` option
 3:  7d8f6a2ee6 = 3:  7d8f6a2ee6 t7810: do not abbreviate `--no-exclude-standard` nor `--invert-match`
 4:  f45c435e4a = 4:  f45c435e4a t5531: avoid using an abbreviated option
 5:  7372059922 = 5:  7372059922 tests (push): do not abbreviate the `--follow-tags` option
 6:  531450c00d = 6:  531450c00d tests (status): spell out the `--find-renames` option in full
 7:  a722a065d2 = 7:  a722a065d2 tests (pack-objects): use the full, unabbreviated `--revs` option
 8:  04c36b1de9 ! 8:  a27d316855 tests: disallow the use of abbreviated options (by default)
     @@ -14,7 +14,7 @@
      
          For example, if a future contribution added a new mode
          `git init --babyproofing` and a previously-introduced test case used the
     -    fact that `git init --ba` expaneded to `git init --bare`, that future
     +    fact that `git init --ba` expanded to `git init --bare`, that future
          contribution would now have to touch seemingly unrelated tests just to
          keep the test suite from failing.
      
     @@ -115,6 +115,18 @@
       	test-tool parse-options --no-ambig >output 2>output.err &&
       	test_must_be_empty output.err &&
       	test_cmp expect output
     +@@
     + 	test-tool parse-options --expect="verbose: 0" -v -v -v --no-verbose
     + '
     + 
     ++test_expect_success 'GIT_TEST_DISALLOW_ABBREVIATED_OPTIONS works' '
     ++	env GIT_TEST_DISALLOW_ABBREVIATED_OPTIONS=false \
     ++		test-tool parse-options --ye &&
     ++	test_must_fail env GIT_TEST_DISALLOW_ABBREVIATED_OPTIONS=true \
     ++		test-tool parse-options --ye
     ++'
     ++
     + test_done
      
       diff --git a/t/test-lib.sh b/t/test-lib.sh
       --- a/t/test-lib.sh
     @@ -124,10 +136,11 @@
       export PERL_PATH SHELL_PATH
       
      +# Disallow the use of abbreviated options in the test suite by default
     -+test -n "$GIT_TEST_DISALLOW_ABBREVIATED_OPTIONS" || {
     ++if test -n "${GIT_TEST_DISALLOW_ABBREVIATED_OPTIONS:+isset}"
     ++then
      +	GIT_TEST_DISALLOW_ABBREVIATED_OPTIONS=true
      +	export GIT_TEST_DISALLOW_ABBREVIATED_OPTIONS
     -+}
     ++fi
      +
       ################################################################
       # It appears that people try to run tests without building...

-- 
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