You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
 
 
 
 
 
 
Junio C Hamano 60727b5800 Merge branch 'maint' 17 years ago
..
lib-httpd
t3900
t4013 "git diff": do not ignore index without --no-index 17 years ago
t4020 t4020: don't use grep -a 17 years ago
t4100
t4101
t5100 t5100: Avoid filename "nul" 17 years ago
t5515 git-fetch test: test tracking fetch results, not just FETCH_HEAD 17 years ago
t7004
t7500
t9110
t9111
t9115
t9121 git-svn: fix following renamed paths when tracking a single path 17 years ago
.gitattributes
.gitignore Rename the test trash directory to contain spaces. 17 years ago
Makefile t/Makefile: "trash" directory was renamed recently 17 years ago
README t/Makefile: "trash" directory was renamed recently 17 years ago
annotate-tests.sh
diff-lib.sh tests: do not use implicit "git diff --no-index" 17 years ago
lib-git-svn.sh Merge branch 'bd/tests' 17 years ago
lib-httpd.sh Don't use the 'export NAME=value' in the test scripts. 17 years ago
lib-read-tree-m-3way.sh
t0000-basic.sh Fix tests breaking when checkout path contains shell metacharacters 17 years ago
t0001-init.sh git-init: accept --bare option 17 years ago
t0002-gitfile.sh Add platform-independent .git "symlink" 17 years ago
t0003-attributes.sh Merge branch 'maint-1.5.4' into maint 17 years ago
t0004-unwritable.sh write-tree: properly detect failure to write tree objects 17 years ago
t0010-racy-git.sh
t0020-crlf.sh more tr portability test script fixes 17 years ago
t0021-conversion.sh t0021: tr portability fix for Solaris 17 years ago
t0022-crlf-rename.sh add test_cmp function for test scripts 17 years ago
t0023-crlf-am.sh
t0030-stripspace.sh tests: do not use implicit "git diff --no-index" 17 years ago
t0040-parse-options.sh tests: do not use implicit "git diff --no-index" 17 years ago
t0050-filesystem.sh t0050: Fix merge test on case sensitive file systems 17 years ago
t1000-read-tree-m-3way.sh tests: do not use implicit "git diff --no-index" 17 years ago
t1001-read-tree-m-2way.sh tests: do not use implicit "git diff --no-index" 17 years ago
t1002-read-tree-m-u-2way.sh tests: do not use implicit "git diff --no-index" 17 years ago
t1003-read-tree-prefix.sh
t1004-read-tree-m-u-wf.sh Fix read-tree not to discard errors 17 years ago
t1005-read-tree-reset.sh add test_cmp function for test scripts 17 years ago
t1006-cat-file.sh change quoting in test t1006-cat-file.sh 17 years ago
t1007-hash-object.sh git-hash-object: Add --stdin-paths option 17 years ago
t1020-subdirectory.sh Fix tests breaking when checkout path contains shell metacharacters 17 years ago
t1100-commit-tree-options.sh
t1200-tutorial.sh
t1300-repo-config.sh tests: do not use implicit "git diff --no-index" 17 years ago
t1301-shared-repo.sh Make core.sharedRepository more generic 17 years ago
t1302-repo-version.sh
t1303-wacky-config.sh tests: do not use implicit "git diff --no-index" 17 years ago
t1400-update-ref.sh Add some tests for git update-ref -d 17 years ago
t1410-reflog.sh gc: call "prune --expire 2.weeks.ago" by default 17 years ago
t1420-lost-found.sh
t1500-rev-parse.sh Don't use the 'export NAME=value' in the test scripts. 17 years ago
t1501-worktree.sh Don't use the 'export NAME=value' in the test scripts. 17 years ago
t1502-rev-parse-parseopt.sh tests: do not use implicit "git diff --no-index" 17 years ago
t1503-rev-parse-verify.sh rev-parse --verify: do not output anything on error 17 years ago
t2000-checkout-cache-clash.sh
t2001-checkout-cache-clash.sh
t2002-checkout-cache-u.sh Use the modern syntax of git-diff-files in t2002-checkout-cache-u.sh 17 years ago
t2003-checkout-cache-mkdir.sh
t2004-checkout-cache-temp.sh
t2005-checkout-index-symlinks.sh
t2007-checkout-symlink.sh
t2008-checkout-subdir.sh
t2009-checkout-statinfo.sh
t2050-git-dir-relative.sh
t2100-update-cache-badpath.sh
t2101-update-index-reupdate.sh
t2102-update-index-symlinks.sh
t2200-add-update.sh "git-add -n -u" should not add but just report 17 years ago
t2201-add-update-typechange.sh diff-files: careful when inspecting work tree items 17 years ago
t3000-ls-files-others.sh
t3001-ls-files-others-exclude.sh tests: do not use implicit "git diff --no-index" 17 years ago
t3002-ls-files-dashpath.sh tests: do not use implicit "git diff --no-index" 17 years ago
t3010-ls-files-killed-modified.sh
t3020-ls-files-error-unmatch.sh
t3030-merge-recursive.sh tests: do not use implicit "git diff --no-index" 17 years ago
t3040-subprojects-basic.sh tests: do not use implicit "git diff --no-index" 17 years ago
t3050-subprojects-fetch.sh Fix tests breaking when checkout path contains shell metacharacters 17 years ago
t3060-ls-files-with-tree.sh add test_cmp function for test scripts 17 years ago
t3100-ls-tree-restrict.sh tests: do not use implicit "git diff --no-index" 17 years ago
t3101-ls-tree-dirname.sh tests: do not use implicit "git diff --no-index" 17 years ago
t3200-branch.sh Allow tracking branches to set up rebase by default. 17 years ago
t3201-branch-contains.sh Add tests for `branch --[no-]merged` 17 years ago
t3210-pack-refs.sh
t3300-funny-names.sh tests: do not use implicit "git diff --no-index" 17 years ago
t3400-rebase.sh Merge branch 'bd/tests' 17 years ago
t3401-rebase-partial.sh
t3402-rebase-merge.sh
t3403-rebase-skip.sh
t3404-rebase-interactive.sh Fix tests breaking when checkout path contains shell metacharacters 17 years ago
t3405-rebase-malformed.sh add test_cmp function for test scripts 17 years ago
t3406-rebase-message.sh add test_cmp function for test scripts 17 years ago
t3407-rebase-abort.sh git-rebase.sh: Fix --merge --abort failures when path contains whitespace 17 years ago
t3408-rebase-multi-line.sh rebase: do not munge commit log message 17 years ago
t3500-cherry.sh Don't use the 'export NAME=value' in the test scripts. 17 years ago
t3501-revert-cherry-pick.sh
t3502-cherry-pick-merge.sh
t3600-rm.sh
t3700-add.sh Merge branch 'ar/add-unreadable' 17 years ago
t3701-add-interactive.sh Fix t3701 if core.filemode disabled 17 years ago
t3800-mktag.sh mktag.c: tweak validation of tagger field and adjust test script 17 years ago
t3900-i18n-commit.sh tests: do not use implicit "git diff --no-index" 17 years ago
t3901-8859-1.txt
t3901-i18n-patch.sh
t3901-utf8.txt
t3902-quoted.sh add test_cmp function for test scripts 17 years ago
t3903-stash.sh add test_cmp function for test scripts 17 years ago
t4000-diff-format.sh
t4001-diff-rename.sh
t4002-diff-basic.sh
t4003-diff-rename-1.sh
t4004-diff-rename-symlink.sh
t4005-diff-rename-2.sh
t4006-diff-mode.sh tests: do not use implicit "git diff --no-index" 17 years ago
t4007-rename-3.sh
t4008-diff-break-rewrite.sh
t4009-diff-rename-4.sh
t4010-diff-pathspec.sh
t4011-diff-symlink.sh
t4012-diff-binary.sh
t4013-diff-various.sh "git diff": do not ignore index without --no-index 17 years ago
t4014-format-patch.sh tests: do not use implicit "git diff --no-index" 17 years ago
t4015-diff-whitespace.sh tests: do not use implicit "git diff --no-index" 17 years ago
t4016-diff-quote.sh tests: do not use implicit "git diff --no-index" 17 years ago
t4017-diff-retval.sh
t4017-quiet.sh
t4018-diff-funcname.sh tests: do not use implicit "git diff --no-index" 17 years ago
t4019-diff-wserror.sh
t4020-diff-external.sh t4020: don't use grep -a 17 years ago
t4021-format-patch-numbered.sh
t4021-format-patch-signer-mime.sh format-patch: generate MIME header as needed even when there is format.header 17 years ago
t4022-diff-rewrite.sh tr portability fixes 17 years ago
t4023-diff-rename-typechange.sh add test_cmp function for test scripts 17 years ago
t4024-diff-optimize-common.sh add test_cmp function for test scripts 17 years ago
t4025-hunk-header.sh add test_cmp function for test scripts 17 years ago
t4026-color.sh
t4027-diff-submodule.sh diff: a submodule not checked out is not modified 17 years ago
t4028-format-patch-mime-headers.sh format-patch: generate MIME header as needed even when there is format.header 17 years ago
t4100-apply-stat.sh tests: do not use implicit "git diff --no-index" 17 years ago
t4101-apply-nonl.sh
t4102-apply-rename.sh
t4103-apply-binary.sh more tr portability test script fixes 17 years ago
t4104-apply-boundary.sh tests: do not use implicit "git diff --no-index" 17 years ago
t4105-apply-fuzz.sh add test_cmp function for test scripts 17 years ago
t4109-apply-multifrag.sh
t4110-apply-scan.sh
t4112-apply-renames.sh
t4113-apply-ending.sh
t4114-apply-typechange.sh
t4115-apply-symlink.sh tests: do not use implicit "git diff --no-index" 17 years ago
t4116-apply-reverse.sh tests: do not use implicit "git diff --no-index" 17 years ago
t4117-apply-reject.sh tests: do not use implicit "git diff --no-index" 17 years ago
t4118-apply-empty-context.sh tests: do not use implicit "git diff --no-index" 17 years ago
t4119-apply-config.sh
t4120-apply-popt.sh
t4121-apply-diffs.sh
t4122-apply-symlink-inside.sh
t4123-apply-shrink.sh
t4124-apply-ws-rule.sh
t4125-apply-ws-fuzz.sh add test_cmp function for test scripts 17 years ago
t4126-apply-empty.sh builtin-apply: do not declare patch is creation when we do not know it 17 years ago
t4150-am.sh Merge t4150-am-subdir.sh and t4151-am.sh into t4150-am.sh 17 years ago
t4200-rerere.sh tests: do not use implicit "git diff --no-index" 17 years ago
t4201-shortlog.sh Redo "add test_cmp function for test scripts" 17 years ago
t4202-log.sh
t5000-tar-tree.sh t5000: tar portability fix 17 years ago
t5100-mailinfo.sh t5100: Avoid filename "nul" 17 years ago
t5300-pack-object.sh Merge branch 'mk/unpack-careful' 17 years ago
t5301-sliding-window.sh
t5302-pack-index.sh fix bsd shell negation 17 years ago
t5304-prune.sh builtin-prune: protect objects listed on the command line 17 years ago
t5305-include-tag.sh tests: do not use implicit "git diff --no-index" 17 years ago
t5400-send-pack.sh tests: do not use implicit "git diff --no-index" 17 years ago
t5401-update-hooks.sh tests: do not use implicit "git diff --no-index" 17 years ago
t5402-post-merge-hook.sh
t5403-post-checkout-hook.sh
t5404-tracking-branches.sh
t5405-send-pack-rewind.sh
t5406-remote-rejects.sh
t5500-fetch-pack.sh Fix tests breaking when checkout path contains shell metacharacters 17 years ago
t5502-quickfetch.sh
t5503-tagfollow.sh tests: do not use implicit "git diff --no-index" 17 years ago
t5505-remote.sh Make "git-remote prune" delete refs according to fetch specs 17 years ago
t5510-fetch.sh add test_cmp function for test scripts 17 years ago
t5511-refspec.sh add special "matching refs" refspec 17 years ago
t5512-ls-remote.sh Fix tests breaking when checkout path contains shell metacharacters 17 years ago
t5515-fetch-merge-logic.sh tests: do not use implicit "git diff --no-index" 17 years ago
t5516-fetch-push.sh Fix t5516 on cygwin: it does not like double slashes at the beginning of a path 17 years ago
t5517-push-mirror.sh Add a remote.*.mirror configuration option 17 years ago
t5518-fetch-exit-status.sh builtin-fetch.c (store_updated_refs): Honor update_local_ref() return value 17 years ago
t5520-pull.sh pull --rebase: exit early when the working directory is dirty 17 years ago
t5530-upload-pack-error.sh
t5540-http-push.sh
t5600-clone-fail-cleanup.sh
t5601-clone.sh builtin-clone: fix initial checkout 17 years ago
t5700-clone-reference.sh t5700-clone-reference: Quote $U 17 years ago
t5701-clone-local.sh
t5702-clone-options.sh
t5710-info-alternate.sh Fix tests breaking when checkout path contains shell metacharacters 17 years ago
t6000lib.sh Don't use the 'export NAME=value' in the test scripts. 17 years ago
t6001-rev-list-graft.sh
t6002-rev-list-bisect.sh
t6003-rev-list-topo-order.sh
t6004-rev-list-path-optim.sh add test_cmp function for test scripts 17 years ago
t6005-rev-list-count.sh
t6006-rev-list-format.sh tests: do not use implicit "git diff --no-index" 17 years ago
t6007-rev-list-cherry-pick-file.sh
t6008-rev-list-submodule.sh
t6009-rev-list-parent.sh Make revision limiting more robust against occasional bad commit dates 17 years ago
t6010-merge-base.sh Don't use the 'export NAME=value' in the test scripts. 17 years ago
t6020-merge-df.sh
t6021-merge-criss-cross.sh
t6022-merge-rename.sh
t6023-merge-file.sh tests: do not use implicit "git diff --no-index" 17 years ago
t6023-merge-rename-nocruft.sh
t6024-recursive-merge.sh tests: do not use implicit "git diff --no-index" 17 years ago
t6025-merge-symlinks.sh
t6026-merge-attr.sh
t6027-merge-binary.sh add test_cmp function for test scripts 17 years ago
t6028-merge-up-to-date.sh
t6029-merge-subtree.sh tests: do not use implicit "git diff --no-index" 17 years ago
t6030-bisect-porcelain.sh bisect: use a detached HEAD to bisect 17 years ago
t6031-merge-recursive.sh Fix t6031 on filesystems without working exec bit 17 years ago
t6032-merge-large-rename.sh add merge.renamelimit config option 17 years ago
t6101-rev-parse-parents.sh
t6120-describe.sh Merge branch 'maint' 17 years ago
t6200-fmt-merge-msg.sh tests: do not use implicit "git diff --no-index" 17 years ago
t6300-for-each-ref.sh tests: do not use implicit "git diff --no-index" 17 years ago
t7001-mv.sh
t7002-grep.sh
t7003-filter-branch.sh Merge 1.5.5.3 in 17 years ago
t7004-tag.sh tests: do not use implicit "git diff --no-index" 17 years ago
t7005-editor.sh test suite: remove useless TERM cruft in "t7005-editor.sh" 17 years ago
t7010-setup.sh Fix tests breaking when checkout path contains shell metacharacters 17 years ago
t7101-reset.sh
t7102-reset.sh tests: do not use implicit "git diff --no-index" 17 years ago
t7103-reset-bare.sh
t7104-reset.sh
t7201-co.sh add test_cmp function for test scripts 17 years ago
t7300-clean.sh Fix tests breaking when checkout path contains shell metacharacters 17 years ago
t7400-submodule-basic.sh submodule update: add convenience option --init 17 years ago
t7401-submodule-summary.sh git-submodule summary: --for-status option 17 years ago
t7402-submodule-rebase.sh Ignore dirty submodule states during rebase and stash 17 years ago
t7500-commit.sh
t7501-commit.sh Merge branch 'bd/tests' 17 years ago
t7502-commit.sh t7502: honor SHELL_PATH 17 years ago
t7502-status.sh tests: do not use implicit "git diff --no-index" 17 years ago
t7503-pre-commit-hook.sh
t7504-commit-msg-hook.sh Fix tests breaking when checkout path contains shell metacharacters 17 years ago
t7505-prepare-commit-msg-hook.sh Fix tests breaking when checkout path contains shell metacharacters 17 years ago
t7506-status-submodule.sh is_racy_timestamp(): do not check timestamp for gitlinks 17 years ago
t7600-merge.sh merge, pull: add '--(no-)log' command line option 17 years ago
t7610-mergetool.sh
t7701-repack-unpack-unreachable.sh repack: modify behavior of -A option to leave unreferenced objects unpacked 17 years ago
t8001-annotate.sh
t8002-blame.sh
t8003-blame.sh add test_cmp function for test scripts 17 years ago
t8004-blame.sh
t9001-send-email.sh Merge branch 'jk/maint-send-email-compose' 17 years ago
t9100-git-svn-basic.sh tests: do not use implicit "git diff --no-index" 17 years ago
t9101-git-svn-props.sh Fix tests breaking when checkout path contains shell metacharacters 17 years ago
t9102-git-svn-deep-rmdir.sh Fix tests breaking when checkout path contains shell metacharacters 17 years ago
t9103-git-svn-tracked-directory-removed.sh Fix tests breaking when checkout path contains shell metacharacters 17 years ago
t9104-git-svn-follow-parent.sh Fix tests breaking when checkout path contains shell metacharacters 17 years ago
t9105-git-svn-commit-diff.sh Fix tests breaking when checkout path contains shell metacharacters 17 years ago
t9106-git-svn-commit-diff-clobber.sh Fix tests breaking when checkout path contains shell metacharacters 17 years ago
t9106-git-svn-dcommit-clobber-series.sh Fix tests breaking when checkout path contains shell metacharacters 17 years ago
t9107-git-svn-migrate.sh Fix tests breaking when checkout path contains shell metacharacters 17 years ago
t9108-git-svn-glob.sh Fix tests breaking when checkout path contains shell metacharacters 17 years ago
t9110-git-svn-use-svm-props.sh Fix tests breaking when checkout path contains shell metacharacters 17 years ago
t9111-git-svn-use-svnsync-props.sh Fix tests breaking when checkout path contains shell metacharacters 17 years ago
t9112-git-svn-md5less-file.sh Fix tests breaking when checkout path contains shell metacharacters 17 years ago
t9113-git-svn-dcommit-new-file.sh Fix tests breaking when checkout path contains shell metacharacters 17 years ago
t9114-git-svn-dcommit-merge.sh Fix tests breaking when checkout path contains shell metacharacters 17 years ago
t9115-git-svn-dcommit-funky-renames.sh Merge branch 'bd/tests' 17 years ago
t9116-git-svn-log.sh Fix tests breaking when checkout path contains shell metacharacters 17 years ago
t9117-git-svn-init-clone.sh Fix tests breaking when checkout path contains shell metacharacters 17 years ago
t9118-git-svn-funky-branch-names.sh Fix tests breaking when checkout path contains shell metacharacters 17 years ago
t9119-git-svn-info.sh
t9120-git-svn-clone-with-percent-escapes.sh Fix tests breaking when checkout path contains shell metacharacters 17 years ago
t9121-git-svn-fetch-renamed-dir.sh Fix tests breaking when checkout path contains shell metacharacters 17 years ago
t9122-git-svn-author.sh git-svn: add test for --add-author-from and --use-log-author 17 years ago
t9200-git-cvsexportcommit.sh cvsexportcommit: introduce -W for shared working trees (between Git and CVS) 17 years ago
t9300-fast-import.sh tests: do not use implicit "git diff --no-index" 17 years ago
t9301-fast-export.sh
t9400-git-cvsserver-server.sh Fix tests breaking when checkout path contains shell metacharacters 17 years ago
t9401-git-cvsserver-crlf.sh git-cvsserver: add ability to guess -kb from contents 17 years ago
t9500-gitweb-standalone-no-errors.sh Fix tests breaking when checkout path contains shell metacharacters 17 years ago
t9600-cvsimport.sh tests: do not use implicit "git diff --no-index" 17 years ago
test-lib.sh t/test-lib.sh: resolve symlinks in working directory, for pathname comparisons 17 years ago
test4012.png
test9200a.png
test9200b.png

README

Core GIT Tests
==============

This directory holds many test scripts for core GIT tools. The
first part of this short document describes how to run the tests
and read their output.

When fixing the tools or adding enhancements, you are strongly
encouraged to add tests in this directory to cover what you are
trying to fix or enhance. The later part of this short document
describes how your test scripts should be organized.


Running Tests
-------------

The easiest way to run tests is to say "make". This runs all
the tests.

*** t0000-basic.sh ***
* ok 1: .git/objects should be empty after git-init in an empty repo.
* ok 2: .git/objects should have 256 subdirectories.
* ok 3: git-update-index without --add should fail adding.
...
* ok 23: no diff after checkout and git-update-index --refresh.
* passed all 23 test(s)
*** t0100-environment-names.sh ***
* ok 1: using old names should issue warnings.
* ok 2: using old names but having new names should not issue warnings.
...

Or you can run each test individually from command line, like
this:

$ sh ./t3001-ls-files-killed.sh
* ok 1: git-update-index --add to add various paths.
* ok 2: git-ls-files -k to show killed files.
* ok 3: validate git-ls-files -k output.
* passed all 3 test(s)

You can pass --verbose (or -v), --debug (or -d), and --immediate
(or -i) command line argument to the test.

--verbose::
This makes the test more verbose. Specifically, the
command being run and their output if any are also
output.

--debug::
This may help the person who is developing a new test.
It causes the command defined with test_debug to run.

--immediate::
This causes the test to immediately exit upon the first
failed test.


Naming Tests
------------

The test files are named as:

tNNNN-commandname-details.sh

where N is a decimal digit.

First digit tells the family:

0 - the absolute basics and global stuff
1 - the basic commands concerning database
2 - the basic commands concerning the working tree
3 - the other basic commands (e.g. ls-files)
4 - the diff commands
5 - the pull and exporting commands
6 - the revision tree commands (even e.g. merge-base)
7 - the porcelainish commands concerning the working tree
8 - the porcelainish commands concerning forensics
9 - the git tools

Second digit tells the particular command we are testing.

Third digit (optionally) tells the particular switch or group of switches
we are testing.

If you create files under t/ directory (i.e. here) that is not
the top-level test script, never name the file to match the above
pattern. The Makefile here considers all such files as the
top-level test script and tries to run all of them. A care is
especially needed if you are creating a common test library
file, similar to test-lib.sh, because such a library file may
not be suitable for standalone execution.


Writing Tests
-------------

The test script is written as a shell script. It should start
with the standard "#!/bin/sh" with copyright notices, and an
assignment to variable 'test_description', like this:

#!/bin/sh
#
# Copyright (c) 2005 Junio C Hamano
#

test_description='xxx test (option --frotz)

This test registers the following structure in the cache
and tries to run git-ls-files with option --frotz.'


Source 'test-lib.sh'
--------------------

After assigning test_description, the test script should source
test-lib.sh like this:

. ./test-lib.sh

This test harness library does the following things:

- If the script is invoked with command line argument --help
(or -h), it shows the test_description and exits.

- Creates an empty test directory with an empty .git/objects
database and chdir(2) into it. This directory is 't/trash directory'
if you must know, but I do not think you care.

- Defines standard test helper functions for your scripts to
use. These functions are designed to make all scripts behave
consistently when command line arguments --verbose (or -v),
--debug (or -d), and --immediate (or -i) is given.


End with test_done
------------------

Your script will be a sequence of tests, using helper functions
from the test harness library. At the end of the script, call
'test_done'.


Test harness library
--------------------

There are a handful helper functions defined in the test harness
library for your script to use.

- test_expect_success <message> <script>

This takes two strings as parameter, and evaluates the
<script>. If it yields success, test is considered
successful. <message> should state what it is testing.

Example:

test_expect_success \
'git-write-tree should be able to write an empty tree.' \
'tree=$(git-write-tree)'

- test_expect_failure <message> <script>

This is NOT the opposite of test_expect_success, but is used
to mark a test that demonstrates a known breakage. Unlike
the usual test_expect_success tests, which say "ok" on
success and "FAIL" on failure, this will say "FIXED" on
success and "still broken" on failure. Failures from these
tests won't cause -i (immediate) to stop.

- test_debug <script>

This takes a single argument, <script>, and evaluates it only
when the test script is started with --debug command line
argument. This is primarily meant for use during the
development of a new test script.

- test_done

Your test script must have test_done at the end. Its purpose
is to summarize successes and failures in the test script and
exit with an appropriate error code.


Tips for Writing Tests
----------------------

As with any programming projects, existing programs are the best
source of the information. However, do _not_ emulate
t0000-basic.sh when writing your tests. The test is special in
that it tries to validate the very core of GIT. For example, it
knows that there will be 256 subdirectories under .git/objects/,
and it knows that the object ID of an empty tree is a certain
40-byte string. This is deliberately done so in t0000-basic.sh
because the things the very basic core test tries to achieve is
to serve as a basis for people who are changing the GIT internal
drastically. For these people, after making certain changes,
not seeing failures from the basic test _is_ a failure. And
such drastic changes to the core GIT that even changes these
otherwise supposedly stable object IDs should be accompanied by
an update to t0000-basic.sh.

However, other tests that simply rely on basic parts of the core
GIT working properly should not have that level of intimate
knowledge of the core GIT internals. If all the test scripts
hardcoded the object IDs like t0000-basic.sh does, that defeats
the purpose of t0000-basic.sh, which is to isolate that level of
validation in one place. Your test also ends up needing
updating when such a change to the internal happens, so do _not_
do it and leave the low level of validation to t0000-basic.sh.