(or -i) command line argument to the test, or by setting GIT_TEST_OPTS
appropriately before running "make".
+-v::
--verbose::
This makes the test more verbose. Specifically, the
command being run and their output if any are also
output.
+--verbose-only=<pattern>::
+ Like --verbose, but the effect is limited to tests with
+ numbers matching <pattern>. The number matched against is
+ simply the running count of the test within the file.
+
+-x::
+ Turn on shell tracing (i.e., `set -x`) during the tests
+ themselves. Implies `--verbose`. Note that in non-bash shells,
+ this can cause failures in some tests which redirect and test
+ the output of shell functions. Use with caution.
+
+-d::
--debug::
This may help the person who is developing a new test.
It causes the command defined with test_debug to run.
failed tests so that you can inspect its contents after
the test finished.
+-i::
--immediate::
This causes the test to immediately exit upon the first
- failed test.
+ failed test. Cleanup commands requested with
+ test_when_finished are not executed if the test failed,
+ in order to keep the state for inspection by the tester
+ to diagnose the bug.
+-l::
--long-tests::
This causes additional long-running tests to be run (where
available), for more exhaustive testing.
---valgrind::
- Execute all Git binaries with valgrind and exit with status
- 126 on errors (just like regular tests, this will only stop
- the test script when running under -i). Valgrind errors
- go to stderr, so you might want to pass the -v option, too.
+-r::
+--run=<test-selector>::
+ Run only the subset of tests indicated by
+ <test-selector>. See section "Skipping Tests" below for
+ <test-selector> syntax.
+
+--valgrind=<tool>::
+ Execute all Git binaries under valgrind tool <tool> and exit
+ with status 126 on errors (just like regular tests, this will
+ only stop the test script when running under -i).
Since it makes no sense to run the tests with --valgrind and
not see any output, this option implies --verbose. For
convenience, it also implies --tee.
- Note that valgrind is run with the option --leak-check=no,
+ <tool> defaults to 'memcheck', just like valgrind itself.
+ Other particularly useful choices include 'helgrind' and
+ 'drd', but you may use any tool recognized by your valgrind
+ installation.
+
+ As a special case, <tool> can be 'memcheck-fast', which uses
+ memcheck but disables --track-origins. Use this if you are
+ running tests in bulk, to see if there are _any_ memory
+ issues.
+
+ Note that memcheck is run with the option --leak-check=no,
as the git process is short-lived and some errors are not
interesting. In order to run a single command under the same
conditions manually, you should set GIT_VALGRIND to point to
the 't/valgrind/' directory and use the commands under
't/valgrind/bin/'.
+--valgrind-only=<pattern>::
+ Like --valgrind, but the effect is limited to tests with
+ numbers matching <pattern>. The number matched against is
+ simply the running count of the test within the file.
+
--tee::
In addition to printing the test output to the terminal,
write it to files named 't/test-results/$TEST_NAME.out'.
Using this option with a RAM-based filesystem (such as tmpfs)
can massively speed up the test suite.
+--chain-lint::
+--no-chain-lint::
+ If --chain-lint is enabled, the test harness will check each
+ test to make sure that it properly "&&-chains" all commands (so
+ that a failure in the middle does not go unnoticed by the final
+ exit code of the test). This check is performed in addition to
+ running the tests themselves. You may also enable or disable
+ this feature by setting the GIT_TEST_CHAIN_LINT environment
+ variable to "1" or "0", respectively.
+
You can also set the GIT_TEST_INSTALLED environment variable to
the bindir of an existing git installation to test that installation.
You still need to have built this git sandbox, from which various
test, or t[0-9]{4} followed by ".$number" to say which
particular test to skip.
-Note that some tests in the existing test suite rely on previous
-test item, so you cannot arbitrarily disable one and expect the
-remainder of test to check what the test originally was intended
-to check.
+For an individual test suite --run could be used to specify that
+only some tests should be run or that some tests should be
+excluded from a run.
+
+The argument for --run is a list of individual test numbers or
+ranges with an optional negation prefix that define what tests in
+a test suite to include in the run. A range is two numbers
+separated with a dash and matches a range of tests with both ends
+been included. You may omit the first or the second number to
+mean "from the first test" or "up to the very last test"
+respectively.
+
+Optional prefix of '!' means that the test or a range of tests
+should be excluded from the run.
+
+If --run starts with an unprefixed number or range the initial
+set of tests to run is empty. If the first item starts with '!'
+all the tests are added to the initial set. After initial set is
+determined every test number or range is added or excluded from
+the set one by one, from left to right.
+
+Individual numbers or ranges could be separated either by a space
+or a comma.
+
+For example, to run only tests up to a specific test (21), one
+could do this:
+
+ $ sh ./t9200-git-cvsexport-commit.sh --run='1-21'
+
+or this:
+
+ $ sh ./t9200-git-cvsexport-commit.sh --run='-21'
+
+Common case is to run several setup tests (1, 2, 3) and then a
+specific test (21) that relies on that setup:
+
+ $ sh ./t9200-git-cvsexport-commit.sh --run='1 2 3 21'
+
+or:
+
+ $ sh ./t9200-git-cvsexport-commit.sh --run=1,2,3,21
+
+or:
+
+ $ sh ./t9200-git-cvsexport-commit.sh --run='-3 21'
+
+As noted above, the test set is built going though items left to
+right, so this:
+
+ $ sh ./t9200-git-cvsexport-commit.sh --run='1-4 !3'
+
+will run tests 1, 2, and 4. Items that comes later have higher
+precedence. It means that this:
+
+ $ sh ./t9200-git-cvsexport-commit.sh --run='!3 1-4'
+
+would just run tests from 1 to 4, including 3.
+
+You may use negation with ranges. The following will run all
+test in the test suite except from 7 up to 11:
+
+ $ sh ./t9200-git-cvsexport-commit.sh --run='!7-11'
+
+Some tests in a test suite rely on the previous tests performing
+certain actions, specifically some tests are designated as
+"setup" test, so you cannot _arbitrarily_ disable one test and
+expect the rest to function correctly.
+
+--run is mostly useful when you want to focus on a specific test
+and know what setup is needed for it. Or when you want to run
+everything up to a certain test.
Naming Tests
Use test_done instead if you need to stop the tests early (see
"Skipping tests" below).
+ - use '! git cmd' when you want to make sure the git command exits
+ with failure in a controlled way by calling "die()". Instead,
+ use 'test_must_fail git cmd'. This will signal a failure if git
+ dies in an unexpected way (e.g. segfault).
+
+ On the other hand, don't use test_must_fail for running regular
+ platform commands; just use '! cmd'. We are not in the business
+ of verifying that the world given to us sanely works.
+
+ - use perl without spelling it as "$PERL_PATH". This is to help our
+ friends on Windows where the platform Perl often adds CR before
+ the end of line, and they bundle Git with a version of Perl that
+ does not do so, whose path is specified with $PERL_PATH. Note that we
+ provide a "perl" function which uses $PERL_PATH under the hood, so
+ you do not need to worry when simply running perl in the test scripts
+ (but you do, for example, on a shebang line or in a sub script
+ created via "write_script").
+
+ - use sh without spelling it as "$SHELL_PATH", when the script can
+ be misinterpreted by broken platform shell (e.g. Solaris).
+
+ - chdir around in tests. It is not sufficient to chdir to
+ somewhere and then chdir back to the original location later in
+ the test, as any intermediate step can fail and abort the test,
+ causing the next test to start in an unexpected directory. Do so
+ inside a subshell if necessary.
+
- Break the TAP output
The raw output from your test may be interpreted by a TAP harness. TAP
of the test_* functions (see the "Test harness library" section
below), e.g.:
- test_expect_success PERL 'I need Perl' "
- '$PERL_PATH' -e 'hlagh() if unf_unf()'
- "
+ test_expect_success PERL 'I need Perl' '
+ perl -e "hlagh() if unf_unf()"
+ '
The advantage of skipping tests like this is that platforms that don't
have the PERL and other optional dependencies get an indication of how
argument. This is primarily meant for use during the
development of a new test script.
+ - debug <git-command>
+
+ Run a git command inside a debugger. This is primarily meant for
+ use when debugging a failing test script.
+
- test_done
Your test script must have test_done at the end. Its purpose
test_external \
'GitwebCache::*FileCache*' \
- "$PERL_PATH" "$TEST_DIRECTORY"/t9503/test_cache_interface.pl
+ perl "$TEST_DIRECTORY"/t9503/test_cache_interface.pl
If the test is outputting its own TAP you should set the
test_external_has_tap variable somewhere before calling the first
test_external_without_stderr \
'Perl API' \
- "$PERL_PATH" "$TEST_DIRECTORY"/t9700/test.pl
+ perl "$TEST_DIRECTORY"/t9700/test.pl
- test_expect_code <exit-code> <command>
...
'
+ - test_write_lines <lines>
+
+ Write <lines> on standard output, one line per argument.
+ Useful to prepare multi-line files in a compact form.
+
+ Example:
+
+ test_write_lines a b c d e f g >foo
+
+ Is a more compact equivalent of:
+ cat >foo <<-EOF
+ a
+ b
+ c
+ d
+ e
+ f
+ g
+ EOF
+
+
- test_pause
This command is useful for writing and debugging tests and must be
test_cmp expected actual
'
+ - test_ln_s_add <path1> <path2>
+
+ This function helps systems whose filesystem does not support symbolic
+ links. Use it to add a symbolic link entry to the index when it is not
+ important that the file system entry is a symbolic link, i.e., instead
+ of the sequence
+
+ ln -s foo bar &&
+ git add bar
+
+ Sometimes it is possible to split a test in a part that does not need
+ the symbolic link in the file system and a part that does; then only
+ the latter part need be protected by a SYMLINKS prerequisite (see below).
+
Prerequisites
-------------
library" section above and the "test_have_prereq" function for how to
use these, and "test_set_prereq" for how to define your own.
- - PERL & PYTHON
+ - PYTHON
+
+ Git wasn't compiled with NO_PYTHON=YesPlease. Wrap any tests that
+ need Python with this.
+
+ - PERL
+
+ Git wasn't compiled with NO_PERL=YesPlease.
- Git wasn't compiled with NO_PERL=YesPlease or
- NO_PYTHON=YesPlease. Wrap any tests that need Perl or Python in
- these.
+ Even without the PERL prerequisite, tests can assume there is a
+ usable perl interpreter at $PERL_PATH, though it need not be
+ particularly modern.
- POSIXPERM
The process retains the same pid across exec(2). See fb9a2bea for
details.
+ - PIPE
+
+ The filesystem we're on supports creation of FIFOs (named pipes)
+ via mkfifo(1).
+
- SYMLINKS
The filesystem we're on supports symbolic links. E.g. a FAT
Git was compiled with USE_LIBPCRE=YesPlease. Wrap any tests
that use git-grep --perl-regexp or git-grep -P in these.
+ - CASE_INSENSITIVE_FS
+
+ Test is run on a case insensitive file system.
+
+ - UTF8_NFD_TO_NFC
+
+ Test is run on a filesystem which converts decomposed utf-8 (nfd)
+ to precomposed utf-8 (nfc).
+
Tips for Writing Tests
----------------------
projects / platform / upstream / git.git / blobdiff