summaryrefslogtreecommitdiff
path: root/t/README
diff options
context:
space:
mode:
Diffstat (limited to 't/README')
-rw-r--r--t/README133
1 files changed, 121 insertions, 12 deletions
diff --git a/t/README b/t/README
index 2167125008..52c77ae936 100644
--- a/t/README
+++ b/t/README
@@ -71,6 +71,7 @@ You can pass --verbose (or -v), --debug (or -d), and --immediate
(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
@@ -81,6 +82,7 @@ appropriately before running "make".
numbers matching <pattern>. The number matched against is
simply the running count of the test within the file.
+-d::
--debug::
This may help the person who is developing a new test.
It causes the command defined with test_debug to run.
@@ -89,6 +91,7 @@ appropriately before running "make".
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. Cleanup commands requested with
@@ -96,10 +99,17 @@ appropriately before running "make".
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.
+-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
@@ -187,10 +197,77 @@ and either can match the "t[0-9]{4}" part to skip the whole
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
+precendence. 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
@@ -340,7 +417,11 @@ Don't:
- 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.
+ 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).
@@ -387,7 +468,7 @@ of the test_* functions (see the "Test harness library" section
below), e.g.:
test_expect_success PERL 'I need Perl' '
- "$PERL_PATH" -e "hlagh() if unf_unf()"
+ perl -e "hlagh() if unf_unf()"
'
The advantage of skipping tests like this is that platforms that don't
@@ -520,7 +601,7 @@ library for your script to use.
test_external \
'GitwebCache::*FileCache*' \
- "$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
@@ -536,7 +617,7 @@ library for your script to use.
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>
@@ -592,6 +673,27 @@ library for your script to use.
...
'
+ - 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
@@ -629,11 +731,18 @@ See the prereq argument to the test_* functions in the "Test harness
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