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Add two functions that allow to replace and remove strings contained in
the strvec. This will be used by a subsequent commit that refactors
git-mv(1).
While at it, add a bunch of unit tests that cover both old and new
functionality.
Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The trailer API has been reshuffled a bit.
* la/hide-trailer-info:
trailer unit tests: inspect iterator contents
trailer: document parse_trailers() usage
trailer: retire trailer_info_get() from API
trailer: make trailer_info struct private
trailer: make parse_trailers() return trailer_info pointer
interpret-trailers: access trailer_info with new helpers
sequencer: use the trailer iterator
trailer: teach iterator about non-trailer lines
trailer: add unit tests for trailer iterator
Makefile: sort UNIT_TEST_PROGRAMS
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In the recent codebase update (8bf6fbd (Merge branch
'js/doc-unit-tests', 2023-12-09)), a new unit testing framework was
merged, providing a standardized approach for testing C code. Prior to
this update, some unit tests relied on the test helper mechanism,
lacking a dedicated unit testing framework. It's more natural to perform
these unit tests using the new unit test framework.
Let's migrate the unit tests for strcmp-offset functionality from the
legacy approach using the test-tool command `test-tool strcmp-offset` in
helper/test-strcmp-offset.c to the new unit testing framework
(t/unit-tests/test-lib.h).
The migration involves refactoring the tests to utilize the testing
macros provided by the framework (TEST() and check_*()).
Helped-by: Patrick Steinhardt <ps@pks.im>
Mentored-by: Christian Couder <chriscool@tuxfamily.org>
Mentored-by: Kaartic Sivaraam <kaartic.sivaraam@gmail.com>
Co-authored-by: Achu Luma <ach.lumap@gmail.com>
Signed-off-by: Achu Luma <ach.lumap@gmail.com>
Signed-off-by: Ghanshyam Thakkar <shyamthakkar001@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The "test-tool" has been taught to run testsuite tests in parallel,
bypassing the need to use the "prove" tool.
* js/unit-test-suite-runner:
cmake: let `test-tool` run the unit tests, too
ci: use test-tool as unit test runner on Windows
t/Makefile: run unit tests alongside shell tests
unit tests: add rule for running with test-tool
test-tool run-command testsuite: support unit tests
test-tool run-command testsuite: remove hardcoded filter
test-tool run-command testsuite: get shell from env
t0080: turn t-basic unit test into a helper
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While t/unit-tests/t-basic.c uses the unit-test framework added in
e137fe3b29 (unit tests: add TAP unit test framework, 2023-11-09), it is
not a true unit test in that it intentionally fails in order to exercise
various codepaths in the unit-test framework. Thus, we intentionally
exclude it when running unit tests through the various t/Makefile
targets. Instead, it is executed by t0080-unit-test-output.sh, which
verifies its output follows the TAP format expected for the various
pass, skip, or fail cases.
As such, it makes more sense for t-basic to be a helper item for
t0080-unit-test-output.sh, so let's move it to
t/helper/test-example-tap.c and adjust Makefiles as necessary.
Signed-off-by: Josh Steadmon <steadmon@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Previously we only checked whether we would iterate a certain (expected)
number of times.
Also check the parsed "raw", "key" and "val" fields during each
iteration.
Helped-by: Junio C Hamano <gitster@pobox.com>
Signed-off-by: Linus Arver <linus@ucla.edu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Previously the iterator did not iterate over non-trailer lines. This was
somewhat unfortunate, because trailer blocks could have non-trailer
lines in them since 146245063e (trailer: allow non-trailers in trailer
block, 2016-10-21), which was before the iterator was created in
f0939a0eb1 (trailer: add interface for iterating over commit trailers,
2020-09-27).
So if trailer API users wanted to iterate over all lines in a trailer
block (including non-trailer lines), they could not use the iterator and
were forced to use the lower-level trailer_info struct directly (which
provides a raw string array that includes all lines in the trailer
block).
Change the iterator's behavior so that we also iterate over non-trailer
lines, instead of skipping over them. The new "raw" member of the
iterator allows API users to access previously inaccessible non-trailer
lines. Reword the variable "trailer" to just "line" because this
variable can now hold both trailer lines _and_ non-trailer lines.
The new "raw" member is important because anyone currently not using the
iterator is using trailer_info's raw string array directly to access
lines to check what the combined key + value looks like. If we didn't
provide a "raw" member here, iterator users would have to re-construct
the unparsed line by concatenating the key and value back together again
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Test the number of trailers found by the iterator (to be more precise,
the parsing mechanism which the iterator just walks over) when given
some arbitrary log message.
We test the iterator because it is a public interface function exposed
by the trailer API (we generally don't want to test internal
implementation details which are, unlike the API, subject to drastic
changes).
Signed-off-by: Linus Arver <linus@ucla.edu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Test names like "basic" are mentioned seven times in the code (ignoring
case): Twice when defining the input and result macros, thrice when
defining the test function, and twice again when calling it. Reduce
that to a single time by using compound literals to pass the input and
result arrays via TEST_INPUT to test_prio_queue().
Signed-off-by: René Scharfe <l.s.r@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Avoid reading past the end of the "result" array, which could otherwise
happen if the prio-queue were to yield more items than were put into it
due to an implementation bug, or if the array has not enough entries due
to a test bug.
Also check at the end whether all "result" entries were consumed, which
would not be the case if the prio-queue forgot some entries or the test
definition contained too many.
Signed-off-by: René Scharfe <l.s.r@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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If we get an unexpected result, the prio-queue unit test reports it like
this:
# check "result[j++] == show(get)" failed at t/unit-tests/t-prio-queue.c:43
# left: 5
# right: 1
# failed at result[] index 0
That last line repeats "failed" and "result" from the first line.
Shorten it to resemble a similar one in t-ctype and also remove the
incrementation from the first line to avoid possible distractions from
the message of which comparison went wrong where:
# check "result[j] == show(get)" failed at t/unit-tests/t-prio-queue.c:43
# left: 5
# right: 1
# j: 0
Signed-off-by: René Scharfe <l.s.r@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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TEST_CTYPE_FUNC defines a function for testing a character classifier,
TEST_CHAR_CLASS calls it, causing the class name to be mentioned twice.
Avoid the need to define a class-specific function by letting
TEST_CHAR_CLASS do all the work. This is done by using the internal
functions test__run_begin() and test__run_end(), but they do exist to be
used in test macros after all.
Alternatively we could unroll the loop to provide a very long expression
that tests all 256 characters and EOF and hand that to TEST, but that
seems awkward and hard to read.
No change of behavior or output intended.
Signed-off-by: René Scharfe <l.s.r@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The unit test reports misclassified characters like this:
# check "isdigit(i) == !!memchr("123456789", i, len)" failed at t/unit-tests/t-ctype.c:36
# left: 1
# right: 0
# i: 0x30
Reduce the indent of i to put its colon directly below the ones in the
preceding lines for consistency.
Signed-off-by: René Scharfe <l.s.r@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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EOF is not a member of any character class. If a classifier function
returns a non-zero result for it, presumably by mistake, then the unit
test check reports:
# check "!iseof(EOF)" failed at t/unit-tests/t-ctype.c:53
# i: 0xffffffff (EOF)
The numeric value of EOF is not particularly interesting in this
context. Stop printing the second line.
Signed-off-by: René Scharfe <l.s.r@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Replace the custom function is_in() for looking up a character in the
specification string with memchr(3) and sizeof. This is shorter,
simpler and allows NUL anywhere in the string, which may come in handy
if we ever want to support more character classes that contain it.
Getting the string size using sizeof only works in a macro and with a
string constant. Use ARRAY_SIZE and compile-time checks to make sure we
are not passed a string pointer.
Signed-off-by: René Scharfe <l.s.r@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The mechanism to report the filename in the source code, used by
the unit-test machinery, assumed that the compiler expanded __FILE__
to the path to the source given to the $(CC), but some compilers
give full path, breaking the output. This has been corrected.
* jc/unit-tests-make-relative-fix:
unit-tests: do show relative file paths on non-Windows, too
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There are compilers other than Visual C that want to show absolute
paths. Generalize the helper introduced by a2c5e294 (unit-tests: do
show relative file paths, 2023-09-25) so that it can also work with
a path that uses slash as the directory separator, and becomes
almost no-op once one-time preparation finds out that we are using a
compiler that already gives relative paths. Incidentally, this also
should do the right thing on Windows with a compiler that shows
relative paths but with backslash as the directory separator (if
such a thing exists and is used to build git).
Reported-by: Randall S. Becker <rsbecker@nexbridge.com>
Helped-by: Phillip Wood <phillip.wood@dunelm.org.uk>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The priority queue test has been migrated to the unit testing
framework.
* cp/unit-test-prio-queue:
tests: move t0009-prio-queue.sh to the new unit testing framework
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Move test-ctype helper to the unit-test framework.
* al/unit-test-ctype:
unit-tests: rewrite t/helper/test-ctype.c as a unit test
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t/t0009-prio-queue.sh along with t/helper/test-prio-queue.c unit
tests Git's implementation of a priority queue. Migrate the
test over to the new unit testing framework to simplify debugging
and reduce test run-time. Refactor the required logic and add
a new test case in addition to porting over the original ones in
shell.
Signed-off-by: Chandra Pratap <chandrapratap3519@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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In the recent codebase update (8bf6fbd00d (Merge branch
'js/doc-unit-tests', 2023-12-09)), a new unit testing framework was
merged, providing a standardized approach for testing C code. Prior to
this update, some unit tests relied on the test helper mechanism,
lacking a dedicated unit testing framework. It's more natural to perform
these unit tests using the new unit test framework.
This commit migrates the unit tests for C character classification
functions (isdigit(), isspace(), etc) from the legacy approach
using the test-tool command `test-tool ctype` in t/helper/test-ctype.c
to the new unit testing framework (t/unit-tests/test-lib.h).
The migration involves refactoring the tests to utilize the testing
macros provided by the framework (TEST() and check_*()).
Mentored-by: Christian Couder <chriscool@tuxfamily.org>
Helped-by: René Scharfe <l.s.r@web.de>
Helped-by: Phillip Wood <phillip.wood123@gmail.com>
Helped-by: Taylor Blau <me@ttaylorr.com>
Signed-off-by: Achu Luma <ach.lumap@gmail.com>
Acked-by: Phillip Wood <phillip.wood123@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Memory pool allocations that require a new block and would fill at
least half of it are handled specially. Before 158dfeff3d (mem-pool:
add life cycle management functions, 2018-07-02) they used to be
allocated outside of the pool. This patch made mem_pool_alloc() create
a bespoke block instead, to allow releasing it when the pool gets
discarded.
Unfortunately mem_pool_alloc() returns a pointer to the start of such a
bespoke block, i.e. to the struct mp_block at its top. When the caller
writes to it, the management information gets corrupted. This affects
mem_pool_discard() and -- if there are no other blocks in the pool --
also mem_pool_alloc().
Return the payload pointer of bespoke blocks, just like for smaller
allocations, to protect the management struct.
Also update next_free to mark the block as full. This is only strictly
necessary for the first allocated block, because subsequent ones are
inserted after the current block and never considered for further
allocations, but it's easier to just do it in all cases.
Add a basic unit test to demonstrate the issue by using
mem_pool_calloc() with a tiny block size, which forces the creation of a
bespoke block.
Helped-by: Phillip Wood <phillip.wood123@gmail.com>
Signed-off-by: René Scharfe <l.s.r@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Visual C interpolates `__FILE__` with the absolute _Windows_ path of
the source file. GCC interpolates it with the relative path, and the
tests even verify that.
So let's make sure that the unit tests only emit such paths.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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This patch contains an implementation for writing unit tests with TAP
output. Each test is a function that contains one or more checks. The
test is run with the TEST() macro and if any of the checks fail then the
test will fail. A complete program that tests STRBUF_INIT would look
like
#include "test-lib.h"
#include "strbuf.h"
static void t_static_init(void)
{
struct strbuf buf = STRBUF_INIT;
check_uint(buf.len, ==, 0);
check_uint(buf.alloc, ==, 0);
check_char(buf.buf[0], ==, '\0');
}
int main(void)
{
TEST(t_static_init(), "static initialization works);
return test_done();
}
The output of this program would be
ok 1 - static initialization works
1..1
If any of the checks in a test fail then they print a diagnostic message
to aid debugging and the test will be reported as failing. For example a
failing integer check would look like
# check "x >= 3" failed at my-test.c:102
# left: 2
# right: 3
not ok 1 - x is greater than or equal to three
There are a number of check functions implemented so far. check() checks
a boolean condition, check_int(), check_uint() and check_char() take two
values to compare and a comparison operator. check_str() will check if
two strings are equal. Custom checks are simple to implement as shown in
the comments above test_assert() in test-lib.h.
Tests can be skipped with test_skip() which can be supplied with a
reason for skipping which it will print. Tests can print diagnostic
messages with test_msg(). Checks that are known to fail can be wrapped
in TEST_TODO().
There are a couple of example test programs included in this
patch. t-basic.c implements some self-tests and demonstrates the
diagnostic output for failing test. The output of this program is
checked by t0080-unit-test-output.sh. t-strbuf.c shows some example
unit tests for strbuf.c
The unit tests will be built as part of the default "make all" target,
to avoid bitrot. If you wish to build just the unit tests, you can run
"make build-unit-tests". To run the tests, you can use "make unit-tests"
or run the test binaries directly, as in "./t/unit-tests/bin/t-strbuf".
Signed-off-by: Phillip Wood <phillip.wood@dunelm.org.uk>
Signed-off-by: Josh Steadmon <steadmon@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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