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Unit-test framework has learned a simple control structure to allow
embedding test statements in-line instead of having to create a new
function to contain them.
* rs/unit-tests-test-run:
t-strvec: use if_test
t-reftable-basics: use if_test
t-ctype: use if_test
unit-tests: add if_test
unit-tests: show location of checks outside of tests
t0080: use here-doc test body
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The macro TEST only allows defining a test that consists of a single
expression. Add a new macro, if_test, which provides a way to define
unit tests that are made up of one or more statements.
if_test allows defining self-contained tests en bloc, a bit like
test_expect_success does for regular tests. It acts like a conditional;
the test body is executed if test_skip_all() had not been called before.
Signed-off-by: René Scharfe <l.s.r@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The comment surrounding check_pointer_eq() should explain about what
this function does instead of explaining check_int(). Correct this.
Signed-off-by: Kousik Sanagavarapu <five231003@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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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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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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