git/t/unit-tests/t-example-decorate.c
Ghanshyam Thakkar 456b4dce4c t/: migrate helper/test-example-decorate to the unit testing framework
helper/test-example-decorate.c along with t9004-example.sh provide
an example of how to use the functions in decorate.h (which provides
a data structure that associates Git objects to void pointers) and
also test their output.

Migrate them to the new unit testing framework for better debugging
and runtime performance.

Mentored-by: Christian Couder <chriscool@tuxfamily.org>
Mentored-by: Kaartic Sivaraam <kaartic.sivaraam@gmail.com>
Signed-off-by: Ghanshyam Thakkar <shyamthakkar001@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2024-05-28 13:53:36 -07:00

81 lines
2.5 KiB
C

#include "test-lib.h"
#include "object.h"
#include "decorate.h"
#include "repository.h"
struct test_vars {
struct object *one, *two, *three;
struct decoration n;
int decoration_a, decoration_b;
};
static void t_add(struct test_vars *vars)
{
void *ret = add_decoration(&vars->n, vars->one, &vars->decoration_a);
if (!check(ret == NULL))
test_msg("when adding a brand-new object, NULL should be returned");
ret = add_decoration(&vars->n, vars->two, NULL);
if (!check(ret == NULL))
test_msg("when adding a brand-new object, NULL should be returned");
}
static void t_readd(struct test_vars *vars)
{
void *ret = add_decoration(&vars->n, vars->one, NULL);
if (!check(ret == &vars->decoration_a))
test_msg("when readding an already existing object, existing decoration should be returned");
ret = add_decoration(&vars->n, vars->two, &vars->decoration_b);
if (!check(ret == NULL))
test_msg("when readding an already existing object, existing decoration should be returned");
}
static void t_lookup(struct test_vars *vars)
{
void *ret = lookup_decoration(&vars->n, vars->one);
if (!check(ret == NULL))
test_msg("lookup should return added declaration");
ret = lookup_decoration(&vars->n, vars->two);
if (!check(ret == &vars->decoration_b))
test_msg("lookup should return added declaration");
ret = lookup_decoration(&vars->n, vars->three);
if (!check(ret == NULL))
test_msg("lookup for unknown object should return NULL");
}
static void t_loop(struct test_vars *vars)
{
int i, objects_noticed = 0;
for (i = 0; i < vars->n.size; i++) {
if (vars->n.entries[i].base)
objects_noticed++;
}
if (!check_int(objects_noticed, ==, 2))
test_msg("should have 2 objects");
}
int cmd_main(int argc UNUSED, const char **argv UNUSED)
{
struct object_id one_oid = { { 1 } }, two_oid = { { 2 } }, three_oid = { { 3 } };
struct test_vars vars = { 0 };
vars.one = lookup_unknown_object(the_repository, &one_oid);
vars.two = lookup_unknown_object(the_repository, &two_oid);
vars.three = lookup_unknown_object(the_repository, &three_oid);
TEST(t_add(&vars),
"Add 2 objects, one with a non-NULL decoration and one with a NULL decoration.");
TEST(t_readd(&vars),
"When re-adding an already existing object, the old decoration is returned.");
TEST(t_lookup(&vars),
"Lookup returns the added declarations, or NULL if the object was never added.");
TEST(t_loop(&vars), "The user can also loop through all entries.");
clear_decoration(&vars.n, NULL);
return test_done();
}