t/core/object_test.c

   1 /*
   2  * SysDB - t/core/object_test.c
   3  * Copyright (C) 2013 Sebastian 'tokkee' Harl <sh@tokkee.org>
   4  * All rights reserved.
   5  *
   6  * Redistribution and use in source and binary forms, with or without
   7  * modification, are permitted provided that the following conditions
   8  * are met:
   9  * 1. Redistributions of source code must retain the above copyright
  10  *    notice, this list of conditions and the following disclaimer.
  11  * 2. Redistributions in binary form must reproduce the above copyright
  12  *    notice, this list of conditions and the following disclaimer in the
  13  *    documentation and/or other materials provided with the distribution.
  14  *
  15  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  16  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
  17  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  18  * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR
  19  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
  20  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
  21  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
  22  * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
  23  * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
  24  * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
  25  * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  26  */
  27
  28 #include "core/object.h"
  29 #include "libsysdb_test.h"
  30
  31 #include <check.h>
  32
  33 /*
  34  * private data types
  35  */
  36
  37 static int init_noop_called = 0;
  38 static int init_noop_retval = 0;
  39 static int
  40 obj_init_noop(sdb_object_t *obj, va_list __attribute__((unused)) ap)
  41 {
  42         ++init_noop_called;
  43         fail_unless(obj != NULL, "obj init function: received obj == NULL");
  44         return init_noop_retval;
  45 } /* obj_init_noop */
  46
  47 static int destroy_noop_called = 0;
  48 static void
  49 obj_destroy_noop(sdb_object_t *obj)
  50 {
  51         ++destroy_noop_called;
  52         fail_unless(obj != NULL, "obj destroy function: received obj == NULL");
  53 } /* obj_destroy_noop */
  54
  55 struct noop {
  56         sdb_object_t super;
  57         int data;
  58 };
  59 static sdb_type_t noop_type = {
  60         /* size = */ sizeof(struct noop),
  61         /* init = */ obj_init_noop,
  62         /* destroy = */ obj_destroy_noop,
  63 };
  64
  65 static void *wrapped = (void *)0x42;
  66
  67 static int destroy_wrapper_called = 0;
  68 static void
  69 wrapper_destroy(void *obj)
  70 {
  71         ++destroy_wrapper_called;
  72         fail_unless(obj == wrapped,
  73                         "wrapper_destroy received unexpected obj %p; expected: %p",
  74                         obj, wrapped);
  75 } /* wrapper_destroy */
  76
  77 START_TEST(test_obj_create)
  78 {
  79         sdb_object_t *obj;
  80         sdb_type_t test_type = noop_type;
  81
  82         const char *name = "test-object";
  83
  84         init_noop_called = 0;
  85         init_noop_retval = 0;
  86         destroy_noop_called = 0;
  87         obj = sdb_object_create(name, test_type);
  88         fail_unless(obj != NULL,
  89                         "sdb_object_create() = NULL; expected: a new object");
  90         fail_unless(obj->type.size == test_type.size,
  91                         "after sdb_object_create(): type size mismatch; got: %zu; "
  92                         "expected: %zu", obj->type.size, test_type.size);
  93         fail_unless(obj->type.init == obj_init_noop,
  94                         "after sdb_object_create(): type init = %p; exptected: %p",
  95                         obj->type.init, obj_init_noop);
  96         fail_unless(obj->type.destroy == obj_destroy_noop,
  97                         "after sdb_object_create(): type destroy = %p; exptected: %p",
  98                         obj->type.destroy, obj_destroy_noop);
  99         fail_unless(obj->ref_cnt == 1,
 100                         "after sdb_object_create(): obj->ref_cnt = %d; expected: 1",
 101                         obj->ref_cnt);
 102         fail_unless(!strcmp(obj->name, "test-object"),
 103                         "after sdb_object_create(): obj->name = '%s'; expected: '%s'",
 104                         obj->name, name);
 105         fail_unless(obj->name != name,
 106                         "after sdb_object_create(): obj->name was not strdup()'ed");
 107
 108         fail_unless(init_noop_called == 1,
 109                         "sdb_object_create() did not call object's init function");
 110         fail_unless(destroy_noop_called == 0,
 111                         "sdb_object_create() called object's destroy function");
 112         fail_unless(((struct noop *)obj)->data == 0,
 113                         "sdb_object_create() did not initialize data to zero");
 114
 115         sdb_object_deref(obj);
 116         fail_unless(destroy_noop_called == 1,
 117                         "sdb_object_deref() did not call object's destroy function");
 118
 119         init_noop_called = 0;
 120         init_noop_retval = -1;
 121         destroy_noop_called = 0;
 122         obj = sdb_object_create(name, test_type);
 123         fail_unless(obj == NULL,
 124                         "sdb_object_create() = %p; expected NULL (init returned -1)",
 125                         obj);
 126         fail_unless(init_noop_called == 1,
 127                         "sdb_object_create() did not call object's init function");
 128         fail_unless(destroy_noop_called == 1,
 129                         "sdb_object_create() did not call object's destroy function "
 130                         "after init failure");
 131
 132         test_type.size = 1;
 133         init_noop_called = 0;
 134         init_noop_retval = 0;
 135         destroy_noop_called = 0;
 136         obj = sdb_object_create(name, test_type);
 137         fail_unless(obj == NULL,
 138                         "sdb_object_create() = %p; expected NULL (type's size too small)",
 139                         obj);
 140         fail_unless(init_noop_called == 0,
 141                         "sdb_object_create() called object's init function "
 142                         "when size was too small");
 143         fail_unless(destroy_noop_called == 0,
 144                         "sdb_object_create() called object's destroy function "
 145                         "when size was too small");
 146
 147         test_type.size = sizeof(struct noop);
 148         init_noop_retval = 0;
 149         test_type.init = NULL;
 150         obj = sdb_object_create(name, test_type);
 151         fail_unless(obj != NULL,
 152                         "sdb_object_create() fails without init callback");
 153         sdb_object_deref(obj);
 154
 155         test_type.destroy = NULL;
 156         obj = sdb_object_create(name, test_type);
 157         fail_unless(obj != NULL,
 158                         "sdb_object_create() fails without destroy callback");
 159         sdb_object_deref(obj);
 160
 161         init_noop_called = 0;
 162         obj = sdb_object_create_simple(name, sizeof(struct noop), NULL);
 163         fail_unless(obj != NULL,
 164                         "sdb_object_create_simple() = NULL; expected: <obj>");
 165         fail_unless(obj->type.size == sizeof(struct noop),
 166                         "sdb_object_create_simple() created object of size %zu; "
 167                         "expected: %zu", obj->type.size, sizeof(struct noop));
 168         fail_unless(obj->type.init == NULL,
 169                         "sdb_object_create_simple() did not set init=NULL");
 170         fail_unless(obj->type.destroy == NULL,
 171                         "sdb_object_create_simple() did not set destroy=NULL");
 172         fail_unless(init_noop_called == 0,
 173                         "sdb_object_create_simple() unexpectedly called noop's init");
 174         sdb_object_deref(obj);
 175
 176         obj = sdb_object_create_T(NULL, struct noop);
 177         fail_unless(obj != NULL,
 178                         "sdb_object_create_simple() = NULL; expected: <obj>");
 179         fail_unless(obj->type.size == sizeof(struct noop),
 180                         "sdb_object_create_simple() created object of size %zu; "
 181                         "expected: %zu", obj->type.size, sizeof(struct noop));
 182         fail_unless(obj->type.init == NULL,
 183                         "sdb_object_create_simple() did not set init=NULL");
 184         fail_unless(obj->type.destroy == NULL,
 185                         "sdb_object_create_simple() did not set destroy=NULL");
 186         fail_unless(init_noop_called == 0,
 187                         "sdb_object_create_simple() unexpectedly called noop's init");
 188         sdb_object_deref(obj);
 189 }
 190 END_TEST
 191
 192 START_TEST(test_obj_wrapper)
 193 {
 194         sdb_object_t *obj;
 195         const char *name = "wrapped-object";
 196
 197         destroy_wrapper_called = 0;
 198         obj = sdb_object_create_wrapper(name, wrapped, wrapper_destroy);
 199         fail_unless(obj != NULL,
 200                         "sdb_object_create_wrapper() = NULL; expected: wrapper object");
 201         fail_unless(obj->ref_cnt == 1,
 202                         "after sdb_object_create_wrapper(); obj->ref_cnt = %d; "
 203                         "expected: 1", obj->ref_cnt);
 204         fail_unless(!strcmp(obj->name, name),
 205                         "after sdb_object_create_wrapper(); obj->name = %s; expected: %s",
 206                         obj->name, name);
 207         fail_unless(obj->name != name,
 208                         "sdb_object_create_wrapper() did not copy object name");
 209         fail_unless(SDB_OBJ_WRAPPER(obj)->data == wrapped,
 210                         "wrapped object wraps unexpected data %p; expected: %p",
 211                         SDB_OBJ_WRAPPER(obj)->data, wrapped);
 212
 213         fail_unless(destroy_wrapper_called == 0,
 214                         "sdb_object_create_wrapper() called object's destructor");
 215
 216         sdb_object_deref(obj);
 217         fail_unless(destroy_wrapper_called == 1,
 218                         "sdb_object_deref() did not call wrapped object's destructor");
 219 }
 220 END_TEST
 221
 222 START_TEST(test_obj_ref)
 223 {
 224         sdb_object_t *obj;
 225         sdb_type_t test_type = noop_type;
 226
 227         init_noop_called = 0;
 228         init_noop_retval = 0;
 229         destroy_noop_called = 0;
 230
 231         obj = sdb_object_create("test-object", test_type);
 232         fail_unless(obj != NULL,
 233                         "sdb_object_create() = NULL; expected: valid object");
 234
 235         sdb_object_ref(obj);
 236         fail_unless(obj->ref_cnt == 2,
 237                         "after db_object_ref(): obj->ref_cnt = %d; expected: 2",
 238                         obj->ref_cnt);
 239
 240         sdb_object_ref(obj);
 241         fail_unless(obj->ref_cnt == 3,
 242                         "after db_object_ref(): obj->ref_cnt = %d; expected: 3",
 243                         obj->ref_cnt);
 244
 245         obj->ref_cnt = 42;
 246         sdb_object_ref(obj);
 247         fail_unless(obj->ref_cnt == 43,
 248                         "after db_object_ref(): obj->ref_cnt = %d; expected: 43",
 249                         obj->ref_cnt);
 250
 251         fail_unless(init_noop_called == 1,
 252                         "after some sdb_object_ref(); object's init called %d times; "
 253                         "expected: 1", init_noop_called);
 254         fail_unless(destroy_noop_called == 0,
 255                         "after some sdb_object_ref(); object's destroy called %d time%s; "
 256                         "expected: 0", destroy_noop_called == 1 ? "" : "2",
 257                         destroy_noop_called);
 258
 259         sdb_object_deref(obj);
 260         fail_unless(obj->ref_cnt == 42,
 261                         "after db_object_deref(): obj->ref_cnt = %d; expected: 42",
 262                         obj->ref_cnt);
 263
 264         obj->ref_cnt = 23;
 265         sdb_object_deref(obj);
 266         fail_unless(obj->ref_cnt == 22,
 267                         "after db_object_deref(): obj->ref_cnt = %d; expected: 22",
 268                         obj->ref_cnt);
 269
 270         fail_unless(init_noop_called == 1,
 271                         "after some sdb_object_{de,}ref(); object's init called %d times; "
 272                         "expected: 1", init_noop_called);
 273         fail_unless(destroy_noop_called == 0,
 274                         "after some sdb_object_{de,}ref(); object's destroy called "
 275                         "%d time%s; expected: 0", destroy_noop_called == 1 ? "" : "2",
 276                         destroy_noop_called);
 277
 278         /* test_obj_create already checks the ref_cnt == 1 case */
 279         obj->ref_cnt = 0;
 280         sdb_object_deref(obj);
 281         fail_unless(init_noop_called == 1,
 282                         "after some sdb_object_{de,}ref(); object's init called %d times; "
 283                         "expected: 1", init_noop_called);
 284         fail_unless(destroy_noop_called == 1,
 285                         "after some sdb_object_{de,}ref(); object's destroy called "
 286                         "%d times; expected: 1", destroy_noop_called);
 287
 288         /* this should work */
 289         sdb_object_deref(NULL);
 290 }
 291 END_TEST
 292
 293 START_TEST(test_obj_cmp)
 294 {
 295         sdb_object_t *obj1, *obj2, *obj3, *obj4;
 296         int status;
 297
 298         obj1 = sdb_object_create("a", noop_type);
 299         obj2 = sdb_object_create("b", noop_type);
 300         obj3 = sdb_object_create("B", noop_type);
 301         obj4 = sdb_object_create("c", noop_type);
 302
 303         status = sdb_object_cmp_by_name(obj1, obj2);
 304         fail_unless(status == -1,
 305                         "sdb_object_cmp_by_name('a', 'b') = %d; expected: -1", status);
 306         status = sdb_object_cmp_by_name(obj2, obj3);
 307         fail_unless(status == 0,
 308                         "sdb_object_cmp_by_name('b', 'B') = %d; expected: 0", status);
 309         status = sdb_object_cmp_by_name(obj4, obj3);
 310         fail_unless(status == 1,
 311                         "sdb_object_cmp_by_name('c', 'B') = %d; expected: 1", status);
 312         status = sdb_object_cmp_by_name(obj1, obj1);
 313         fail_unless(status == 0,
 314                         "sdb_object_cmp_by_name('a', 'a') = %d; expected: 0", status);
 315
 316         sdb_object_deref(obj1);
 317         sdb_object_deref(obj2);
 318         sdb_object_deref(obj3);
 319         sdb_object_deref(obj4);
 320 }
 321 END_TEST
 322
 323 Suite *
 324 core_object_suite(void)
 325 {
 326         Suite *s = suite_create("core::object");
 327         TCase *tc;
 328
 329         tc = tcase_create("core");
 330         tcase_add_test(tc, test_obj_create);
 331         tcase_add_test(tc, test_obj_wrapper);
 332         tcase_add_test(tc, test_obj_ref);
 333         tcase_add_test(tc, test_obj_cmp);
 334         suite_add_tcase(s, tc);
 335
 336         return s;
 337 } /* core_object_suite */
 338
 339 /* vim: set tw=78 sw=4 ts=4 noexpandtab : */
 340