1.1 --- a/tests/test_buffer.c Wed Jan 03 22:17:40 2024 +0100
1.2 +++ b/tests/test_buffer.c Thu Jan 04 21:05:32 2024 +0100
1.3 @@ -430,7 +430,7 @@
1.4 #define TEST_BUFFER_SHIFT_TEARDOWN(buf) \
1.5 cxBufferDestroy(&buf); \
1.6 CX_TEST_ASSERT(cx_testing_allocator_verify(&talloc)); \
1.7 - cx_testing_allocator_destroy(&talloc);
1.8 + cx_testing_allocator_destroy(&talloc)
1.9
1.10
1.11 CX_TEST(test_buffer_shift_left_zero) {
1.12 @@ -585,6 +585,529 @@
1.13 }
1.14 }
1.15
1.16 +static size_t mock_write_limited_rate(
1.17 + void const *ptr,
1.18 + size_t size,
1.19 + __attribute__((unused)) size_t nitems,
1.20 + CxBuffer *buffer
1.21 +) {
1.22 + // simulate limited target drain capacity
1.23 + static bool full = false;
1.24 + if (full) {
1.25 + full = false;
1.26 + return 0;
1.27 + } else {
1.28 + full = true;
1.29 + return cxBufferWrite(ptr, size, nitems > 2 ? 2 : nitems, buffer);
1.30 + }
1.31 +}
1.32 +
1.33 +CX_TEST(test_buffer_write_size_one_fit) {
1.34 + CxBuffer buf, target;
1.35 + cxBufferInit(&target, NULL, 16, cxDefaultAllocator, CX_BUFFER_AUTO_EXTEND);
1.36 + cxBufferInit(&buf, NULL, 16, cxDefaultAllocator, CX_BUFFER_DEFAULT);
1.37 + memcpy(buf.space, "prep\0\0\0\0\0\0\0\0\0\0\0\0", 16);
1.38 + buf.capacity = 8;
1.39 + buf.size = buf.pos = 4;
1.40 + const char *data = "test";
1.41 + CX_TEST_DO {
1.42 + size_t written = cxBufferWrite(data, 1, 4, &buf);
1.43 + CX_TEST_ASSERT(written == 4);
1.44 + CX_TEST_ASSERT(buf.size == 8);
1.45 + CX_TEST_ASSERT(buf.pos == 8);
1.46 + CX_TEST_ASSERT(buf.capacity == 8);
1.47 + CX_TEST_ASSERT(0 == memcmp(buf.space, "preptest", 8));
1.48 + }
1.49 +
1.50 + cxBufferDestroy(&buf);
1.51 + cxBufferDestroy(&target);
1.52 +}
1.53 +
1.54 +CX_TEST(test_buffer_write_size_one_discard) {
1.55 + CxBuffer buf, target;
1.56 + cxBufferInit(&target, NULL, 16, cxDefaultAllocator, CX_BUFFER_AUTO_EXTEND);
1.57 + cxBufferInit(&buf, NULL, 16, cxDefaultAllocator, CX_BUFFER_DEFAULT);
1.58 + memcpy(buf.space, "prep\0\0\0\0\0\0\0\0\0\0\0\0", 16);
1.59 + buf.capacity = 8;
1.60 + buf.size = buf.pos = 4;
1.61 + const char *data = "testing";
1.62 + CX_TEST_DO {
1.63 + size_t written = cxBufferWrite(data, 1, 7, &buf);
1.64 + CX_TEST_ASSERT(written == 4);
1.65 + CX_TEST_ASSERT(buf.size == 8);
1.66 + CX_TEST_ASSERT(buf.pos == 8);
1.67 + CX_TEST_ASSERT(buf.capacity == 8);
1.68 + CX_TEST_ASSERT(0 == memcmp(buf.space, "preptest\0", 9));
1.69 + }
1.70 + cxBufferDestroy(&buf);
1.71 + cxBufferDestroy(&target);
1.72 +}
1.73 +
1.74 +CX_TEST(test_buffer_write_size_one_extend) {
1.75 + CxBuffer buf, target;
1.76 + cxBufferInit(&target, NULL, 16, cxDefaultAllocator, CX_BUFFER_AUTO_EXTEND);
1.77 + cxBufferInit(&buf, NULL, 16, cxDefaultAllocator, CX_BUFFER_DEFAULT);
1.78 + memcpy(buf.space, "prep\0\0\0\0\0\0\0\0\0\0\0\0", 16);
1.79 + buf.capacity = 8;
1.80 + buf.size = buf.pos = 4;
1.81 + buf.flags |= CX_BUFFER_AUTO_EXTEND;
1.82 + const char *data = "testing";
1.83 + CX_TEST_DO {
1.84 + size_t written = cxBufferWrite(data, 1, 7, &buf);
1.85 + CX_TEST_ASSERT(written == 7);
1.86 + CX_TEST_ASSERT(buf.size == 11);
1.87 + CX_TEST_ASSERT(buf.pos == 11);
1.88 + CX_TEST_ASSERT(buf.capacity >= 11);
1.89 + CX_TEST_ASSERT(0 == memcmp(buf.space, "preptesting", 11));
1.90 + }
1.91 + cxBufferDestroy(&buf);
1.92 + cxBufferDestroy(&target);
1.93 +}
1.94 +
1.95 +CX_TEST(test_buffer_write_multibyte_fit) {
1.96 + CxBuffer buf, target;
1.97 + cxBufferInit(&target, NULL, 16, cxDefaultAllocator, CX_BUFFER_AUTO_EXTEND);
1.98 + cxBufferInit(&buf, NULL, 16, cxDefaultAllocator, CX_BUFFER_DEFAULT);
1.99 + memcpy(buf.space, "prep\0\0\0\0\0\0\0\0\0\0\0\0", 16);
1.100 + buf.capacity = 8;
1.101 + buf.size = buf.pos = 4;
1.102 + const char *data = "test";
1.103 + CX_TEST_DO {
1.104 + size_t written = cxBufferWrite(data, 2, 2, &buf);
1.105 + CX_TEST_ASSERT(written == 2);
1.106 + CX_TEST_ASSERT(buf.size == 8);
1.107 + CX_TEST_ASSERT(buf.pos == 8);
1.108 + CX_TEST_ASSERT(buf.capacity == 8);
1.109 + CX_TEST_ASSERT(0 == memcmp(buf.space, "preptest", 8));
1.110 + }
1.111 + cxBufferDestroy(&buf);
1.112 + cxBufferDestroy(&target);
1.113 +}
1.114 +
1.115 +CX_TEST(test_buffer_write_multibyte_discard) {
1.116 + CxBuffer buf, target;
1.117 + cxBufferInit(&target, NULL, 16, cxDefaultAllocator, CX_BUFFER_AUTO_EXTEND);
1.118 + cxBufferInit(&buf, NULL, 16, cxDefaultAllocator, CX_BUFFER_DEFAULT);
1.119 + memcpy(buf.space, "prep\0\0\0\0\0\0\0\0\0\0\0\0", 16);
1.120 + buf.capacity = 8;
1.121 + buf.size = 4;
1.122 + buf.pos = 3;
1.123 + const char *data = "testing";
1.124 + CX_TEST_DO {
1.125 + size_t written = cxBufferWrite(data, 2, 4, &buf);
1.126 + // remember: whole elements are discarded if they do not fit
1.127 + CX_TEST_ASSERT(written == 2);
1.128 + CX_TEST_ASSERT(buf.size == 7);
1.129 + CX_TEST_ASSERT(buf.pos == 7);
1.130 + CX_TEST_ASSERT(buf.capacity == 8);
1.131 + CX_TEST_ASSERT(0 == memcmp(buf.space, "pretest\0", 8));
1.132 + }
1.133 + cxBufferDestroy(&buf);
1.134 + cxBufferDestroy(&target);
1.135 +}
1.136 +
1.137 +CX_TEST(test_buffer_write_multibyte_extend) {
1.138 + CxBuffer buf, target;
1.139 + cxBufferInit(&target, NULL, 16, cxDefaultAllocator, CX_BUFFER_AUTO_EXTEND);
1.140 + cxBufferInit(&buf, NULL, 16, cxDefaultAllocator, CX_BUFFER_DEFAULT);
1.141 + memcpy(buf.space, "prep\0\0\0\0\0\0\0\0\0\0\0\0", 16);
1.142 + buf.capacity = 8;
1.143 + buf.size = 4;
1.144 + buf.pos = 3;
1.145 + buf.flags |= CX_BUFFER_AUTO_EXTEND;
1.146 + const char *data = "tester";
1.147 + CX_TEST_DO {
1.148 + size_t written = cxBufferWrite(data, 2, 3, &buf);
1.149 + // remember: whole elements are discarded if they do not fit
1.150 + CX_TEST_ASSERT(written == 3);
1.151 + CX_TEST_ASSERT(buf.size == 9);
1.152 + CX_TEST_ASSERT(buf.pos == 9);
1.153 + CX_TEST_ASSERT(buf.capacity >= 9);
1.154 + CX_TEST_ASSERT(0 == memcmp(buf.space, "pretester", 9));
1.155 + }
1.156 + cxBufferDestroy(&buf);
1.157 + cxBufferDestroy(&target);
1.158 +}
1.159 +
1.160 +CX_TEST(test_buffer_put_fit) {
1.161 + CxBuffer buf, target;
1.162 + cxBufferInit(&target, NULL, 16, cxDefaultAllocator, CX_BUFFER_AUTO_EXTEND);
1.163 + cxBufferInit(&buf, NULL, 16, cxDefaultAllocator, CX_BUFFER_DEFAULT);
1.164 + memcpy(buf.space, "prep\0\0\0\0\0\0\0\0\0\0\0\0", 16);
1.165 + buf.capacity = 8;
1.166 + buf.size = buf.pos = 4;
1.167 + CX_TEST_DO {
1.168 + int c = cxBufferPut(&buf, 0x200 | 'a');
1.169 + CX_TEST_ASSERT(c == 'a');
1.170 + CX_TEST_ASSERT(buf.size == 5);
1.171 + CX_TEST_ASSERT(buf.pos == 5);
1.172 + CX_TEST_ASSERT(buf.capacity == 8);
1.173 + CX_TEST_ASSERT(0 == memcmp(buf.space, "prepa\0", 6));
1.174 + }
1.175 + cxBufferDestroy(&buf);
1.176 + cxBufferDestroy(&target);
1.177 +}
1.178 +
1.179 +CX_TEST(test_buffer_put_discard) {
1.180 + CxBuffer buf, target;
1.181 + cxBufferInit(&target, NULL, 16, cxDefaultAllocator, CX_BUFFER_AUTO_EXTEND);
1.182 + cxBufferInit(&buf, NULL, 16, cxDefaultAllocator, CX_BUFFER_DEFAULT);
1.183 + memcpy(buf.space, "prep\0\0\0\0\0\0\0\0\0\0\0\0", 16);
1.184 + buf.capacity = 8;
1.185 + buf.size = 4;
1.186 + buf.pos = 8;
1.187 + CX_TEST_DO {
1.188 + int c = cxBufferPut(&buf, 0x200 | 'a');
1.189 + CX_TEST_ASSERT(c == EOF);
1.190 + CX_TEST_ASSERT(buf.size == 4);
1.191 + CX_TEST_ASSERT(buf.pos == 8);
1.192 + CX_TEST_ASSERT(buf.capacity == 8);
1.193 + CX_TEST_ASSERT(0 == memcmp(buf.space, "prep\0\0\0\0\0", 9));
1.194 + }
1.195 + cxBufferDestroy(&buf);
1.196 + cxBufferDestroy(&target);
1.197 +}
1.198 +
1.199 +CX_TEST(test_buffer_put_extend) {
1.200 + CxBuffer buf, target;
1.201 + cxBufferInit(&target, NULL, 16, cxDefaultAllocator, CX_BUFFER_AUTO_EXTEND);
1.202 + cxBufferInit(&buf, NULL, 16, cxDefaultAllocator, CX_BUFFER_DEFAULT);
1.203 + memcpy(buf.space, "prep\0\0\0\0\0\0\0\0\0\0\0\0", 16);
1.204 + buf.capacity = 8;
1.205 + buf.size = 4;
1.206 + buf.pos = 8;
1.207 + buf.flags |= CX_BUFFER_AUTO_EXTEND;
1.208 + CX_TEST_DO {
1.209 + int c = cxBufferPut(&buf, 0x200 | 'a');
1.210 + CX_TEST_ASSERT(c == 'a');
1.211 + CX_TEST_ASSERT(buf.size == 9);
1.212 + CX_TEST_ASSERT(buf.pos == 9);
1.213 + CX_TEST_ASSERT(buf.capacity >= 9);
1.214 + CX_TEST_ASSERT(0 == memcmp(buf.space, "prep\0\0\0\0a", 9));
1.215 + }
1.216 + cxBufferDestroy(&buf);
1.217 + cxBufferDestroy(&target);
1.218 +}
1.219 +
1.220 +CX_TEST(test_buffer_put_string_fit) {
1.221 + CxBuffer buf, target;
1.222 + cxBufferInit(&target, NULL, 16, cxDefaultAllocator, CX_BUFFER_AUTO_EXTEND);
1.223 + cxBufferInit(&buf, NULL, 16, cxDefaultAllocator, CX_BUFFER_DEFAULT);
1.224 + memcpy(buf.space, "prep\0\0\0\0\0\0\0\0\0\0\0\0", 16);
1.225 + buf.capacity = 8;
1.226 + buf.size = buf.pos = 4;
1.227 + const char *data = "test";
1.228 + CX_TEST_DO {
1.229 + size_t written = cxBufferPutString(&buf, data);
1.230 + CX_TEST_ASSERT(written == 4);
1.231 + CX_TEST_ASSERT(buf.size == 8);
1.232 + CX_TEST_ASSERT(buf.pos == 8);
1.233 + CX_TEST_ASSERT(buf.capacity == 8);
1.234 + CX_TEST_ASSERT(0 == memcmp(buf.space, "preptest", 8));
1.235 + }
1.236 + cxBufferDestroy(&buf);
1.237 + cxBufferDestroy(&target);
1.238 +}
1.239 +
1.240 +CX_TEST(test_buffer_put_string_discard) {
1.241 + CxBuffer buf, target;
1.242 + cxBufferInit(&target, NULL, 16, cxDefaultAllocator, CX_BUFFER_AUTO_EXTEND);
1.243 + cxBufferInit(&buf, NULL, 16, cxDefaultAllocator, CX_BUFFER_DEFAULT);
1.244 + memcpy(buf.space, "prep\0\0\0\0\0\0\0\0\0\0\0\0", 16);
1.245 + buf.capacity = 8;
1.246 + buf.size = buf.pos = 4;
1.247 + const char *data = "testing";
1.248 + CX_TEST_DO {
1.249 + size_t written = cxBufferPutString(&buf, data);
1.250 + CX_TEST_ASSERT(written == 4);
1.251 + CX_TEST_ASSERT(buf.size == 8);
1.252 + CX_TEST_ASSERT(buf.pos == 8);
1.253 + CX_TEST_ASSERT(buf.capacity == 8);
1.254 + CX_TEST_ASSERT(0 == memcmp(buf.space, "preptest\0", 9));
1.255 + }
1.256 + cxBufferDestroy(&buf);
1.257 + cxBufferDestroy(&target);
1.258 +}
1.259 +
1.260 +CX_TEST(test_buffer_put_string_extend) {
1.261 + CxBuffer buf, target;
1.262 + cxBufferInit(&target, NULL, 16, cxDefaultAllocator, CX_BUFFER_AUTO_EXTEND);
1.263 + cxBufferInit(&buf, NULL, 16, cxDefaultAllocator, CX_BUFFER_DEFAULT);
1.264 + memcpy(buf.space, "prep\0\0\0\0\0\0\0\0\0\0\0\0", 16);
1.265 + buf.capacity = 8;
1.266 + buf.size = buf.pos = 4;
1.267 + buf.flags |= CX_BUFFER_AUTO_EXTEND;
1.268 + const char *data = "testing";
1.269 + CX_TEST_DO {
1.270 + size_t written = cxBufferPutString(&buf, data);
1.271 + CX_TEST_ASSERT(written == 7);
1.272 + CX_TEST_ASSERT(buf.size == 11);
1.273 + CX_TEST_ASSERT(buf.pos == 11);
1.274 + CX_TEST_ASSERT(buf.capacity >= 11);
1.275 + CX_TEST_ASSERT(0 == memcmp(buf.space, "preptesting", 11));
1.276 + }
1.277 + cxBufferDestroy(&buf);
1.278 + cxBufferDestroy(&target);
1.279 +}
1.280 +
1.281 +CX_TEST(test_buffer_write_size_overflow) {
1.282 + CxBuffer buf, target;
1.283 + cxBufferInit(&target, NULL, 16, cxDefaultAllocator, CX_BUFFER_AUTO_EXTEND);
1.284 + cxBufferInit(&buf, NULL, 16, cxDefaultAllocator, CX_BUFFER_DEFAULT);
1.285 + memcpy(buf.space, "prep\0\0\0\0\0\0\0\0\0\0\0\0", 16);
1.286 + buf.capacity = 8;
1.287 + buf.size = buf.pos = 4;
1.288 + const char *data = "testing";
1.289 + CX_TEST_DO {
1.290 + size_t written = cxBufferWrite(data, 8, SIZE_MAX / 4, &buf);
1.291 + CX_TEST_ASSERT(written == 0);
1.292 + CX_TEST_ASSERT(buf.capacity == 8);
1.293 + CX_TEST_ASSERT(buf.pos == 4);
1.294 + CX_TEST_ASSERT(buf.size == 4);
1.295 + CX_TEST_ASSERT(0 == memcmp(buf.space, "prep\0", 5));
1.296 + }
1.297 + cxBufferDestroy(&buf);
1.298 + cxBufferDestroy(&target);
1.299 +}
1.300 +
1.301 +CX_TEST(test_buffer_write_capacity_overflow) {
1.302 + CxBuffer buf, target;
1.303 + cxBufferInit(&target, NULL, 16, cxDefaultAllocator, CX_BUFFER_AUTO_EXTEND);
1.304 + cxBufferInit(&buf, NULL, 16, cxDefaultAllocator, CX_BUFFER_DEFAULT);
1.305 + memcpy(buf.space, "prep\0\0\0\0\0\0\0\0\0\0\0\0", 16);
1.306 + buf.capacity = 8;
1.307 + buf.size = buf.pos = 4;
1.308 + buf.flags |= CX_BUFFER_AUTO_EXTEND;
1.309 + const char *data = "testing";
1.310 + CX_TEST_DO {
1.311 + size_t written = cxBufferWrite(data, 1, SIZE_MAX - 2, &buf);
1.312 + CX_TEST_ASSERT(written == 0);
1.313 + CX_TEST_ASSERT(buf.capacity == 8);
1.314 + CX_TEST_ASSERT(buf.pos == 4);
1.315 + CX_TEST_ASSERT(buf.size == 4);
1.316 + CX_TEST_ASSERT(0 == memcmp(buf.space, "prep\0", 5));
1.317 + }
1.318 + cxBufferDestroy(&buf);
1.319 + cxBufferDestroy(&target);
1.320 +}
1.321 +
1.322 +CX_TEST(test_buffer_write_only_overwrite) {
1.323 + CxBuffer buf, target;
1.324 + cxBufferInit(&target, NULL, 16, cxDefaultAllocator, CX_BUFFER_AUTO_EXTEND);
1.325 + cxBufferInit(&buf, NULL, 16, cxDefaultAllocator, CX_BUFFER_DEFAULT);
1.326 + memcpy(buf.space, "preptest\0\0\0\0\0\0\0\0", 16);
1.327 + buf.capacity = 8;
1.328 + buf.pos = 3;
1.329 + buf.size = 8;
1.330 + buf.flags |= CX_BUFFER_AUTO_EXTEND;
1.331 + CX_TEST_DO {
1.332 + size_t written = cxBufferWrite("XXX", 2, 2, &buf);
1.333 + CX_TEST_ASSERT(written == 2);
1.334 + CX_TEST_ASSERT(buf.capacity == 8);
1.335 + CX_TEST_ASSERT(buf.size == 8);
1.336 + CX_TEST_ASSERT(buf.pos == 7);
1.337 + CX_TEST_ASSERT(0 == memcmp(buf.space, "preXXX\0t", 8));
1.338 + }
1.339 + cxBufferDestroy(&buf);
1.340 + cxBufferDestroy(&target);
1.341 +}
1.342 +
1.343 +CX_TEST(test_buffer_write_flush_at_capacity) {
1.344 + CxBuffer buf, target;
1.345 + cxBufferInit(&target, NULL, 16, cxDefaultAllocator, CX_BUFFER_AUTO_EXTEND);
1.346 + cxBufferInit(&buf, NULL, 16, cxDefaultAllocator, CX_BUFFER_DEFAULT);
1.347 + memcpy(buf.space, "prep\0\0\0\0\0\0\0\0\0\0\0\0", 16);
1.348 + buf.capacity = 8;
1.349 + buf.size = buf.pos = 4;
1.350 + buf.flush_target = ⌖
1.351 + buf.flush_func = (cx_write_func)cxBufferWrite;
1.352 + buf.flush_blkmax = 1;
1.353 + CX_TEST_DO {
1.354 + size_t written = cxBufferWrite("foo", 1, 3, &buf);
1.355 + CX_TEST_ASSERT(written == 3);
1.356 + CX_TEST_ASSERT(buf.pos == 7);
1.357 + CX_TEST_ASSERT(buf.size == 7);
1.358 + CX_TEST_ASSERT(target.pos == 0);
1.359 + CX_TEST_ASSERT(target.size == 0);
1.360 + written = cxBufferWrite("hello", 1, 5, &buf);
1.361 + CX_TEST_ASSERT(written == 5);
1.362 + CX_TEST_ASSERT(buf.pos == 0);
1.363 + CX_TEST_ASSERT(buf.size == 0);
1.364 + CX_TEST_ASSERT(buf.capacity == 8);
1.365 + CX_TEST_ASSERT(target.pos == 12);
1.366 + CX_TEST_ASSERT(target.size == 12);
1.367 + CX_TEST_ASSERT(0 == memcmp(target.space, "prepfoohello", 12));
1.368 + }
1.369 + cxBufferDestroy(&buf);
1.370 + cxBufferDestroy(&target);
1.371 +}
1.372 +
1.373 +CX_TEST(test_buffer_write_flush_at_threshold) {
1.374 + CxBuffer buf, target;
1.375 + cxBufferInit(&target, NULL, 16, cxDefaultAllocator, CX_BUFFER_AUTO_EXTEND);
1.376 + cxBufferInit(&buf, NULL, 16, cxDefaultAllocator, CX_BUFFER_DEFAULT);
1.377 + memcpy(buf.space, "prep\0\0\0\0\0\0\0\0\0\0\0\0", 16);
1.378 + buf.capacity = 8;
1.379 + buf.size = buf.pos = 4;
1.380 + buf.flush_target = ⌖
1.381 + buf.flush_func = (cx_write_func)cxBufferWrite;
1.382 + buf.flush_blkmax = 1;
1.383 + buf.flush_threshold = 12;
1.384 + buf.flags |= CX_BUFFER_AUTO_EXTEND;
1.385 + CX_TEST_DO {
1.386 + size_t written = cxBufferWrite("foobar", 1, 6, &buf);
1.387 + CX_TEST_ASSERT(written == 6);
1.388 + CX_TEST_ASSERT(buf.pos == 10);
1.389 + CX_TEST_ASSERT(buf.size == 10);
1.390 + CX_TEST_ASSERT(buf.capacity >= 10);
1.391 + CX_TEST_ASSERT(buf.capacity <= 12);
1.392 + CX_TEST_ASSERT(target.pos == 0);
1.393 + CX_TEST_ASSERT(target.size == 0);
1.394 + written = cxBufferWrite("hello", 1, 5, &buf);
1.395 + CX_TEST_ASSERT(written == 5);
1.396 + CX_TEST_ASSERT(buf.pos == 0);
1.397 + CX_TEST_ASSERT(buf.size == 0);
1.398 + CX_TEST_ASSERT(buf.capacity <= 12);
1.399 + CX_TEST_ASSERT(target.pos == 15);
1.400 + CX_TEST_ASSERT(target.size == 15);
1.401 + CX_TEST_ASSERT(0 == memcmp(target.space, "prepfoobarhello", 15));
1.402 + }
1.403 + cxBufferDestroy(&buf);
1.404 + cxBufferDestroy(&target);
1.405 +}
1.406 +
1.407 +CX_TEST(test_buffer_write_flush_rate_limited) {
1.408 + CxBuffer buf, target;
1.409 + cxBufferInit(&target, NULL, 16, cxDefaultAllocator, CX_BUFFER_AUTO_EXTEND);
1.410 + cxBufferInit(&buf, NULL, 16, cxDefaultAllocator, CX_BUFFER_DEFAULT);
1.411 + memcpy(buf.space, "prep\0\0\0\0\0\0\0\0\0\0\0\0", 16);
1.412 + buf.capacity = 8;
1.413 + buf.size = buf.pos = 4;
1.414 + buf.flush_target = ⌖
1.415 + buf.flush_blkmax = 1;
1.416 + // limit the rate of the flush function and the capacity of the target
1.417 + buf.flush_func = (cx_write_func) mock_write_limited_rate;
1.418 + target.capacity = 16;
1.419 + target.flags &= ~CX_BUFFER_AUTO_EXTEND;
1.420 + CX_TEST_DO {
1.421 + size_t written = cxBufferWrite("foo", 1, 3, &buf);
1.422 + CX_TEST_ASSERT(written == 3);
1.423 + CX_TEST_ASSERT(buf.pos == 7);
1.424 + CX_TEST_ASSERT(buf.size == 7);
1.425 + CX_TEST_ASSERT(target.pos == 0);
1.426 + CX_TEST_ASSERT(target.size == 0);
1.427 + written = cxBufferWrite("hello, world!", 1, 13, &buf);
1.428 + // " world!" fits into this buffer, the remaining stuff is flushed out
1.429 + CX_TEST_ASSERT(written == 13);
1.430 + CX_TEST_ASSERT(buf.pos == 7);
1.431 + CX_TEST_ASSERT(buf.size == 7);
1.432 + CX_TEST_ASSERT(buf.capacity == 8);
1.433 + CX_TEST_ASSERT(0 == memcmp(buf.space, " world!", 7));
1.434 + CX_TEST_ASSERT(target.pos == 13);
1.435 + CX_TEST_ASSERT(target.size == 13);
1.436 + CX_TEST_ASSERT(target.capacity == 16);
1.437 + CX_TEST_ASSERT(0 == memcmp(target.space, "prepfoohello,", 13));
1.438 + }
1.439 + cxBufferDestroy(&buf);
1.440 + cxBufferDestroy(&target);
1.441 +}
1.442 +
1.443 +CX_TEST(test_buffer_get) {
1.444 + CxBuffer buf;
1.445 + cxBufferInit(&buf, NULL, 16, cxDefaultAllocator, CX_BUFFER_DEFAULT);
1.446 + memcpy(buf.space, "some data\0\0\0\0\0\0\0", 16);
1.447 + buf.capacity = 12;
1.448 + buf.size = 9;
1.449 + buf.pos = 2;
1.450 + CX_TEST_DO {
1.451 + CX_TEST_ASSERT(cxBufferGet(&buf) == 'm');
1.452 + CX_TEST_ASSERT(cxBufferGet(&buf) == 'e');
1.453 + CX_TEST_ASSERT(cxBufferGet(&buf) == ' ');
1.454 + CX_TEST_ASSERT(cxBufferGet(&buf) == 'd');
1.455 + CX_TEST_ASSERT(buf.pos == 6);
1.456 + }
1.457 + cxBufferDestroy(&buf);
1.458 +}
1.459 +
1.460 +CX_TEST(test_buffer_get_eof) {
1.461 + CxBuffer buf;
1.462 + cxBufferInit(&buf, NULL, 16, cxDefaultAllocator, CX_BUFFER_DEFAULT);
1.463 + memcpy(buf.space, "some data\0\0\0\0\0\0\0", 16);
1.464 + buf.capacity = 12;
1.465 + buf.pos = buf.size = 9;
1.466 + CX_TEST_DO {
1.467 + CX_TEST_ASSERT(cxBufferGet(&buf) == EOF);
1.468 + }
1.469 + cxBufferDestroy(&buf);
1.470 +}
1.471 +
1.472 +CX_TEST(test_buffer_read) {
1.473 + CxBuffer buf;
1.474 + cxBufferInit(&buf, NULL, 16, cxDefaultAllocator, CX_BUFFER_DEFAULT);
1.475 + memcpy(buf.space, "some data\0\0\0\0\0\0\0", 16);
1.476 + buf.capacity = 12;
1.477 + buf.size = 9;
1.478 + buf.pos = 2;
1.479 + CX_TEST_DO {
1.480 + char target[4];
1.481 + size_t read = cxBufferRead(&target, 1, 4, &buf);
1.482 + CX_TEST_ASSERT(read == 4);
1.483 + CX_TEST_ASSERT(0 == memcmp(&target, "me d", 4));
1.484 + CX_TEST_ASSERT(buf.pos == 6);
1.485 + }
1.486 + cxBufferDestroy(&buf);
1.487 +}
1.488 +
1.489 +CX_TEST(test_buffer_read_oob) {
1.490 + CxBuffer buf;
1.491 + cxBufferInit(&buf, NULL, 16, cxDefaultAllocator, CX_BUFFER_DEFAULT);
1.492 + memcpy(buf.space, "some data\0\0\0\0\0\0\0", 16);
1.493 + buf.capacity = 12;
1.494 + buf.size = 9;
1.495 + buf.pos = 6;
1.496 + CX_TEST_DO {
1.497 + char target[4];
1.498 + size_t read = cxBufferRead(&target, 1, 4, &buf);
1.499 + CX_TEST_ASSERT(read == 3);
1.500 + CX_TEST_ASSERT(0 == memcmp(&target, "ata", 3));
1.501 + CX_TEST_ASSERT(buf.pos == 9);
1.502 + }
1.503 + cxBufferDestroy(&buf);
1.504 +}
1.505 +
1.506 +CX_TEST(test_buffer_read_oob_multibyte) {
1.507 + CxBuffer buf;
1.508 + cxBufferInit(&buf, NULL, 16, cxDefaultAllocator, CX_BUFFER_DEFAULT);
1.509 + memcpy(buf.space, "some data\0\0\0\0\0\0\0", 16);
1.510 + buf.capacity = 12;
1.511 + buf.size = 9;
1.512 + buf.pos = 6;
1.513 + CX_TEST_DO {
1.514 + char target[4];
1.515 + target[2] = '\0';
1.516 + size_t read = cxBufferRead(&target, 2, 2, &buf);
1.517 + CX_TEST_ASSERT(read == 1);
1.518 + CX_TEST_ASSERT(0 == memcmp(&target, "at\0", 3));
1.519 + CX_TEST_ASSERT(buf.pos == 8);
1.520 + }
1.521 + cxBufferDestroy(&buf);
1.522 +}
1.523 +
1.524 +CX_TEST(test_buffer_read_eof) {
1.525 + CxBuffer buf;
1.526 + cxBufferInit(&buf, NULL, 16, cxDefaultAllocator, CX_BUFFER_DEFAULT);
1.527 + memcpy(buf.space, "some data\0\0\0\0\0\0\0", 16);
1.528 + buf.capacity = 12;
1.529 + buf.size = buf.pos = 9;
1.530 + CX_TEST_DO {
1.531 + char target[4];
1.532 + size_t read = cxBufferRead(&target, 1, 1, &buf);
1.533 + CX_TEST_ASSERT(read == 0);
1.534 + CX_TEST_ASSERT(buf.pos == 9);
1.535 + }
1.536 + cxBufferDestroy(&buf);
1.537 +}
1.538 +
1.539 CxTestSuite *cx_test_suite_buffer(void) {
1.540 CxTestSuite *suite = cx_test_suite_new("buffer");
1.541
1.542 @@ -623,6 +1146,30 @@
1.543 cx_test_register(suite, test_buffer_shift_right_overshift_discard);
1.544 cx_test_register(suite, test_buffer_shift_right_overshift_extend);
1.545 cx_test_register(suite, test_buffer_shift_right_offset_interface);
1.546 -
1.547 + cx_test_register(suite, test_buffer_write_size_one_fit);
1.548 + cx_test_register(suite, test_buffer_write_size_one_discard);
1.549 + cx_test_register(suite, test_buffer_write_size_one_extend);
1.550 + cx_test_register(suite, test_buffer_write_multibyte_fit);
1.551 + cx_test_register(suite, test_buffer_write_multibyte_discard);
1.552 + cx_test_register(suite, test_buffer_write_multibyte_extend);
1.553 + cx_test_register(suite, test_buffer_put_fit);
1.554 + cx_test_register(suite, test_buffer_put_discard);
1.555 + cx_test_register(suite, test_buffer_put_extend);
1.556 + cx_test_register(suite, test_buffer_put_string_fit);
1.557 + cx_test_register(suite, test_buffer_put_string_discard);
1.558 + cx_test_register(suite, test_buffer_put_string_extend);
1.559 + cx_test_register(suite, test_buffer_write_size_overflow);
1.560 + cx_test_register(suite, test_buffer_write_capacity_overflow);
1.561 + cx_test_register(suite, test_buffer_write_only_overwrite);
1.562 + cx_test_register(suite, test_buffer_write_flush_at_capacity);
1.563 + cx_test_register(suite, test_buffer_write_flush_at_threshold);
1.564 + cx_test_register(suite, test_buffer_write_flush_rate_limited);
1.565 + cx_test_register(suite, test_buffer_get);
1.566 + cx_test_register(suite, test_buffer_get_eof);
1.567 + cx_test_register(suite, test_buffer_read);
1.568 + cx_test_register(suite, test_buffer_read_oob);
1.569 + cx_test_register(suite, test_buffer_read_oob_multibyte);
1.570 + cx_test_register(suite, test_buffer_read_eof);
1.571 +
1.572 return suite;
1.573 }
