Mon, 01 Jan 2024 16:42:37 +0100
begin migration of buffer tests - relates to #342
universe@530 | 1 | /* |
universe@530 | 2 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER. |
universe@530 | 3 | * |
universe@530 | 4 | * Copyright 2021 Mike Becker, Olaf Wintermann All rights reserved. |
universe@530 | 5 | * |
universe@530 | 6 | * Redistribution and use in source and binary forms, with or without |
universe@530 | 7 | * modification, are permitted provided that the following conditions are met: |
universe@530 | 8 | * |
universe@530 | 9 | * 1. Redistributions of source code must retain the above copyright |
universe@530 | 10 | * notice, this list of conditions and the following disclaimer. |
universe@530 | 11 | * |
universe@530 | 12 | * 2. Redistributions in binary form must reproduce the above copyright |
universe@530 | 13 | * notice, this list of conditions and the following disclaimer in the |
universe@530 | 14 | * documentation and/or other materials provided with the distribution. |
universe@530 | 15 | * |
universe@530 | 16 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
universe@530 | 17 | * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
universe@530 | 18 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
universe@530 | 19 | * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE |
universe@530 | 20 | * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
universe@530 | 21 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
universe@530 | 22 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
universe@530 | 23 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
universe@530 | 24 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
universe@530 | 25 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
universe@530 | 26 | * POSSIBILITY OF SUCH DAMAGE. |
universe@530 | 27 | */ |
universe@530 | 28 | |
universe@530 | 29 | #include "cx/buffer.h" |
universe@530 | 30 | |
universe@530 | 31 | #include <gtest/gtest.h> |
universe@530 | 32 | #include "util_allocator.h" |
universe@530 | 33 | |
universe@548 | 34 | class BufferFixture : public ::testing::Test { |
universe@548 | 35 | protected: |
universe@548 | 36 | void SetUp() override { |
universe@789 | 37 | cxBufferInit(&buf, NULL, 16, cxDefaultAllocator, CX_BUFFER_DEFAULT); |
universe@548 | 38 | buf.size = 6; |
universe@548 | 39 | buf.pos = 3; |
universe@548 | 40 | } |
universe@548 | 41 | |
universe@548 | 42 | void TearDown() override { |
universe@548 | 43 | cxBufferDestroy(&buf); |
universe@548 | 44 | } |
universe@548 | 45 | |
universe@548 | 46 | CxBuffer buf{}; |
universe@548 | 47 | }; |
universe@548 | 48 | |
universe@535 | 49 | class BufferShiftFixture : public ::testing::Test { |
universe@535 | 50 | protected: |
universe@535 | 51 | void SetUp() override { |
universe@789 | 52 | CX_TEST_ASSERT(cx_testing_allocator_verify(&talloc)); |
universe@789 | 53 | cxBufferInit(&buf, NULL, 16, &alloc, CX_BUFFER_DEFAULT); |
universe@535 | 54 | memcpy(buf.space, "test____________", 16); |
universe@535 | 55 | buf.capacity = 8; // purposely pretend that the buffer has less capacity s.t. we can test beyond the range |
universe@535 | 56 | buf.pos = 4; |
universe@535 | 57 | buf.size = 4; |
universe@535 | 58 | } |
universe@535 | 59 | |
universe@535 | 60 | void TearDown() override { |
universe@535 | 61 | cxBufferDestroy(&buf); |
universe@789 | 62 | CX_TEST_ASSERT(cx_testing_allocator_verify(&talloc)); |
universe@535 | 63 | } |
universe@535 | 64 | |
universe@535 | 65 | CxTestingAllocator alloc; |
universe@535 | 66 | CxBuffer buf{}; |
universe@535 | 67 | }; |
universe@535 | 68 | |
universe@535 | 69 | class BufferShiftLeft : public BufferShiftFixture { |
universe@535 | 70 | }; |
universe@535 | 71 | |
universe@535 | 72 | TEST_F(BufferShiftLeft, Zero) { |
universe@789 | 73 | CX_TEST_ASSERT(buf.pos == 4); |
universe@789 | 74 | CX_TEST_ASSERT(buf.size == 4); |
universe@535 | 75 | int ret = cxBufferShiftLeft(&buf, 0); |
universe@789 | 76 | CX_TEST_ASSERT(ret == 0); |
universe@789 | 77 | CX_TEST_ASSERT(buf.pos == 4); |
universe@789 | 78 | CX_TEST_ASSERT(buf.size == 4); |
universe@789 | 79 | CX_TEST_ASSERT(memcmp(buf.space, "test________", 8) == 0); |
universe@535 | 80 | } |
universe@535 | 81 | |
universe@547 | 82 | TEST_F(BufferShiftLeft, ZeroOffsetInterface) { |
universe@789 | 83 | CX_TEST_ASSERT(buf.pos == 4); |
universe@789 | 84 | CX_TEST_ASSERT(buf.size == 4); |
universe@547 | 85 | int ret = cxBufferShift(&buf, -0); |
universe@789 | 86 | CX_TEST_ASSERT(ret == 0); |
universe@789 | 87 | CX_TEST_ASSERT(buf.pos == 4); |
universe@789 | 88 | CX_TEST_ASSERT(buf.size == 4); |
universe@789 | 89 | CX_TEST_ASSERT(memcmp(buf.space, "test________", 8) == 0); |
universe@547 | 90 | } |
universe@547 | 91 | |
universe@535 | 92 | TEST_F(BufferShiftLeft, Standard) { |
universe@789 | 93 | CX_TEST_ASSERT(buf.pos == 4); |
universe@789 | 94 | CX_TEST_ASSERT(buf.size == 4); |
universe@535 | 95 | int ret = cxBufferShiftLeft(&buf, 2); |
universe@789 | 96 | CX_TEST_ASSERT(ret == 0); |
universe@789 | 97 | CX_TEST_ASSERT(buf.pos == 2); |
universe@789 | 98 | CX_TEST_ASSERT(buf.size == 2); |
universe@789 | 99 | CX_TEST_ASSERT(memcmp(buf.space, "stst________", 8) == 0); |
universe@535 | 100 | } |
universe@535 | 101 | |
universe@535 | 102 | TEST_F(BufferShiftLeft, Overshift) { |
universe@535 | 103 | ASSERT_LT(buf.pos, 6); |
universe@535 | 104 | ASSERT_LT(buf.size, 6); |
universe@535 | 105 | int ret = cxBufferShiftLeft(&buf, 6); |
universe@789 | 106 | CX_TEST_ASSERT(ret == 0); |
universe@789 | 107 | CX_TEST_ASSERT(buf.pos == 0); |
universe@789 | 108 | CX_TEST_ASSERT(buf.size == 0); |
universe@789 | 109 | CX_TEST_ASSERT(memcmp(buf.space, "test________", 8) == 0); |
universe@535 | 110 | } |
universe@535 | 111 | |
universe@535 | 112 | TEST_F(BufferShiftLeft, OvershiftPosOnly) { |
universe@535 | 113 | buf.pos = 2; |
universe@789 | 114 | CX_TEST_ASSERT(buf.size == 4); |
universe@535 | 115 | int ret = cxBufferShiftLeft(&buf, 3); |
universe@789 | 116 | CX_TEST_ASSERT(ret == 0); |
universe@789 | 117 | CX_TEST_ASSERT(buf.pos == 0); |
universe@789 | 118 | CX_TEST_ASSERT(buf.size == 1); |
universe@789 | 119 | CX_TEST_ASSERT(memcmp(buf.space, "test________", 8) == 0); |
universe@535 | 120 | } |
universe@535 | 121 | |
universe@535 | 122 | TEST_F(BufferShiftLeft, OffsetInterface) { |
universe@535 | 123 | buf.pos = 3; |
universe@789 | 124 | CX_TEST_ASSERT(buf.size == 4); |
universe@535 | 125 | int ret = cxBufferShift(&buf, -2); |
universe@789 | 126 | CX_TEST_ASSERT(ret == 0); |
universe@789 | 127 | CX_TEST_ASSERT(buf.pos == 1); |
universe@789 | 128 | CX_TEST_ASSERT(buf.size == 2); |
universe@789 | 129 | CX_TEST_ASSERT(memcmp(buf.space, "stst________", 8) == 0); |
universe@535 | 130 | } |
universe@535 | 131 | |
universe@535 | 132 | TEST_F(BufferShiftRight, Zero) { |
universe@789 | 133 | CX_TEST_ASSERT(buf.pos == 4); |
universe@789 | 134 | CX_TEST_ASSERT(buf.size == 4); |
universe@535 | 135 | int ret = cxBufferShiftRight(&buf, 0); |
universe@789 | 136 | CX_TEST_ASSERT(ret == 0); |
universe@789 | 137 | CX_TEST_ASSERT(buf.pos == 4); |
universe@789 | 138 | CX_TEST_ASSERT(buf.size == 4); |
universe@789 | 139 | CX_TEST_ASSERT(memcmp(buf.space, "test________", 8) == 0); |
universe@535 | 140 | } |
universe@535 | 141 | |
universe@547 | 142 | TEST_F(BufferShiftRight, ZeroOffsetInterface) { |
universe@789 | 143 | CX_TEST_ASSERT(buf.pos == 4); |
universe@789 | 144 | CX_TEST_ASSERT(buf.size == 4); |
universe@547 | 145 | int ret = cxBufferShift(&buf, +0); |
universe@789 | 146 | CX_TEST_ASSERT(ret == 0); |
universe@789 | 147 | CX_TEST_ASSERT(buf.pos == 4); |
universe@789 | 148 | CX_TEST_ASSERT(buf.size == 4); |
universe@789 | 149 | CX_TEST_ASSERT(memcmp(buf.space, "test________", 8) == 0); |
universe@547 | 150 | } |
universe@547 | 151 | |
universe@535 | 152 | TEST_F(BufferShiftRight, Standard) { |
universe@789 | 153 | CX_TEST_ASSERT(buf.pos == 4); |
universe@789 | 154 | CX_TEST_ASSERT(buf.size == 4); |
universe@535 | 155 | int ret = cxBufferShiftRight(&buf, 3); |
universe@789 | 156 | CX_TEST_ASSERT(ret == 0); |
universe@789 | 157 | CX_TEST_ASSERT(buf.pos == 7); |
universe@789 | 158 | CX_TEST_ASSERT(buf.size == 7); |
universe@789 | 159 | CX_TEST_ASSERT(memcmp(buf.space, "testest_____", 8) == 0); |
universe@535 | 160 | } |
universe@535 | 161 | |
universe@535 | 162 | TEST_F(BufferShiftRight, OvershiftDiscard) { |
universe@789 | 163 | CX_TEST_ASSERT(buf.pos == 4); |
universe@789 | 164 | CX_TEST_ASSERT(buf.size == 4); |
universe@789 | 165 | CX_TEST_ASSERT(buf.capacity == 8); |
universe@535 | 166 | int ret = cxBufferShiftRight(&buf, 6); |
universe@789 | 167 | CX_TEST_ASSERT(ret == 0); |
universe@789 | 168 | CX_TEST_ASSERT(buf.pos == 8); |
universe@789 | 169 | CX_TEST_ASSERT(buf.size == 8); |
universe@789 | 170 | CX_TEST_ASSERT(buf.capacity == 8); |
universe@789 | 171 | CX_TEST_ASSERT(memcmp(buf.space, "test__te____", 8) == 0); |
universe@535 | 172 | } |
universe@535 | 173 | |
universe@535 | 174 | TEST_F(BufferShiftRight, OvershiftExtend) { |
universe@789 | 175 | CX_TEST_ASSERT(buf.pos == 4); |
universe@789 | 176 | CX_TEST_ASSERT(buf.size == 4); |
universe@789 | 177 | CX_TEST_ASSERT(buf.capacity == 8); |
universe@535 | 178 | buf.flags |= CX_BUFFER_AUTO_EXTEND; |
universe@535 | 179 | int ret = cxBufferShiftRight(&buf, 6); |
universe@789 | 180 | CX_TEST_ASSERT(ret == 0); |
universe@789 | 181 | CX_TEST_ASSERT(buf.pos == 10); |
universe@789 | 182 | CX_TEST_ASSERT(buf.size == 10); |
universe@535 | 183 | EXPECT_GE(buf.capacity, 10); |
universe@789 | 184 | CX_TEST_ASSERT(memcmp(buf.space, "test__test__", 8) == 0); |
universe@535 | 185 | } |
universe@535 | 186 | |
universe@535 | 187 | TEST_F(BufferShiftRight, OffsetInterface) { |
universe@535 | 188 | buf.pos = 3; |
universe@789 | 189 | CX_TEST_ASSERT(buf.size == 4); |
universe@535 | 190 | int ret = cxBufferShift(&buf, 2); |
universe@789 | 191 | CX_TEST_ASSERT(ret == 0); |
universe@789 | 192 | CX_TEST_ASSERT(buf.pos == 5); |
universe@789 | 193 | CX_TEST_ASSERT(buf.size == 6); |
universe@789 | 194 | CX_TEST_ASSERT(memcmp(buf.space, "tetest______", 8) == 0); |
universe@761 | 195 | } |
universe@761 | 196 | |
universe@538 | 197 | class BufferWrite : public ::testing::Test { |
universe@538 | 198 | protected: |
universe@545 | 199 | CxBuffer buf{}, target{}; |
universe@538 | 200 | |
universe@538 | 201 | void SetUp() override { |
universe@789 | 202 | cxBufferInit(&target, NULL, 16, cxDefaultAllocator, CX_BUFFER_AUTO_EXTEND); |
universe@789 | 203 | cxBufferInit(&buf, NULL, 16, cxDefaultAllocator, CX_BUFFER_DEFAULT); |
universe@538 | 204 | buf.capacity = 8; // artificially reduce capacity to check OOB writes |
universe@538 | 205 | memset(buf.space, 0, 16); |
universe@538 | 206 | memcpy(buf.space, "prep", 4); |
universe@538 | 207 | buf.size = buf.pos = 4; |
universe@538 | 208 | } |
universe@538 | 209 | |
universe@538 | 210 | void TearDown() override { |
universe@538 | 211 | cxBufferDestroy(&buf); |
universe@545 | 212 | cxBufferDestroy(&target); |
universe@545 | 213 | } |
universe@545 | 214 | |
universe@545 | 215 | void enableFlushing() { |
universe@545 | 216 | buf.flush_target = ⌖ |
universe@545 | 217 | buf.flush_func = reinterpret_cast<cx_write_func>(cxBufferWrite); |
universe@545 | 218 | buf.flush_blkmax = 1; |
universe@538 | 219 | } |
universe@538 | 220 | }; |
universe@538 | 221 | |
universe@567 | 222 | static size_t mock_write_limited_rate( |
universe@567 | 223 | void const *ptr, |
universe@567 | 224 | size_t size, |
universe@567 | 225 | __attribute__((unused)) size_t nitems, |
universe@567 | 226 | CxBuffer *buffer |
universe@567 | 227 | ) { |
universe@567 | 228 | // simulate limited target drain capacity |
universe@567 | 229 | static bool full = false; |
universe@567 | 230 | if (full) { |
universe@567 | 231 | full = false; |
universe@567 | 232 | return 0; |
universe@567 | 233 | } else { |
universe@567 | 234 | full = true; |
universe@567 | 235 | return cxBufferWrite(ptr, size, nitems > 2 ? 2 : nitems, buffer); |
universe@567 | 236 | } |
universe@567 | 237 | } |
universe@567 | 238 | |
universe@538 | 239 | TEST_F(BufferWrite, SizeOneFit) { |
universe@538 | 240 | const char *data = "test"; |
universe@789 | 241 | CX_TEST_ASSERT(buf.capacity == 8); |
universe@789 | 242 | CX_TEST_ASSERT(buf.pos == 4); |
universe@789 | 243 | CX_TEST_ASSERT(buf.size == 4); |
universe@538 | 244 | size_t written = cxBufferWrite(data, 1, 4, &buf); |
universe@789 | 245 | CX_TEST_ASSERT(written == 4); |
universe@789 | 246 | CX_TEST_ASSERT(buf.size == 8); |
universe@789 | 247 | CX_TEST_ASSERT(buf.pos == 8); |
universe@789 | 248 | CX_TEST_ASSERT(buf.capacity == 8); |
universe@538 | 249 | EXPECT_EQ(memcmp(buf.space, "preptest", 8), 0); |
universe@538 | 250 | } |
universe@538 | 251 | |
universe@538 | 252 | TEST_F(BufferWrite, SizeOneDiscard) { |
universe@538 | 253 | const char *data = "testing"; |
universe@789 | 254 | CX_TEST_ASSERT(buf.capacity == 8); |
universe@789 | 255 | CX_TEST_ASSERT(buf.pos == 4); |
universe@789 | 256 | CX_TEST_ASSERT(buf.size == 4); |
universe@538 | 257 | size_t written = cxBufferWrite(data, 1, 7, &buf); |
universe@789 | 258 | CX_TEST_ASSERT(written == 4); |
universe@789 | 259 | CX_TEST_ASSERT(buf.size == 8); |
universe@789 | 260 | CX_TEST_ASSERT(buf.pos == 8); |
universe@789 | 261 | CX_TEST_ASSERT(buf.capacity == 8); |
universe@538 | 262 | EXPECT_EQ(memcmp(buf.space, "preptest\0", 9), 0); |
universe@538 | 263 | } |
universe@538 | 264 | |
universe@538 | 265 | TEST_F(BufferWrite, SizeOneExtend) { |
universe@538 | 266 | buf.flags |= CX_BUFFER_AUTO_EXTEND; |
universe@538 | 267 | const char *data = "testing"; |
universe@789 | 268 | CX_TEST_ASSERT(buf.capacity == 8); |
universe@789 | 269 | CX_TEST_ASSERT(buf.pos == 4); |
universe@789 | 270 | CX_TEST_ASSERT(buf.size == 4); |
universe@538 | 271 | size_t written = cxBufferWrite(data, 1, 7, &buf); |
universe@789 | 272 | CX_TEST_ASSERT(written == 7); |
universe@789 | 273 | CX_TEST_ASSERT(buf.size == 11); |
universe@789 | 274 | CX_TEST_ASSERT(buf.pos == 11); |
universe@538 | 275 | EXPECT_GE(buf.capacity, 11); |
universe@538 | 276 | EXPECT_EQ(memcmp(buf.space, "preptesting", 11), 0); |
universe@538 | 277 | } |
universe@538 | 278 | |
universe@538 | 279 | TEST_F(BufferWrite, MultibyteFit) { |
universe@541 | 280 | const char *data = "test"; |
universe@789 | 281 | CX_TEST_ASSERT(buf.capacity == 8); |
universe@789 | 282 | CX_TEST_ASSERT(buf.pos == 4); |
universe@789 | 283 | CX_TEST_ASSERT(buf.size == 4); |
universe@541 | 284 | size_t written = cxBufferWrite(data, 2, 2, &buf); |
universe@789 | 285 | CX_TEST_ASSERT(written == 2); |
universe@789 | 286 | CX_TEST_ASSERT(buf.size == 8); |
universe@789 | 287 | CX_TEST_ASSERT(buf.pos == 8); |
universe@789 | 288 | CX_TEST_ASSERT(buf.capacity == 8); |
universe@541 | 289 | EXPECT_EQ(memcmp(buf.space, "preptest", 8), 0); |
universe@538 | 290 | } |
universe@538 | 291 | |
universe@538 | 292 | TEST_F(BufferWrite, MultibyteDiscard) { |
universe@542 | 293 | const char *data = "testing"; |
universe@789 | 294 | CX_TEST_ASSERT(buf.capacity == 8); |
universe@789 | 295 | CX_TEST_ASSERT(buf.size == 4); |
universe@541 | 296 | buf.pos = 3; |
universe@542 | 297 | size_t written = cxBufferWrite(data, 2, 4, &buf); |
universe@538 | 298 | // remember: whole elements are discarded if they do not fit |
universe@789 | 299 | CX_TEST_ASSERT(written == 2); |
universe@789 | 300 | CX_TEST_ASSERT(buf.size == 7); |
universe@789 | 301 | CX_TEST_ASSERT(buf.pos == 7); |
universe@789 | 302 | CX_TEST_ASSERT(buf.capacity == 8); |
universe@541 | 303 | EXPECT_EQ(memcmp(buf.space, "pretest\0", 8), 0); |
universe@538 | 304 | } |
universe@538 | 305 | |
universe@538 | 306 | TEST_F(BufferWrite, MultibyteExtend) { |
universe@541 | 307 | buf.flags |= CX_BUFFER_AUTO_EXTEND; |
universe@541 | 308 | const char *data = "tester"; |
universe@789 | 309 | CX_TEST_ASSERT(buf.capacity == 8); |
universe@789 | 310 | CX_TEST_ASSERT(buf.size == 4); |
universe@541 | 311 | buf.pos = 3; |
universe@541 | 312 | size_t written = cxBufferWrite(data, 2, 3, &buf); |
universe@541 | 313 | // remember: whole elements are discarded if they do not fit |
universe@789 | 314 | CX_TEST_ASSERT(written == 3); |
universe@789 | 315 | CX_TEST_ASSERT(buf.size == 9); |
universe@789 | 316 | CX_TEST_ASSERT(buf.pos == 9); |
universe@541 | 317 | EXPECT_GE(buf.capacity, 9); |
universe@566 | 318 | EXPECT_EQ(memcmp(buf.space, "pretester", 9), 0); |
universe@538 | 319 | } |
universe@538 | 320 | |
universe@538 | 321 | TEST_F(BufferWrite, PutcWrapperFit) { |
universe@789 | 322 | CX_TEST_ASSERT(buf.capacity == 8); |
universe@789 | 323 | CX_TEST_ASSERT(buf.pos == 4); |
universe@789 | 324 | CX_TEST_ASSERT(buf.size == 4); |
universe@565 | 325 | int c = cxBufferPut(&buf, 0x200 | 'a'); |
universe@789 | 326 | CX_TEST_ASSERT(c == 'a'); |
universe@789 | 327 | CX_TEST_ASSERT(buf.size == 5); |
universe@789 | 328 | CX_TEST_ASSERT(buf.pos == 5); |
universe@789 | 329 | CX_TEST_ASSERT(buf.capacity == 8); |
universe@541 | 330 | EXPECT_EQ(memcmp(buf.space, "prepa\0", 6), 0); |
universe@538 | 331 | } |
universe@538 | 332 | |
universe@538 | 333 | TEST_F(BufferWrite, PutcWrapperDiscard) { |
universe@789 | 334 | CX_TEST_ASSERT(buf.capacity == 8); |
universe@789 | 335 | CX_TEST_ASSERT(buf.size == 4); |
universe@541 | 336 | buf.pos = 8; |
universe@565 | 337 | int c = cxBufferPut(&buf, 0x200 | 'a'); |
universe@789 | 338 | CX_TEST_ASSERT(c == EOF); |
universe@789 | 339 | CX_TEST_ASSERT(buf.size == 4); |
universe@789 | 340 | CX_TEST_ASSERT(buf.pos == 8); |
universe@789 | 341 | CX_TEST_ASSERT(buf.capacity == 8); |
universe@541 | 342 | EXPECT_EQ(memcmp(buf.space, "prep\0\0\0\0\0", 9), 0); |
universe@538 | 343 | } |
universe@538 | 344 | |
universe@538 | 345 | TEST_F(BufferWrite, PutcWrapperExtend) { |
universe@541 | 346 | buf.flags |= CX_BUFFER_AUTO_EXTEND; |
universe@789 | 347 | CX_TEST_ASSERT(buf.capacity == 8); |
universe@789 | 348 | CX_TEST_ASSERT(buf.size == 4); |
universe@541 | 349 | buf.pos = 8; |
universe@565 | 350 | int c = cxBufferPut(&buf, 0x200 | 'a'); |
universe@789 | 351 | CX_TEST_ASSERT(c == 'a'); |
universe@789 | 352 | CX_TEST_ASSERT(buf.size == 9); |
universe@789 | 353 | CX_TEST_ASSERT(buf.pos == 9); |
universe@541 | 354 | EXPECT_GE(buf.capacity, 9); |
universe@566 | 355 | EXPECT_EQ(memcmp(buf.space, "prep\0\0\0\0a", 9), 0); |
universe@538 | 356 | } |
universe@538 | 357 | |
universe@538 | 358 | TEST_F(BufferWrite, PutStringWrapperFit) { |
universe@541 | 359 | const char *data = "test"; |
universe@789 | 360 | CX_TEST_ASSERT(buf.capacity == 8); |
universe@789 | 361 | CX_TEST_ASSERT(buf.pos == 4); |
universe@789 | 362 | CX_TEST_ASSERT(buf.size == 4); |
universe@541 | 363 | size_t written = cxBufferPutString(&buf, data); |
universe@789 | 364 | CX_TEST_ASSERT(written == 4); |
universe@789 | 365 | CX_TEST_ASSERT(buf.size == 8); |
universe@789 | 366 | CX_TEST_ASSERT(buf.pos == 8); |
universe@789 | 367 | CX_TEST_ASSERT(buf.capacity == 8); |
universe@541 | 368 | EXPECT_EQ(memcmp(buf.space, "preptest", 8), 0); |
universe@538 | 369 | } |
universe@538 | 370 | |
universe@538 | 371 | TEST_F(BufferWrite, PutStringWrapperDiscard) { |
universe@541 | 372 | const char *data = "testing"; |
universe@789 | 373 | CX_TEST_ASSERT(buf.capacity == 8); |
universe@789 | 374 | CX_TEST_ASSERT(buf.pos == 4); |
universe@789 | 375 | CX_TEST_ASSERT(buf.size == 4); |
universe@541 | 376 | size_t written = cxBufferPutString(&buf, data); |
universe@789 | 377 | CX_TEST_ASSERT(written == 4); |
universe@789 | 378 | CX_TEST_ASSERT(buf.size == 8); |
universe@789 | 379 | CX_TEST_ASSERT(buf.pos == 8); |
universe@789 | 380 | CX_TEST_ASSERT(buf.capacity == 8); |
universe@541 | 381 | EXPECT_EQ(memcmp(buf.space, "preptest\0", 9), 0); |
universe@538 | 382 | } |
universe@538 | 383 | |
universe@538 | 384 | TEST_F(BufferWrite, PutStringWrapperExtend) { |
universe@541 | 385 | buf.flags |= CX_BUFFER_AUTO_EXTEND; |
universe@541 | 386 | const char *data = "testing"; |
universe@789 | 387 | CX_TEST_ASSERT(buf.capacity == 8); |
universe@789 | 388 | CX_TEST_ASSERT(buf.pos == 4); |
universe@789 | 389 | CX_TEST_ASSERT(buf.size == 4); |
universe@541 | 390 | size_t written = cxBufferPutString(&buf, data); |
universe@789 | 391 | CX_TEST_ASSERT(written == 7); |
universe@789 | 392 | CX_TEST_ASSERT(buf.size == 11); |
universe@789 | 393 | CX_TEST_ASSERT(buf.pos == 11); |
universe@541 | 394 | EXPECT_GE(buf.capacity, 11); |
universe@541 | 395 | EXPECT_EQ(memcmp(buf.space, "preptesting", 11), 0); |
universe@541 | 396 | } |
universe@538 | 397 | |
universe@541 | 398 | TEST_F(BufferWrite, MultOverflow) { |
universe@541 | 399 | const char *data = "testing"; |
universe@789 | 400 | CX_TEST_ASSERT(buf.capacity == 8); |
universe@789 | 401 | CX_TEST_ASSERT(buf.pos == 4); |
universe@789 | 402 | CX_TEST_ASSERT(buf.size == 4); |
universe@541 | 403 | size_t written = cxBufferWrite(data, 8, SIZE_MAX / 4, &buf); |
universe@789 | 404 | CX_TEST_ASSERT(written == 0); |
universe@789 | 405 | CX_TEST_ASSERT(buf.capacity == 8); |
universe@789 | 406 | CX_TEST_ASSERT(buf.pos == 4); |
universe@789 | 407 | CX_TEST_ASSERT(buf.size == 4); |
universe@541 | 408 | EXPECT_EQ(memcmp(buf.space, "prep\0", 5), 0); |
universe@538 | 409 | } |
universe@541 | 410 | |
universe@541 | 411 | TEST_F(BufferWrite, MaxCapaOverflow) { |
universe@541 | 412 | buf.flags |= CX_BUFFER_AUTO_EXTEND; |
universe@541 | 413 | const char *data = "testing"; |
universe@789 | 414 | CX_TEST_ASSERT(buf.capacity == 8); |
universe@789 | 415 | CX_TEST_ASSERT(buf.pos == 4); |
universe@789 | 416 | CX_TEST_ASSERT(buf.size == 4); |
universe@541 | 417 | size_t written = cxBufferWrite(data, 1, SIZE_MAX - 2, &buf); |
universe@789 | 418 | CX_TEST_ASSERT(written == 0); |
universe@789 | 419 | CX_TEST_ASSERT(buf.capacity == 8); |
universe@789 | 420 | CX_TEST_ASSERT(buf.pos == 4); |
universe@789 | 421 | CX_TEST_ASSERT(buf.size == 4); |
universe@541 | 422 | EXPECT_EQ(memcmp(buf.space, "prep\0", 5), 0); |
universe@541 | 423 | } |
universe@541 | 424 | |
universe@541 | 425 | TEST_F(BufferWrite, OnlyOverwrite) { |
universe@541 | 426 | buf.flags |= CX_BUFFER_AUTO_EXTEND; |
universe@789 | 427 | CX_TEST_ASSERT(buf.capacity == 8); |
universe@541 | 428 | memcpy(buf.space, "preptest", 8); |
universe@541 | 429 | buf.pos = 3; |
universe@541 | 430 | buf.size = 8; |
universe@541 | 431 | size_t written = cxBufferWrite("XXX", 2, 2, &buf); |
universe@789 | 432 | CX_TEST_ASSERT(written == 2); |
universe@789 | 433 | CX_TEST_ASSERT(buf.capacity == 8); |
universe@789 | 434 | CX_TEST_ASSERT(buf.size == 8); |
universe@789 | 435 | CX_TEST_ASSERT(buf.pos == 7); |
universe@541 | 436 | EXPECT_EQ(memcmp(buf.space, "preXXX\0t", 8), 0); |
universe@541 | 437 | } |
universe@545 | 438 | |
universe@545 | 439 | TEST_F(BufferWrite, FlushAtCapacity) { |
universe@545 | 440 | enableFlushing(); |
universe@789 | 441 | CX_TEST_ASSERT(buf.capacity == 8); |
universe@789 | 442 | CX_TEST_ASSERT(buf.pos == 4); |
universe@545 | 443 | size_t written = cxBufferWrite("foo", 1, 3, &buf); |
universe@789 | 444 | CX_TEST_ASSERT(written == 3); |
universe@789 | 445 | CX_TEST_ASSERT(buf.pos == 7); |
universe@789 | 446 | CX_TEST_ASSERT(buf.size == 7); |
universe@789 | 447 | CX_TEST_ASSERT(target.pos == 0); |
universe@789 | 448 | CX_TEST_ASSERT(target.size == 0); |
universe@545 | 449 | written = cxBufferWrite("hello", 1, 5, &buf); |
universe@789 | 450 | CX_TEST_ASSERT(written == 5); |
universe@789 | 451 | CX_TEST_ASSERT(buf.pos == 0); |
universe@789 | 452 | CX_TEST_ASSERT(buf.size == 0); |
universe@789 | 453 | CX_TEST_ASSERT(buf.capacity == 8); |
universe@789 | 454 | CX_TEST_ASSERT(target.pos == 12); |
universe@789 | 455 | CX_TEST_ASSERT(target.size == 12); |
universe@545 | 456 | EXPECT_EQ(memcmp(target.space, "prepfoohello", 12), 0); |
universe@545 | 457 | } |
universe@546 | 458 | |
universe@546 | 459 | TEST_F(BufferWrite, FlushAtThreshold) { |
universe@546 | 460 | enableFlushing(); |
universe@546 | 461 | buf.flush_threshold = 12; |
universe@546 | 462 | buf.flags |= CX_BUFFER_AUTO_EXTEND; |
universe@789 | 463 | CX_TEST_ASSERT(buf.capacity == 8); |
universe@789 | 464 | CX_TEST_ASSERT(buf.pos == 4); |
universe@546 | 465 | size_t written = cxBufferWrite("foobar", 1, 6, &buf); |
universe@789 | 466 | CX_TEST_ASSERT(written == 6); |
universe@789 | 467 | CX_TEST_ASSERT(buf.pos == 10); |
universe@789 | 468 | CX_TEST_ASSERT(buf.size == 10); |
universe@546 | 469 | ASSERT_GE(buf.capacity, 10); |
universe@546 | 470 | ASSERT_LE(buf.capacity, 12); |
universe@789 | 471 | CX_TEST_ASSERT(target.pos == 0); |
universe@789 | 472 | CX_TEST_ASSERT(target.size == 0); |
universe@546 | 473 | written = cxBufferWrite("hello", 1, 5, &buf); |
universe@789 | 474 | CX_TEST_ASSERT(written == 5); |
universe@789 | 475 | CX_TEST_ASSERT(buf.pos == 0); |
universe@789 | 476 | CX_TEST_ASSERT(buf.size == 0); |
universe@546 | 477 | EXPECT_LE(buf.capacity, 12); |
universe@789 | 478 | CX_TEST_ASSERT(target.pos == 15); |
universe@789 | 479 | CX_TEST_ASSERT(target.size == 15); |
universe@546 | 480 | EXPECT_EQ(memcmp(target.space, "prepfoobarhello", 15), 0); |
universe@546 | 481 | } |
universe@547 | 482 | |
universe@567 | 483 | TEST_F(BufferWrite, FlushRateLimited) { |
universe@567 | 484 | enableFlushing(); |
universe@567 | 485 | // limit the rate of the flush function and the capacity of the target |
universe@567 | 486 | target.capacity = 16; |
universe@567 | 487 | target.flags &= ~CX_BUFFER_AUTO_EXTEND; |
universe@567 | 488 | buf.flush_func = (cx_write_func) mock_write_limited_rate; |
universe@789 | 489 | CX_TEST_ASSERT(buf.capacity == 8); |
universe@789 | 490 | CX_TEST_ASSERT(buf.pos == 4); |
universe@567 | 491 | size_t written = cxBufferWrite("foo", 1, 3, &buf); |
universe@789 | 492 | CX_TEST_ASSERT(written == 3); |
universe@789 | 493 | CX_TEST_ASSERT(buf.pos == 7); |
universe@789 | 494 | CX_TEST_ASSERT(buf.size == 7); |
universe@789 | 495 | CX_TEST_ASSERT(target.pos == 0); |
universe@789 | 496 | CX_TEST_ASSERT(target.size == 0); |
universe@567 | 497 | written = cxBufferWrite("hello, world!", 1, 13, &buf); |
universe@567 | 498 | // " world!" fits into this buffer, the remaining stuff is flushed out |
universe@789 | 499 | CX_TEST_ASSERT(written == 13); |
universe@789 | 500 | CX_TEST_ASSERT(buf.pos == 7); |
universe@789 | 501 | CX_TEST_ASSERT(buf.size == 7); |
universe@789 | 502 | CX_TEST_ASSERT(buf.capacity == 8); |
universe@567 | 503 | EXPECT_EQ(memcmp(buf.space, " world!", 7), 0); |
universe@789 | 504 | CX_TEST_ASSERT(target.pos == 13); |
universe@789 | 505 | CX_TEST_ASSERT(target.size == 13); |
universe@789 | 506 | CX_TEST_ASSERT(target.capacity == 16); |
universe@567 | 507 | EXPECT_EQ(memcmp(target.space, "prepfoohello,", 13), 0); |
universe@567 | 508 | } |
universe@567 | 509 | |
universe@548 | 510 | |
universe@548 | 511 | TEST_F(BufferEof, Reached) { |
universe@548 | 512 | buf.pos = buf.size; |
universe@789 | 513 | CX_TEST_ASSERT(cxBufferEof(&buf)); |
universe@548 | 514 | buf.pos = buf.size - 1; |
universe@789 | 515 | CX_TEST_ASSERT(!cxBufferEof(&buf)); |
universe@548 | 516 | cxBufferPut(&buf, 'a'); |
universe@789 | 517 | CX_TEST_ASSERT(cxBufferEof(&buf)); |
universe@548 | 518 | } |
universe@548 | 519 | |
universe@548 | 520 | TEST_F(BufferEof, NotReached) { |
universe@548 | 521 | buf.pos = buf.size - 1; |
universe@789 | 522 | CX_TEST_ASSERT(!cxBufferEof(&buf)); |
universe@548 | 523 | buf.pos = 0; |
universe@548 | 524 | cxBufferWrite("test", 1, 5, &buf); |
universe@789 | 525 | CX_TEST_ASSERT(!cxBufferEof(&buf)); |
universe@548 | 526 | } |
universe@568 | 527 | |
universe@568 | 528 | class BufferRead : public ::testing::Test { |
universe@568 | 529 | protected: |
universe@568 | 530 | CxBuffer buf{}; |
universe@568 | 531 | |
universe@568 | 532 | void SetUp() override { |
universe@789 | 533 | cxBufferInit(&buf, NULL, 16, cxDefaultAllocator, CX_BUFFER_DEFAULT); |
universe@568 | 534 | buf.capacity = 8; // artificially reduce capacity to check OOB writes |
universe@568 | 535 | memset(buf.space, 0, 16); |
universe@568 | 536 | memcpy(buf.space, "some data", 9); |
universe@568 | 537 | buf.size = 9; |
universe@568 | 538 | } |
universe@568 | 539 | |
universe@568 | 540 | void TearDown() override { |
universe@568 | 541 | cxBufferDestroy(&buf); |
universe@568 | 542 | } |
universe@568 | 543 | }; |
universe@568 | 544 | |
universe@568 | 545 | TEST_F(BufferRead, GetByte) { |
universe@568 | 546 | buf.pos = 2; |
universe@568 | 547 | EXPECT_EQ(cxBufferGet(&buf), 'm'); |
universe@568 | 548 | EXPECT_EQ(cxBufferGet(&buf), 'e'); |
universe@568 | 549 | EXPECT_EQ(cxBufferGet(&buf), ' '); |
universe@568 | 550 | EXPECT_EQ(cxBufferGet(&buf), 'd'); |
universe@789 | 551 | CX_TEST_ASSERT(buf.pos == 6); |
universe@568 | 552 | } |
universe@568 | 553 | |
universe@568 | 554 | TEST_F(BufferRead, GetEof) { |
universe@568 | 555 | buf.pos = buf.size; |
universe@568 | 556 | EXPECT_EQ(cxBufferGet(&buf), EOF); |
universe@568 | 557 | } |
universe@569 | 558 | |
universe@569 | 559 | TEST_F(BufferRead, ReadWithinBounds) { |
universe@569 | 560 | buf.pos = 2; |
universe@569 | 561 | char target[4]; |
universe@569 | 562 | auto read = cxBufferRead(&target, 1, 4, &buf); |
universe@789 | 563 | CX_TEST_ASSERT(read == 4); |
universe@569 | 564 | EXPECT_EQ(memcmp(&target, "me d", 4), 0); |
universe@789 | 565 | CX_TEST_ASSERT(buf.pos == 6); |
universe@569 | 566 | } |
universe@569 | 567 | |
universe@569 | 568 | TEST_F(BufferRead, ReadOutOfBounds) { |
universe@569 | 569 | buf.pos = 6; |
universe@569 | 570 | char target[4]; |
universe@569 | 571 | auto read = cxBufferRead(&target, 1, 4, &buf); |
universe@789 | 572 | CX_TEST_ASSERT(read == 3); |
universe@569 | 573 | EXPECT_EQ(memcmp(&target, "ata", 3), 0); |
universe@789 | 574 | CX_TEST_ASSERT(buf.pos == 9); |
universe@569 | 575 | } |
universe@569 | 576 | |
universe@569 | 577 | TEST_F(BufferRead, ReadOutOfBoundsMultibyte) { |
universe@569 | 578 | buf.pos = 6; |
universe@569 | 579 | char target[4]; |
universe@569 | 580 | target[2] = '\0'; |
universe@569 | 581 | auto read = cxBufferRead(&target, 2, 2, &buf); |
universe@789 | 582 | CX_TEST_ASSERT(read == 1); |
universe@569 | 583 | EXPECT_EQ(memcmp(&target, "at\0", 3), 0); |
universe@789 | 584 | CX_TEST_ASSERT(buf.pos == 8); |
universe@569 | 585 | } |
universe@569 | 586 | |
universe@569 | 587 | TEST_F(BufferRead, ReadEof) { |
universe@569 | 588 | buf.pos = 9; |
universe@569 | 589 | char target[4]; |
universe@569 | 590 | auto read = cxBufferRead(&target, 1, 1, &buf); |
universe@789 | 591 | CX_TEST_ASSERT(read == 0); |
universe@789 | 592 | CX_TEST_ASSERT(buf.pos == 9); |
universe@569 | 593 | } |