Fri, 07 Jul 2023 20:22:30 +0200
improve the CSV example
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@548 | 37 | cxBufferInit(&buf, nullptr, 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@539 | 49 | static void expect_default_flush_config(CxBuffer *buf) { |
universe@539 | 50 | EXPECT_EQ(buf->flush_blkmax, 0); |
universe@539 | 51 | EXPECT_EQ(buf->flush_blksize, 4096); |
universe@539 | 52 | EXPECT_EQ(buf->flush_threshold, SIZE_MAX); |
universe@539 | 53 | EXPECT_EQ(buf->flush_func, nullptr); |
universe@541 | 54 | EXPECT_EQ(buf->flush_target, nullptr); |
universe@539 | 55 | } |
universe@539 | 56 | |
universe@535 | 57 | TEST(BufferInit, WrapSpace) { |
universe@535 | 58 | CxTestingAllocator alloc; |
universe@530 | 59 | CxBuffer buf; |
universe@535 | 60 | void *space = cxMalloc(&alloc, 16); |
universe@535 | 61 | cxBufferInit(&buf, space, 16, &alloc, CX_BUFFER_DEFAULT); |
universe@539 | 62 | expect_default_flush_config(&buf); |
universe@530 | 63 | EXPECT_EQ(buf.space, space); |
universe@530 | 64 | EXPECT_EQ(buf.flags & CX_BUFFER_AUTO_EXTEND, 0); |
universe@530 | 65 | EXPECT_EQ(buf.flags & CX_BUFFER_FREE_CONTENTS, 0); |
universe@530 | 66 | EXPECT_EQ(buf.pos, 0); |
universe@530 | 67 | EXPECT_EQ(buf.size, 0); |
universe@530 | 68 | EXPECT_EQ(buf.capacity, 16); |
universe@535 | 69 | EXPECT_EQ(buf.allocator, &alloc); |
universe@530 | 70 | cxBufferDestroy(&buf); |
universe@535 | 71 | EXPECT_FALSE(alloc.verify()); |
universe@535 | 72 | cxFree(&alloc, space); |
universe@535 | 73 | EXPECT_TRUE(alloc.verify()); |
universe@530 | 74 | } |
universe@530 | 75 | |
universe@539 | 76 | TEST(BufferInit, WrapSpaceAutoExtend) { |
universe@539 | 77 | CxTestingAllocator alloc; |
universe@539 | 78 | CxBuffer buf; |
universe@539 | 79 | void *space = cxMalloc(&alloc, 16); |
universe@539 | 80 | cxBufferInit(&buf, space, 16, &alloc, CX_BUFFER_AUTO_EXTEND); |
universe@539 | 81 | expect_default_flush_config(&buf); |
universe@539 | 82 | EXPECT_EQ(buf.space, space); |
universe@539 | 83 | EXPECT_EQ(buf.flags & CX_BUFFER_AUTO_EXTEND, CX_BUFFER_AUTO_EXTEND); |
universe@539 | 84 | EXPECT_EQ(buf.flags & CX_BUFFER_FREE_CONTENTS, 0); |
universe@539 | 85 | EXPECT_EQ(buf.pos, 0); |
universe@539 | 86 | EXPECT_EQ(buf.size, 0); |
universe@539 | 87 | EXPECT_EQ(buf.capacity, 16); |
universe@539 | 88 | EXPECT_EQ(buf.allocator, &alloc); |
universe@539 | 89 | cxBufferDestroy(&buf); |
universe@539 | 90 | EXPECT_FALSE(alloc.verify()); |
universe@539 | 91 | cxFree(&alloc, space); |
universe@539 | 92 | EXPECT_TRUE(alloc.verify()); |
universe@539 | 93 | } |
universe@539 | 94 | |
universe@535 | 95 | TEST(BufferInit, WrapSpaceAutoFree) { |
universe@535 | 96 | CxTestingAllocator alloc; |
universe@530 | 97 | CxBuffer buf; |
universe@535 | 98 | void *space = cxMalloc(&alloc, 16); |
universe@535 | 99 | cxBufferInit(&buf, space, 16, &alloc, CX_BUFFER_FREE_CONTENTS); |
universe@539 | 100 | expect_default_flush_config(&buf); |
universe@530 | 101 | EXPECT_EQ(buf.space, space); |
universe@530 | 102 | EXPECT_EQ(buf.flags & CX_BUFFER_AUTO_EXTEND, 0); |
universe@530 | 103 | EXPECT_EQ(buf.flags & CX_BUFFER_FREE_CONTENTS, CX_BUFFER_FREE_CONTENTS); |
universe@530 | 104 | EXPECT_EQ(buf.pos, 0); |
universe@530 | 105 | EXPECT_EQ(buf.size, 0); |
universe@530 | 106 | EXPECT_EQ(buf.capacity, 16); |
universe@535 | 107 | EXPECT_EQ(buf.allocator, &alloc); |
universe@535 | 108 | EXPECT_FALSE(alloc.verify()); |
universe@530 | 109 | cxBufferDestroy(&buf); |
universe@535 | 110 | EXPECT_TRUE(alloc.verify()); |
universe@530 | 111 | } |
universe@535 | 112 | |
universe@535 | 113 | TEST(BufferInit, FreshSpace) { |
universe@535 | 114 | CxTestingAllocator alloc; |
universe@535 | 115 | CxBuffer buf; |
universe@535 | 116 | cxBufferInit(&buf, nullptr, 8, &alloc, CX_BUFFER_DEFAULT); |
universe@539 | 117 | expect_default_flush_config(&buf); |
universe@535 | 118 | EXPECT_NE(buf.space, nullptr); |
universe@535 | 119 | EXPECT_EQ(buf.flags & CX_BUFFER_AUTO_EXTEND, 0); |
universe@535 | 120 | EXPECT_EQ(buf.flags & CX_BUFFER_FREE_CONTENTS, CX_BUFFER_FREE_CONTENTS); |
universe@535 | 121 | EXPECT_EQ(buf.pos, 0); |
universe@535 | 122 | EXPECT_EQ(buf.size, 0); |
universe@535 | 123 | EXPECT_EQ(buf.capacity, 8); |
universe@535 | 124 | EXPECT_EQ(buf.allocator, &alloc); |
universe@535 | 125 | EXPECT_FALSE(alloc.verify()); // space is still allocated |
universe@535 | 126 | cxBufferDestroy(&buf); |
universe@535 | 127 | EXPECT_TRUE(alloc.verify()); |
universe@535 | 128 | } |
universe@535 | 129 | |
universe@683 | 130 | TEST(BufferInit, OnHeap) { |
universe@683 | 131 | CxTestingAllocator alloc; |
universe@683 | 132 | CxBuffer *buf; |
universe@683 | 133 | void *space = cxMalloc(&alloc, 16); |
universe@683 | 134 | buf = cxBufferCreate(space, 16, &alloc, CX_BUFFER_FREE_CONTENTS); |
universe@683 | 135 | EXPECT_NE(buf, nullptr); |
universe@683 | 136 | expect_default_flush_config(buf); |
universe@683 | 137 | EXPECT_EQ(buf->space, space); |
universe@683 | 138 | EXPECT_EQ(buf->flags & CX_BUFFER_AUTO_EXTEND, 0); |
universe@683 | 139 | EXPECT_EQ(buf->flags & CX_BUFFER_FREE_CONTENTS, CX_BUFFER_FREE_CONTENTS); |
universe@683 | 140 | EXPECT_EQ(buf->pos, 0); |
universe@683 | 141 | EXPECT_EQ(buf->size, 0); |
universe@683 | 142 | EXPECT_EQ(buf->capacity, 16); |
universe@683 | 143 | EXPECT_EQ(buf->allocator, &alloc); |
universe@683 | 144 | cxBufferFree(buf); |
universe@683 | 145 | EXPECT_TRUE(alloc.verify()); |
universe@683 | 146 | } |
universe@683 | 147 | |
universe@535 | 148 | class BufferShiftFixture : public ::testing::Test { |
universe@535 | 149 | protected: |
universe@535 | 150 | void SetUp() override { |
universe@535 | 151 | ASSERT_TRUE(alloc.verify()); |
universe@535 | 152 | cxBufferInit(&buf, nullptr, 16, &alloc, CX_BUFFER_DEFAULT); |
universe@535 | 153 | memcpy(buf.space, "test____________", 16); |
universe@535 | 154 | buf.capacity = 8; // purposely pretend that the buffer has less capacity s.t. we can test beyond the range |
universe@535 | 155 | buf.pos = 4; |
universe@535 | 156 | buf.size = 4; |
universe@535 | 157 | } |
universe@535 | 158 | |
universe@535 | 159 | void TearDown() override { |
universe@535 | 160 | cxBufferDestroy(&buf); |
universe@535 | 161 | EXPECT_TRUE(alloc.verify()); |
universe@535 | 162 | } |
universe@535 | 163 | |
universe@535 | 164 | CxTestingAllocator alloc; |
universe@535 | 165 | CxBuffer buf{}; |
universe@535 | 166 | }; |
universe@535 | 167 | |
universe@535 | 168 | class BufferShiftLeft : public BufferShiftFixture { |
universe@535 | 169 | }; |
universe@535 | 170 | |
universe@535 | 171 | TEST_F(BufferShiftLeft, Zero) { |
universe@535 | 172 | ASSERT_EQ(buf.pos, 4); |
universe@535 | 173 | ASSERT_EQ(buf.size, 4); |
universe@535 | 174 | int ret = cxBufferShiftLeft(&buf, 0); |
universe@535 | 175 | EXPECT_EQ(ret, 0); |
universe@535 | 176 | EXPECT_EQ(buf.pos, 4); |
universe@535 | 177 | EXPECT_EQ(buf.size, 4); |
universe@535 | 178 | EXPECT_TRUE(memcmp(buf.space, "test________", 8) == 0); |
universe@535 | 179 | } |
universe@535 | 180 | |
universe@547 | 181 | TEST_F(BufferShiftLeft, ZeroOffsetInterface) { |
universe@547 | 182 | ASSERT_EQ(buf.pos, 4); |
universe@547 | 183 | ASSERT_EQ(buf.size, 4); |
universe@547 | 184 | int ret = cxBufferShift(&buf, -0); |
universe@547 | 185 | EXPECT_EQ(ret, 0); |
universe@547 | 186 | EXPECT_EQ(buf.pos, 4); |
universe@547 | 187 | EXPECT_EQ(buf.size, 4); |
universe@547 | 188 | EXPECT_TRUE(memcmp(buf.space, "test________", 8) == 0); |
universe@547 | 189 | } |
universe@547 | 190 | |
universe@535 | 191 | TEST_F(BufferShiftLeft, Standard) { |
universe@535 | 192 | ASSERT_EQ(buf.pos, 4); |
universe@535 | 193 | ASSERT_EQ(buf.size, 4); |
universe@535 | 194 | int ret = cxBufferShiftLeft(&buf, 2); |
universe@535 | 195 | EXPECT_EQ(ret, 0); |
universe@535 | 196 | EXPECT_EQ(buf.pos, 2); |
universe@535 | 197 | EXPECT_EQ(buf.size, 2); |
universe@535 | 198 | EXPECT_TRUE(memcmp(buf.space, "stst________", 8) == 0); |
universe@535 | 199 | } |
universe@535 | 200 | |
universe@535 | 201 | TEST_F(BufferShiftLeft, Overshift) { |
universe@535 | 202 | ASSERT_LT(buf.pos, 6); |
universe@535 | 203 | ASSERT_LT(buf.size, 6); |
universe@535 | 204 | int ret = cxBufferShiftLeft(&buf, 6); |
universe@535 | 205 | EXPECT_EQ(ret, 0); |
universe@535 | 206 | EXPECT_EQ(buf.pos, 0); |
universe@535 | 207 | EXPECT_EQ(buf.size, 0); |
universe@535 | 208 | EXPECT_TRUE(memcmp(buf.space, "test________", 8) == 0); |
universe@535 | 209 | } |
universe@535 | 210 | |
universe@535 | 211 | TEST_F(BufferShiftLeft, OvershiftPosOnly) { |
universe@535 | 212 | buf.pos = 2; |
universe@535 | 213 | ASSERT_EQ(buf.size, 4); |
universe@535 | 214 | int ret = cxBufferShiftLeft(&buf, 3); |
universe@535 | 215 | EXPECT_EQ(ret, 0); |
universe@535 | 216 | EXPECT_EQ(buf.pos, 0); |
universe@535 | 217 | EXPECT_EQ(buf.size, 1); |
universe@535 | 218 | EXPECT_TRUE(memcmp(buf.space, "test________", 8) == 0); |
universe@535 | 219 | } |
universe@535 | 220 | |
universe@535 | 221 | TEST_F(BufferShiftLeft, OffsetInterface) { |
universe@535 | 222 | buf.pos = 3; |
universe@535 | 223 | ASSERT_EQ(buf.size, 4); |
universe@535 | 224 | int ret = cxBufferShift(&buf, -2); |
universe@535 | 225 | EXPECT_EQ(ret, 0); |
universe@535 | 226 | EXPECT_EQ(buf.pos, 1); |
universe@535 | 227 | EXPECT_EQ(buf.size, 2); |
universe@535 | 228 | EXPECT_TRUE(memcmp(buf.space, "stst________", 8) == 0); |
universe@535 | 229 | } |
universe@535 | 230 | |
universe@535 | 231 | class BufferShiftRight : public BufferShiftFixture { |
universe@535 | 232 | }; |
universe@535 | 233 | |
universe@535 | 234 | TEST_F(BufferShiftRight, Zero) { |
universe@535 | 235 | ASSERT_EQ(buf.pos, 4); |
universe@535 | 236 | ASSERT_EQ(buf.size, 4); |
universe@535 | 237 | int ret = cxBufferShiftRight(&buf, 0); |
universe@535 | 238 | EXPECT_EQ(ret, 0); |
universe@535 | 239 | EXPECT_EQ(buf.pos, 4); |
universe@535 | 240 | EXPECT_EQ(buf.size, 4); |
universe@535 | 241 | EXPECT_TRUE(memcmp(buf.space, "test________", 8) == 0); |
universe@535 | 242 | } |
universe@535 | 243 | |
universe@547 | 244 | TEST_F(BufferShiftRight, ZeroOffsetInterface) { |
universe@547 | 245 | ASSERT_EQ(buf.pos, 4); |
universe@547 | 246 | ASSERT_EQ(buf.size, 4); |
universe@547 | 247 | int ret = cxBufferShift(&buf, +0); |
universe@547 | 248 | EXPECT_EQ(ret, 0); |
universe@547 | 249 | EXPECT_EQ(buf.pos, 4); |
universe@547 | 250 | EXPECT_EQ(buf.size, 4); |
universe@547 | 251 | EXPECT_TRUE(memcmp(buf.space, "test________", 8) == 0); |
universe@547 | 252 | } |
universe@547 | 253 | |
universe@535 | 254 | TEST_F(BufferShiftRight, Standard) { |
universe@535 | 255 | ASSERT_EQ(buf.pos, 4); |
universe@535 | 256 | ASSERT_EQ(buf.size, 4); |
universe@535 | 257 | int ret = cxBufferShiftRight(&buf, 3); |
universe@535 | 258 | EXPECT_EQ(ret, 0); |
universe@535 | 259 | EXPECT_EQ(buf.pos, 7); |
universe@535 | 260 | EXPECT_EQ(buf.size, 7); |
universe@535 | 261 | EXPECT_TRUE(memcmp(buf.space, "testest_____", 8) == 0); |
universe@535 | 262 | } |
universe@535 | 263 | |
universe@535 | 264 | TEST_F(BufferShiftRight, OvershiftDiscard) { |
universe@535 | 265 | ASSERT_EQ(buf.pos, 4); |
universe@535 | 266 | ASSERT_EQ(buf.size, 4); |
universe@535 | 267 | ASSERT_EQ(buf.capacity, 8); |
universe@535 | 268 | int ret = cxBufferShiftRight(&buf, 6); |
universe@535 | 269 | EXPECT_EQ(ret, 0); |
universe@535 | 270 | EXPECT_EQ(buf.pos, 8); |
universe@535 | 271 | EXPECT_EQ(buf.size, 8); |
universe@535 | 272 | EXPECT_EQ(buf.capacity, 8); |
universe@535 | 273 | EXPECT_TRUE(memcmp(buf.space, "test__te____", 8) == 0); |
universe@535 | 274 | } |
universe@535 | 275 | |
universe@535 | 276 | TEST_F(BufferShiftRight, OvershiftExtend) { |
universe@535 | 277 | ASSERT_EQ(buf.pos, 4); |
universe@535 | 278 | ASSERT_EQ(buf.size, 4); |
universe@535 | 279 | ASSERT_EQ(buf.capacity, 8); |
universe@535 | 280 | buf.flags |= CX_BUFFER_AUTO_EXTEND; |
universe@535 | 281 | int ret = cxBufferShiftRight(&buf, 6); |
universe@535 | 282 | EXPECT_EQ(ret, 0); |
universe@535 | 283 | EXPECT_EQ(buf.pos, 10); |
universe@535 | 284 | EXPECT_EQ(buf.size, 10); |
universe@535 | 285 | EXPECT_GE(buf.capacity, 10); |
universe@535 | 286 | EXPECT_TRUE(memcmp(buf.space, "test__test__", 8) == 0); |
universe@535 | 287 | } |
universe@535 | 288 | |
universe@535 | 289 | TEST_F(BufferShiftRight, OffsetInterface) { |
universe@535 | 290 | buf.pos = 3; |
universe@535 | 291 | ASSERT_EQ(buf.size, 4); |
universe@535 | 292 | int ret = cxBufferShift(&buf, 2); |
universe@535 | 293 | EXPECT_EQ(ret, 0); |
universe@535 | 294 | EXPECT_EQ(buf.pos, 5); |
universe@535 | 295 | EXPECT_EQ(buf.size, 6); |
universe@535 | 296 | EXPECT_TRUE(memcmp(buf.space, "tetest______", 8) == 0); |
universe@535 | 297 | } |
universe@535 | 298 | |
universe@535 | 299 | TEST(BufferMinimumCapacity, Sufficient) { |
universe@535 | 300 | CxTestingAllocator alloc; |
universe@535 | 301 | auto space = cxMalloc(&alloc, 8); |
universe@535 | 302 | CxBuffer buf; |
universe@535 | 303 | cxBufferInit(&buf, space, 8, &alloc, CX_BUFFER_FREE_CONTENTS); |
universe@535 | 304 | memcpy(space, "Testing", 8); |
universe@535 | 305 | buf.size = 8; |
universe@535 | 306 | cxBufferMinimumCapacity(&buf, 6); |
universe@535 | 307 | EXPECT_EQ(buf.capacity, 8); |
universe@535 | 308 | EXPECT_EQ(buf.size, 8); |
universe@535 | 309 | EXPECT_TRUE(memcmp(buf.space, "Testing", 8) == 0); |
universe@535 | 310 | cxBufferDestroy(&buf); |
universe@535 | 311 | EXPECT_TRUE(alloc.verify()); |
universe@535 | 312 | } |
universe@535 | 313 | |
universe@535 | 314 | TEST(BufferMinimumCapacity, Extend) { |
universe@535 | 315 | CxTestingAllocator alloc; |
universe@535 | 316 | auto space = cxMalloc(&alloc, 8); |
universe@535 | 317 | CxBuffer buf; |
universe@535 | 318 | cxBufferInit(&buf, space, 8, &alloc, CX_BUFFER_FREE_CONTENTS); // NO auto extend! |
universe@535 | 319 | memcpy(space, "Testing", 8); |
universe@535 | 320 | buf.size = 8; |
universe@535 | 321 | cxBufferMinimumCapacity(&buf, 16); |
universe@535 | 322 | EXPECT_EQ(buf.capacity, 16); |
universe@535 | 323 | EXPECT_EQ(buf.size, 8); |
universe@535 | 324 | EXPECT_TRUE(memcmp(buf.space, "Testing", 8) == 0); |
universe@535 | 325 | cxBufferDestroy(&buf); |
universe@535 | 326 | EXPECT_TRUE(alloc.verify()); |
universe@535 | 327 | } |
universe@536 | 328 | |
universe@536 | 329 | TEST(BufferClear, Test) { |
universe@536 | 330 | char space[16]; |
universe@536 | 331 | strcpy(space, "clear test"); |
universe@536 | 332 | CxBuffer buf; |
universe@536 | 333 | cxBufferInit(&buf, space, 16, cxDefaultAllocator, CX_BUFFER_DEFAULT); |
universe@536 | 334 | ASSERT_EQ(buf.size, 0); |
universe@536 | 335 | // only clear the used part of the buffer |
universe@536 | 336 | cxBufferClear(&buf); |
universe@536 | 337 | EXPECT_EQ(memcmp(space, "clear test", 10), 0); |
universe@536 | 338 | buf.size = 5; |
universe@536 | 339 | buf.pos = 3; |
universe@536 | 340 | cxBufferClear(&buf); |
universe@536 | 341 | EXPECT_EQ(memcmp(space, "\0\0\0\0\0 test", 10), 0); |
universe@536 | 342 | EXPECT_EQ(buf.size, 0); |
universe@536 | 343 | EXPECT_EQ(buf.pos, 0); |
universe@538 | 344 | cxBufferDestroy(&buf); |
universe@536 | 345 | } |
universe@538 | 346 | |
universe@538 | 347 | class BufferWrite : public ::testing::Test { |
universe@538 | 348 | protected: |
universe@545 | 349 | CxBuffer buf{}, target{}; |
universe@538 | 350 | |
universe@538 | 351 | void SetUp() override { |
universe@545 | 352 | cxBufferInit(&target, nullptr, 16, cxDefaultAllocator, CX_BUFFER_AUTO_EXTEND); |
universe@538 | 353 | cxBufferInit(&buf, nullptr, 16, cxDefaultAllocator, CX_BUFFER_DEFAULT); |
universe@538 | 354 | buf.capacity = 8; // artificially reduce capacity to check OOB writes |
universe@538 | 355 | memset(buf.space, 0, 16); |
universe@538 | 356 | memcpy(buf.space, "prep", 4); |
universe@538 | 357 | buf.size = buf.pos = 4; |
universe@538 | 358 | } |
universe@538 | 359 | |
universe@538 | 360 | void TearDown() override { |
universe@538 | 361 | cxBufferDestroy(&buf); |
universe@545 | 362 | cxBufferDestroy(&target); |
universe@545 | 363 | } |
universe@545 | 364 | |
universe@545 | 365 | void enableFlushing() { |
universe@545 | 366 | buf.flush_target = ⌖ |
universe@545 | 367 | buf.flush_func = reinterpret_cast<cx_write_func>(cxBufferWrite); |
universe@545 | 368 | buf.flush_blkmax = 1; |
universe@538 | 369 | } |
universe@538 | 370 | }; |
universe@538 | 371 | |
universe@567 | 372 | static size_t mock_write_limited_rate( |
universe@567 | 373 | void const *ptr, |
universe@567 | 374 | size_t size, |
universe@567 | 375 | __attribute__((unused)) size_t nitems, |
universe@567 | 376 | CxBuffer *buffer |
universe@567 | 377 | ) { |
universe@567 | 378 | // simulate limited target drain capacity |
universe@567 | 379 | static bool full = false; |
universe@567 | 380 | if (full) { |
universe@567 | 381 | full = false; |
universe@567 | 382 | return 0; |
universe@567 | 383 | } else { |
universe@567 | 384 | full = true; |
universe@567 | 385 | return cxBufferWrite(ptr, size, nitems > 2 ? 2 : nitems, buffer); |
universe@567 | 386 | } |
universe@567 | 387 | } |
universe@567 | 388 | |
universe@538 | 389 | TEST_F(BufferWrite, SizeOneFit) { |
universe@538 | 390 | const char *data = "test"; |
universe@538 | 391 | ASSERT_EQ(buf.capacity, 8); |
universe@538 | 392 | ASSERT_EQ(buf.pos, 4); |
universe@541 | 393 | ASSERT_EQ(buf.size, 4); |
universe@538 | 394 | size_t written = cxBufferWrite(data, 1, 4, &buf); |
universe@538 | 395 | EXPECT_EQ(written, 4); |
universe@538 | 396 | EXPECT_EQ(buf.size, 8); |
universe@538 | 397 | EXPECT_EQ(buf.pos, 8); |
universe@538 | 398 | EXPECT_EQ(buf.capacity, 8); |
universe@538 | 399 | EXPECT_EQ(memcmp(buf.space, "preptest", 8), 0); |
universe@538 | 400 | } |
universe@538 | 401 | |
universe@538 | 402 | TEST_F(BufferWrite, SizeOneDiscard) { |
universe@538 | 403 | const char *data = "testing"; |
universe@538 | 404 | ASSERT_EQ(buf.capacity, 8); |
universe@538 | 405 | ASSERT_EQ(buf.pos, 4); |
universe@541 | 406 | ASSERT_EQ(buf.size, 4); |
universe@538 | 407 | size_t written = cxBufferWrite(data, 1, 7, &buf); |
universe@538 | 408 | EXPECT_EQ(written, 4); |
universe@538 | 409 | EXPECT_EQ(buf.size, 8); |
universe@538 | 410 | EXPECT_EQ(buf.pos, 8); |
universe@538 | 411 | EXPECT_EQ(buf.capacity, 8); |
universe@538 | 412 | EXPECT_EQ(memcmp(buf.space, "preptest\0", 9), 0); |
universe@538 | 413 | } |
universe@538 | 414 | |
universe@538 | 415 | TEST_F(BufferWrite, SizeOneExtend) { |
universe@538 | 416 | buf.flags |= CX_BUFFER_AUTO_EXTEND; |
universe@538 | 417 | const char *data = "testing"; |
universe@538 | 418 | ASSERT_EQ(buf.capacity, 8); |
universe@538 | 419 | ASSERT_EQ(buf.pos, 4); |
universe@541 | 420 | ASSERT_EQ(buf.size, 4); |
universe@538 | 421 | size_t written = cxBufferWrite(data, 1, 7, &buf); |
universe@538 | 422 | EXPECT_EQ(written, 7); |
universe@538 | 423 | EXPECT_EQ(buf.size, 11); |
universe@538 | 424 | EXPECT_EQ(buf.pos, 11); |
universe@538 | 425 | EXPECT_GE(buf.capacity, 11); |
universe@538 | 426 | EXPECT_EQ(memcmp(buf.space, "preptesting", 11), 0); |
universe@538 | 427 | } |
universe@538 | 428 | |
universe@538 | 429 | TEST_F(BufferWrite, MultibyteFit) { |
universe@541 | 430 | const char *data = "test"; |
universe@541 | 431 | ASSERT_EQ(buf.capacity, 8); |
universe@541 | 432 | ASSERT_EQ(buf.pos, 4); |
universe@541 | 433 | ASSERT_EQ(buf.size, 4); |
universe@541 | 434 | size_t written = cxBufferWrite(data, 2, 2, &buf); |
universe@541 | 435 | EXPECT_EQ(written, 2); |
universe@541 | 436 | EXPECT_EQ(buf.size, 8); |
universe@541 | 437 | EXPECT_EQ(buf.pos, 8); |
universe@541 | 438 | EXPECT_EQ(buf.capacity, 8); |
universe@541 | 439 | EXPECT_EQ(memcmp(buf.space, "preptest", 8), 0); |
universe@538 | 440 | } |
universe@538 | 441 | |
universe@538 | 442 | TEST_F(BufferWrite, MultibyteDiscard) { |
universe@542 | 443 | const char *data = "testing"; |
universe@541 | 444 | ASSERT_EQ(buf.capacity, 8); |
universe@541 | 445 | ASSERT_EQ(buf.size, 4); |
universe@541 | 446 | buf.pos = 3; |
universe@542 | 447 | size_t written = cxBufferWrite(data, 2, 4, &buf); |
universe@538 | 448 | // remember: whole elements are discarded if they do not fit |
universe@541 | 449 | EXPECT_EQ(written, 2); |
universe@541 | 450 | EXPECT_EQ(buf.size, 7); |
universe@541 | 451 | EXPECT_EQ(buf.pos, 7); |
universe@541 | 452 | EXPECT_EQ(buf.capacity, 8); |
universe@541 | 453 | EXPECT_EQ(memcmp(buf.space, "pretest\0", 8), 0); |
universe@538 | 454 | } |
universe@538 | 455 | |
universe@538 | 456 | TEST_F(BufferWrite, MultibyteExtend) { |
universe@541 | 457 | buf.flags |= CX_BUFFER_AUTO_EXTEND; |
universe@541 | 458 | const char *data = "tester"; |
universe@541 | 459 | ASSERT_EQ(buf.capacity, 8); |
universe@541 | 460 | ASSERT_EQ(buf.size, 4); |
universe@541 | 461 | buf.pos = 3; |
universe@541 | 462 | size_t written = cxBufferWrite(data, 2, 3, &buf); |
universe@541 | 463 | // remember: whole elements are discarded if they do not fit |
universe@541 | 464 | EXPECT_EQ(written, 3); |
universe@541 | 465 | EXPECT_EQ(buf.size, 9); |
universe@541 | 466 | EXPECT_EQ(buf.pos, 9); |
universe@541 | 467 | EXPECT_GE(buf.capacity, 9); |
universe@566 | 468 | EXPECT_EQ(memcmp(buf.space, "pretester", 9), 0); |
universe@538 | 469 | } |
universe@538 | 470 | |
universe@538 | 471 | TEST_F(BufferWrite, PutcWrapperFit) { |
universe@541 | 472 | ASSERT_EQ(buf.capacity, 8); |
universe@541 | 473 | ASSERT_EQ(buf.pos, 4); |
universe@541 | 474 | ASSERT_EQ(buf.size, 4); |
universe@565 | 475 | int c = cxBufferPut(&buf, 0x200 | 'a'); |
universe@541 | 476 | EXPECT_EQ(c, 'a'); |
universe@541 | 477 | EXPECT_EQ(buf.size, 5); |
universe@541 | 478 | EXPECT_EQ(buf.pos, 5); |
universe@541 | 479 | EXPECT_EQ(buf.capacity, 8); |
universe@541 | 480 | EXPECT_EQ(memcmp(buf.space, "prepa\0", 6), 0); |
universe@538 | 481 | } |
universe@538 | 482 | |
universe@538 | 483 | TEST_F(BufferWrite, PutcWrapperDiscard) { |
universe@541 | 484 | ASSERT_EQ(buf.capacity, 8); |
universe@541 | 485 | ASSERT_EQ(buf.size, 4); |
universe@541 | 486 | buf.pos = 8; |
universe@565 | 487 | int c = cxBufferPut(&buf, 0x200 | 'a'); |
universe@541 | 488 | EXPECT_EQ(c, EOF); |
universe@541 | 489 | EXPECT_EQ(buf.size, 4); |
universe@541 | 490 | EXPECT_EQ(buf.pos, 8); |
universe@541 | 491 | EXPECT_EQ(buf.capacity, 8); |
universe@541 | 492 | EXPECT_EQ(memcmp(buf.space, "prep\0\0\0\0\0", 9), 0); |
universe@538 | 493 | } |
universe@538 | 494 | |
universe@538 | 495 | TEST_F(BufferWrite, PutcWrapperExtend) { |
universe@541 | 496 | buf.flags |= CX_BUFFER_AUTO_EXTEND; |
universe@541 | 497 | ASSERT_EQ(buf.capacity, 8); |
universe@541 | 498 | ASSERT_EQ(buf.size, 4); |
universe@541 | 499 | buf.pos = 8; |
universe@565 | 500 | int c = cxBufferPut(&buf, 0x200 | 'a'); |
universe@541 | 501 | EXPECT_EQ(c, 'a'); |
universe@541 | 502 | EXPECT_EQ(buf.size, 9); |
universe@541 | 503 | EXPECT_EQ(buf.pos, 9); |
universe@541 | 504 | EXPECT_GE(buf.capacity, 9); |
universe@566 | 505 | EXPECT_EQ(memcmp(buf.space, "prep\0\0\0\0a", 9), 0); |
universe@538 | 506 | } |
universe@538 | 507 | |
universe@538 | 508 | TEST_F(BufferWrite, PutStringWrapperFit) { |
universe@541 | 509 | const char *data = "test"; |
universe@541 | 510 | ASSERT_EQ(buf.capacity, 8); |
universe@541 | 511 | ASSERT_EQ(buf.pos, 4); |
universe@541 | 512 | ASSERT_EQ(buf.size, 4); |
universe@541 | 513 | size_t written = cxBufferPutString(&buf, data); |
universe@541 | 514 | EXPECT_EQ(written, 4); |
universe@541 | 515 | EXPECT_EQ(buf.size, 8); |
universe@541 | 516 | EXPECT_EQ(buf.pos, 8); |
universe@541 | 517 | EXPECT_EQ(buf.capacity, 8); |
universe@541 | 518 | EXPECT_EQ(memcmp(buf.space, "preptest", 8), 0); |
universe@538 | 519 | } |
universe@538 | 520 | |
universe@538 | 521 | TEST_F(BufferWrite, PutStringWrapperDiscard) { |
universe@541 | 522 | const char *data = "testing"; |
universe@541 | 523 | ASSERT_EQ(buf.capacity, 8); |
universe@541 | 524 | ASSERT_EQ(buf.pos, 4); |
universe@541 | 525 | ASSERT_EQ(buf.size, 4); |
universe@541 | 526 | size_t written = cxBufferPutString(&buf, data); |
universe@541 | 527 | EXPECT_EQ(written, 4); |
universe@541 | 528 | EXPECT_EQ(buf.size, 8); |
universe@541 | 529 | EXPECT_EQ(buf.pos, 8); |
universe@541 | 530 | EXPECT_EQ(buf.capacity, 8); |
universe@541 | 531 | EXPECT_EQ(memcmp(buf.space, "preptest\0", 9), 0); |
universe@538 | 532 | } |
universe@538 | 533 | |
universe@538 | 534 | TEST_F(BufferWrite, PutStringWrapperExtend) { |
universe@541 | 535 | buf.flags |= CX_BUFFER_AUTO_EXTEND; |
universe@541 | 536 | const char *data = "testing"; |
universe@541 | 537 | ASSERT_EQ(buf.capacity, 8); |
universe@541 | 538 | ASSERT_EQ(buf.pos, 4); |
universe@541 | 539 | ASSERT_EQ(buf.size, 4); |
universe@541 | 540 | size_t written = cxBufferPutString(&buf, data); |
universe@541 | 541 | EXPECT_EQ(written, 7); |
universe@541 | 542 | EXPECT_EQ(buf.size, 11); |
universe@541 | 543 | EXPECT_EQ(buf.pos, 11); |
universe@541 | 544 | EXPECT_GE(buf.capacity, 11); |
universe@541 | 545 | EXPECT_EQ(memcmp(buf.space, "preptesting", 11), 0); |
universe@541 | 546 | } |
universe@538 | 547 | |
universe@541 | 548 | TEST_F(BufferWrite, MultOverflow) { |
universe@541 | 549 | const char *data = "testing"; |
universe@541 | 550 | ASSERT_EQ(buf.capacity, 8); |
universe@541 | 551 | ASSERT_EQ(buf.pos, 4); |
universe@541 | 552 | ASSERT_EQ(buf.size, 4); |
universe@541 | 553 | size_t written = cxBufferWrite(data, 8, SIZE_MAX / 4, &buf); |
universe@541 | 554 | EXPECT_EQ(written, 0); |
universe@541 | 555 | EXPECT_EQ(buf.capacity, 8); |
universe@541 | 556 | EXPECT_EQ(buf.pos, 4); |
universe@541 | 557 | EXPECT_EQ(buf.size, 4); |
universe@541 | 558 | EXPECT_EQ(memcmp(buf.space, "prep\0", 5), 0); |
universe@538 | 559 | } |
universe@541 | 560 | |
universe@541 | 561 | TEST_F(BufferWrite, MaxCapaOverflow) { |
universe@541 | 562 | buf.flags |= CX_BUFFER_AUTO_EXTEND; |
universe@541 | 563 | const char *data = "testing"; |
universe@541 | 564 | ASSERT_EQ(buf.capacity, 8); |
universe@541 | 565 | ASSERT_EQ(buf.pos, 4); |
universe@541 | 566 | ASSERT_EQ(buf.size, 4); |
universe@541 | 567 | size_t written = cxBufferWrite(data, 1, SIZE_MAX - 2, &buf); |
universe@541 | 568 | EXPECT_EQ(written, 0); |
universe@541 | 569 | EXPECT_EQ(buf.capacity, 8); |
universe@541 | 570 | EXPECT_EQ(buf.pos, 4); |
universe@541 | 571 | EXPECT_EQ(buf.size, 4); |
universe@541 | 572 | EXPECT_EQ(memcmp(buf.space, "prep\0", 5), 0); |
universe@541 | 573 | } |
universe@541 | 574 | |
universe@541 | 575 | TEST_F(BufferWrite, OnlyOverwrite) { |
universe@541 | 576 | buf.flags |= CX_BUFFER_AUTO_EXTEND; |
universe@541 | 577 | ASSERT_EQ(buf.capacity, 8); |
universe@541 | 578 | memcpy(buf.space, "preptest", 8); |
universe@541 | 579 | buf.pos = 3; |
universe@541 | 580 | buf.size = 8; |
universe@541 | 581 | size_t written = cxBufferWrite("XXX", 2, 2, &buf); |
universe@541 | 582 | EXPECT_EQ(written, 2); |
universe@541 | 583 | EXPECT_EQ(buf.capacity, 8); |
universe@541 | 584 | EXPECT_EQ(buf.size, 8); |
universe@541 | 585 | EXPECT_EQ(buf.pos, 7); |
universe@541 | 586 | EXPECT_EQ(memcmp(buf.space, "preXXX\0t", 8), 0); |
universe@541 | 587 | } |
universe@545 | 588 | |
universe@545 | 589 | TEST_F(BufferWrite, FlushAtCapacity) { |
universe@545 | 590 | enableFlushing(); |
universe@545 | 591 | ASSERT_EQ(buf.capacity, 8); |
universe@545 | 592 | ASSERT_EQ(buf.pos, 4); |
universe@545 | 593 | size_t written = cxBufferWrite("foo", 1, 3, &buf); |
universe@545 | 594 | EXPECT_EQ(written, 3); |
universe@545 | 595 | ASSERT_EQ(buf.pos, 7); |
universe@545 | 596 | ASSERT_EQ(buf.size, 7); |
universe@545 | 597 | ASSERT_EQ(target.pos, 0); |
universe@545 | 598 | ASSERT_EQ(target.size, 0); |
universe@545 | 599 | written = cxBufferWrite("hello", 1, 5, &buf); |
universe@545 | 600 | EXPECT_EQ(written, 5); |
universe@545 | 601 | EXPECT_EQ(buf.pos, 0); |
universe@545 | 602 | EXPECT_EQ(buf.size, 0); |
universe@545 | 603 | EXPECT_EQ(buf.capacity, 8); |
universe@545 | 604 | EXPECT_EQ(target.pos, 12); |
universe@545 | 605 | ASSERT_EQ(target.size, 12); |
universe@545 | 606 | EXPECT_EQ(memcmp(target.space, "prepfoohello", 12), 0); |
universe@545 | 607 | } |
universe@546 | 608 | |
universe@546 | 609 | TEST_F(BufferWrite, FlushAtThreshold) { |
universe@546 | 610 | enableFlushing(); |
universe@546 | 611 | buf.flush_threshold = 12; |
universe@546 | 612 | buf.flags |= CX_BUFFER_AUTO_EXTEND; |
universe@546 | 613 | ASSERT_EQ(buf.capacity, 8); |
universe@546 | 614 | ASSERT_EQ(buf.pos, 4); |
universe@546 | 615 | size_t written = cxBufferWrite("foobar", 1, 6, &buf); |
universe@546 | 616 | EXPECT_EQ(written, 6); |
universe@546 | 617 | ASSERT_EQ(buf.pos, 10); |
universe@546 | 618 | ASSERT_EQ(buf.size, 10); |
universe@546 | 619 | ASSERT_GE(buf.capacity, 10); |
universe@546 | 620 | ASSERT_LE(buf.capacity, 12); |
universe@546 | 621 | ASSERT_EQ(target.pos, 0); |
universe@546 | 622 | ASSERT_EQ(target.size, 0); |
universe@546 | 623 | written = cxBufferWrite("hello", 1, 5, &buf); |
universe@546 | 624 | EXPECT_EQ(written, 5); |
universe@546 | 625 | EXPECT_EQ(buf.pos, 0); |
universe@546 | 626 | EXPECT_EQ(buf.size, 0); |
universe@546 | 627 | EXPECT_LE(buf.capacity, 12); |
universe@546 | 628 | EXPECT_EQ(target.pos, 15); |
universe@546 | 629 | ASSERT_EQ(target.size, 15); |
universe@546 | 630 | EXPECT_EQ(memcmp(target.space, "prepfoobarhello", 15), 0); |
universe@546 | 631 | } |
universe@547 | 632 | |
universe@567 | 633 | TEST_F(BufferWrite, FlushRateLimited) { |
universe@567 | 634 | enableFlushing(); |
universe@567 | 635 | // limit the rate of the flush function and the capacity of the target |
universe@567 | 636 | target.capacity = 16; |
universe@567 | 637 | target.flags &= ~CX_BUFFER_AUTO_EXTEND; |
universe@567 | 638 | buf.flush_func = (cx_write_func) mock_write_limited_rate; |
universe@567 | 639 | ASSERT_EQ(buf.capacity, 8); |
universe@567 | 640 | ASSERT_EQ(buf.pos, 4); |
universe@567 | 641 | size_t written = cxBufferWrite("foo", 1, 3, &buf); |
universe@567 | 642 | EXPECT_EQ(written, 3); |
universe@567 | 643 | ASSERT_EQ(buf.pos, 7); |
universe@567 | 644 | ASSERT_EQ(buf.size, 7); |
universe@567 | 645 | ASSERT_EQ(target.pos, 0); |
universe@567 | 646 | ASSERT_EQ(target.size, 0); |
universe@567 | 647 | written = cxBufferWrite("hello, world!", 1, 13, &buf); |
universe@567 | 648 | // " world!" fits into this buffer, the remaining stuff is flushed out |
universe@567 | 649 | EXPECT_EQ(written, 13); |
universe@567 | 650 | EXPECT_EQ(buf.pos, 7); |
universe@567 | 651 | EXPECT_EQ(buf.size, 7); |
universe@567 | 652 | EXPECT_EQ(buf.capacity, 8); |
universe@567 | 653 | EXPECT_EQ(memcmp(buf.space, " world!", 7), 0); |
universe@567 | 654 | EXPECT_EQ(target.pos, 13); |
universe@567 | 655 | ASSERT_EQ(target.size, 13); |
universe@567 | 656 | EXPECT_EQ(target.capacity, 16); |
universe@567 | 657 | EXPECT_EQ(memcmp(target.space, "prepfoohello,", 13), 0); |
universe@567 | 658 | } |
universe@567 | 659 | |
universe@548 | 660 | class BufferSeek : public BufferFixture { |
universe@547 | 661 | }; |
universe@547 | 662 | |
universe@547 | 663 | TEST_F(BufferSeek, SetZero) { |
universe@547 | 664 | int result = cxBufferSeek(&buf, 0, SEEK_SET); |
universe@547 | 665 | EXPECT_EQ(result, 0); |
universe@547 | 666 | EXPECT_EQ(buf.pos, 0); |
universe@547 | 667 | } |
universe@547 | 668 | |
universe@547 | 669 | TEST_F(BufferSeek, SetValid) { |
universe@547 | 670 | int result = cxBufferSeek(&buf, 5, SEEK_SET); |
universe@547 | 671 | EXPECT_EQ(result, 0); |
universe@547 | 672 | EXPECT_EQ(buf.pos, 5); |
universe@547 | 673 | } |
universe@547 | 674 | |
universe@547 | 675 | TEST_F(BufferSeek, SetInvalid) { |
universe@547 | 676 | ASSERT_EQ(buf.pos, 3); |
universe@547 | 677 | int result = cxBufferSeek(&buf, 6, SEEK_SET); |
universe@547 | 678 | EXPECT_NE(result, 0); |
universe@547 | 679 | EXPECT_EQ(buf.pos, 3); |
universe@547 | 680 | } |
universe@547 | 681 | |
universe@547 | 682 | TEST_F(BufferSeek, CurZero) { |
universe@547 | 683 | ASSERT_EQ(buf.pos, 3); |
universe@547 | 684 | int result = cxBufferSeek(&buf, 0, SEEK_CUR); |
universe@547 | 685 | EXPECT_EQ(result, 0); |
universe@547 | 686 | EXPECT_EQ(buf.pos, 3); |
universe@547 | 687 | } |
universe@547 | 688 | |
universe@547 | 689 | TEST_F(BufferSeek, CurValidPositive) { |
universe@547 | 690 | ASSERT_EQ(buf.pos, 3); |
universe@547 | 691 | int result = cxBufferSeek(&buf, 2, SEEK_CUR); |
universe@547 | 692 | EXPECT_EQ(result, 0); |
universe@547 | 693 | EXPECT_EQ(buf.pos, 5); |
universe@547 | 694 | } |
universe@547 | 695 | |
universe@547 | 696 | TEST_F(BufferSeek, CurValidNegative) { |
universe@547 | 697 | ASSERT_EQ(buf.pos, 3); |
universe@547 | 698 | int result = cxBufferSeek(&buf, -3, SEEK_CUR); |
universe@547 | 699 | EXPECT_EQ(result, 0); |
universe@547 | 700 | EXPECT_EQ(buf.pos, 0); |
universe@547 | 701 | } |
universe@547 | 702 | |
universe@547 | 703 | TEST_F(BufferSeek, CurInvalidPositive) { |
universe@547 | 704 | ASSERT_EQ(buf.pos, 3); |
universe@547 | 705 | int result = cxBufferSeek(&buf, 3, SEEK_CUR); |
universe@547 | 706 | EXPECT_NE(result, 0); |
universe@547 | 707 | EXPECT_EQ(buf.pos, 3); |
universe@547 | 708 | } |
universe@547 | 709 | |
universe@547 | 710 | TEST_F(BufferSeek, CurInvalidNegative) { |
universe@547 | 711 | ASSERT_EQ(buf.pos, 3); |
universe@547 | 712 | int result = cxBufferSeek(&buf, -4, SEEK_CUR); |
universe@547 | 713 | EXPECT_NE(result, 0); |
universe@547 | 714 | EXPECT_EQ(buf.pos, 3); |
universe@547 | 715 | } |
universe@547 | 716 | |
universe@547 | 717 | TEST_F(BufferSeek, EndZero) { |
universe@547 | 718 | ASSERT_EQ(buf.size, 6); |
universe@547 | 719 | int result = cxBufferSeek(&buf, 0, SEEK_END); |
universe@547 | 720 | // the (past-the-)end position is always invalid |
universe@547 | 721 | EXPECT_NE(result, 0); |
universe@547 | 722 | EXPECT_EQ(buf.pos, 3); |
universe@547 | 723 | } |
universe@547 | 724 | |
universe@547 | 725 | TEST_F(BufferSeek, EndValid) { |
universe@547 | 726 | ASSERT_EQ(buf.size, 6); |
universe@547 | 727 | int result = cxBufferSeek(&buf, -6, SEEK_END); |
universe@547 | 728 | EXPECT_EQ(result, 0); |
universe@547 | 729 | EXPECT_EQ(buf.pos, 0); |
universe@547 | 730 | } |
universe@547 | 731 | |
universe@547 | 732 | TEST_F(BufferSeek, EndInvalid) { |
universe@547 | 733 | ASSERT_EQ(buf.size, 6); |
universe@547 | 734 | int result = cxBufferSeek(&buf, 1, SEEK_END); |
universe@547 | 735 | EXPECT_NE(result, 0); |
universe@547 | 736 | EXPECT_EQ(buf.pos, 3); |
universe@547 | 737 | } |
universe@547 | 738 | |
universe@547 | 739 | TEST_F(BufferSeek, WhenceInvalid) { |
universe@547 | 740 | ASSERT_EQ(buf.size, 6); |
universe@547 | 741 | ASSERT_EQ(buf.pos, 3); |
universe@547 | 742 | int result = cxBufferSeek(&buf, 2, 9000); |
universe@547 | 743 | EXPECT_NE(result, 0); |
universe@547 | 744 | EXPECT_EQ(buf.size, 6); |
universe@547 | 745 | EXPECT_EQ(buf.pos, 3); |
universe@548 | 746 | } |
universe@548 | 747 | |
universe@548 | 748 | class BufferEof : public BufferFixture { |
universe@548 | 749 | }; |
universe@548 | 750 | |
universe@548 | 751 | TEST_F(BufferEof, Reached) { |
universe@548 | 752 | buf.pos = buf.size; |
universe@548 | 753 | EXPECT_TRUE(cxBufferEof(&buf)); |
universe@548 | 754 | buf.pos = buf.size - 1; |
universe@548 | 755 | ASSERT_FALSE(cxBufferEof(&buf)); |
universe@548 | 756 | cxBufferPut(&buf, 'a'); |
universe@548 | 757 | EXPECT_TRUE(cxBufferEof(&buf)); |
universe@548 | 758 | } |
universe@548 | 759 | |
universe@548 | 760 | TEST_F(BufferEof, NotReached) { |
universe@548 | 761 | buf.pos = buf.size - 1; |
universe@548 | 762 | EXPECT_FALSE(cxBufferEof(&buf)); |
universe@548 | 763 | buf.pos = 0; |
universe@548 | 764 | cxBufferWrite("test", 1, 5, &buf); |
universe@548 | 765 | EXPECT_FALSE(cxBufferEof(&buf)); |
universe@548 | 766 | } |
universe@568 | 767 | |
universe@568 | 768 | class BufferRead : public ::testing::Test { |
universe@568 | 769 | protected: |
universe@568 | 770 | CxBuffer buf{}; |
universe@568 | 771 | |
universe@568 | 772 | void SetUp() override { |
universe@568 | 773 | cxBufferInit(&buf, nullptr, 16, cxDefaultAllocator, CX_BUFFER_DEFAULT); |
universe@568 | 774 | buf.capacity = 8; // artificially reduce capacity to check OOB writes |
universe@568 | 775 | memset(buf.space, 0, 16); |
universe@568 | 776 | memcpy(buf.space, "some data", 9); |
universe@568 | 777 | buf.size = 9; |
universe@568 | 778 | } |
universe@568 | 779 | |
universe@568 | 780 | void TearDown() override { |
universe@568 | 781 | cxBufferDestroy(&buf); |
universe@568 | 782 | } |
universe@568 | 783 | }; |
universe@568 | 784 | |
universe@568 | 785 | TEST_F(BufferRead, GetByte) { |
universe@568 | 786 | buf.pos = 2; |
universe@568 | 787 | EXPECT_EQ(cxBufferGet(&buf), 'm'); |
universe@568 | 788 | EXPECT_EQ(cxBufferGet(&buf), 'e'); |
universe@568 | 789 | EXPECT_EQ(cxBufferGet(&buf), ' '); |
universe@568 | 790 | EXPECT_EQ(cxBufferGet(&buf), 'd'); |
universe@568 | 791 | EXPECT_EQ(buf.pos, 6); |
universe@568 | 792 | } |
universe@568 | 793 | |
universe@568 | 794 | TEST_F(BufferRead, GetEof) { |
universe@568 | 795 | buf.pos = buf.size; |
universe@568 | 796 | EXPECT_EQ(cxBufferGet(&buf), EOF); |
universe@568 | 797 | } |
universe@569 | 798 | |
universe@569 | 799 | TEST_F(BufferRead, ReadWithinBounds) { |
universe@569 | 800 | buf.pos = 2; |
universe@569 | 801 | char target[4]; |
universe@569 | 802 | auto read = cxBufferRead(&target, 1, 4, &buf); |
universe@569 | 803 | ASSERT_EQ(read, 4); |
universe@569 | 804 | EXPECT_EQ(memcmp(&target, "me d", 4), 0); |
universe@569 | 805 | EXPECT_EQ(buf.pos, 6); |
universe@569 | 806 | } |
universe@569 | 807 | |
universe@569 | 808 | TEST_F(BufferRead, ReadOutOfBounds) { |
universe@569 | 809 | buf.pos = 6; |
universe@569 | 810 | char target[4]; |
universe@569 | 811 | auto read = cxBufferRead(&target, 1, 4, &buf); |
universe@569 | 812 | ASSERT_EQ(read, 3); |
universe@569 | 813 | EXPECT_EQ(memcmp(&target, "ata", 3), 0); |
universe@569 | 814 | EXPECT_EQ(buf.pos, 9); |
universe@569 | 815 | } |
universe@569 | 816 | |
universe@569 | 817 | TEST_F(BufferRead, ReadOutOfBoundsMultibyte) { |
universe@569 | 818 | buf.pos = 6; |
universe@569 | 819 | char target[4]; |
universe@569 | 820 | target[2] = '\0'; |
universe@569 | 821 | auto read = cxBufferRead(&target, 2, 2, &buf); |
universe@569 | 822 | ASSERT_EQ(read, 1); |
universe@569 | 823 | EXPECT_EQ(memcmp(&target, "at\0", 3), 0); |
universe@569 | 824 | EXPECT_EQ(buf.pos, 8); |
universe@569 | 825 | } |
universe@569 | 826 | |
universe@569 | 827 | TEST_F(BufferRead, ReadEof) { |
universe@569 | 828 | buf.pos = 9; |
universe@569 | 829 | char target[4]; |
universe@569 | 830 | auto read = cxBufferRead(&target, 1, 1, &buf); |
universe@569 | 831 | ASSERT_EQ(read, 0); |
universe@569 | 832 | EXPECT_EQ(buf.pos, 9); |
universe@569 | 833 | } |