Mon, 16 May 2022 19:15:44 +0200
#170 test buffer seek
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@539 | 34 | static void expect_default_flush_config(CxBuffer *buf) { |
universe@539 | 35 | EXPECT_EQ(buf->flush_blkmax, 0); |
universe@539 | 36 | EXPECT_EQ(buf->flush_blksize, 4096); |
universe@539 | 37 | EXPECT_EQ(buf->flush_threshold, SIZE_MAX); |
universe@539 | 38 | EXPECT_EQ(buf->flush_func, nullptr); |
universe@541 | 39 | EXPECT_EQ(buf->flush_target, nullptr); |
universe@539 | 40 | } |
universe@539 | 41 | |
universe@535 | 42 | TEST(BufferInit, WrapSpace) { |
universe@535 | 43 | CxTestingAllocator alloc; |
universe@530 | 44 | CxBuffer buf; |
universe@535 | 45 | void *space = cxMalloc(&alloc, 16); |
universe@535 | 46 | cxBufferInit(&buf, space, 16, &alloc, CX_BUFFER_DEFAULT); |
universe@539 | 47 | expect_default_flush_config(&buf); |
universe@530 | 48 | EXPECT_EQ(buf.space, space); |
universe@530 | 49 | EXPECT_EQ(buf.flags & CX_BUFFER_AUTO_EXTEND, 0); |
universe@530 | 50 | EXPECT_EQ(buf.flags & CX_BUFFER_FREE_CONTENTS, 0); |
universe@530 | 51 | EXPECT_EQ(buf.pos, 0); |
universe@530 | 52 | EXPECT_EQ(buf.size, 0); |
universe@530 | 53 | EXPECT_EQ(buf.capacity, 16); |
universe@535 | 54 | EXPECT_EQ(buf.allocator, &alloc); |
universe@530 | 55 | cxBufferDestroy(&buf); |
universe@535 | 56 | EXPECT_FALSE(alloc.verify()); |
universe@535 | 57 | cxFree(&alloc, space); |
universe@535 | 58 | EXPECT_TRUE(alloc.verify()); |
universe@530 | 59 | } |
universe@530 | 60 | |
universe@539 | 61 | TEST(BufferInit, WrapSpaceAutoExtend) { |
universe@539 | 62 | CxTestingAllocator alloc; |
universe@539 | 63 | CxBuffer buf; |
universe@539 | 64 | void *space = cxMalloc(&alloc, 16); |
universe@539 | 65 | cxBufferInit(&buf, space, 16, &alloc, CX_BUFFER_AUTO_EXTEND); |
universe@539 | 66 | expect_default_flush_config(&buf); |
universe@539 | 67 | EXPECT_EQ(buf.space, space); |
universe@539 | 68 | EXPECT_EQ(buf.flags & CX_BUFFER_AUTO_EXTEND, CX_BUFFER_AUTO_EXTEND); |
universe@539 | 69 | EXPECT_EQ(buf.flags & CX_BUFFER_FREE_CONTENTS, 0); |
universe@539 | 70 | EXPECT_EQ(buf.pos, 0); |
universe@539 | 71 | EXPECT_EQ(buf.size, 0); |
universe@539 | 72 | EXPECT_EQ(buf.capacity, 16); |
universe@539 | 73 | EXPECT_EQ(buf.allocator, &alloc); |
universe@539 | 74 | cxBufferDestroy(&buf); |
universe@539 | 75 | EXPECT_FALSE(alloc.verify()); |
universe@539 | 76 | cxFree(&alloc, space); |
universe@539 | 77 | EXPECT_TRUE(alloc.verify()); |
universe@539 | 78 | } |
universe@539 | 79 | |
universe@535 | 80 | TEST(BufferInit, WrapSpaceAutoFree) { |
universe@535 | 81 | CxTestingAllocator alloc; |
universe@530 | 82 | CxBuffer buf; |
universe@535 | 83 | void *space = cxMalloc(&alloc, 16); |
universe@535 | 84 | cxBufferInit(&buf, space, 16, &alloc, CX_BUFFER_FREE_CONTENTS); |
universe@539 | 85 | expect_default_flush_config(&buf); |
universe@530 | 86 | EXPECT_EQ(buf.space, space); |
universe@530 | 87 | EXPECT_EQ(buf.flags & CX_BUFFER_AUTO_EXTEND, 0); |
universe@530 | 88 | EXPECT_EQ(buf.flags & CX_BUFFER_FREE_CONTENTS, CX_BUFFER_FREE_CONTENTS); |
universe@530 | 89 | EXPECT_EQ(buf.pos, 0); |
universe@530 | 90 | EXPECT_EQ(buf.size, 0); |
universe@530 | 91 | EXPECT_EQ(buf.capacity, 16); |
universe@535 | 92 | EXPECT_EQ(buf.allocator, &alloc); |
universe@535 | 93 | EXPECT_FALSE(alloc.verify()); |
universe@530 | 94 | cxBufferDestroy(&buf); |
universe@535 | 95 | EXPECT_TRUE(alloc.verify()); |
universe@530 | 96 | } |
universe@535 | 97 | |
universe@535 | 98 | TEST(BufferInit, FreshSpace) { |
universe@535 | 99 | CxTestingAllocator alloc; |
universe@535 | 100 | CxBuffer buf; |
universe@535 | 101 | cxBufferInit(&buf, nullptr, 8, &alloc, CX_BUFFER_DEFAULT); |
universe@539 | 102 | expect_default_flush_config(&buf); |
universe@535 | 103 | EXPECT_NE(buf.space, nullptr); |
universe@535 | 104 | EXPECT_EQ(buf.flags & CX_BUFFER_AUTO_EXTEND, 0); |
universe@535 | 105 | EXPECT_EQ(buf.flags & CX_BUFFER_FREE_CONTENTS, CX_BUFFER_FREE_CONTENTS); |
universe@535 | 106 | EXPECT_EQ(buf.pos, 0); |
universe@535 | 107 | EXPECT_EQ(buf.size, 0); |
universe@535 | 108 | EXPECT_EQ(buf.capacity, 8); |
universe@535 | 109 | EXPECT_EQ(buf.allocator, &alloc); |
universe@535 | 110 | EXPECT_FALSE(alloc.verify()); // space is still allocated |
universe@535 | 111 | cxBufferDestroy(&buf); |
universe@535 | 112 | EXPECT_TRUE(alloc.verify()); |
universe@535 | 113 | } |
universe@535 | 114 | |
universe@535 | 115 | class BufferShiftFixture : public ::testing::Test { |
universe@535 | 116 | protected: |
universe@535 | 117 | void SetUp() override { |
universe@535 | 118 | ASSERT_TRUE(alloc.verify()); |
universe@535 | 119 | cxBufferInit(&buf, nullptr, 16, &alloc, CX_BUFFER_DEFAULT); |
universe@535 | 120 | memcpy(buf.space, "test____________", 16); |
universe@535 | 121 | buf.capacity = 8; // purposely pretend that the buffer has less capacity s.t. we can test beyond the range |
universe@535 | 122 | buf.pos = 4; |
universe@535 | 123 | buf.size = 4; |
universe@535 | 124 | } |
universe@535 | 125 | |
universe@535 | 126 | void TearDown() override { |
universe@535 | 127 | cxBufferDestroy(&buf); |
universe@535 | 128 | EXPECT_TRUE(alloc.verify()); |
universe@535 | 129 | } |
universe@535 | 130 | |
universe@535 | 131 | CxTestingAllocator alloc; |
universe@535 | 132 | CxBuffer buf{}; |
universe@535 | 133 | }; |
universe@535 | 134 | |
universe@535 | 135 | class BufferShiftLeft : public BufferShiftFixture { |
universe@535 | 136 | }; |
universe@535 | 137 | |
universe@535 | 138 | TEST_F(BufferShiftLeft, Zero) { |
universe@535 | 139 | ASSERT_EQ(buf.pos, 4); |
universe@535 | 140 | ASSERT_EQ(buf.size, 4); |
universe@535 | 141 | int ret = cxBufferShiftLeft(&buf, 0); |
universe@535 | 142 | EXPECT_EQ(ret, 0); |
universe@535 | 143 | EXPECT_EQ(buf.pos, 4); |
universe@535 | 144 | EXPECT_EQ(buf.size, 4); |
universe@535 | 145 | EXPECT_TRUE(memcmp(buf.space, "test________", 8) == 0); |
universe@535 | 146 | } |
universe@535 | 147 | |
universe@547 | 148 | TEST_F(BufferShiftLeft, ZeroOffsetInterface) { |
universe@547 | 149 | ASSERT_EQ(buf.pos, 4); |
universe@547 | 150 | ASSERT_EQ(buf.size, 4); |
universe@547 | 151 | int ret = cxBufferShift(&buf, -0); |
universe@547 | 152 | EXPECT_EQ(ret, 0); |
universe@547 | 153 | EXPECT_EQ(buf.pos, 4); |
universe@547 | 154 | EXPECT_EQ(buf.size, 4); |
universe@547 | 155 | EXPECT_TRUE(memcmp(buf.space, "test________", 8) == 0); |
universe@547 | 156 | } |
universe@547 | 157 | |
universe@535 | 158 | TEST_F(BufferShiftLeft, Standard) { |
universe@535 | 159 | ASSERT_EQ(buf.pos, 4); |
universe@535 | 160 | ASSERT_EQ(buf.size, 4); |
universe@535 | 161 | int ret = cxBufferShiftLeft(&buf, 2); |
universe@535 | 162 | EXPECT_EQ(ret, 0); |
universe@535 | 163 | EXPECT_EQ(buf.pos, 2); |
universe@535 | 164 | EXPECT_EQ(buf.size, 2); |
universe@535 | 165 | EXPECT_TRUE(memcmp(buf.space, "stst________", 8) == 0); |
universe@535 | 166 | } |
universe@535 | 167 | |
universe@535 | 168 | TEST_F(BufferShiftLeft, Overshift) { |
universe@535 | 169 | ASSERT_LT(buf.pos, 6); |
universe@535 | 170 | ASSERT_LT(buf.size, 6); |
universe@535 | 171 | int ret = cxBufferShiftLeft(&buf, 6); |
universe@535 | 172 | EXPECT_EQ(ret, 0); |
universe@535 | 173 | EXPECT_EQ(buf.pos, 0); |
universe@535 | 174 | EXPECT_EQ(buf.size, 0); |
universe@535 | 175 | EXPECT_TRUE(memcmp(buf.space, "test________", 8) == 0); |
universe@535 | 176 | } |
universe@535 | 177 | |
universe@535 | 178 | TEST_F(BufferShiftLeft, OvershiftPosOnly) { |
universe@535 | 179 | buf.pos = 2; |
universe@535 | 180 | ASSERT_EQ(buf.size, 4); |
universe@535 | 181 | int ret = cxBufferShiftLeft(&buf, 3); |
universe@535 | 182 | EXPECT_EQ(ret, 0); |
universe@535 | 183 | EXPECT_EQ(buf.pos, 0); |
universe@535 | 184 | EXPECT_EQ(buf.size, 1); |
universe@535 | 185 | EXPECT_TRUE(memcmp(buf.space, "test________", 8) == 0); |
universe@535 | 186 | } |
universe@535 | 187 | |
universe@535 | 188 | TEST_F(BufferShiftLeft, OffsetInterface) { |
universe@535 | 189 | buf.pos = 3; |
universe@535 | 190 | ASSERT_EQ(buf.size, 4); |
universe@535 | 191 | int ret = cxBufferShift(&buf, -2); |
universe@535 | 192 | EXPECT_EQ(ret, 0); |
universe@535 | 193 | EXPECT_EQ(buf.pos, 1); |
universe@535 | 194 | EXPECT_EQ(buf.size, 2); |
universe@535 | 195 | EXPECT_TRUE(memcmp(buf.space, "stst________", 8) == 0); |
universe@535 | 196 | } |
universe@535 | 197 | |
universe@535 | 198 | class BufferShiftRight : public BufferShiftFixture { |
universe@535 | 199 | }; |
universe@535 | 200 | |
universe@535 | 201 | TEST_F(BufferShiftRight, Zero) { |
universe@535 | 202 | ASSERT_EQ(buf.pos, 4); |
universe@535 | 203 | ASSERT_EQ(buf.size, 4); |
universe@535 | 204 | int ret = cxBufferShiftRight(&buf, 0); |
universe@535 | 205 | EXPECT_EQ(ret, 0); |
universe@535 | 206 | EXPECT_EQ(buf.pos, 4); |
universe@535 | 207 | EXPECT_EQ(buf.size, 4); |
universe@535 | 208 | EXPECT_TRUE(memcmp(buf.space, "test________", 8) == 0); |
universe@535 | 209 | } |
universe@535 | 210 | |
universe@547 | 211 | TEST_F(BufferShiftRight, ZeroOffsetInterface) { |
universe@547 | 212 | ASSERT_EQ(buf.pos, 4); |
universe@547 | 213 | ASSERT_EQ(buf.size, 4); |
universe@547 | 214 | int ret = cxBufferShift(&buf, +0); |
universe@547 | 215 | EXPECT_EQ(ret, 0); |
universe@547 | 216 | EXPECT_EQ(buf.pos, 4); |
universe@547 | 217 | EXPECT_EQ(buf.size, 4); |
universe@547 | 218 | EXPECT_TRUE(memcmp(buf.space, "test________", 8) == 0); |
universe@547 | 219 | } |
universe@547 | 220 | |
universe@535 | 221 | TEST_F(BufferShiftRight, Standard) { |
universe@535 | 222 | ASSERT_EQ(buf.pos, 4); |
universe@535 | 223 | ASSERT_EQ(buf.size, 4); |
universe@535 | 224 | int ret = cxBufferShiftRight(&buf, 3); |
universe@535 | 225 | EXPECT_EQ(ret, 0); |
universe@535 | 226 | EXPECT_EQ(buf.pos, 7); |
universe@535 | 227 | EXPECT_EQ(buf.size, 7); |
universe@535 | 228 | EXPECT_TRUE(memcmp(buf.space, "testest_____", 8) == 0); |
universe@535 | 229 | } |
universe@535 | 230 | |
universe@535 | 231 | TEST_F(BufferShiftRight, OvershiftDiscard) { |
universe@535 | 232 | ASSERT_EQ(buf.pos, 4); |
universe@535 | 233 | ASSERT_EQ(buf.size, 4); |
universe@535 | 234 | ASSERT_EQ(buf.capacity, 8); |
universe@535 | 235 | int ret = cxBufferShiftRight(&buf, 6); |
universe@535 | 236 | EXPECT_EQ(ret, 0); |
universe@535 | 237 | EXPECT_EQ(buf.pos, 8); |
universe@535 | 238 | EXPECT_EQ(buf.size, 8); |
universe@535 | 239 | EXPECT_EQ(buf.capacity, 8); |
universe@535 | 240 | EXPECT_TRUE(memcmp(buf.space, "test__te____", 8) == 0); |
universe@535 | 241 | } |
universe@535 | 242 | |
universe@535 | 243 | TEST_F(BufferShiftRight, OvershiftExtend) { |
universe@535 | 244 | ASSERT_EQ(buf.pos, 4); |
universe@535 | 245 | ASSERT_EQ(buf.size, 4); |
universe@535 | 246 | ASSERT_EQ(buf.capacity, 8); |
universe@535 | 247 | buf.flags |= CX_BUFFER_AUTO_EXTEND; |
universe@535 | 248 | int ret = cxBufferShiftRight(&buf, 6); |
universe@535 | 249 | EXPECT_EQ(ret, 0); |
universe@535 | 250 | EXPECT_EQ(buf.pos, 10); |
universe@535 | 251 | EXPECT_EQ(buf.size, 10); |
universe@535 | 252 | EXPECT_GE(buf.capacity, 10); |
universe@535 | 253 | EXPECT_TRUE(memcmp(buf.space, "test__test__", 8) == 0); |
universe@535 | 254 | } |
universe@535 | 255 | |
universe@535 | 256 | TEST_F(BufferShiftRight, OffsetInterface) { |
universe@535 | 257 | buf.pos = 3; |
universe@535 | 258 | ASSERT_EQ(buf.size, 4); |
universe@535 | 259 | int ret = cxBufferShift(&buf, 2); |
universe@535 | 260 | EXPECT_EQ(ret, 0); |
universe@535 | 261 | EXPECT_EQ(buf.pos, 5); |
universe@535 | 262 | EXPECT_EQ(buf.size, 6); |
universe@535 | 263 | EXPECT_TRUE(memcmp(buf.space, "tetest______", 8) == 0); |
universe@535 | 264 | } |
universe@535 | 265 | |
universe@535 | 266 | TEST(BufferMinimumCapacity, Sufficient) { |
universe@535 | 267 | CxTestingAllocator alloc; |
universe@535 | 268 | auto space = cxMalloc(&alloc, 8); |
universe@535 | 269 | CxBuffer buf; |
universe@535 | 270 | cxBufferInit(&buf, space, 8, &alloc, CX_BUFFER_FREE_CONTENTS); |
universe@535 | 271 | memcpy(space, "Testing", 8); |
universe@535 | 272 | buf.size = 8; |
universe@535 | 273 | cxBufferMinimumCapacity(&buf, 6); |
universe@535 | 274 | EXPECT_EQ(buf.capacity, 8); |
universe@535 | 275 | EXPECT_EQ(buf.size, 8); |
universe@535 | 276 | EXPECT_TRUE(memcmp(buf.space, "Testing", 8) == 0); |
universe@535 | 277 | cxBufferDestroy(&buf); |
universe@535 | 278 | EXPECT_TRUE(alloc.verify()); |
universe@535 | 279 | } |
universe@535 | 280 | |
universe@535 | 281 | TEST(BufferMinimumCapacity, Extend) { |
universe@535 | 282 | CxTestingAllocator alloc; |
universe@535 | 283 | auto space = cxMalloc(&alloc, 8); |
universe@535 | 284 | CxBuffer buf; |
universe@535 | 285 | cxBufferInit(&buf, space, 8, &alloc, CX_BUFFER_FREE_CONTENTS); // NO auto extend! |
universe@535 | 286 | memcpy(space, "Testing", 8); |
universe@535 | 287 | buf.size = 8; |
universe@535 | 288 | cxBufferMinimumCapacity(&buf, 16); |
universe@535 | 289 | EXPECT_EQ(buf.capacity, 16); |
universe@535 | 290 | EXPECT_EQ(buf.size, 8); |
universe@535 | 291 | EXPECT_TRUE(memcmp(buf.space, "Testing", 8) == 0); |
universe@535 | 292 | cxBufferDestroy(&buf); |
universe@535 | 293 | EXPECT_TRUE(alloc.verify()); |
universe@535 | 294 | } |
universe@536 | 295 | |
universe@536 | 296 | TEST(BufferClear, Test) { |
universe@536 | 297 | char space[16]; |
universe@536 | 298 | strcpy(space, "clear test"); |
universe@536 | 299 | CxBuffer buf; |
universe@536 | 300 | cxBufferInit(&buf, space, 16, cxDefaultAllocator, CX_BUFFER_DEFAULT); |
universe@536 | 301 | ASSERT_EQ(buf.size, 0); |
universe@536 | 302 | // only clear the used part of the buffer |
universe@536 | 303 | cxBufferClear(&buf); |
universe@536 | 304 | EXPECT_EQ(memcmp(space, "clear test", 10), 0); |
universe@536 | 305 | buf.size = 5; |
universe@536 | 306 | buf.pos = 3; |
universe@536 | 307 | cxBufferClear(&buf); |
universe@536 | 308 | EXPECT_EQ(memcmp(space, "\0\0\0\0\0 test", 10), 0); |
universe@536 | 309 | EXPECT_EQ(buf.size, 0); |
universe@536 | 310 | EXPECT_EQ(buf.pos, 0); |
universe@538 | 311 | cxBufferDestroy(&buf); |
universe@536 | 312 | } |
universe@538 | 313 | |
universe@538 | 314 | class BufferWrite : public ::testing::Test { |
universe@538 | 315 | protected: |
universe@545 | 316 | CxBuffer buf{}, target{}; |
universe@538 | 317 | |
universe@538 | 318 | void SetUp() override { |
universe@545 | 319 | cxBufferInit(&target, nullptr, 16, cxDefaultAllocator, CX_BUFFER_AUTO_EXTEND); |
universe@538 | 320 | cxBufferInit(&buf, nullptr, 16, cxDefaultAllocator, CX_BUFFER_DEFAULT); |
universe@538 | 321 | buf.capacity = 8; // artificially reduce capacity to check OOB writes |
universe@538 | 322 | memset(buf.space, 0, 16); |
universe@538 | 323 | memcpy(buf.space, "prep", 4); |
universe@538 | 324 | buf.size = buf.pos = 4; |
universe@538 | 325 | } |
universe@538 | 326 | |
universe@538 | 327 | void TearDown() override { |
universe@538 | 328 | cxBufferDestroy(&buf); |
universe@545 | 329 | cxBufferDestroy(&target); |
universe@545 | 330 | } |
universe@545 | 331 | |
universe@545 | 332 | void enableFlushing() { |
universe@545 | 333 | buf.flush_target = ⌖ |
universe@545 | 334 | buf.flush_func = reinterpret_cast<cx_write_func>(cxBufferWrite); |
universe@545 | 335 | buf.flush_blkmax = 1; |
universe@538 | 336 | } |
universe@538 | 337 | }; |
universe@538 | 338 | |
universe@538 | 339 | TEST_F(BufferWrite, SizeOneFit) { |
universe@538 | 340 | const char *data = "test"; |
universe@538 | 341 | ASSERT_EQ(buf.capacity, 8); |
universe@538 | 342 | ASSERT_EQ(buf.pos, 4); |
universe@541 | 343 | ASSERT_EQ(buf.size, 4); |
universe@538 | 344 | size_t written = cxBufferWrite(data, 1, 4, &buf); |
universe@538 | 345 | EXPECT_EQ(written, 4); |
universe@538 | 346 | EXPECT_EQ(buf.size, 8); |
universe@538 | 347 | EXPECT_EQ(buf.pos, 8); |
universe@538 | 348 | EXPECT_EQ(buf.capacity, 8); |
universe@538 | 349 | EXPECT_EQ(memcmp(buf.space, "preptest", 8), 0); |
universe@538 | 350 | } |
universe@538 | 351 | |
universe@538 | 352 | TEST_F(BufferWrite, SizeOneDiscard) { |
universe@538 | 353 | const char *data = "testing"; |
universe@538 | 354 | ASSERT_EQ(buf.capacity, 8); |
universe@538 | 355 | ASSERT_EQ(buf.pos, 4); |
universe@541 | 356 | ASSERT_EQ(buf.size, 4); |
universe@538 | 357 | size_t written = cxBufferWrite(data, 1, 7, &buf); |
universe@538 | 358 | EXPECT_EQ(written, 4); |
universe@538 | 359 | EXPECT_EQ(buf.size, 8); |
universe@538 | 360 | EXPECT_EQ(buf.pos, 8); |
universe@538 | 361 | EXPECT_EQ(buf.capacity, 8); |
universe@538 | 362 | EXPECT_EQ(memcmp(buf.space, "preptest\0", 9), 0); |
universe@538 | 363 | } |
universe@538 | 364 | |
universe@538 | 365 | TEST_F(BufferWrite, SizeOneExtend) { |
universe@538 | 366 | buf.flags |= CX_BUFFER_AUTO_EXTEND; |
universe@538 | 367 | const char *data = "testing"; |
universe@538 | 368 | ASSERT_EQ(buf.capacity, 8); |
universe@538 | 369 | ASSERT_EQ(buf.pos, 4); |
universe@541 | 370 | ASSERT_EQ(buf.size, 4); |
universe@538 | 371 | size_t written = cxBufferWrite(data, 1, 7, &buf); |
universe@538 | 372 | EXPECT_EQ(written, 7); |
universe@538 | 373 | EXPECT_EQ(buf.size, 11); |
universe@538 | 374 | EXPECT_EQ(buf.pos, 11); |
universe@538 | 375 | EXPECT_GE(buf.capacity, 11); |
universe@538 | 376 | EXPECT_EQ(memcmp(buf.space, "preptesting", 11), 0); |
universe@538 | 377 | } |
universe@538 | 378 | |
universe@538 | 379 | TEST_F(BufferWrite, MultibyteFit) { |
universe@541 | 380 | const char *data = "test"; |
universe@541 | 381 | ASSERT_EQ(buf.capacity, 8); |
universe@541 | 382 | ASSERT_EQ(buf.pos, 4); |
universe@541 | 383 | ASSERT_EQ(buf.size, 4); |
universe@541 | 384 | size_t written = cxBufferWrite(data, 2, 2, &buf); |
universe@541 | 385 | EXPECT_EQ(written, 2); |
universe@541 | 386 | EXPECT_EQ(buf.size, 8); |
universe@541 | 387 | EXPECT_EQ(buf.pos, 8); |
universe@541 | 388 | EXPECT_EQ(buf.capacity, 8); |
universe@541 | 389 | EXPECT_EQ(memcmp(buf.space, "preptest", 8), 0); |
universe@538 | 390 | } |
universe@538 | 391 | |
universe@538 | 392 | TEST_F(BufferWrite, MultibyteDiscard) { |
universe@542 | 393 | const char *data = "testing"; |
universe@541 | 394 | ASSERT_EQ(buf.capacity, 8); |
universe@541 | 395 | ASSERT_EQ(buf.size, 4); |
universe@541 | 396 | buf.pos = 3; |
universe@542 | 397 | size_t written = cxBufferWrite(data, 2, 4, &buf); |
universe@538 | 398 | // remember: whole elements are discarded if they do not fit |
universe@541 | 399 | EXPECT_EQ(written, 2); |
universe@541 | 400 | EXPECT_EQ(buf.size, 7); |
universe@541 | 401 | EXPECT_EQ(buf.pos, 7); |
universe@541 | 402 | EXPECT_EQ(buf.capacity, 8); |
universe@541 | 403 | EXPECT_EQ(memcmp(buf.space, "pretest\0", 8), 0); |
universe@538 | 404 | } |
universe@538 | 405 | |
universe@538 | 406 | TEST_F(BufferWrite, MultibyteExtend) { |
universe@541 | 407 | buf.flags |= CX_BUFFER_AUTO_EXTEND; |
universe@541 | 408 | const char *data = "tester"; |
universe@541 | 409 | ASSERT_EQ(buf.capacity, 8); |
universe@541 | 410 | ASSERT_EQ(buf.size, 4); |
universe@541 | 411 | buf.pos = 3; |
universe@541 | 412 | size_t written = cxBufferWrite(data, 2, 3, &buf); |
universe@541 | 413 | // remember: whole elements are discarded if they do not fit |
universe@541 | 414 | EXPECT_EQ(written, 3); |
universe@541 | 415 | EXPECT_EQ(buf.size, 9); |
universe@541 | 416 | EXPECT_EQ(buf.pos, 9); |
universe@541 | 417 | EXPECT_GE(buf.capacity, 9); |
universe@541 | 418 | EXPECT_EQ(memcmp(buf.space, "pretester\0", 10), 0); |
universe@538 | 419 | } |
universe@538 | 420 | |
universe@538 | 421 | TEST_F(BufferWrite, PutcWrapperFit) { |
universe@541 | 422 | ASSERT_EQ(buf.capacity, 8); |
universe@541 | 423 | ASSERT_EQ(buf.pos, 4); |
universe@541 | 424 | ASSERT_EQ(buf.size, 4); |
universe@541 | 425 | int c = cxBufferPut(&buf, 0x20 | 'a'); |
universe@541 | 426 | EXPECT_EQ(c, 'a'); |
universe@541 | 427 | EXPECT_EQ(buf.size, 5); |
universe@541 | 428 | EXPECT_EQ(buf.pos, 5); |
universe@541 | 429 | EXPECT_EQ(buf.capacity, 8); |
universe@541 | 430 | EXPECT_EQ(memcmp(buf.space, "prepa\0", 6), 0); |
universe@538 | 431 | } |
universe@538 | 432 | |
universe@538 | 433 | TEST_F(BufferWrite, PutcWrapperDiscard) { |
universe@541 | 434 | ASSERT_EQ(buf.capacity, 8); |
universe@541 | 435 | ASSERT_EQ(buf.size, 4); |
universe@541 | 436 | buf.pos = 8; |
universe@541 | 437 | int c = cxBufferPut(&buf, 0x20 | 'a'); |
universe@541 | 438 | EXPECT_EQ(c, EOF); |
universe@541 | 439 | EXPECT_EQ(buf.size, 4); |
universe@541 | 440 | EXPECT_EQ(buf.pos, 8); |
universe@541 | 441 | EXPECT_EQ(buf.capacity, 8); |
universe@541 | 442 | EXPECT_EQ(memcmp(buf.space, "prep\0\0\0\0\0", 9), 0); |
universe@538 | 443 | } |
universe@538 | 444 | |
universe@538 | 445 | TEST_F(BufferWrite, PutcWrapperExtend) { |
universe@541 | 446 | buf.flags |= CX_BUFFER_AUTO_EXTEND; |
universe@541 | 447 | ASSERT_EQ(buf.capacity, 8); |
universe@541 | 448 | ASSERT_EQ(buf.size, 4); |
universe@541 | 449 | buf.pos = 8; |
universe@541 | 450 | int c = cxBufferPut(&buf, 0x20 | 'a'); |
universe@541 | 451 | EXPECT_EQ(c, 'a'); |
universe@541 | 452 | EXPECT_EQ(buf.size, 9); |
universe@541 | 453 | EXPECT_EQ(buf.pos, 9); |
universe@541 | 454 | EXPECT_GE(buf.capacity, 9); |
universe@541 | 455 | EXPECT_EQ(memcmp(buf.space, "prep\0\0\0\0a\0", 10), 0); |
universe@538 | 456 | } |
universe@538 | 457 | |
universe@538 | 458 | TEST_F(BufferWrite, PutStringWrapperFit) { |
universe@541 | 459 | const char *data = "test"; |
universe@541 | 460 | ASSERT_EQ(buf.capacity, 8); |
universe@541 | 461 | ASSERT_EQ(buf.pos, 4); |
universe@541 | 462 | ASSERT_EQ(buf.size, 4); |
universe@541 | 463 | size_t written = cxBufferPutString(&buf, data); |
universe@541 | 464 | EXPECT_EQ(written, 4); |
universe@541 | 465 | EXPECT_EQ(buf.size, 8); |
universe@541 | 466 | EXPECT_EQ(buf.pos, 8); |
universe@541 | 467 | EXPECT_EQ(buf.capacity, 8); |
universe@541 | 468 | EXPECT_EQ(memcmp(buf.space, "preptest", 8), 0); |
universe@538 | 469 | } |
universe@538 | 470 | |
universe@538 | 471 | TEST_F(BufferWrite, PutStringWrapperDiscard) { |
universe@541 | 472 | const char *data = "testing"; |
universe@541 | 473 | ASSERT_EQ(buf.capacity, 8); |
universe@541 | 474 | ASSERT_EQ(buf.pos, 4); |
universe@541 | 475 | ASSERT_EQ(buf.size, 4); |
universe@541 | 476 | size_t written = cxBufferPutString(&buf, data); |
universe@541 | 477 | EXPECT_EQ(written, 4); |
universe@541 | 478 | EXPECT_EQ(buf.size, 8); |
universe@541 | 479 | EXPECT_EQ(buf.pos, 8); |
universe@541 | 480 | EXPECT_EQ(buf.capacity, 8); |
universe@541 | 481 | EXPECT_EQ(memcmp(buf.space, "preptest\0", 9), 0); |
universe@538 | 482 | } |
universe@538 | 483 | |
universe@538 | 484 | TEST_F(BufferWrite, PutStringWrapperExtend) { |
universe@541 | 485 | buf.flags |= CX_BUFFER_AUTO_EXTEND; |
universe@541 | 486 | const char *data = "testing"; |
universe@541 | 487 | ASSERT_EQ(buf.capacity, 8); |
universe@541 | 488 | ASSERT_EQ(buf.pos, 4); |
universe@541 | 489 | ASSERT_EQ(buf.size, 4); |
universe@541 | 490 | size_t written = cxBufferPutString(&buf, data); |
universe@541 | 491 | EXPECT_EQ(written, 7); |
universe@541 | 492 | EXPECT_EQ(buf.size, 11); |
universe@541 | 493 | EXPECT_EQ(buf.pos, 11); |
universe@541 | 494 | EXPECT_GE(buf.capacity, 11); |
universe@541 | 495 | EXPECT_EQ(memcmp(buf.space, "preptesting", 11), 0); |
universe@541 | 496 | } |
universe@538 | 497 | |
universe@541 | 498 | TEST_F(BufferWrite, MultOverflow) { |
universe@541 | 499 | const char *data = "testing"; |
universe@541 | 500 | ASSERT_EQ(buf.capacity, 8); |
universe@541 | 501 | ASSERT_EQ(buf.pos, 4); |
universe@541 | 502 | ASSERT_EQ(buf.size, 4); |
universe@541 | 503 | size_t written = cxBufferWrite(data, 8, SIZE_MAX / 4, &buf); |
universe@541 | 504 | EXPECT_EQ(written, 0); |
universe@541 | 505 | EXPECT_EQ(buf.capacity, 8); |
universe@541 | 506 | EXPECT_EQ(buf.pos, 4); |
universe@541 | 507 | EXPECT_EQ(buf.size, 4); |
universe@541 | 508 | EXPECT_EQ(memcmp(buf.space, "prep\0", 5), 0); |
universe@538 | 509 | } |
universe@541 | 510 | |
universe@541 | 511 | TEST_F(BufferWrite, MaxCapaOverflow) { |
universe@541 | 512 | buf.flags |= CX_BUFFER_AUTO_EXTEND; |
universe@541 | 513 | const char *data = "testing"; |
universe@541 | 514 | ASSERT_EQ(buf.capacity, 8); |
universe@541 | 515 | ASSERT_EQ(buf.pos, 4); |
universe@541 | 516 | ASSERT_EQ(buf.size, 4); |
universe@541 | 517 | size_t written = cxBufferWrite(data, 1, SIZE_MAX - 2, &buf); |
universe@541 | 518 | EXPECT_EQ(written, 0); |
universe@541 | 519 | EXPECT_EQ(buf.capacity, 8); |
universe@541 | 520 | EXPECT_EQ(buf.pos, 4); |
universe@541 | 521 | EXPECT_EQ(buf.size, 4); |
universe@541 | 522 | EXPECT_EQ(memcmp(buf.space, "prep\0", 5), 0); |
universe@541 | 523 | } |
universe@541 | 524 | |
universe@541 | 525 | TEST_F(BufferWrite, OnlyOverwrite) { |
universe@541 | 526 | buf.flags |= CX_BUFFER_AUTO_EXTEND; |
universe@541 | 527 | ASSERT_EQ(buf.capacity, 8); |
universe@541 | 528 | memcpy(buf.space, "preptest", 8); |
universe@541 | 529 | buf.pos = 3; |
universe@541 | 530 | buf.size = 8; |
universe@541 | 531 | size_t written = cxBufferWrite("XXX", 2, 2, &buf); |
universe@541 | 532 | EXPECT_EQ(written, 2); |
universe@541 | 533 | EXPECT_EQ(buf.capacity, 8); |
universe@541 | 534 | EXPECT_EQ(buf.size, 8); |
universe@541 | 535 | EXPECT_EQ(buf.pos, 7); |
universe@541 | 536 | EXPECT_EQ(memcmp(buf.space, "preXXX\0t", 8), 0); |
universe@541 | 537 | } |
universe@545 | 538 | |
universe@545 | 539 | TEST_F(BufferWrite, FlushAtCapacity) { |
universe@545 | 540 | enableFlushing(); |
universe@545 | 541 | ASSERT_EQ(buf.capacity, 8); |
universe@545 | 542 | ASSERT_EQ(buf.pos, 4); |
universe@545 | 543 | size_t written = cxBufferWrite("foo", 1, 3, &buf); |
universe@545 | 544 | EXPECT_EQ(written, 3); |
universe@545 | 545 | ASSERT_EQ(buf.pos, 7); |
universe@545 | 546 | ASSERT_EQ(buf.size, 7); |
universe@545 | 547 | ASSERT_EQ(target.pos, 0); |
universe@545 | 548 | ASSERT_EQ(target.size, 0); |
universe@545 | 549 | written = cxBufferWrite("hello", 1, 5, &buf); |
universe@545 | 550 | EXPECT_EQ(written, 5); |
universe@545 | 551 | EXPECT_EQ(buf.pos, 0); |
universe@545 | 552 | EXPECT_EQ(buf.size, 0); |
universe@545 | 553 | EXPECT_EQ(buf.capacity, 8); |
universe@545 | 554 | EXPECT_EQ(target.pos, 12); |
universe@545 | 555 | ASSERT_EQ(target.size, 12); |
universe@545 | 556 | EXPECT_EQ(memcmp(target.space, "prepfoohello", 12), 0); |
universe@545 | 557 | } |
universe@546 | 558 | |
universe@546 | 559 | TEST_F(BufferWrite, FlushAtThreshold) { |
universe@546 | 560 | enableFlushing(); |
universe@546 | 561 | buf.flush_threshold = 12; |
universe@546 | 562 | buf.flags |= CX_BUFFER_AUTO_EXTEND; |
universe@546 | 563 | ASSERT_EQ(buf.capacity, 8); |
universe@546 | 564 | ASSERT_EQ(buf.pos, 4); |
universe@546 | 565 | size_t written = cxBufferWrite("foobar", 1, 6, &buf); |
universe@546 | 566 | EXPECT_EQ(written, 6); |
universe@546 | 567 | ASSERT_EQ(buf.pos, 10); |
universe@546 | 568 | ASSERT_EQ(buf.size, 10); |
universe@546 | 569 | ASSERT_GE(buf.capacity, 10); |
universe@546 | 570 | ASSERT_LE(buf.capacity, 12); |
universe@546 | 571 | ASSERT_EQ(target.pos, 0); |
universe@546 | 572 | ASSERT_EQ(target.size, 0); |
universe@546 | 573 | written = cxBufferWrite("hello", 1, 5, &buf); |
universe@546 | 574 | EXPECT_EQ(written, 5); |
universe@546 | 575 | EXPECT_EQ(buf.pos, 0); |
universe@546 | 576 | EXPECT_EQ(buf.size, 0); |
universe@546 | 577 | EXPECT_LE(buf.capacity, 12); |
universe@546 | 578 | EXPECT_EQ(target.pos, 15); |
universe@546 | 579 | ASSERT_EQ(target.size, 15); |
universe@546 | 580 | EXPECT_EQ(memcmp(target.space, "prepfoobarhello", 15), 0); |
universe@546 | 581 | } |
universe@547 | 582 | |
universe@547 | 583 | class BufferSeek : public ::testing::Test { |
universe@547 | 584 | protected: |
universe@547 | 585 | void SetUp() override { |
universe@547 | 586 | cxBufferInit(&buf, nullptr, 16, cxDefaultAllocator, CX_BUFFER_DEFAULT); |
universe@547 | 587 | buf.size = 6; |
universe@547 | 588 | buf.pos = 3; |
universe@547 | 589 | } |
universe@547 | 590 | |
universe@547 | 591 | void TearDown() override { |
universe@547 | 592 | cxBufferDestroy(&buf); |
universe@547 | 593 | } |
universe@547 | 594 | |
universe@547 | 595 | CxBuffer buf{}; |
universe@547 | 596 | }; |
universe@547 | 597 | |
universe@547 | 598 | TEST_F(BufferSeek, SetZero) { |
universe@547 | 599 | int result = cxBufferSeek(&buf, 0, SEEK_SET); |
universe@547 | 600 | EXPECT_EQ(result, 0); |
universe@547 | 601 | EXPECT_EQ(buf.pos, 0); |
universe@547 | 602 | } |
universe@547 | 603 | |
universe@547 | 604 | TEST_F(BufferSeek, SetValid) { |
universe@547 | 605 | int result = cxBufferSeek(&buf, 5, SEEK_SET); |
universe@547 | 606 | EXPECT_EQ(result, 0); |
universe@547 | 607 | EXPECT_EQ(buf.pos, 5); |
universe@547 | 608 | } |
universe@547 | 609 | |
universe@547 | 610 | TEST_F(BufferSeek, SetInvalid) { |
universe@547 | 611 | ASSERT_EQ(buf.pos, 3); |
universe@547 | 612 | int result = cxBufferSeek(&buf, 6, SEEK_SET); |
universe@547 | 613 | EXPECT_NE(result, 0); |
universe@547 | 614 | EXPECT_EQ(buf.pos, 3); |
universe@547 | 615 | } |
universe@547 | 616 | |
universe@547 | 617 | TEST_F(BufferSeek, CurZero) { |
universe@547 | 618 | ASSERT_EQ(buf.pos, 3); |
universe@547 | 619 | int result = cxBufferSeek(&buf, 0, SEEK_CUR); |
universe@547 | 620 | EXPECT_EQ(result, 0); |
universe@547 | 621 | EXPECT_EQ(buf.pos, 3); |
universe@547 | 622 | } |
universe@547 | 623 | |
universe@547 | 624 | TEST_F(BufferSeek, CurValidPositive) { |
universe@547 | 625 | ASSERT_EQ(buf.pos, 3); |
universe@547 | 626 | int result = cxBufferSeek(&buf, 2, SEEK_CUR); |
universe@547 | 627 | EXPECT_EQ(result, 0); |
universe@547 | 628 | EXPECT_EQ(buf.pos, 5); |
universe@547 | 629 | } |
universe@547 | 630 | |
universe@547 | 631 | TEST_F(BufferSeek, CurValidNegative) { |
universe@547 | 632 | ASSERT_EQ(buf.pos, 3); |
universe@547 | 633 | int result = cxBufferSeek(&buf, -3, SEEK_CUR); |
universe@547 | 634 | EXPECT_EQ(result, 0); |
universe@547 | 635 | EXPECT_EQ(buf.pos, 0); |
universe@547 | 636 | } |
universe@547 | 637 | |
universe@547 | 638 | TEST_F(BufferSeek, CurInvalidPositive) { |
universe@547 | 639 | ASSERT_EQ(buf.pos, 3); |
universe@547 | 640 | int result = cxBufferSeek(&buf, 3, SEEK_CUR); |
universe@547 | 641 | EXPECT_NE(result, 0); |
universe@547 | 642 | EXPECT_EQ(buf.pos, 3); |
universe@547 | 643 | } |
universe@547 | 644 | |
universe@547 | 645 | TEST_F(BufferSeek, CurInvalidNegative) { |
universe@547 | 646 | ASSERT_EQ(buf.pos, 3); |
universe@547 | 647 | int result = cxBufferSeek(&buf, -4, SEEK_CUR); |
universe@547 | 648 | EXPECT_NE(result, 0); |
universe@547 | 649 | EXPECT_EQ(buf.pos, 3); |
universe@547 | 650 | } |
universe@547 | 651 | |
universe@547 | 652 | TEST_F(BufferSeek, EndZero) { |
universe@547 | 653 | ASSERT_EQ(buf.size, 6); |
universe@547 | 654 | int result = cxBufferSeek(&buf, 0, SEEK_END); |
universe@547 | 655 | // the (past-the-)end position is always invalid |
universe@547 | 656 | EXPECT_NE(result, 0); |
universe@547 | 657 | EXPECT_EQ(buf.pos, 3); |
universe@547 | 658 | } |
universe@547 | 659 | |
universe@547 | 660 | TEST_F(BufferSeek, EndValid) { |
universe@547 | 661 | ASSERT_EQ(buf.size, 6); |
universe@547 | 662 | int result = cxBufferSeek(&buf, -6, SEEK_END); |
universe@547 | 663 | EXPECT_EQ(result, 0); |
universe@547 | 664 | EXPECT_EQ(buf.pos, 0); |
universe@547 | 665 | } |
universe@547 | 666 | |
universe@547 | 667 | TEST_F(BufferSeek, EndInvalid) { |
universe@547 | 668 | ASSERT_EQ(buf.size, 6); |
universe@547 | 669 | int result = cxBufferSeek(&buf, 1, SEEK_END); |
universe@547 | 670 | EXPECT_NE(result, 0); |
universe@547 | 671 | EXPECT_EQ(buf.pos, 3); |
universe@547 | 672 | } |
universe@547 | 673 | |
universe@547 | 674 | TEST_F(BufferSeek, WhenceInvalid) { |
universe@547 | 675 | ASSERT_EQ(buf.size, 6); |
universe@547 | 676 | ASSERT_EQ(buf.pos, 3); |
universe@547 | 677 | int result = cxBufferSeek(&buf, 2, 9000); |
universe@547 | 678 | EXPECT_NE(result, 0); |
universe@547 | 679 | EXPECT_EQ(buf.size, 6); |
universe@547 | 680 | EXPECT_EQ(buf.pos, 3); |
universe@547 | 681 | } |