ucx: test/test_buffer.cpp@2ff6e9184468 (annotated)

test/test_buffer.cpp@2ff6e9184468 (annotated)

test/test_buffer.cpp

Sun, 24 Apr 2022 17:45:09 +0200

author: Mike Becker <universe@uap-core.de>
date: Sun, 24 Apr 2022 17:45:09 +0200
changeset 535: 2ff6e9184468
parent 530: e866516cac17
child 536: cb9b9739055e
permissions: -rw-r--r--

#170 add several more buffer tests

 /*
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
  *
  * Copyright 2021 Mike Becker, Olaf Wintermann All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are met:
  *
  *   1. Redistributions of source code must retain the above copyright
  *      notice, this list of conditions and the following disclaimer.
  *
  *   2. Redistributions in binary form must reproduce the above copyright
  *      notice, this list of conditions and the following disclaimer in the
  *      documentation and/or other materials provided with the distribution.
  *
  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  * POSSIBILITY OF SUCH DAMAGE.
  */
 #include "cx/buffer.h"
 #include <gtest/gtest.h>
 #include "util_allocator.h"
 TEST(BufferInit, WrapSpace) {
     CxTestingAllocator alloc;
     CxBuffer buf;
     void *space = cxMalloc(&alloc, 16);
     cxBufferInit(&buf, space, 16, &alloc, CX_BUFFER_DEFAULT);
     EXPECT_EQ(buf.space, space);
     EXPECT_EQ(buf.flags & CX_BUFFER_AUTO_EXTEND, 0);
     EXPECT_EQ(buf.flags & CX_BUFFER_FREE_CONTENTS, 0);
     EXPECT_EQ(buf.pos, 0);
     EXPECT_EQ(buf.size, 0);
     EXPECT_EQ(buf.capacity, 16);
     EXPECT_EQ(buf.allocator, &alloc);
     cxBufferDestroy(&buf);
     EXPECT_FALSE(alloc.verify());
     cxFree(&alloc, space);
     EXPECT_TRUE(alloc.verify());
 }
 TEST(BufferInit, WrapSpaceAutoFree) {
     CxTestingAllocator alloc;
     CxBuffer buf;
     void *space = cxMalloc(&alloc, 16);
     cxBufferInit(&buf, space, 16, &alloc, CX_BUFFER_FREE_CONTENTS);
     EXPECT_EQ(buf.space, space);
     EXPECT_EQ(buf.flags & CX_BUFFER_AUTO_EXTEND, 0);
     EXPECT_EQ(buf.flags & CX_BUFFER_FREE_CONTENTS, CX_BUFFER_FREE_CONTENTS);
     EXPECT_EQ(buf.pos, 0);
     EXPECT_EQ(buf.size, 0);
     EXPECT_EQ(buf.capacity, 16);
     EXPECT_EQ(buf.allocator, &alloc);
     EXPECT_FALSE(alloc.verify());
     cxBufferDestroy(&buf);
     EXPECT_TRUE(alloc.verify());
 }
 TEST(BufferInit, FreshSpace) {
     CxTestingAllocator alloc;
     CxBuffer buf;
     cxBufferInit(&buf, nullptr, 8, &alloc, CX_BUFFER_DEFAULT);
     EXPECT_NE(buf.space, nullptr);
     EXPECT_EQ(buf.flags & CX_BUFFER_AUTO_EXTEND, 0);
     EXPECT_EQ(buf.flags & CX_BUFFER_FREE_CONTENTS, CX_BUFFER_FREE_CONTENTS);
     EXPECT_EQ(buf.pos, 0);
     EXPECT_EQ(buf.size, 0);
     EXPECT_EQ(buf.capacity, 8);
     EXPECT_EQ(buf.allocator, &alloc);
     EXPECT_FALSE(alloc.verify()); // space is still allocated
     cxBufferDestroy(&buf);
     EXPECT_TRUE(alloc.verify());
 }
 class BufferShiftFixture : public ::testing::Test {
 protected:
     void SetUp() override {
         ASSERT_TRUE(alloc.verify());
         cxBufferInit(&buf, nullptr, 16, &alloc, CX_BUFFER_DEFAULT);
         memcpy(buf.space, "test____________", 16);
         buf.capacity = 8; // purposely pretend that the buffer has less capacity s.t. we can test beyond the range
         buf.pos = 4;
         buf.size = 4;
     }
     void TearDown() override {
         cxBufferDestroy(&buf);
         EXPECT_TRUE(alloc.verify());
     }
     CxTestingAllocator alloc;
     CxBuffer buf{};
 };
 class BufferShiftLeft : public BufferShiftFixture {
 };
 TEST_F(BufferShiftLeft, Zero) {
     ASSERT_EQ(buf.pos, 4);
     ASSERT_EQ(buf.size, 4);
     int ret = cxBufferShiftLeft(&buf, 0);
     EXPECT_EQ(ret, 0);
     EXPECT_EQ(buf.pos, 4);
     EXPECT_EQ(buf.size, 4);
     EXPECT_TRUE(memcmp(buf.space, "test________", 8) == 0);
 }
 TEST_F(BufferShiftLeft, Standard) {
     ASSERT_EQ(buf.pos, 4);
     ASSERT_EQ(buf.size, 4);
     int ret = cxBufferShiftLeft(&buf, 2);
     EXPECT_EQ(ret, 0);
     EXPECT_EQ(buf.pos, 2);
     EXPECT_EQ(buf.size, 2);
     EXPECT_TRUE(memcmp(buf.space, "stst________", 8) == 0);
 }
 TEST_F(BufferShiftLeft, Overshift) {
     ASSERT_LT(buf.pos, 6);
     ASSERT_LT(buf.size, 6);
     int ret = cxBufferShiftLeft(&buf, 6);
     EXPECT_EQ(ret, 0);
     EXPECT_EQ(buf.pos, 0);
     EXPECT_EQ(buf.size, 0);
     EXPECT_TRUE(memcmp(buf.space, "test________", 8) == 0);
 }
 TEST_F(BufferShiftLeft, OvershiftPosOnly) {
     buf.pos = 2;
     ASSERT_EQ(buf.size, 4);
     int ret = cxBufferShiftLeft(&buf, 3);
     EXPECT_EQ(ret, 0);
     EXPECT_EQ(buf.pos, 0);
     EXPECT_EQ(buf.size, 1);
     EXPECT_TRUE(memcmp(buf.space, "test________", 8) == 0);
 }
 TEST_F(BufferShiftLeft, OffsetInterface) {
     buf.pos = 3;
     ASSERT_EQ(buf.size, 4);
     int ret = cxBufferShift(&buf, -2);
     EXPECT_EQ(ret, 0);
     EXPECT_EQ(buf.pos, 1);
     EXPECT_EQ(buf.size, 2);
     EXPECT_TRUE(memcmp(buf.space, "stst________", 8) == 0);
 }
 class BufferShiftRight : public BufferShiftFixture {
 };
 TEST_F(BufferShiftRight, Zero) {
     ASSERT_EQ(buf.pos, 4);
     ASSERT_EQ(buf.size, 4);
     int ret = cxBufferShiftRight(&buf, 0);
     EXPECT_EQ(ret, 0);
     EXPECT_EQ(buf.pos, 4);
     EXPECT_EQ(buf.size, 4);
     EXPECT_TRUE(memcmp(buf.space, "test________", 8) == 0);
 }
 TEST_F(BufferShiftRight, Standard) {
     ASSERT_EQ(buf.pos, 4);
     ASSERT_EQ(buf.size, 4);
     int ret = cxBufferShiftRight(&buf, 3);
     EXPECT_EQ(ret, 0);
     EXPECT_EQ(buf.pos, 7);
     EXPECT_EQ(buf.size, 7);
     EXPECT_TRUE(memcmp(buf.space, "testest_____", 8) == 0);
 }
 TEST_F(BufferShiftRight, OvershiftDiscard) {
     ASSERT_EQ(buf.pos, 4);
     ASSERT_EQ(buf.size, 4);
     ASSERT_EQ(buf.capacity, 8);
     int ret = cxBufferShiftRight(&buf, 6);
     EXPECT_EQ(ret, 0);
     EXPECT_EQ(buf.pos, 8);
     EXPECT_EQ(buf.size, 8);
     EXPECT_EQ(buf.capacity, 8);
     EXPECT_TRUE(memcmp(buf.space, "test__te____", 8) == 0);
 }
 TEST_F(BufferShiftRight, OvershiftExtend) {
     ASSERT_EQ(buf.pos, 4);
     ASSERT_EQ(buf.size, 4);
     ASSERT_EQ(buf.capacity, 8);
     buf.flags |= CX_BUFFER_AUTO_EXTEND;
     int ret = cxBufferShiftRight(&buf, 6);
     EXPECT_EQ(ret, 0);
     EXPECT_EQ(buf.pos, 10);
     EXPECT_EQ(buf.size, 10);
     EXPECT_GE(buf.capacity, 10);
     EXPECT_TRUE(memcmp(buf.space, "test__test__", 8) == 0);
 }
 TEST_F(BufferShiftRight, OffsetInterface) {
     buf.pos = 3;
     ASSERT_EQ(buf.size, 4);
     int ret = cxBufferShift(&buf, 2);
     EXPECT_EQ(ret, 0);
     EXPECT_EQ(buf.pos, 5);
     EXPECT_EQ(buf.size, 6);
     EXPECT_TRUE(memcmp(buf.space, "tetest______", 8) == 0);
 }
 TEST(BufferMinimumCapacity, Sufficient) {
     CxTestingAllocator alloc;
     auto space = cxMalloc(&alloc, 8);
     CxBuffer buf;
     cxBufferInit(&buf, space, 8, &alloc, CX_BUFFER_FREE_CONTENTS);
     memcpy(space, "Testing", 8);
     buf.size = 8;
     cxBufferMinimumCapacity(&buf, 6);
     EXPECT_EQ(buf.capacity, 8);
     EXPECT_EQ(buf.size, 8);
     EXPECT_TRUE(memcmp(buf.space, "Testing", 8) == 0);
     cxBufferDestroy(&buf);
     EXPECT_TRUE(alloc.verify());
 }
 TEST(BufferMinimumCapacity, Extend) {
     CxTestingAllocator alloc;
     auto space = cxMalloc(&alloc, 8);
     CxBuffer buf;
     cxBufferInit(&buf, space, 8, &alloc, CX_BUFFER_FREE_CONTENTS); // NO auto extend!
     memcpy(space, "Testing", 8);
     buf.size = 8;
     cxBufferMinimumCapacity(&buf, 16);
     EXPECT_EQ(buf.capacity, 16);
     EXPECT_EQ(buf.size, 8);
     EXPECT_TRUE(memcmp(buf.space, "Testing", 8) == 0);
     cxBufferDestroy(&buf);
     EXPECT_TRUE(alloc.verify());
 }

Mercurial > hg > ucx / annotate

test/test_buffer.cpp@2ff6e9184468 (annotated)

test/test_buffer.cpp