unittests/RTLinearAllocatorTest.cpp

//===- RTLinearAllocatorTest.cpp ------------------------------------------===//
//
//                     The MCLinker Project
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#include "mcld/Support/Allocators.h"
#include "RTLinearAllocatorTest.h"

using namespace mcld;
using namespace mcldtest;

// Constructor can do set-up work for all test here.
RTLinearAllocatorTest::RTLinearAllocatorTest() {
  // create testee. modify it if need
  m_pTestee = new LinearAllocator<Data, 0>(CHUNK_SIZE);
}

// Destructor can do clean-up work that doesn't throw exceptions here.
RTLinearAllocatorTest::~RTLinearAllocatorTest() {
  delete m_pTestee;
}

// SetUp() will be called immediately before each test.
void RTLinearAllocatorTest::SetUp() {
}

// TearDown() will be called immediately after each test.
void RTLinearAllocatorTest::TearDown() {
}

//==========================================================================//
// Testcases
//

TEST_F(RTLinearAllocatorTest, AllocateN) {
  Data* pointer = m_pTestee->allocate(10);
  ASSERT_FALSE(0 == pointer);
  ASSERT_TRUE(CHUNK_SIZE == m_pTestee->max_size());
  ASSERT_FALSE(m_pTestee->empty());
}

TEST_F(RTLinearAllocatorTest, allocate) {
  Data* pointer = m_pTestee->allocate();
  ASSERT_FALSE(0 == pointer);
  ASSERT_TRUE(CHUNK_SIZE == m_pTestee->max_size());
  ASSERT_FALSE(m_pTestee->empty());
}

TEST_F(RTLinearAllocatorTest, allocateOver) {
  Data* pointer = m_pTestee->allocate(CHUNK_SIZE + 1);
  ASSERT_TRUE(0 == pointer);
  ASSERT_TRUE(0 == m_pTestee->max_size());
  ASSERT_TRUE(m_pTestee->empty());
}

TEST_F(RTLinearAllocatorTest, alloc_construct) {
  Data* pointer = m_pTestee->allocate();
  m_pTestee->construct(pointer);
  ASSERT_TRUE(1 == pointer->one);
  ASSERT_TRUE(2 == pointer->two);
  ASSERT_TRUE(3 == pointer->three);
  ASSERT_TRUE(4 == pointer->four);
}

TEST_F(RTLinearAllocatorTest, alloc_constructCopy) {
  Data* pointer = m_pTestee->allocate();
  Data data(7, 7, 7, 7);
  m_pTestee->construct(pointer, data);

  ASSERT_TRUE(7 == pointer->one);
  ASSERT_TRUE(7 == pointer->two);
  ASSERT_TRUE(7 == pointer->three);
  ASSERT_TRUE(7 == pointer->four);
}

TEST_F(RTLinearAllocatorTest, allocN_construct) {
  Data* pointer = m_pTestee->allocate(10);
  m_pTestee->construct(pointer);
  ASSERT_TRUE(1 == pointer->one);
  ASSERT_TRUE(2 == pointer->two);
  ASSERT_TRUE(3 == pointer->three);
  ASSERT_TRUE(4 == pointer->four);
}

TEST_F(RTLinearAllocatorTest, allocN_constructCopy) {
  Data* pointer = m_pTestee->allocate(10);
  Data data(7, 7, 7, 7);
  m_pTestee->construct(pointer, data);

  ASSERT_TRUE(7 == pointer->one);
  ASSERT_TRUE(7 == pointer->two);
  ASSERT_TRUE(7 == pointer->three);
  ASSERT_TRUE(7 == pointer->four);
}

TEST_F(RTLinearAllocatorTest, multi_alloc_ctor_iterate) {
  for (int i = 0; i < 101; ++i) {
    Data* pointer = m_pTestee->allocate();
    m_pTestee->construct(pointer);
    pointer->one = i;
  }
  /**
          Alloc::iterator data, dEnd = m_pTestee->end();
          int counter = 0;
          for (data=m_pTestee->begin(); data!=dEnd; ++data) {
                  ASSERT_EQ(counter, (*data).one);
                  ++counter;
          }
  **/
}

TEST_F(RTLinearAllocatorTest, multi_allocN_ctor_iterate) {
  int counter = 0;
  for (int i = 0; i < 10000; ++i) {
    Data* pointer = m_pTestee->allocate(10);
    for (int j = 0; j < 10; ++j) {
      m_pTestee->construct(pointer);
      pointer->one = counter;
      ++pointer;
      ++counter;
    }
  }
  /**
          Alloc::iterator data, dEnd = m_pTestee->end();
          counter = 0;
          for (data=m_pTestee->begin(); data!=dEnd; ++data) {
                  ASSERT_EQ(counter, (*data).one);
                  ++counter;
          }
  **/
}