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#include "single_heap_gtest.hpp"

using namespace rocshmem;

TEST_F(SingleHeapTestFixture, unallocated_size_check) {
  ASSERT_EQ(single_heap_.get_size(), 1 << 30);
}

TEST_F(SingleHeapTestFixture, unallocated_avail_check) {
  ASSERT_EQ(single_heap_.get_avail(), 1 << 30);
}

TEST_F(SingleHeapTestFixture, unallocated_used_check) {
  ASSERT_EQ(single_heap_.get_used(), 0);
}

TEST_F(SingleHeapTestFixture, free_null) {
  void* ptr{nullptr};
  single_heap_.free(ptr);
}

TEST_F(SingleHeapTestFixture, alloc_0) {
  size_t request_size{0};
  void* ptr{nullptr};

  single_heap_.malloc(&ptr, request_size);
  ASSERT_EQ(ptr, nullptr);

  size_t expected_used{request_size};
  ASSERT_EQ(single_heap_.get_used(), expected_used);
  size_t expected_avail{single_heap_.get_size() - expected_used};
  ASSERT_EQ(single_heap_.get_avail(), expected_avail);

  single_heap_.free(ptr);

  expected_used = 0;
  ASSERT_EQ(single_heap_.get_used(), expected_used);
  expected_avail = single_heap_.get_size();
  ASSERT_EQ(single_heap_.get_avail(), expected_avail);
}

TEST_F(SingleHeapTestFixture, alloc_1) {
  size_t request_size{1};
  void* ptr{nullptr};

  single_heap_.malloc(&ptr, request_size);
  ASSERT_NE(ptr, nullptr);

  size_t expected_used{128};
  ASSERT_EQ(single_heap_.get_used(), expected_used);
  size_t expected_avail{single_heap_.get_size() - expected_used};
  ASSERT_EQ(single_heap_.get_avail(), expected_avail);

  single_heap_.free(ptr);

  expected_used = 0;
  ASSERT_EQ(single_heap_.get_used(), expected_used);
  expected_avail = single_heap_.get_size();
  ASSERT_EQ(single_heap_.get_avail(), expected_avail);
}

TEST_F(SingleHeapTestFixture, alloc_256) {
  size_t request_size{256};
  void* ptr{nullptr};

  single_heap_.malloc(&ptr, request_size);
  ASSERT_NE(ptr, nullptr);

  size_t expected_used{request_size};
  ASSERT_EQ(single_heap_.get_used(), expected_used);
  size_t expected_avail{single_heap_.get_size() - expected_used};
  ASSERT_EQ(single_heap_.get_avail(), expected_avail);

  single_heap_.free(ptr);

  expected_used = 0;
  ASSERT_EQ(single_heap_.get_used(), expected_used);
  expected_avail = single_heap_.get_size();
  ASSERT_EQ(single_heap_.get_avail(), expected_avail);
}

TEST_F(SingleHeapTestFixture, alloc_1024) {
  size_t request_size{1024};
  void* ptr{nullptr};

  single_heap_.malloc(&ptr, request_size);
  ASSERT_NE(ptr, nullptr);

  size_t expected_used{request_size};
  ASSERT_EQ(single_heap_.get_used(), expected_used);
  size_t expected_avail{single_heap_.get_size() - expected_used};
  ASSERT_EQ(single_heap_.get_avail(), expected_avail);

  single_heap_.free(ptr);

  expected_used = 0;
  ASSERT_EQ(single_heap_.get_used(), expected_used);
  expected_avail = single_heap_.get_size();
  ASSERT_EQ(single_heap_.get_avail(), expected_avail);
}

TEST_F(SingleHeapTestFixture, alloc_4097) {
  size_t request_size{4097};
  void* ptr{nullptr};

  single_heap_.malloc(&ptr, request_size);
  ASSERT_NE(ptr, nullptr);

  size_t expected_used{8192};
  ASSERT_EQ(single_heap_.get_used(), expected_used);
  size_t expected_avail{single_heap_.get_size() - expected_used};
  ASSERT_EQ(single_heap_.get_avail(), expected_avail);

  single_heap_.free(ptr);

  expected_used = 0;
  ASSERT_EQ(single_heap_.get_used(), expected_used);
  expected_avail = single_heap_.get_size();
  ASSERT_EQ(single_heap_.get_avail(), expected_avail);
}