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blt-gp
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blt-gp/tests/stack_tests.cpp

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/*
* <Short Description>
* Copyright (C) 2024 Brett Terpstra
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
#include <blt/gp/stack.h>
#include <blt/gp/operations.h>
#include <blt/std/logging.h>
#include <blt/std/types.h>
#include <blt/std/random.h>
#include <random>
#include <iostream>
template<typename T, typename Func>
T make_data(T t, Func&& func)
{
for (const auto& [index, v] : blt::enumerate(t.data))
v = func(index);
return t;
}
template<typename T, typename U>
blt::ptrdiff_t compare(const T& t, const U& u)
{
for (const auto& [index, v] : blt::enumerate(t.data))
{
if (u.data[index] != v)
return static_cast<blt::ptrdiff_t>(index);
}
return -1;
}
#define MAKE_VARIABLE(SIZE) large_##SIZE base_##SIZE = make_data(large_##SIZE{}, [](auto index) { \
return static_cast<blt::u8>(blt::random::murmur_random64c<blt::size_t>(SEED + index, 0, 256)); \
}); \
large_##SIZE secondary_##SIZE = make_data(large_##SIZE{}, [](auto index) { \
return static_cast<blt::u8>(blt::random::murmur_random64c<blt::size_t>(SEED + index, 0, 256)); \
}); \
large_##SIZE tertiary_##SIZE = make_data(large_##SIZE{}, [](auto index) { \
return static_cast<blt::u8>(blt::random::murmur_random64c<blt::size_t>(SEED + index, 0, 256)); \
})
#define RUN_TEST(FAILURE_COND, STACK, PASS, ...) do { if (FAILURE_COND) { BLT_ERROR(__VA_ARGS__); } else { BLT_DEBUG_STREAM << PASS << " | " << STACK.size() << "\n"; } } while(false)
#define RUN_TEST_SIZE(VALUE, SIZE, STACK) RUN_TEST(auto index = compare(VALUE, STACK.pop<SIZE>()); index >= 0, STACK, #SIZE " test PASSED.", "Failed to pop large value (" #SIZE "), failed at index %ld", index)
#define RUN_TEST_TYPE(TYPE, EXPECTED, STACK) RUN_TEST(auto val = STACK.pop<TYPE>(); val != EXPECTED, STACK, #TYPE " test PASSED", "Failed to pop correct " #TYPE " (" #EXPECTED ") found %lf", val);
const blt::u64 SEED = std::random_device()();
struct large_256
{
blt::u8 data[256];
};
struct large_2048
{
blt::u8 data[2048];
};
struct large_4096
{
blt::u8 data[4096];
};
struct large_6123
{
blt::u8 data[6123];
};
struct large_18290
{
blt::u8 data[18290];
};
MAKE_VARIABLE(256);
MAKE_VARIABLE(2048);
MAKE_VARIABLE(4096);
MAKE_VARIABLE(6123);
MAKE_VARIABLE(18290);
void test_basic_types()
{
BLT_INFO("Testing pushing types, will transfer and pop off each stack.");
blt::gp::stack_allocator stack;
stack.push(50.0f);
BLT_TRACE_STREAM << "Pushed float: " << stack.size() << "\n";
stack.push(base_2048);
BLT_TRACE_STREAM << "Pushed 2048: " << stack.size() << "\n";
stack.push(25.0f);
BLT_TRACE_STREAM << "Pushed float: " << stack.size() << "\n";
stack.push(-24.0f);
BLT_TRACE_STREAM << "Pushed float: " << stack.size() << "\n";
stack.push(base_256);
BLT_TRACE_STREAM << "Pushed 256: " << stack.size() << "\n";
stack.push(secondary_256);
BLT_TRACE_STREAM << "Pushed 256*: " << stack.size() << "\n";
stack.push(false);
BLT_TRACE_STREAM << "Pushed bool: " << stack.size() << "\n";
stack.push(523);
BLT_TRACE_STREAM << "Pushed int: " << stack.size() << "\n";
stack.push(base_6123);
BLT_TRACE_STREAM << "Pushed 6123: " << stack.size() << "\n";
std::cout << std::endl;
{
BLT_INFO("Popping 6123, int, and bool via transfer");
blt::gp::stack_allocator to;
stack.transfer_bytes(to, sizeof(large_6123));
stack.transfer_bytes(to, sizeof(int));
stack.transfer_bytes(to, sizeof(bool));
RUN_TEST_TYPE(bool, false, to);
RUN_TEST_TYPE(int, 523, to);
RUN_TEST_SIZE(base_6123, large_6123, to);
BLT_ASSERT(to.empty() && "Stack isn't empty despite all values popped!");
}
BLT_TRACE_STREAM << stack.size() << "\n";
std::cout << std::endl;
BLT_INFO("Pushing new data onto partially removed stack, this will test re-allocating blocks. We will also push at least one more block.");
stack.push(tertiary_256);
BLT_TRACE_STREAM << "Pushed 256^: " << stack.size() << "\n";
stack.push(69.999);
BLT_TRACE_STREAM << "Pushed double: " << stack.size() << "\n";
stack.push(secondary_2048);
BLT_TRACE_STREAM << "Pushed 2048*: " << stack.size() << "\n";
stack.push(420.6900001);
BLT_TRACE_STREAM << "Pushed double: " << stack.size() << "\n";
stack.push(base_256);
BLT_TRACE_STREAM << "Pushed 256: " << stack.size() << "\n";
stack.push(base_18290);
BLT_TRACE_STREAM << "Pushed 18290: " << stack.size() << "\n";
std::cout << std::endl;
{
BLT_INFO("Popping all data via transfer.");
blt::gp::stack_allocator to;
stack.transfer_bytes(to, sizeof(large_18290));
stack.transfer_bytes(to, sizeof(large_256));
stack.transfer_bytes(to, sizeof(double));
stack.transfer_bytes(to, sizeof(large_2048));
stack.transfer_bytes(to, sizeof(double));
stack.transfer_bytes(to, sizeof(large_256));
RUN_TEST_SIZE(tertiary_256, large_256, to);
RUN_TEST_TYPE(double, 69.999, to);
RUN_TEST_SIZE(secondary_2048, large_2048, to);
RUN_TEST_TYPE(double, 420.6900001, to);
RUN_TEST_SIZE(base_256, large_256, to);
RUN_TEST_SIZE(base_18290, large_18290, to);
BLT_ASSERT(to.empty() && "Stack isn't empty despite all values popped!");
}
BLT_TRACE_STREAM << stack.size() << "\n";
std::cout << std::endl;
BLT_INFO("Now we will test using large values where the unallocated blocks do not have enough storage.");
stack.push(secondary_18290);
BLT_TRACE_STREAM << "Pushed 18290*: " << stack.size() << "\n";
stack.push(base_4096);
BLT_TRACE_STREAM << "Pushed 4096: " << stack.size() << "\n";
stack.push(tertiary_18290);
BLT_TRACE_STREAM << "Pushed 18290^: " << stack.size() << "\n";
stack.push(secondary_6123);
BLT_TRACE_STREAM << "Pushed 6123*: " << stack.size() << "\n";
std::cout << std::endl;
{
BLT_INFO("Popping values normally.");
RUN_TEST_SIZE(secondary_6123, large_6123, stack);
RUN_TEST_SIZE(tertiary_18290, large_18290, stack);
RUN_TEST_SIZE(base_4096, large_4096, stack);
RUN_TEST_SIZE(secondary_18290, large_18290, stack);
}
BLT_TRACE_STREAM << stack.size() << "\n";
std::cout << std::endl;
BLT_INFO("Some fishy numbers in the last reported size. Let's try modifying the stack."); // fixed by moving back in pop
stack.push(88.9f);
BLT_TRACE_STREAM << "Pushed float: " << stack.size() << "\n";
{
BLT_INFO("Popping a few values.");
RUN_TEST_TYPE(float, 88.9f, stack);
RUN_TEST_SIZE(secondary_256, large_256, stack);
}
BLT_TRACE_STREAM << stack.size() << "\n";
std::cout << std::endl;
}
int main()
{
test_basic_types();
}
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