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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>
struct log_box
{
public:
log_box(const std::string& text, blt::logging::logger logger): text(text), logger(logger)
{
logger << text << '\n';
}
~log_box()
{
for (auto& c : text)
logger << '-';
logger << '\n';
}
private:
std::string text;
blt::logging::logger logger;
};
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, STACK) RUN_TEST(auto index = compare(VALUE, STACK.pop<decltype(VALUE)>()); index >= 0, STACK, blt::type_string<decltype(VALUE)>() + " test PASSED.", "Failed to pop large value (" + blt::type_string<decltype(VALUE)>() + "), failed at index %ld", index)
#define RUN_TEST_TYPE(EXPECTED, STACK) RUN_TEST(auto val = STACK.pop<decltype(EXPECTED)>(); val != EXPECTED, STACK, blt::type_string<decltype(EXPECTED)>() + " test PASSED", "Failed to pop correct " + blt::type_string<decltype(EXPECTED)>() + " (" #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];
};
// not actually 4096 but will fill the whole page (4096)
struct large_4096
{
blt::u8 data[blt::gp::stack_allocator::page_size_no_block()];
};
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()
{
log_box box("-----------------------{Stack Testing}-----------------------", BLT_INFO_STREAM);
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";
BLT_NEWLINE();
{
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(false, to);
RUN_TEST_TYPE(523, to);
RUN_TEST_SIZE(base_6123, to);
BLT_ASSERT(to.empty() && "Stack isn't empty despite all values popped!");
}
BLT_TRACE_STREAM << stack.size() << "\n";
BLT_NEWLINE();
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";
BLT_NEWLINE();
{
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, to);
RUN_TEST_TYPE(69.999, to);
RUN_TEST_SIZE(secondary_2048, to);
RUN_TEST_TYPE(420.6900001, to);
RUN_TEST_SIZE(base_256, to);
RUN_TEST_SIZE(base_18290, to);
BLT_ASSERT(to.empty() && "Stack isn't empty despite all values popped!");
}
BLT_TRACE_STREAM << stack.size() << "\n";
BLT_NEWLINE();
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";
BLT_NEWLINE();
{
BLT_INFO("Popping values normally.");
RUN_TEST_SIZE(secondary_6123, stack);
RUN_TEST_SIZE(tertiary_18290, stack);
RUN_TEST_SIZE(base_4096, stack);
RUN_TEST_SIZE(secondary_18290, stack);
}
BLT_TRACE_STREAM << stack.size() << "\n";
BLT_NEWLINE();
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(88.9f, stack);
RUN_TEST_SIZE(secondary_256, stack);
}
BLT_TRACE_STREAM << stack.size() << "\n";
BLT_NEWLINE();
BLT_INFO("We will now empty the stack and try to reuse it.");
{
RUN_TEST_SIZE(base_256, stack);
RUN_TEST_TYPE(-24.0f, stack);
RUN_TEST_TYPE(25.0f, stack);
RUN_TEST_SIZE(base_2048, stack);
RUN_TEST_TYPE(50.0f, stack);
}
BLT_TRACE_STREAM << stack.size() << "\n";
BLT_NEWLINE();
stack.push(tertiary_18290);
BLT_TRACE_STREAM << "Pushed 18290^: " << stack.size() << "\n";
stack.push(base_4096);
BLT_TRACE_STREAM << "Pushed 4096: " << stack.size() << "\n";
stack.push(50);
BLT_TRACE_STREAM << "Pushed int: " << stack.size() << "\n";
BLT_NEWLINE();
BLT_INFO("Clearing stack one final time");
RUN_TEST_TYPE(50, stack);
RUN_TEST_SIZE(base_4096, stack);
RUN_TEST_SIZE(tertiary_18290, stack);
BLT_TRACE_STREAM << stack.size() << "\n";
}
blt::gp::operation_t basic_2([](float a, float b) {
BLT_ASSERT(a == 50.0f);
BLT_ASSERT(b == 10.0f);
return a + b;
});
blt::gp::operation_t basic_mixed_4([](float a, float b, bool i, bool p) {
BLT_ASSERT(a == 50.0f);
BLT_ASSERT(b == 10.0f);
BLT_ASSERT(i);
BLT_ASSERT(!p);
return (a * (i ? 1.0f : 0.0f)) + (b * (p ? 1.0f : 0.0f));
});
blt::gp::operation_t large_256_basic_3([](const large_256& l, float a, float b) {
BLT_ASSERT(compare(l, base_256) == -1);
BLT_ASSERT_MSG(a == 691, std::to_string(a).c_str());
BLT_ASSERT_MSG(b == 69.420f, std::to_string(b).c_str());
return blt::black_box_ret(l);
});
blt::gp::operation_t large_4096_basic_3b([](const large_4096& l, float a, bool b) {
BLT_ASSERT(compare(l, base_4096) == -1);
BLT_ASSERT(a == 33);
BLT_ASSERT(b);
return blt::black_box_ret(l);
});
blt::gp::operation_t large_18290_basic_3b([](const large_18290& l, float a, bool b) {
BLT_ASSERT(compare(l, base_18290) == -1);
BLT_ASSERT(a == -2543);
BLT_ASSERT(b);
return blt::black_box_ret(l);
});
void test_basic()
{
BLT_INFO("Testing basic with stack");
{
blt::gp::stack_allocator stack;
stack.push(50.0f);
stack.push(10.0f);
BLT_TRACE_STREAM << stack.size() << "\n";
basic_2.make_callable<blt::gp::detail::empty_t>()(nullptr, stack, stack);
BLT_TRACE_STREAM << stack.size() << "\n";
auto val = stack.pop<float>();
RUN_TEST(val != 60.000000f, stack, "Basic 2 Test Passed", "Basic 2 Test Failed. Unexpected value produced '%lf'", val);
BLT_TRACE_STREAM << stack.size() << "\n";
BLT_ASSERT(stack.empty() && "Stack was not empty after basic evaluation.");
}
BLT_INFO("Testing basic with stack over boundary");
{
blt::gp::stack_allocator stack;
stack.push(std::array<blt::u8, blt::gp::stack_allocator::page_size_no_block() - sizeof(float)>{});
stack.push(50.0f);
stack.push(10.0f);
auto size = stack.size();
BLT_TRACE_STREAM << size << "\n";
BLT_ASSERT(size.blocks > 1 && "Stack doesn't have more than one block!");
basic_2.make_callable<blt::gp::detail::empty_t>()(nullptr, stack, stack);
BLT_TRACE_STREAM << stack.size() << "\n";
auto val = stack.pop<float>();
stack.pop<std::array<blt::u8, blt::gp::stack_allocator::page_size_no_block() - sizeof(float)>>();
RUN_TEST(val != 60.000000f, stack, "Basic 2 Boundary Test Passed", "Basic 2 Test Failed. Unexpected value produced '%lf'", val);
BLT_TRACE_STREAM << stack.size() << "\n";
BLT_ASSERT(stack.empty() && "Stack was not empty after basic evaluation over stack boundary");
}
}
void test_mixed()
{
BLT_INFO("Testing mixed with stack");
{
blt::gp::stack_allocator stack;
stack.push(50.0f);
stack.push(10.0f);
stack.push(true);
stack.push(false);
BLT_TRACE_STREAM << stack.size() << "\n";
basic_mixed_4.make_callable<blt::gp::detail::empty_t>()(nullptr, stack, stack);
BLT_TRACE_STREAM << stack.size() << "\n";
auto val = stack.pop<float>();
RUN_TEST(val != 50.000000f, stack, "Mixed 4 Test Passed", "Mixed 4 Test Failed. Unexpected value produced '%lf'", val);
BLT_TRACE_STREAM << stack.size() << "\n";
BLT_ASSERT(stack.empty() && "Stack was not empty after evaluation.");
}
BLT_INFO("Testing mixed with stack over boundary");
{
blt::gp::stack_allocator stack;
stack.push(std::array<blt::u8, blt::gp::stack_allocator::page_size_no_block() - sizeof(float)>{});
stack.push(50.0f);
stack.push(10.0f);
stack.push(true);
stack.push(false);
auto size = stack.size();
BLT_TRACE_STREAM << size << "\n";
BLT_ASSERT(size.blocks > 1 && "Stack doesn't have more than one block!");
basic_mixed_4.make_callable<blt::gp::detail::empty_t>()(nullptr, stack, stack);
BLT_TRACE_STREAM << stack.size() << "\n";
auto val = stack.pop<float>();
stack.pop<std::array<blt::u8, blt::gp::stack_allocator::page_size_no_block() - sizeof(float)>>();
RUN_TEST(val != 50.000000f, stack, "Mixed 4 Boundary Test Passed", "Mixed 4 Test Failed. Unexpected value produced '%lf'", val);
BLT_TRACE_STREAM << stack.size() << "\n";
BLT_ASSERT(stack.empty() && "Stack was not empty after evaluation over stack boundary");
}
}
void test_large_256()
{
BLT_INFO("Testing large 256 with stack");
{
blt::gp::stack_allocator stack;
stack.push(base_256);
stack.push(691.0f);
stack.push(69.420f);
BLT_TRACE_STREAM << stack.size() << "\n";
large_256_basic_3.make_callable<blt::gp::detail::empty_t>()(nullptr, stack, stack);
BLT_TRACE_STREAM << stack.size() << "\n";
auto val = stack.pop<large_256>();
RUN_TEST(!compare(val, base_256), stack, "Large 256 3 Test Passed", "Large 256 3 Test Failed. Unexpected value produced '%lf'", val);
BLT_TRACE_STREAM << stack.size() << "\n";
BLT_ASSERT(stack.empty() && "Stack was not empty after evaluation.");
}
BLT_INFO("Testing large 256 with stack over boundary");
{
blt::gp::stack_allocator stack;
stack.push(std::array<blt::u8, blt::gp::stack_allocator::page_size_no_block() - sizeof(large_256)>{});
stack.push(base_256);
stack.push(691.0f);
stack.push(69.420f);
auto size = stack.size();
BLT_TRACE_STREAM << size << "\n";
BLT_ASSERT(size.blocks > 1 && "Stack doesn't have more than one block!");
large_256_basic_3.make_callable<blt::gp::detail::empty_t>()(nullptr, stack, stack);
BLT_TRACE_STREAM << stack.size() << "\n";
auto val = stack.pop<large_256>();
stack.pop<std::array<blt::u8, blt::gp::stack_allocator::page_size_no_block() - sizeof(large_256)>>();
RUN_TEST(!compare(val, base_256), stack, "Large 256 3 Boundary Test Passed", "Large 256 3 Test Failed. Unexpected value produced '%lf'", val);
BLT_TRACE_STREAM << stack.size() << "\n";
BLT_ASSERT(stack.empty() && "Stack was not empty after evaluation over stack boundary");
}
}
void test_large_4096()
{
BLT_INFO("Testing large 4096 with stack");
{
blt::gp::stack_allocator stack;
stack.push(base_4096);
stack.push(33.0f);
stack.push(true);
BLT_TRACE_STREAM << stack.size() << "\n";
large_4096_basic_3b.make_callable<blt::gp::detail::empty_t>()(nullptr, stack, stack);
BLT_TRACE_STREAM << stack.size() << "\n";
auto val = stack.pop<large_4096>();
RUN_TEST(!compare(val, base_4096), stack, "Large 4096 3 Test Passed", "Large 4096 3 Test Failed. Unexpected value produced '%lf'", val);
BLT_TRACE_STREAM << stack.size() << "\n";
BLT_ASSERT(stack.empty() && "Stack was not empty after evaluation.");
}
BLT_INFO("Testing large 4096 with stack over boundary");
{
blt::gp::stack_allocator stack;
stack.push(base_4096);
stack.push(33.0f);
stack.push(true);
auto size = stack.size();
BLT_TRACE_STREAM << size << "\n";
BLT_ASSERT(size.blocks > 1 && "Stack doesn't have more than one block!");
large_4096_basic_3b.make_callable<blt::gp::detail::empty_t>()(nullptr, stack, stack);
BLT_TRACE_STREAM << stack.size() << "\n";
auto val = stack.pop<large_4096>();
RUN_TEST(!compare(val, base_256), stack, "Large 4096 3 Boundary Test Passed", "Large 4096 3 Test Failed. Unexpected value produced '%lf'", val);
BLT_TRACE_STREAM << stack.size() << "\n";
BLT_ASSERT(stack.empty() && "Stack was not empty after evaluation over stack boundary");
}
}
void test_large_18290()
{
BLT_INFO("Testing large 18290 with stack");
{
blt::gp::stack_allocator stack;
stack.push(base_18290);
stack.push(-2543.0f);
stack.push(true);
BLT_TRACE_STREAM << stack.size() << "\n";
large_18290_basic_3b.make_callable<blt::gp::detail::empty_t>()(nullptr, stack, stack);
BLT_TRACE_STREAM << stack.size() << "\n";
auto val = stack.pop<large_18290>();
RUN_TEST(!compare(val, base_18290), stack, "Large 18290 3 Test Passed", "Large 4096 3 Test Failed. Unexpected value produced '%lf'", val);
BLT_TRACE_STREAM << stack.size() << "\n";
BLT_ASSERT(stack.empty() && "Stack was not empty after evaluation.");
}
BLT_INFO("Testing large 18290 with stack over boundary");
{
blt::gp::stack_allocator stack;
stack.push(std::array<blt::u8, 20480 - 18290 - blt::gp::stack_allocator::block_size()>());
stack.push(base_18290);
stack.push(-2543.0f);
stack.push(true);
auto size = stack.size();
BLT_TRACE_STREAM << size << "\n";
BLT_ASSERT(size.blocks > 1 && "Stack doesn't have more than one block!");
large_18290_basic_3b.make_callable<blt::gp::detail::empty_t>()(nullptr, stack, stack);
BLT_TRACE_STREAM << stack.size() << "\n";
auto val = stack.pop<large_18290>();
stack.pop<std::array<blt::u8, 20480 - 18290 - blt::gp::stack_allocator::block_size()>>();
RUN_TEST(!compare(val, base_18290), stack, "Large 18290 3 Boundary Test Passed", "Large 4096 3 Test Failed. Unexpected value produced '%lf'", val);
BLT_TRACE_STREAM << stack.size() << "\n";
BLT_ASSERT(stack.empty() && "Stack was not empty after evaluation over stack boundary");
}
BLT_INFO("Testing large 18290 with stack over multiple boundaries");
{
blt::gp::stack_allocator stack;
stack.push(base_18290);
stack.push(-2543.0f);
stack.push(true);
auto size = stack.size();
BLT_TRACE_STREAM << size << "\n";
large_18290_basic_3b.make_callable<blt::gp::detail::empty_t>()(nullptr, stack, stack);
BLT_TRACE_STREAM << stack.size() << "\n";
stack.push(-2543.0f);
stack.push(true);
BLT_TRACE_STREAM << stack.size() << "\n";
large_18290_basic_3b.make_callable<blt::gp::detail::empty_t>()(nullptr, stack, stack);
BLT_TRACE_STREAM << stack.size() << "\n";
auto val = stack.pop<large_18290>();
RUN_TEST(!compare(val, base_18290), stack, "Large 18290 3 Boundary Test Passed", "Large 4096 3 Test Failed. Unexpected value produced '%lf'", val);
BLT_TRACE_STREAM << stack.size() << "\n";
BLT_ASSERT(stack.empty() && "Stack was not empty after evaluation over multiple stack boundary");
}
}
void test_operators()
{
log_box box("-----------------------{Operator Testing}-----------------------", BLT_INFO_STREAM);
test_basic();
BLT_NEWLINE();
test_mixed();
BLT_NEWLINE();
test_large_256();
BLT_NEWLINE();
test_large_4096();
BLT_NEWLINE();
test_large_18290();
}
int main()
{
test_basic_types();
BLT_NEWLINE();
test_operators();
}
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