Files
Grinch-AP/test/cpp/intset/test_intset.cpp
black-sliver acf85eb9ab Speedups: remove dependency on c++ (#2796)
* Speedups: remove dependency on c++

* Speedups: intset: handle malloc failing

* Speedups: intset: fix corner case for int64 on 32bit systems

original idea was to only use bucket->val if int<pointer,
but we always have a union now anyway

* Speedups: add size comment to player_set bucket configuration

* test: more tests for LocationStore.find_item

* test: require _speedups in CI

This kind of tests that the build succeeds.

* test: even more tests for LocationStore.find_item

* Speedups: intset uniform comment style

* Speedups: intset: avoid memory leak when realloc fails

* Speedups: intset: make `gcc -pedantic -std=c99 -fanalyzer` without warnings

Unnamed unions are not in C99, this got fixed.
The overhead of setting count=0 is minimal or optimized-out and silences -fanalizer (see comment).

* Speedups: don't leak memory in case of exception

* Speedups: intset: validate alloc and free

This won't happen in our cython, but it's still a good addition.

* CI: add test framework for C/C++ code

* CI: ctest: fix cwd

* Speedups: intset: ignore msvc warning

* Tests: intset: revert attempt at no-asan

We solve this with env vars in ctest now, and this fails for msvc.

* Test: cpp: docs: fix typo

* Test: cpp: docs: fix another typo

* Test: intset: proper bucket count for Negative test

INTxx_MIN % 1 would not produce a negative number, so the test was flawed.
2024-06-12 18:54:59 +02:00

106 lines
2.7 KiB
C++

#include <limits>
#include <cstdint>
#include <gtest/gtest.h>
// uint32Set
#define INTSET_NAME uint32Set
#define INTSET_TYPE uint32_t
#include "../../../intset.h"
#undef INTSET_NAME
#undef INTSET_TYPE
// int64Set
#define INTSET_NAME int64Set
#define INTSET_TYPE int64_t
#include "../../../intset.h"
TEST(IntsetTest, ZeroBuckets)
{
// trying to allocate with zero buckets has to either fail or be functioning
uint32Set *set = uint32Set_new(0);
if (!set)
return; // failed -> OK
EXPECT_FALSE(uint32Set_contains(set, 1));
EXPECT_TRUE(uint32Set_add(set, 1));
EXPECT_TRUE(uint32Set_contains(set, 1));
uint32Set_free(set);
}
TEST(IntsetTest, Duplicate)
{
// adding the same number again can't fail
uint32Set *set = uint32Set_new(2);
ASSERT_TRUE(set);
EXPECT_TRUE(uint32Set_add(set, 0));
EXPECT_TRUE(uint32Set_add(set, 0));
EXPECT_TRUE(uint32Set_contains(set, 0));
uint32Set_free(set);
}
TEST(IntsetTest, SetAllocFailure)
{
// try to allocate 100TB of RAM, should fail and return NULL
if (sizeof(size_t) < 8)
GTEST_SKIP() << "Alloc error not testable on 32bit";
int64Set *set = int64Set_new(6250000000000ULL);
EXPECT_FALSE(set);
int64Set_free(set);
}
TEST(IntsetTest, SetAllocOverflow)
{
// try to overflow argument passed to malloc
int64Set *set = int64Set_new(std::numeric_limits<size_t>::max());
EXPECT_FALSE(set);
int64Set_free(set);
}
TEST(IntsetTest, NullFree)
{
// free(NULL) should not try to free buckets
uint32Set_free(NULL);
int64Set_free(NULL);
}
TEST(IntsetTest, BucketRealloc)
{
// add a couple of values to the same bucket to test growing the bucket
uint32Set* set = uint32Set_new(1);
ASSERT_TRUE(set);
EXPECT_FALSE(uint32Set_contains(set, 0));
EXPECT_TRUE(uint32Set_add(set, 0));
EXPECT_TRUE(uint32Set_contains(set, 0));
for (uint32_t i = 1; i < 32; ++i) {
EXPECT_TRUE(uint32Set_add(set, i));
EXPECT_TRUE(uint32Set_contains(set, i - 1));
EXPECT_TRUE(uint32Set_contains(set, i));
EXPECT_FALSE(uint32Set_contains(set, i + 1));
}
uint32Set_free(set);
}
TEST(IntSet, Max)
{
constexpr auto n = std::numeric_limits<uint32_t>::max();
uint32Set *set = uint32Set_new(1);
ASSERT_TRUE(set);
EXPECT_FALSE(uint32Set_contains(set, n));
EXPECT_TRUE(uint32Set_add(set, n));
EXPECT_TRUE(uint32Set_contains(set, n));
uint32Set_free(set);
}
TEST(InsetTest, Negative)
{
constexpr auto n = std::numeric_limits<int64_t>::min();
static_assert(n < 0, "n not negative");
int64Set *set = int64Set_new(3);
ASSERT_TRUE(set);
EXPECT_FALSE(int64Set_contains(set, n));
EXPECT_TRUE(int64Set_add(set, n));
EXPECT_TRUE(int64Set_contains(set, n));
int64Set_free(set);
}