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// RUN: %clangxx_unit -O0 %s -o %t 2>&1
// RUN: %env_esan_opts="record_snapshots=0" %run %t 2>&1 | FileCheck %s
#include "esan/esan_circular_buffer.h"
#include "sanitizer_common/sanitizer_placement_new.h"
#include <assert.h>
#include <stdio.h>
static const int TestBufCapacity = 4;
// The buffer should have a capacity of TestBufCapacity.
void testBuffer(__esan::CircularBuffer<int> *Buf) {
assert(Buf->size() == 0);
assert(Buf->empty());
Buf->push_back(1);
assert(Buf->back() == 1);
assert((*Buf)[0] == 1);
assert(Buf->size() == 1);
assert(!Buf->empty());
Buf->push_back(2);
Buf->push_back(3);
Buf->push_back(4);
Buf->push_back(5);
assert((*Buf)[0] == 2);
assert(Buf->size() == 4);
Buf->pop_back();
assert((*Buf)[0] == 2);
assert(Buf->size() == 3);
Buf->pop_back();
Buf->pop_back();
assert((*Buf)[0] == 2);
assert(Buf->size() == 1);
assert(!Buf->empty());
Buf->pop_back();
assert(Buf->empty());
}
int main()
{
// Test initialize/free.
__esan::CircularBuffer<int> GlobalBuf;
GlobalBuf.initialize(TestBufCapacity);
testBuffer(&GlobalBuf);
GlobalBuf.free();
// Test constructor/free.
__esan::CircularBuffer<int> *LocalBuf;
static char placeholder[sizeof(*LocalBuf)];
LocalBuf = new(placeholder) __esan::CircularBuffer<int>(TestBufCapacity);
testBuffer(LocalBuf);
LocalBuf->free();
fprintf(stderr, "All checks passed.\n");
// CHECK: All checks passed.
return 0;
}
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