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#include <cassert>
#include <iostream>
#include "support/small_vector.h"
using namespace wasm;
template<typename T> void test(size_t N) {
{
T t;
// build up
assert(t.empty());
assert(t.size() == 0);
t.push_back(1);
assert(!t.empty());
assert(t.size() == 1);
t.push_back(2);
assert(!t.empty());
assert(t.size() == 2);
t.push_back(3);
assert(!t.empty());
// unwind
assert(t.size() == 3);
assert(t.back() == 3);
t.pop_back();
assert(t.size() == 2);
assert(t.back() == 2);
t.pop_back();
assert(t.size() == 1);
assert(t.back() == 1);
t.pop_back();
assert(t.size() == 0);
assert(t.empty());
}
{
T t;
// build up
t.push_back(1);
t.push_back(2);
t.push_back(3);
// unwind
t.clear();
assert(t.size() == 0);
assert(t.empty());
}
{
T t, u;
assert(t == u);
t.push_back(1);
assert(t != u);
u.push_back(1);
assert(t == u);
u.pop_back();
assert(t != u);
u.push_back(2);
assert(t != u);
}
{
// Test reserve/capacity.
T t;
// Capacity begins at the size of the fixed storage.
assert(t.capacity() == N);
// Reserving more increases the capacity (but how much is impl-defined).
t.reserve(t.capacity() + 100);
assert(t.capacity() >= N + 100);
}
{
// Test resizing.
T t;
assert(t.empty());
t.resize(1);
assert(t.size() == 1);
t.resize(2);
assert(t.size() == 2);
t.resize(3);
assert(t.size() == 3);
t.resize(6);
assert(t.size() == 6);
// Now go in reverse.
t.resize(6);
assert(t.size() == 6);
t.resize(3);
assert(t.size() == 3);
t.resize(2);
assert(t.size() == 2);
t.resize(1);
assert(t.size() == 1);
// Test a big leap from nothing (rather than gradual increase as before).
t.clear();
assert(t.empty());
t.resize(6);
assert(t.size() == 6);
t.resize(2);
assert(t.size() == 2);
t.clear();
assert(t.empty());
}
}
int main() {
test<SmallVector<int, 0>>(0);
test<SmallVector<int, 1>>(1);
test<SmallVector<int, 2>>(2);
test<SmallVector<int, 3>>(3);
test<SmallVector<int, 10>>(10);
std::cout << "ok.\n";
}
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