small_vector.cpp

#include <iostream>
#include <cassert>

#include "support/small_vector.h"

using namespace wasm;

template<typename T>
void test() {
  {
    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);
  }
}

int main() {
  test<SmallVector<int, 0>>();
  test<SmallVector<int, 1>>();
  test<SmallVector<int, 2>>();
  test<SmallVector<int, 10>>();
  std::cout << "ok.\n";
}