unordered/test/exception/assign_exception_tests.cpp

// Copyright 2006-2009 Daniel James.
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)

#include "./containers.hpp"

#include "../helpers/invariants.hpp"
#include "../helpers/random_values.hpp"
#include "../helpers/tracker.hpp"

#if defined(BOOST_MSVC)
#pragma warning(disable : 4512) // assignment operator could not be generated
#endif

test::seed_t initialize_seed(12847);

template <class T> struct self_assign_base : public test::exception_base
{
  test::random_values<T> values;
  self_assign_base(std::size_t count = 0) : values(count, test::limited_range)
  {
  }

  typedef T data_type;
  T init() const { return T(values.begin(), values.end()); }

  void run(T& x) const
  {
    x = x;

    DISABLE_EXCEPTIONS;
    test::check_container(x, values);
    test::check_equivalent_keys(x);
  }

  void check BOOST_PREVENT_MACRO_SUBSTITUTION(T const& x) const
  {
    test::check_equivalent_keys(x);
  }
};

template <class T> struct self_assign_test1 : self_assign_base<T>
{
};

template <class T> struct self_assign_test2 : self_assign_base<T>
{
  self_assign_test2() : self_assign_base<T>(100) {}
};

template <class T> struct assign_base : public test::exception_base
{
  test::random_values<T> x_values, y_values;
  T x, y;

  typedef typename T::hasher hasher;
  typedef typename T::key_equal key_equal;
  typedef typename T::allocator_type allocator_type;

  assign_base(int tag1, int tag2, float mlf1 = 1.0, float mlf2 = 1.0)
      : x_values(), y_values(),
        x(0, hasher(tag1), key_equal(tag1), allocator_type(tag1)),
        y(0, hasher(tag2), key_equal(tag2), allocator_type(tag2))
  {
    x.max_load_factor(mlf1);
    y.max_load_factor(mlf2);
  }

  typedef T data_type;
  T init() const { return T(x); }

  void run(T& x1) const
  {
    x1 = y;

    DISABLE_EXCEPTIONS;
    test::check_container(x1, y_values);
    test::check_equivalent_keys(x1);
  }

  void check BOOST_PREVENT_MACRO_SUBSTITUTION(T const& x1) const
  {
    test::check_equivalent_keys(x1);

    // If the container is empty at the point of the exception, the
    // internal structure is hidden, this exposes it, at the cost of
    // messing up the data.
    if (x_values.size()) {
      T& x2 = const_cast<T&>(x1);
      x2.emplace(*x_values.begin());
      test::check_equivalent_keys(x2);
    }
  }
};

template <class T> struct assign_values : assign_base<T>
{
  assign_values(unsigned int count1, unsigned int count2, int tag1, int tag2,
    test::random_generator gen = test::default_generator, float mlf1 = 1.0,
    float mlf2 = 1.0)
      : assign_base<T>(tag1, tag2, mlf1, mlf2)
  {
    this->x_values.fill(count1, gen);
    this->y_values.fill(count2, gen);
    this->x.insert(this->x_values.begin(), this->x_values.end());
    this->y.insert(this->y_values.begin(), this->y_values.end());
  }
};

template <class T> struct assign_test1 : assign_values<T>
{
  assign_test1() : assign_values<T>(0, 0, 0, 0) {}
};

template <class T> struct assign_test2 : assign_values<T>
{
  assign_test2() : assign_values<T>(60, 0, 0, 0) {}
};

template <class T> struct assign_test2a : assign_values<T>
{
  assign_test2a() : assign_values<T>(60, 0, 0, 0, test::limited_range) {}
};

template <class T> struct assign_test3 : assign_values<T>
{
  assign_test3() : assign_values<T>(0, 60, 0, 0) {}
};

template <class T> struct assign_test3a : assign_values<T>
{
  assign_test3a() : assign_values<T>(0, 60, 0, 0, test::limited_range) {}
};

template <class T> struct assign_test4 : assign_values<T>
{
  assign_test4() : assign_values<T>(10, 10, 1, 2) {}
};

template <class T> struct assign_test4a : assign_values<T>
{
  assign_test4a() : assign_values<T>(10, 100, 1, 2) {}
};

template <class T> struct assign_test4b : assign_values<T>
{
  assign_test4b() : assign_values<T>(10, 100, 1, 2, test::limited_range) {}
};

template <class T> struct assign_test5 : assign_values<T>
{
  assign_test5()
      : assign_values<T>(5, 60, 0, 0, test::default_generator, 1.0f, 0.1f)
  {
  }
};

template <class T> struct equivalent_test1 : assign_base<T>
{
  equivalent_test1() : assign_base<T>(0, 0)
  {
    test::random_values<T> x_values2(10);
    this->x_values.insert(x_values2.begin(), x_values2.end());
    this->x_values.insert(x_values2.begin(), x_values2.end());
    test::random_values<T> y_values2(10);
    this->y_values.insert(y_values2.begin(), y_values2.end());
    this->y_values.insert(y_values2.begin(), y_values2.end());
    this->x.insert(this->x_values.begin(), this->x_values.end());
    this->y.insert(this->y_values.begin(), this->y_values.end());
  }
};

// clang-format off
EXCEPTION_TESTS_REPEAT(5,
    (self_assign_test1)(self_assign_test2)
    (assign_test1)(assign_test2)(assign_test2a)
    (assign_test3)(assign_test3a)
    (assign_test4)(assign_test4a)(assign_test4b)
    (assign_test5)
    (equivalent_test1),
    CONTAINER_SEQ)
// clang-format on

RUN_TESTS()