unordered/test/exception/rehash_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/strong.hpp"
#include "../helpers/tracker.hpp"
#include <string>

test::seed_t initialize_seed(3298597);

template <class T> struct rehash_test_base : public test::exception_base
{
  test::random_values<T> values;
  unsigned int n;
  rehash_test_base(unsigned int count = 100, unsigned int n_ = 0)
      : values(count, test::limited_range), n(n_)
  {
  }

  typedef T data_type;
  typedef test::strong<T> strong_type;

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

  void check BOOST_PREVENT_MACRO_SUBSTITUTION(
    T const& x, strong_type const& strong) const
  {
    std::string scope(test::scope);

    if (scope.find("hash::operator()") == std::string::npos &&
        scope.find("equal_to::operator()") == std::string::npos &&
        scope != "operator==(object, object)")
      strong.test(x);

    test::check_equivalent_keys(x);
  }
};

template <class T> struct rehash_test0 : rehash_test_base<T>
{
  rehash_test0() : rehash_test_base<T>(0) {}
  void run(T& x) const
  {
    x.rehash(0);

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

template <class T> struct rehash_test1 : rehash_test_base<T>
{
  rehash_test1() : rehash_test_base<T>(0) {}
  void run(T& x) const
  {
    x.rehash(200);

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

template <class T> struct rehash_test2 : rehash_test_base<T>
{
  rehash_test2() : rehash_test_base<T>(0, 200) {}
  void run(T& x) const
  {
    x.rehash(0);

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

template <class T> struct rehash_test3 : rehash_test_base<T>
{
  rehash_test3() : rehash_test_base<T>(10, 0) {}
  void run(T& x) const
  {
    x.rehash(200);

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

template <class T> struct rehash_test4 : rehash_test_base<T>
{
  rehash_test4() : rehash_test_base<T>(10, 200) {}
  void run(T& x) const
  {
    x.rehash(0);

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

template <class T> struct rehash_test5 : rehash_test_base<T>
{
  rehash_test5() : rehash_test_base<T>(200, 10) {}
  void run(T& x) const
  {
    x.rehash(0);

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

// clang-format off
EXCEPTION_TESTS(
  (rehash_test0)(rehash_test1)(rehash_test2)(rehash_test3)(rehash_test4)
  (rehash_test5),
  CONTAINER_SEQ)
// clang-format on

RUN_TESTS()