+// Copyright Kevlin Henney, 2000, 2001. All rights reserved.
+// Copyright Antony Polukhin, 2013-2022.
+//
+// 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)
+
// what: unit tests for variant type boost::any
// who: contributed by Kevlin Henney
// when: July 2001, 2013, 2014
// where: tested with BCC 5.5, MSVC 6.0, and g++ 2.95
-#include <cstdlib>
-#include <string>
-#include <vector>
-#include <utility>
-
#include <boost/any.hpp>
-#include "test.hpp"
-namespace any_tests
-{
- typedef test<const char *, void (*)()> test_case;
- typedef const test_case * test_case_iterator;
-
- extern const test_case_iterator begin, end;
-}
+#include "basic_test.hpp"
-int main()
+static const std::string& returning_string1()
{
- using namespace any_tests;
- tester<test_case_iterator> test_suite(begin, end);
- return test_suite() ? EXIT_SUCCESS : EXIT_FAILURE;
+ static const std::string ret("foo");
+ return ret;
}
-namespace any_tests // test suite
+static std::string returning_string2()
{
- void test_default_ctor();
- void test_converting_ctor();
- void test_copy_ctor();
- void test_copy_assign();
- void test_converting_assign();
- void test_bad_cast();
- void test_swap();
- void test_null_copying();
- void test_cast_to_reference();
- void test_with_array();
- void test_with_func();
- void test_clear();
- void test_vectors();
- void test_addressof();
-
- const test_case test_cases[] =
- {
- { "default construction", test_default_ctor },
- { "single argument construction", test_converting_ctor },
- { "copy construction", test_copy_ctor },
- { "copy assignment operator", test_copy_assign },
- { "converting assignment operator", test_converting_assign },
- { "failed custom keyword cast", test_bad_cast },
- { "swap member function", test_swap },
- { "copying operations on a null", test_null_copying },
- { "cast to reference types", test_cast_to_reference },
- { "storing an array inside", test_with_array },
- { "implicit cast of returned value",test_with_func },
- { "clear() methods", test_clear },
- { "testing with vectors", test_vectors },
- { "class with operator&()", test_addressof }
- };
-
- const test_case_iterator begin = test_cases;
- const test_case_iterator end =
- test_cases + (sizeof test_cases / sizeof *test_cases);
-
-
-
- struct copy_counter
- {
-
- public:
-
- copy_counter() {}
- copy_counter(const copy_counter&) { ++count; }
- copy_counter& operator=(const copy_counter&) { ++count; return *this; }
- static int get_count() { return count; }
-
- private:
-
- static int count;
-
- };
-
- int copy_counter::count = 0;
+ static const std::string ret("foo");
+ return ret;
}
-namespace any_tests // test definitions
+static void test_with_func()
{
- using namespace boost;
-
- void test_default_ctor()
- {
- const any value;
-
- check_true(value.empty(), "empty");
- check_null(any_cast<int>(&value), "any_cast<int>");
- check_equal(value.type(), boost::typeindex::type_id<void>(), "type");
- }
-
- void test_converting_ctor()
- {
- std::string text = "test message";
- any value = text;
-
- check_false(value.empty(), "empty");
- check_equal(value.type(), boost::typeindex::type_id<std::string>(), "type");
- check_null(any_cast<int>(&value), "any_cast<int>");
- check_non_null(any_cast<std::string>(&value), "any_cast<std::string>");
- check_equal(
- any_cast<std::string>(value), text,
- "comparing cast copy against original text");
- check_unequal(
- any_cast<std::string>(&value), &text,
- "comparing address in copy against original text");
- }
-
- void test_copy_ctor()
- {
- std::string text = "test message";
- any original = text, copy = original;
-
- check_false(copy.empty(), "empty");
- check_equal(boost::typeindex::type_index(original.type()), copy.type(), "type");
- check_equal(
- any_cast<std::string>(original), any_cast<std::string>(copy),
- "comparing cast copy against original");
- check_equal(
- text, any_cast<std::string>(copy),
- "comparing cast copy against original text");
- check_unequal(
- any_cast<std::string>(&original),
- any_cast<std::string>(©),
- "comparing address in copy against original");
- }
-
- void test_copy_assign()
- {
- std::string text = "test message";
- any original = text, copy;
- any * assign_result = &(copy = original);
-
- check_false(copy.empty(), "empty");
- check_equal(boost::typeindex::type_index(original.type()), copy.type(), "type");
- check_equal(
- any_cast<std::string>(original), any_cast<std::string>(copy),
- "comparing cast copy against cast original");
- check_equal(
- text, any_cast<std::string>(copy),
- "comparing cast copy against original text");
- check_unequal(
- any_cast<std::string>(&original),
- any_cast<std::string>(©),
- "comparing address in copy against original");
- check_equal(assign_result, ©, "address of assignment result");
- }
-
- void test_converting_assign()
- {
- std::string text = "test message";
- any value;
- any * assign_result = &(value = text);
-
- check_false(value.empty(), "type");
- check_equal(value.type(), boost::typeindex::type_id<std::string>(), "type");
- check_null(any_cast<int>(&value), "any_cast<int>");
- check_non_null(any_cast<std::string>(&value), "any_cast<std::string>");
- check_equal(
- any_cast<std::string>(value), text,
- "comparing cast copy against original text");
- check_unequal(
- any_cast<std::string>(&value),
- &text,
- "comparing address in copy against original text");
- check_equal(assign_result, &value, "address of assignment result");
- }
-
- void test_bad_cast()
- {
- std::string text = "test message";
- any value = text;
-
- TEST_CHECK_THROW(
- any_cast<const char *>(value),
- bad_any_cast,
- "any_cast to incorrect type");
- }
-
- void test_swap()
- {
- std::string text = "test message";
- any original = text, swapped;
- std::string * original_ptr = any_cast<std::string>(&original);
- any * swap_result = &original.swap(swapped);
-
- check_true(original.empty(), "empty on original");
- check_false(swapped.empty(), "empty on swapped");
- check_equal(swapped.type(), boost::typeindex::type_id<std::string>(), "type");
- check_equal(
- text, any_cast<std::string>(swapped),
- "comparing swapped copy against original text");
- check_non_null(original_ptr, "address in pre-swapped original");
- check_equal(
- original_ptr,
- any_cast<std::string>(&swapped),
- "comparing address in swapped against original");
- check_equal(swap_result, &original, "address of swap result");
-
- any copy1 = copy_counter();
- any copy2 = copy_counter();
- int count = copy_counter::get_count();
- swap(copy1, copy2);
- check_equal(count, copy_counter::get_count(), "checking that free swap doesn't make any copies.");
- }
-
- void test_null_copying()
- {
- const any null;
- any copied = null, assigned;
- assigned = null;
-
- check_true(null.empty(), "empty on null");
- check_true(copied.empty(), "empty on copied");
- check_true(assigned.empty(), "empty on copied");
- }
+ std::string s;
+ s = boost::any_cast<std::string>(returning_string1());
+ s = boost::any_cast<const std::string&>(returning_string1());
- void test_cast_to_reference()
- {
- any a(137);
- const any b(a);
+ s = boost::any_cast<std::string>(returning_string2());
+ s = boost::any_cast<const std::string&>(returning_string2());
- int & ra = any_cast<int &>(a);
- int const & ra_c = any_cast<int const &>(a);
- int volatile & ra_v = any_cast<int volatile &>(a);
- int const volatile & ra_cv = any_cast<int const volatile&>(a);
-
- check_true(
- &ra == &ra_c && &ra == &ra_v && &ra == &ra_cv,
- "cv references to same obj");
-
- int const & rb_c = any_cast<int const &>(b);
- int const volatile & rb_cv = any_cast<int const volatile &>(b);
-
- check_true(&rb_c == &rb_cv, "cv references to copied const obj");
- check_true(&ra != &rb_c, "copies hold different objects");
-
- ++ra;
- int incremented = any_cast<int>(a);
- check_true(incremented == 138, "increment by reference changes value");
-
- TEST_CHECK_THROW(
- any_cast<char &>(a),
- bad_any_cast,
- "any_cast to incorrect reference type");
-
- TEST_CHECK_THROW(
- any_cast<const char &>(b),
- bad_any_cast,
- "any_cast to incorrect const reference type");
- }
-
- void test_with_array()
- {
- any value1("Char array");
- any value2;
- value2 = "Char array";
-
- check_false(value1.empty(), "type");
- check_false(value2.empty(), "type");
-
- check_equal(value1.type(), boost::typeindex::type_id<const char*>(), "type");
- check_equal(value2.type(), boost::typeindex::type_id<const char*>(), "type");
-
- check_non_null(any_cast<const char*>(&value1), "any_cast<const char*>");
- check_non_null(any_cast<const char*>(&value2), "any_cast<const char*>");
- }
-
- const std::string& returning_string1()
- {
- static const std::string ret("foo");
- return ret;
- }
-
- std::string returning_string2()
- {
- static const std::string ret("foo");
- return ret;
- }
-
- void test_with_func()
- {
- std::string s;
- s = any_cast<std::string>(returning_string1());
- s = any_cast<const std::string&>(returning_string1());
-
- s = any_cast<std::string>(returning_string2());
- s = any_cast<const std::string&>(returning_string2());
-
-#if !defined(BOOST_NO_CXX11_RVALUE_REFERENCES)
+#if !defined(BOOST_NO_CXX11_RVALUE_REFERENCES)
#if !defined(__INTEL_COMPILER) && !defined(__ICL) && (!defined(_MSC_VER) || _MSC_VER != 1600)
- // Intel compiler thinks that it must choose the `any_cast(const any&)` function
- // instead of the `any_cast(const any&&)`.
- // Bug was not reported because of missing premier support account + annoying
- // registrations requirements.
-
- // MSVC-10 had a bug:
- //
- // any.hpp(291) : error C2440: 'return' : cannot convert.
- // Conversion loses qualifiers
- // any_test.cpp(304) : see reference to function template instantiation
- //
- // This issue was fixed in MSVC-11.
-
- s = any_cast<std::string&&>(returning_string1());
+ // Intel compiler thinks that it must choose the `any_cast(const any&)` function
+ // instead of the `any_cast(const any&&)`.
+ // Bug was not reported because of missing premier support account + annoying
+ // registrations requirements.
+
+ // MSVC-10 had a bug:
+ //
+ // any.hpp(291) : error C2440: 'return' : cannot convert.
+ // Conversion loses qualifiers
+ // any_test.cpp(304) : see reference to function template instantiation
+ //
+ // This issue was fixed in MSVC-11.
+
+ s = boost::any_cast<std::string&&>(returning_string1());
#endif
- s = any_cast<std::string&&>(returning_string2());
+ s = boost::any_cast<std::string&&>(returning_string2());
#endif
- }
-
-
- void test_clear()
- {
- std::string text = "test message";
- any value = text;
-
- check_false(value.empty(), "empty");
-
- value.clear();
- check_true(value.empty(), "non-empty after clear");
-
- value.clear();
- check_true(value.empty(), "non-empty after second clear");
-
- value = text;
- check_false(value.empty(), "empty");
-
- value.clear();
- check_true(value.empty(), "non-empty after clear");
- }
-
- // Following tests cover the case from #9462
- // https://svn.boost.org/trac/boost/ticket/9462
- boost::any makeVec()
- {
- return std::vector<int>(100 /*size*/, 7 /*value*/);
- }
-
- void test_vectors()
- {
- const std::vector<int>& vec = boost::any_cast<std::vector<int> >(makeVec());
- check_equal(vec.size(), 100u, "size of vector extracted from boost::any");
- check_equal(vec.back(), 7, "back value of vector extracted from boost::any");
- check_equal(vec.front(), 7, "front value of vector extracted from boost::any");
-
- std::vector<int> vec1 = boost::any_cast<std::vector<int> >(makeVec());
- check_equal(vec1.size(), 100u, "size of second vector extracted from boost::any");
- check_equal(vec1.back(), 7, "back value of second vector extracted from boost::any");
- check_equal(vec1.front(), 7, "front value of second vector extracted from boost::any");
-
- }
-
- template<typename T>
- class class_with_address_op {
- public:
- class_with_address_op(const T* p)
- : ptr(p)
- {}
-
- const T** operator &() {
- return &ptr;
- }
-
- const T* get() const {
- return ptr;
- }
-
- private:
- const T* ptr;
- };
-
- void test_addressof()
- {
- int val = 10;
- const int* ptr = &val;
- class_with_address_op<int> obj(ptr);
- boost::any test_val(obj);
-
- class_with_address_op<int> returned_obj = boost::any_cast<class_with_address_op<int> >(test_val);
- check_equal(&val, returned_obj.get(), "any_cast incorrectly works with type that has operator&(): addresses differ");
+}
- check_true(!!boost::any_cast<class_with_address_op<int> >(&test_val), "any_cast incorrectly works with type that has operator&()");
- check_equal(boost::unsafe_any_cast<class_with_address_op<int> >(&test_val)->get(), ptr, "unsafe_any_cast incorrectly works with type that has operator&()");
- }
+int main() {
+ test_with_func();
+ return any_tests::basic_tests<boost::any>::run_tests();
}
-// Copyright Kevlin Henney, 2000, 2001. All rights reserved.
-// Copyright Antony Polukhin, 2013-2019.
-//
-// 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)
-//
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