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Changed the Integer-mask test to use the unit-test system

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[SVN r47841]
This commit is contained in:
Daryle Walker
2008-07-27 16:34:38 +00:00
parent 2ae867bcf8
commit 188cef05a9
2 changed files with 51 additions and 90 deletions
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2
test/Jamfile.v2
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@ -11,7 +11,7 @@ test-suite integer
[ run integer_traits_test.cpp
/boost/test//boost_test_exec_monitor/<link>static ]
[ run integer_mask_test.cpp
/boost/test//boost_test_exec_monitor/<link>static ]
/boost/test//boost_unit_test_framework ]
[ run static_log2_test.cpp
/boost/test//boost_test_exec_monitor/<link>static ]
[ run static_min_max_test.cpp

139
test/integer_mask_test.cpp
View File

@ -8,104 +8,65 @@
// See http://www.boost.org for most recent version including documentation.
// Revision History
// 27 Jul 2008 Changed tests to use the unit-test system (Daryle Walker)
// 23 Sep 2001 Initial version (Daryle Walker)
#define BOOST_INCLUDE_MAIN
#include <boost/test/test_tools.hpp> // for main
#define BOOST_TEST_MODULE "Integer mask tests"
#include <boost/test/unit_test.hpp> // unit testing framework
#include <boost/cstdlib.hpp> // for boost::exit_success
#include <boost/cstdint.hpp> // for boost::uintmax_t
#include <boost/integer/integer_mask.hpp> // for boost::high_bit_mask_t, etc.
#include <boost/mpl/assert.hpp> // for BOOST_MPL_ASSERT_RELATION
#include <boost/mpl/range_c.hpp> // for boost::mpl::range_c
#include <iostream> // for std::cout (std::endl indirectly)
#include <cstddef> // for std::size_t
#define PRIVATE_HIGH_BIT_SLOW_TEST(v) BOOST_CHECK( ::boost::high_bit_mask_t< \
(v) >::high_bit == (1ul << (v)) );
#define PRIVATE_HIGH_BIT_FAST_TEST(v) BOOST_CHECK( ::boost::high_bit_mask_t< \
(v) >::high_bit_fast == (1ul << (v)) );
#define PRIVATE_HIGH_BIT_TEST(v) do { PRIVATE_HIGH_BIT_SLOW_TEST(v); \
PRIVATE_HIGH_BIT_FAST_TEST(v); } while (false)
#define PRIVATE_LOW_BITS_SLOW_TEST(v) BOOST_CHECK( ::boost::low_bits_mask_t< \
(v) >::sig_bits == ((1ul << (v)) - 1) );
#define PRIVATE_LOW_BITS_FAST_TEST(v) BOOST_CHECK( ::boost::low_bits_mask_t< \
(v) >::sig_bits_fast == ((1ul << (v)) - 1) );
#define PRIVATE_LOW_BITS_TEST(v) do { PRIVATE_LOW_BITS_SLOW_TEST(v); \
PRIVATE_LOW_BITS_FAST_TEST(v); } while (false)
int test_main( int, char*[] )
// Custom types/templates, helper functions, and objects
namespace
{
using std::cout;
using std::endl;
cout << "Doing high_bit_mask_t tests." << endl;
PRIVATE_HIGH_BIT_TEST( 31 );
PRIVATE_HIGH_BIT_TEST( 30 );
PRIVATE_HIGH_BIT_TEST( 29 );
PRIVATE_HIGH_BIT_TEST( 28 );
PRIVATE_HIGH_BIT_TEST( 27 );
PRIVATE_HIGH_BIT_TEST( 26 );
PRIVATE_HIGH_BIT_TEST( 25 );
PRIVATE_HIGH_BIT_TEST( 24 );
PRIVATE_HIGH_BIT_TEST( 23 );
PRIVATE_HIGH_BIT_TEST( 22 );
PRIVATE_HIGH_BIT_TEST( 21 );
PRIVATE_HIGH_BIT_TEST( 20 );
PRIVATE_HIGH_BIT_TEST( 19 );
PRIVATE_HIGH_BIT_TEST( 18 );
PRIVATE_HIGH_BIT_TEST( 17 );
PRIVATE_HIGH_BIT_TEST( 16 );
PRIVATE_HIGH_BIT_TEST( 15 );
PRIVATE_HIGH_BIT_TEST( 14 );
PRIVATE_HIGH_BIT_TEST( 13 );
PRIVATE_HIGH_BIT_TEST( 12 );
PRIVATE_HIGH_BIT_TEST( 11 );
PRIVATE_HIGH_BIT_TEST( 10 );
PRIVATE_HIGH_BIT_TEST( 9 );
PRIVATE_HIGH_BIT_TEST( 8 );
PRIVATE_HIGH_BIT_TEST( 7 );
PRIVATE_HIGH_BIT_TEST( 6 );
PRIVATE_HIGH_BIT_TEST( 5 );
PRIVATE_HIGH_BIT_TEST( 4 );
PRIVATE_HIGH_BIT_TEST( 3 );
PRIVATE_HIGH_BIT_TEST( 2 );
PRIVATE_HIGH_BIT_TEST( 1 );
PRIVATE_HIGH_BIT_TEST( 0 );
// A big one
boost::uintmax_t const one = 1u;
cout << "Doing low_bits_mask_t tests." << endl;
PRIVATE_LOW_BITS_TEST( 32 ); // Undefined behavior? Whoops!
PRIVATE_LOW_BITS_TEST( 31 );
PRIVATE_LOW_BITS_TEST( 30 );
PRIVATE_LOW_BITS_TEST( 29 );
PRIVATE_LOW_BITS_TEST( 28 );
PRIVATE_LOW_BITS_TEST( 27 );
PRIVATE_LOW_BITS_TEST( 26 );
PRIVATE_LOW_BITS_TEST( 25 );
PRIVATE_LOW_BITS_TEST( 24 );
PRIVATE_LOW_BITS_TEST( 23 );
PRIVATE_LOW_BITS_TEST( 22 );
PRIVATE_LOW_BITS_TEST( 21 );
PRIVATE_LOW_BITS_TEST( 20 );
PRIVATE_LOW_BITS_TEST( 19 );
PRIVATE_LOW_BITS_TEST( 18 );
PRIVATE_LOW_BITS_TEST( 17 );
PRIVATE_LOW_BITS_TEST( 16 );
PRIVATE_LOW_BITS_TEST( 15 );
PRIVATE_LOW_BITS_TEST( 14 );
PRIVATE_LOW_BITS_TEST( 13 );
PRIVATE_LOW_BITS_TEST( 12 );
PRIVATE_LOW_BITS_TEST( 11 );
PRIVATE_LOW_BITS_TEST( 10 );
PRIVATE_LOW_BITS_TEST( 9 );
PRIVATE_LOW_BITS_TEST( 8 );
PRIVATE_LOW_BITS_TEST( 7 );
PRIVATE_LOW_BITS_TEST( 6 );
PRIVATE_LOW_BITS_TEST( 5 );
PRIVATE_LOW_BITS_TEST( 4 );
PRIVATE_LOW_BITS_TEST( 3 );
PRIVATE_LOW_BITS_TEST( 2 );
PRIVATE_LOW_BITS_TEST( 1 );
// List the ranges of template parameters tests (ranges are half-open)
typedef boost::mpl::range_c<std::size_t, 0u, 32u> high_bit_offsets;
typedef boost::mpl::range_c<std::size_t, 1u, 33u> low_bit_lengths;
return boost::exit_success;
} // unnamed namespace
// Check the various integer-valued bit-masks
BOOST_AUTO_TEST_SUITE( integer_mask_tests )
// Check the bit-masks of one offset bit
BOOST_AUTO_TEST_CASE_TEMPLATE( high_bit_mask_test, T, high_bit_offsets )
{
BOOST_MPL_ASSERT_RELATION( boost::high_bit_mask_t<T::value>::high_bit, ==,
(one << T::value) );
BOOST_MPL_ASSERT_RELATION( boost::high_bit_mask_t<T::value>::high_bit_fast,
==, (one << T::value) );
}
// Check the bit-masks of a block of low-valued bits
BOOST_AUTO_TEST_CASE_TEMPLATE( low_bits_mask_test, T, low_bit_lengths )
{
// One can express (2^x - 1) in two ways
// 1. (1 << x) - 1
// 2. (1 << (x-1)) | ((1 << (x-1)) - 1)
// Since unsigneds have modulo arithmetic, [1] gives the right answer even
// when x is the number of bits in the register. However, that last case
// gives warnings about the sole bit flowing past the register. Applying
// distributive property backwards gives [2], which works without overflow.
BOOST_MPL_ASSERT_RELATION( boost::low_bits_mask_t<T::value>::sig_bits, ==,
(one << ( T::value - 1u )) | (( one << (T::value - 1u) ) - 1u) );
BOOST_MPL_ASSERT_RELATION( boost::low_bits_mask_t<T::value>::sig_bits_fast,
==, (one << ( T::value - 1u )) | (( one << (T::value - 1u) ) - 1u) );
}
BOOST_AUTO_TEST_SUITE_END()
// Verification of bugs and their fixes
BOOST_AUTO_TEST_SUITE( bug_fix_tests )
BOOST_AUTO_TEST_SUITE_END()