1 files changed, 142 insertions, 0 deletions
diff --git a/src/boost/libs/accumulators/test/droppable.cpp b/src/boost/libs/accumulators/test/droppable.cpp
new file mode 100644
index 00000000..1ab1f140
--- /dev/null
+++ b/src/boost/libs/accumulators/test/droppable.cpp
@@ -0,0 +1,142 @@
+//  (C) Copyright Eric Niebler 2005.
+//  Use, modification and distribution are subject to 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 <boost/test/unit_test.hpp>
+#include <boost/test/floating_point_comparison.hpp>
+#include <boost/accumulators/accumulators.hpp>
+#include <boost/accumulators/statistics/stats.hpp>
+#include <boost/accumulators/statistics/mean.hpp>
+
+using namespace boost;
+using namespace unit_test;
+using namespace accumulators;
+
+template<typename T>
+void assert_is_double(T const &)
+{
+    BOOST_MPL_ASSERT((is_same<T, double>));
+}
+
+///////////////////////////////////////////////////////////////////////////////
+// test_stat
+//
+void test_stat()
+{
+    accumulator_set<int, stats<droppable<tag::mean> > > acc, test_acc(sample = 0);
+
+    acc(1);
+    BOOST_CHECK_CLOSE(1., mean(acc), 1e-5);
+    BOOST_CHECK_EQUAL(1u, count(acc));
+    BOOST_CHECK_EQUAL(1, sum(acc));
+
+    acc(0);
+    BOOST_CHECK_CLOSE(0.5, mean(acc), 1e-5);
+    BOOST_CHECK_EQUAL(2u, count(acc));
+    BOOST_CHECK_EQUAL(1, sum(acc));
+
+    acc.drop<tag::mean>();
+
+    acc(2);
+    BOOST_CHECK_CLOSE(0.5, mean(acc), 1e-5);
+    BOOST_CHECK_EQUAL(2u, count(acc));
+    BOOST_CHECK_EQUAL(1, sum(acc));
+
+    assert_is_double(mean(acc));
+
+
+    accumulator_set<int, stats<droppable<tag::mean(immediate)> > > acc2, test_acc2(sample = 0);
+
+    acc2(1);
+    BOOST_CHECK_CLOSE(1., mean(acc2), 1e-5);
+    BOOST_CHECK_EQUAL(1u, count(acc2));
+
+    acc2(0);
+    BOOST_CHECK_CLOSE(0.5, mean(acc2), 1e-5);
+    BOOST_CHECK_EQUAL(2u, count(acc2));
+
+    acc2.drop<tag::mean>();
+
+    acc2(2);
+    BOOST_CHECK_CLOSE(0.5, mean(acc2), 1e-5);
+    BOOST_CHECK_EQUAL(2u, count(acc2));
+
+    assert_is_double(mean(acc2));
+}
+
+///////////////////////////////////////////////////////////////////////////////
+// test_stat2
+//
+void test_stat2()
+{
+    accumulator_set<int, stats<droppable<tag::sum>, droppable<tag::mean> > > acc, test_acc(sample = 0);
+
+    acc(1);
+    BOOST_CHECK_CLOSE(1., mean(acc), 1e-5);
+    BOOST_CHECK_EQUAL(1u, count(acc));
+    BOOST_CHECK_EQUAL(1, sum(acc));
+
+    acc(0);
+    BOOST_CHECK_CLOSE(0.5, mean(acc), 1e-5);
+    BOOST_CHECK_EQUAL(2u, count(acc));
+    BOOST_CHECK_EQUAL(1, sum(acc));
+
+    acc.drop<tag::mean>();
+    acc.drop<tag::sum>();
+
+    acc(2);
+    BOOST_CHECK_CLOSE(0.5, mean(acc), 1e-5);
+    BOOST_CHECK_EQUAL(2u, count(acc));
+    BOOST_CHECK_EQUAL(1, sum(acc));
+
+    assert_is_double(mean(acc));
+}
+
+///////////////////////////////////////////////////////////////////////////////
+// test_stat3
+//
+void test_stat3()
+{
+    accumulator_set<int, stats<droppable<tag::sum>, droppable<tag::count>, droppable<tag::mean> > > acc, test_acc(sample = 0);
+
+    acc(1);
+    BOOST_CHECK_CLOSE(1., mean(acc), 1e-5);
+    BOOST_CHECK_EQUAL(1u, count(acc));
+    BOOST_CHECK_EQUAL(1, sum(acc));
+
+    acc(0);
+    BOOST_CHECK_CLOSE(0.5, mean(acc), 1e-5);
+    BOOST_CHECK_EQUAL(2u, count(acc));
+    BOOST_CHECK_EQUAL(1, sum(acc));
+
+    acc.drop<tag::mean>();
+    acc.drop<tag::sum>();
+
+    acc(2);
+    BOOST_CHECK_CLOSE(1./3., mean(acc), 1e-5);
+    BOOST_CHECK_EQUAL(3u, count(acc));
+    BOOST_CHECK_EQUAL(1, sum(acc));
+
+    acc.drop<tag::count>();
+    acc(3);
+    BOOST_CHECK_CLOSE(1./3., mean(acc), 1e-5);
+    BOOST_CHECK_EQUAL(3u, count(acc));
+    BOOST_CHECK_EQUAL(1, sum(acc));
+
+    assert_is_double(mean(acc));
+}
+
+///////////////////////////////////////////////////////////////////////////////
+// init_unit_test_suite
+//
+test_suite* init_unit_test_suite( int argc, char* argv[] )
+{
+    test_suite *test = BOOST_TEST_SUITE("droppable test");
+
+    test->add(BOOST_TEST_CASE(&test_stat));
+    test->add(BOOST_TEST_CASE(&test_stat2));
+    test->add(BOOST_TEST_CASE(&test_stat3));
+
+    return test;
+}