1 files changed, 126 insertions, 0 deletions
diff --git a/src/boost/libs/accumulators/test/tail.cpp b/src/boost/libs/accumulators/test/tail.cpp
new file mode 100644
index 00000000..f3e248ec
--- /dev/null
+++ b/src/boost/libs/accumulators/test/tail.cpp
@@ -0,0 +1,126 @@
+//  (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/foreach.hpp>
+#include <boost/test/unit_test.hpp>
+#include <boost/accumulators/accumulators.hpp>
+#include <boost/accumulators/statistics/stats.hpp>
+#include <boost/accumulators/statistics/tail.hpp>
+#include <boost/accumulators/statistics/tail_variate.hpp>
+#include <boost/accumulators/statistics/variates/covariate.hpp>
+
+using namespace boost;
+using namespace unit_test;
+using namespace accumulators;
+
+template<typename Range>
+void check_tail(Range const &rng, char const *expected)
+{
+    BOOST_FOREACH(int i, rng)
+    {
+        if(!*expected)
+        {
+            BOOST_CHECK(false);
+            return;
+        }
+        BOOST_CHECK_EQUAL(i, *expected++);
+    }
+    BOOST_CHECK(!*expected);
+}
+
+///////////////////////////////////////////////////////////////////////////////
+// test_right_tail
+//
+void test_right_tail()
+{
+    accumulator_set<int, stats<tag::tail_weights<right>, tag::tail_variate<int, tag::covariate1, right> >, int > acc(
+        right_tail_cache_size = 4
+    );
+
+    acc(010, weight = 2, covariate1 = 3);
+    check_tail(tail(acc), "\10");
+    check_tail(tail_variate(acc), "\3");
+    check_tail(tail_weights(acc), "\2");
+
+    acc(020, weight = 7, covariate1 = 1);
+    check_tail(tail(acc), "\20\10");
+    check_tail(tail_variate(acc), "\1\3");
+    check_tail(tail_weights(acc), "\7\2");
+
+    acc(014, weight = 6, covariate1 = 4);
+    check_tail(tail(acc), "\20\14\10");
+    check_tail(tail_variate(acc), "\1\4\3");
+    check_tail(tail_weights(acc), "\7\6\2");
+
+    acc(030, weight = 4, covariate1 = 5);
+    check_tail(tail(acc), "\30\20\14\10");
+    check_tail(tail_variate(acc), "\5\1\4\3");
+    check_tail(tail_weights(acc), "\4\7\6\2");
+
+    acc(001, weight = 1, covariate1 = 9);
+    check_tail(tail(acc), "\30\20\14\10");
+    check_tail(tail_variate(acc), "\5\1\4\3");
+    check_tail(tail_weights(acc), "\4\7\6\2");
+
+    acc(011, weight = 3, covariate1 = 7);
+    check_tail(tail(acc), "\30\20\14\11");
+    check_tail(tail_variate(acc), "\5\1\4\7");
+    check_tail(tail_weights(acc), "\4\7\6\3");
+
+}
+
+///////////////////////////////////////////////////////////////////////////////
+// test_left_tail
+//
+void test_left_tail()
+{
+    accumulator_set<int, stats<tag::tail_weights<left>, tag::tail_variate<int, tag::covariate1, left> >, int > acc(
+        left_tail_cache_size = 4
+    );
+
+    acc(010, weight = 2, covariate1 = 3);
+    check_tail(tail(acc), "\10");
+    check_tail(tail_variate(acc), "\3");
+    check_tail(tail_weights(acc), "\2");
+
+    acc(020, weight = 7, covariate1 = 1);
+    check_tail(tail(acc), "\10\20");
+    check_tail(tail_variate(acc), "\3\1");
+    check_tail(tail_weights(acc), "\2\7");
+
+    acc(014, weight = 6, covariate1 = 4);
+    check_tail(tail(acc), "\10\14\20");
+    check_tail(tail_variate(acc), "\3\4\1");
+    check_tail(tail_weights(acc), "\2\6\7");
+
+    acc(030, weight = 4, covariate1 = 5);
+    check_tail(tail(acc), "\10\14\20\30");
+    check_tail(tail_variate(acc), "\3\4\1\5");
+    check_tail(tail_weights(acc), "\2\6\7\4");
+
+    acc(001, weight = 1, covariate1 = 9);
+    check_tail(tail(acc), "\1\10\14\20");
+    check_tail(tail_variate(acc), "\x9\3\4\1");
+    check_tail(tail_weights(acc), "\1\2\6\7");
+
+    acc(011, weight = 3, covariate1 = 7);
+    check_tail(tail(acc), "\1\10\11\14");
+    check_tail(tail_variate(acc), "\x9\3\7\4");
+    check_tail(tail_weights(acc), "\1\2\3\6");
+}
+
+///////////////////////////////////////////////////////////////////////////////
+// init_unit_test_suite
+//
+test_suite* init_unit_test_suite( int argc, char* argv[] )
+{
+    test_suite *test = BOOST_TEST_SUITE("tail test");
+
+    test->add(BOOST_TEST_CASE(&test_right_tail));
+    test->add(BOOST_TEST_CASE(&test_left_tail));
+
+    return test;
+}
+