1 files changed, 96 insertions, 0 deletions
diff --git a/src/boost/libs/compute/test/test_unique.cpp b/src/boost/libs/compute/test/test_unique.cpp
new file mode 100644
index 00000000..f754323b
--- /dev/null
+++ b/src/boost/libs/compute/test/test_unique.cpp
@@ -0,0 +1,96 @@
+//---------------------------------------------------------------------------//
+// Copyright (c) 2014 Roshan <thisisroshansmail@gmail.com>
+//
+// 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
+//
+// See http://boostorg.github.com/compute for more information.
+//---------------------------------------------------------------------------//
+
+#define BOOST_TEST_MODULE TestUnique
+#include <boost/test/unit_test.hpp>
+
+#include <boost/compute/function.hpp>
+#include <boost/compute/algorithm/iota.hpp>
+#include <boost/compute/algorithm/none_of.hpp>
+#include <boost/compute/algorithm/transform.hpp>
+#include <boost/compute/algorithm/unique.hpp>
+#include <boost/compute/container/vector.hpp>
+
+#include "check_macros.hpp"
+#include "context_setup.hpp"
+
+namespace compute = boost::compute;
+
+BOOST_AUTO_TEST_CASE(unique_int)
+{
+    int data[] = {1, 6, 6, 4, 2, 2, 4};
+
+    compute::vector<int> input(data, data + 7, queue);
+
+    compute::vector<int>::iterator iter =
+        compute::unique(input.begin(), input.end(), queue);
+
+    BOOST_VERIFY(iter == input.begin() + 5);
+    CHECK_RANGE_EQUAL(int, 7, input, (1, 6, 4, 2, 4, 2, 4));
+}
+
+BOOST_AUTO_TEST_CASE(all_same_float)
+{
+    compute::vector<float> vec(1024, context);
+    compute::fill(vec.begin(), vec.end(), 3.14f, queue);
+
+    compute::vector<float>::iterator iter =
+        compute::unique(vec.begin(), vec.end(), queue);
+
+    BOOST_VERIFY(iter == vec.begin() + 1);
+
+    float first;
+    compute::copy_n(vec.begin(), 1, &first, queue);
+    BOOST_CHECK_EQUAL(first, 3.14f);
+}
+
+BOOST_AUTO_TEST_CASE(unique_even_uints)
+{
+    using compute::uint_;
+
+    // create vector filled with [0, 1, 2, ...]
+    compute::vector<uint_> vec(1024, context);
+    compute::iota(vec.begin(), vec.end(), 0, queue);
+
+    // all should be unique
+    compute::vector<uint_>::iterator iter = compute::unique(
+        vec.begin(), vec.end(), queue
+    );
+    BOOST_VERIFY(iter == vec.end());
+
+    // if odd, return the prior even number, else return the number
+    BOOST_COMPUTE_FUNCTION(uint_, odd_to_even, (uint_ x),
+    {
+        if(x & 1){
+            return x - 1;
+        }
+        else {
+            return x;
+        }
+    });
+
+    // set all odd numbers the previous even number
+    compute::transform(
+        vec.begin(), vec.end(), vec.begin(), odd_to_even, queue
+    );
+
+    // now the vector should contain [0, 0, 2, 2, 4, 4, ...]
+    iter = compute::unique(vec.begin(), vec.end(), queue);
+    BOOST_VERIFY(iter == vec.begin() + (vec.size() / 2));
+
+    // ensure all of the values are even
+    BOOST_COMPUTE_FUNCTION(bool, is_odd, (uint_ x),
+    {
+        return x & 1;
+    });
+    BOOST_VERIFY(compute::none_of(vec.begin(), vec.end(), is_odd, queue));
+}
+
+BOOST_AUTO_TEST_SUITE_END()