1 files changed, 99 insertions, 0 deletions
diff --git a/src/boost/libs/compute/test/test_program_cache.cpp b/src/boost/libs/compute/test/test_program_cache.cpp
new file mode 100644
index 00000000..446e9a87
--- /dev/null
+++ b/src/boost/libs/compute/test/test_program_cache.cpp
@@ -0,0 +1,99 @@
+//---------------------------------------------------------------------------//
+// Copyright (c) 2013-2014 Kyle Lutz <kyle.r.lutz@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 TestProgramCache
+#include <boost/test/unit_test.hpp>
+
+#include <boost/compute/system.hpp>
+#include <boost/compute/utility/program_cache.hpp>
+
+#include "context_setup.hpp"
+
+namespace compute = boost::compute;
+
+BOOST_AUTO_TEST_CASE(setup)
+{
+    // get default context
+    compute::context ctx = context;
+
+    // get program cache
+    boost::shared_ptr<compute::program_cache> cache =
+        compute::program_cache::get_global_cache(ctx);
+
+    // try to load a null string
+    BOOST_CHECK(cache->get(std::string()) == boost::none);
+
+    // try to load a non-existant program
+    BOOST_CHECK(cache->get("nonexistant") == boost::none);
+
+    // create and store a program
+    const char p1_source[] =
+        "__kernel void add(__global int *a, int x)\n"
+        "{\n"
+        "    a[get_global_id(0)] += x;\n"
+        "}\n";
+    compute::program p1 =
+        compute::program::create_with_source(p1_source, ctx);
+    p1.build();
+    cache->insert("p1", p1);
+
+    // try to load the program
+    BOOST_CHECK(cache->get("p1") == p1);
+
+    // create a copy of the context
+    compute::context ctx_copy = ctx;
+
+    // check that they both have the same cl_context
+    BOOST_CHECK(ctx_copy.get() == ctx.get());
+
+    // check that the cache is the same
+    boost::shared_ptr<compute::program_cache> cache_copy =
+        compute::program_cache::get_global_cache(ctx_copy);
+    BOOST_CHECK(cache_copy == cache);
+
+    // try to load the program again
+    BOOST_CHECK(cache_copy->get("p1") == p1);
+}
+
+BOOST_AUTO_TEST_CASE(evict)
+{
+    // create cache with capacity of four and insert four programs
+    compute::program_cache cache(4);
+    cache.insert("a", compute::program());
+    cache.insert("b", compute::program());
+    cache.insert("c", compute::program());
+    cache.insert("d", compute::program());
+
+    // check that all four programs still reside in the cache
+    BOOST_CHECK(cache.get("a") != boost::none);
+    BOOST_CHECK(cache.get("b") != boost::none);
+    BOOST_CHECK(cache.get("c") != boost::none);
+    BOOST_CHECK(cache.get("d") != boost::none);
+
+    // insert fifth program which should evict the oldest ("a")
+    cache.insert("e", compute::program());
+
+    // check that "a" has been evicted and that "e" is now present
+    BOOST_CHECK(cache.get("a") == boost::none);
+    BOOST_CHECK(cache.get("b") != boost::none);
+    BOOST_CHECK(cache.get("c") != boost::none);
+    BOOST_CHECK(cache.get("d") != boost::none);
+    BOOST_CHECK(cache.get("e") != boost::none);
+
+    // clear cache and ensure no program objects are found
+    cache.clear();
+    BOOST_CHECK(cache.get("a") == boost::none);
+    BOOST_CHECK(cache.get("b") == boost::none);
+    BOOST_CHECK(cache.get("c") == boost::none);
+    BOOST_CHECK(cache.get("d") == boost::none);
+    BOOST_CHECK(cache.get("e") == boost::none);
+}
+
+BOOST_AUTO_TEST_SUITE_END()