2 files changed, 47 insertions, 0 deletions
diff --git a/vespalib/src/tests/hwaccelrated/CMakeLists.txt b/vespalib/src/tests/hwaccelrated/CMakeLists.txt
new file mode 100644
index 00000000000..9dda949d088
--- /dev/null
+++ b/vespalib/src/tests/hwaccelrated/CMakeLists.txt
@@ -0,0 +1,8 @@
+# Copyright 2017 Yahoo Holdings. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
+vespa_add_executable(vespalib_hwaccelrated_test_app TEST
+    SOURCES
+    hwaccelrated_test.cpp
+    DEPENDS
+    vespalib
+)
+vespa_add_test(NAME vespalib_hwaccelrated_test_app COMMAND vespalib_hwaccelrated_test_app)
diff --git a/vespalib/src/tests/hwaccelrated/hwaccelrated_test.cpp b/vespalib/src/tests/hwaccelrated/hwaccelrated_test.cpp
new file mode 100644
index 00000000000..757626ead94
--- /dev/null
+++ b/vespalib/src/tests/hwaccelrated/hwaccelrated_test.cpp
@@ -0,0 +1,39 @@
+// Copyright 2017 Yahoo Holdings. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
+
+#include <vespa/vespalib/testkit/test_kit.h>
+#include <vespa/vespalib/hwaccelrated/iaccelrated.h>
+#include <vespa/vespalib/hwaccelrated/generic.h>
+
+using namespace vespalib;
+
+template<typename T>
+std::vector<T> createAndFill(size_t sz) {
+    std::vector<T> v(sz);
+    for (size_t i(0); i < sz; i++) {
+        v[i] = i;
+    }
+    return v;
+}
+
+template<typename T>
+void verifyEuclidianDistance(const hwaccelrated::IAccelrated & accel) {
+    const size_t testLength(255);
+    std::vector<T> a = createAndFill<T>(testLength);
+    std::vector<T> b = createAndFill<T>(testLength);
+    for (size_t j(0); j < 0x20; j++) {
+        T sum(0);
+        for (size_t i(j); i < testLength; i++) {
+            sum += (a[i] - b[i]) * (a[i] - b[i]);
+        }
+        T hwComputedSum(accel.squaredEuclidianDistance(&a[j], &b[j], testLength - j));
+        EXPECT_EQUAL (sum, hwComputedSum);
+    }
+}
+
+TEST("test euclidian distance") {
+    hwaccelrated::GenericAccelrator genericAccelrator;
+    verifyEuclidianDistance<float>(genericAccelrator);
+    verifyEuclidianDistance<double >(genericAccelrator);
+}
+
+TEST_MAIN() { TEST_RUN_ALL(); }