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diff --git a/fuzzylite/test/activation/ThresholdTest.cpp b/fuzzylite/test/activation/ThresholdTest.cpp
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+++ b/fuzzylite/test/activation/ThresholdTest.cpp
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+/*
+ fuzzylite (R), a fuzzy logic control library in C++.
+ Copyright (C) 2010-2017 FuzzyLite Limited. All rights reserved.
+ Author: Juan Rada-Vilela, Ph.D. <jcrada@fuzzylite.com>
+
+ This file is part of fuzzylite.
+
+ fuzzylite is free software: you can redistribute it and/or modify it under
+ the terms of the FuzzyLite License included with the software.
+
+ You should have received a copy of the FuzzyLite License along with
+ fuzzylite. If not, see <http://www.fuzzylite.com/license/>.
+
+ fuzzylite is a registered trademark of FuzzyLite Limited.
+ */
+
+#include "test/catch.hpp"
+#include "fl/Headers.h"
+
+namespace fl {
+
+    /**
+     * Tests: term/Function
+     *
+     * @author Juan Rada-Vilela, Ph.D.
+     *
+     */
+
+    TEST_CASE("Treshold can be clone ", "[activation][threshold]") {
+        Threshold* t = new Threshold("<", 1.0);
+        REQUIRE(t->getComparison() == Threshold::LessThan);
+        REQUIRE(Op::isEq(t->getValue(), 1.0));
+        FL_DBG(FllExporter().toString(t));
+
+        Threshold* clone = t->clone();
+        REQUIRE(clone->getComparison() == Threshold::LessThan);
+        REQUIRE(Op::isEq(clone->getValue(), 1.0));
+        FL_DBG(FllExporter().toString(clone));
+    }
+
+    TEST_CASE("Treshold can be copy-constructed", "[activation][threshold]") {
+        Threshold* t = new Threshold(">=", 1.0);
+        REQUIRE(t->getComparison() == Threshold::GreaterThanOrEqualTo);
+        REQUIRE(Op::isEq(t->getValue(), 1.0));
+        FL_DBG(FllExporter().toString(t));
+
+        Threshold clone(*t);
+        REQUIRE(clone.getComparison() == Threshold::GreaterThanOrEqualTo);
+        REQUIRE(Op::isEq(clone.getValue(), 1.0));
+        FL_DBG(FllExporter().toString(&clone));
+    }
+
+    TEST_CASE("Treshold can be assigned", "[activation][threshold]") {
+        Threshold* t = new Threshold(">=", 1.0);
+        REQUIRE(t->getComparison() == Threshold::GreaterThanOrEqualTo);
+        REQUIRE(Op::isEq(t->getValue(), 1.0));
+        FL_DBG(FllExporter().toString(t));
+
+        Threshold clone = *t;
+        REQUIRE(clone.getComparison() == Threshold::GreaterThanOrEqualTo);
+        REQUIRE(Op::isEq(clone.getValue(), 1.0));
+        FL_DBG(FllExporter().toString(&clone));
+    }
+
+}