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+/*%0A * Copyright 2016-2018 Talsma ICT%0A *%0A * Licensed under the Apache License, Version 2.0 (the %22License%22);%0A * you may not use this file except in compliance with the License.%0A * You may obtain a copy of the License at%0A *%0A *         http://www.apache.org/licenses/LICENSE-2.0%0A *%0A * Unless required by applicable law or agreed to in writing, software%0A * distributed under the License is distributed on an %22AS IS%22 BASIS,%0A * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.%0A * See the License for the specific language governing permissions and%0A * limitations under the License.%0A */%0Apackage nl.talsmasoftware.context.clearable;%0A%0Aimport nl.talsmasoftware.context.ContextManagers;%0Aimport org.junit.Test;%0A%0A/**%0A * Tests for clearing context managers.%0A *%0A * @author Sjoerd Talsma%0A */%0Apublic class ClearableContextManagerTest %7B%0A%0A    @Test(expected = UnsupportedOperationException.class)%0A    public void testUnsupportedBehaviour() %7B%0A        ContextManagers.clearManagedContexts();%0A    %7D%0A%0A%7D%0A

Make a start with unit test for ClearableContextManager