@@ -0,0 +1,1961 @@
+/*%0A * Copyright (C) 2017 grandcentrix GmbH%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 */%0A%0Apackage net.grandcentrix.thirtyinch.internal;%0A%0A%0Aimport org.junit.Test;%0A%0Aimport static org.assertj.core.api.Java6Assertions.assertThat;%0A%0Apublic class OneTimeRemovableTest %7B%0A%0A    @Test%0A    public void remove_once_calls_OnRemove() throws Exception %7B%0A        final int%5B%5D called = new int%5B%5D%7B0%7D;%0A        final OneTimeRemovable removable = new OneTimeRemovable() %7B%0A            @Override%0A            public void onRemove() %7B%0A                called%5B0%5D++;%0A            %7D%0A        %7D;%0A%0A        assertThat(called%5B0%5D).isEqualTo(0);%0A        assertThat(removable.isRemoved()).isFalse();%0A%0A        removable.remove();%0A        assertThat(called%5B0%5D).isEqualTo(1);%0A        assertThat(removable.isRemoved()).isTrue();%0A    %7D%0A%0A    @Test%0A    public void remove_twice_calls_OnRemove_once() throws Exception %7B%0A        final int%5B%5D called = new int%5B%5D%7B0%7D;%0A        final OneTimeRemovable removable = new OneTimeRemovable() %7B%0A            @Override%0A            public void onRemove() %7B%0A                called%5B0%5D++;%0A            %7D%0A        %7D;%0A%0A        assertThat(called%5B0%5D).isEqualTo(0);%0A        assertThat(removable.isRemoved()).isFalse();%0A%0A        removable.remove();%0A        assertThat(called%5B0%5D).isEqualTo(1);%0A        assertThat(removable.isRemoved()).isTrue();%0A%0A        removable.remove();%0A        assertThat(called%5B0%5D).isEqualTo(1);%0A        assertThat(removable.isRemoved()).isTrue();%0A    %7D%0A%7D

Add tests for OneTimeRemovable