/* * The MIT License (MIT) * * Copyright (c) 2018 Yegor Bugayenko * * Permission is hereby granted, free of charge, to any person obtaining a copy * of this software and associated documentation files (the "Software"), to deal * in the Software without restriction, including without limitation the rights * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell * copies of the Software, and to permit persons to whom the Software is * furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included * in all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE * SOFTWARE. */ package org.cactoos.http.io; import java.util.Arrays; import org.hamcrest.MatcherAssert; import org.hamcrest.core.IsEqual; import org.junit.Test; /** * Test case for {@link BoundedByteBuffer}. * * @since 0.1 * @checkstyle JavadocMethodCheck (500 lines) * @checkstyle MagicNumberCheck (500 lines) */ public final class BoundedByteBufferTest { @Test public void worksWithEqualSameSizeArray() { final int limit = 4; final BoundedByteBuffer buffer = new BoundedByteBuffer(limit); buffer.offer((byte) 11); final int[] bytes = {1, 2, 3, 4}; Arrays.stream(bytes).forEach(b -> buffer.offer((byte) b)); MatcherAssert.assertThat( buffer.equalTo(new byte[]{1, 2, 3, 4}), new IsEqual<>(true) ); } @Test public void worksWithUnequalSameSizeArray() { final int limit = 4; final BoundedByteBuffer buffer = new BoundedByteBuffer(limit); buffer.offer((byte) 11); final int[] bytes = {1, 2, 3, 5}; Arrays.stream(bytes).forEach(b -> buffer.offer((byte) b)); MatcherAssert.assertThat( buffer.equalTo(new byte[]{1, 2, 3, 4}), new IsEqual<>(false) ); } @Test public void onlyKeepsTheLastNBytes() { final int limit = 4; final BoundedByteBuffer buffer = new BoundedByteBuffer(limit); final int[] bytes = {1, 2, 3, 4, 5, 6, 7, 8 }; Arrays.stream(bytes).forEach(b -> buffer.offer((byte) b)); MatcherAssert.assertThat( buffer.equalTo(new byte[] {5, 6, 7, 8 }), new IsEqual<>(true) ); } @Test public void worksWithSmallerArray() { final int limit = 4; final BoundedByteBuffer buffer = new BoundedByteBuffer(limit); final int[] bytes = {1, 2}; Arrays.stream(bytes).forEach(b -> buffer.offer((byte) b)); MatcherAssert.assertThat( buffer.equalTo(new byte[] {1, 2}), new IsEqual<>(true) ); } @Test public void worksWithSmallerArrayFailsComparisonWithLarger() { final int limit = 4; final BoundedByteBuffer buffer = new BoundedByteBuffer(limit); final int[] bytes = {1, 2}; Arrays.stream(bytes).forEach(b -> buffer.offer((byte) b)); MatcherAssert.assertThat( buffer.equalTo(new byte[] {1, 2, 0}), new IsEqual<>(false) ); } @Test public void equalsWhenShiftedOdd() { final int limit = 4; final BoundedByteBuffer buffer = new BoundedByteBuffer(limit); buffer.offer((byte) 11); final int[] bytes = {1, 2, 1, 2}; Arrays.stream(bytes).forEach(b -> buffer.offer((byte) b)); MatcherAssert.assertThat( buffer.equalTo(new byte[]{1, 2, 1, 2}), new IsEqual<>(true) ); } }