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Diffstat (limited to 'src/test/java/org/apache/commons/compress/utils/ChecksumCalculatingInputStreamTest.java')
| -rw-r--r-- | src/test/java/org/apache/commons/compress/utils/ChecksumCalculatingInputStreamTest.java | 136 |
1 files changed, 136 insertions, 0 deletions
diff --git a/src/test/java/org/apache/commons/compress/utils/ChecksumCalculatingInputStreamTest.java b/src/test/java/org/apache/commons/compress/utils/ChecksumCalculatingInputStreamTest.java new file mode 100644 index 000000000..a9e52464c --- /dev/null +++ b/src/test/java/org/apache/commons/compress/utils/ChecksumCalculatingInputStreamTest.java @@ -0,0 +1,136 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one or more + * contributor license agreements. See the NOTICE file distributed with + * this work for additional information regarding copyright ownership. + * The ASF licenses this file to You under the Apache License, Version 2.0 + * (the "License"); you may not use this file except in compliance with + * the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ +package org.apache.commons.compress.utils; + +import org.junit.Test; + +import java.io.BufferedInputStream; +import java.io.ByteArrayInputStream; +import java.io.IOException; +import java.util.zip.Adler32; +import java.util.zip.CRC32; + +import static org.junit.Assert.*; + +/** + * Unit tests for class {@link ChecksumCalculatingInputStream org.apache.commons.compress.utils.ChecksumCalculatingInputStream}. + * + * @date 13.06.2017 + * @see ChecksumCalculatingInputStream + **/ +public class ChecksumCalculatingInputStreamTest { + + + + @Test + public void testSkipReturningZero() throws IOException { + + Adler32 adler32 = new Adler32(); + byte[] byteArray = new byte[0]; + ByteArrayInputStream byteArrayInputStream = new ByteArrayInputStream(byteArray); + ChecksumCalculatingInputStream checksumCalculatingInputStream = new ChecksumCalculatingInputStream(adler32, byteArrayInputStream); + long skipResult = checksumCalculatingInputStream.skip(60L); + + assertEquals(0L, skipResult); + + assertEquals(1L, checksumCalculatingInputStream.getValue()); + + + } + + + @Test + public void testSkipReturningPositive() throws IOException { + + Adler32 adler32 = new Adler32(); + byte[] byteArray = new byte[6]; + ByteArrayInputStream byteArrayInputStream = new ByteArrayInputStream(byteArray); + ChecksumCalculatingInputStream checksumCalculatingInputStream = new ChecksumCalculatingInputStream(adler32, byteArrayInputStream); + long skipResult = checksumCalculatingInputStream.skip((byte)0); + + assertEquals(1L, skipResult); + + assertEquals(65537L, checksumCalculatingInputStream.getValue()); + + } + + + @Test + public void testReadTakingNoArguments() throws IOException { + + Adler32 adler32 = new Adler32(); + byte[] byteArray = new byte[6]; + ByteArrayInputStream byteArrayInputStream = new ByteArrayInputStream(byteArray); + ChecksumCalculatingInputStream checksumCalculatingInputStream = new ChecksumCalculatingInputStream(adler32, byteArrayInputStream); + BufferedInputStream bufferedInputStream = new BufferedInputStream(checksumCalculatingInputStream); + int inputStreamReadResult = bufferedInputStream.read(byteArray, 0, 1); + int checkSumCalculationReadResult = checksumCalculatingInputStream.read(); + + assertFalse(checkSumCalculationReadResult == inputStreamReadResult); + assertEquals((-1), checkSumCalculationReadResult); + + assertEquals(0, byteArrayInputStream.available()); + + assertEquals(393217L, checksumCalculatingInputStream.getValue()); + + } + + + @Test + public void testReadTakingByteArray() throws IOException { + + Adler32 adler32 = new Adler32(); + byte[] byteArray = new byte[6]; + ByteArrayInputStream byteArrayInputStream = new ByteArrayInputStream(byteArray); + ChecksumCalculatingInputStream checksumCalculatingInputStream = new ChecksumCalculatingInputStream(adler32, byteArrayInputStream); + int readResult = checksumCalculatingInputStream.read(byteArray); + + assertEquals(6, readResult); + + assertEquals(0, byteArrayInputStream.available()); + assertEquals(393217L, checksumCalculatingInputStream.getValue()); + + } + + + @Test(expected = NullPointerException.class) + public void testClassInstantiationWithParameterBeingNullThrowsNullPointerExceptionOne() { + + ChecksumCalculatingInputStream checksumCalculatingInputStream = new ChecksumCalculatingInputStream(null,null); + + + } + + + @Test(expected = NullPointerException.class) + public void testClassInstantiationWithParameterBeingNullThrowsNullPointerExceptionTwo() { + + ChecksumCalculatingInputStream checksumCalculatingInputStream = new ChecksumCalculatingInputStream(null,new ByteArrayInputStream(new byte[1])); + + + } + + + @Test(expected = NullPointerException.class) + public void testClassInstantiationWithParameterBeingNullThrowsNullPointerExceptionThree() { + + ChecksumCalculatingInputStream checksumCalculatingInputStream = new ChecksumCalculatingInputStream(new CRC32(),null); + + } + + +}
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