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Commons IO example source code file (TaggedInputStreamTest.java)
The Commons IO TaggedInputStreamTest.java source code/* * 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.io.input; import java.io.ByteArrayInputStream; import java.io.IOException; import java.io.InputStream; import java.util.UUID; import junit.framework.TestCase; import org.apache.commons.io.TaggedIOException; /** * JUnit Test Case for {@link TaggedInputStream}. */ public class TaggedInputStreamTest extends TestCase { public void testEmptyStream() { try { InputStream stream = new TaggedInputStream(new ClosedInputStream()); assertEquals(0, stream.available()); assertEquals(-1, stream.read()); assertEquals(-1, stream.read(new byte[1])); assertEquals(-1, stream.read(new byte[1], 0, 1)); stream.close(); } catch (IOException e) { fail("Unexpected exception thrown"); } } public void testNormalStream() { try { InputStream stream = new TaggedInputStream( new ByteArrayInputStream(new byte[] { 'a', 'b', 'c' })); assertEquals(3, stream.available()); assertEquals('a', stream.read()); byte[] buffer = new byte[1]; assertEquals(1, stream.read(buffer)); assertEquals('b', buffer[0]); assertEquals(1, stream.read(buffer, 0, 1)); assertEquals('c', buffer[0]); assertEquals(-1, stream.read()); stream.close(); } catch (IOException e) { fail("Unexpected exception thrown"); } } public void testBrokenStream() { IOException exception = new IOException("test exception"); TaggedInputStream stream = new TaggedInputStream(new BrokenInputStream(exception)); // Test the available() method try { stream.available(); fail("Expected exception not thrown."); } catch (IOException e) { assertTrue(stream.isCauseOf(e)); try { stream.throwIfCauseOf(e); fail("Expected exception not thrown."); } catch (IOException e2) { assertEquals(exception, e2); } } // Test the read() method try { stream.read(); fail("Expected exception not thrown."); } catch (IOException e) { assertTrue(stream.isCauseOf(e)); try { stream.throwIfCauseOf(e); fail("Expected exception not thrown."); } catch (IOException e2) { assertEquals(exception, e2); } } // Test the close() method try { stream.close(); fail("Expected exception not thrown."); } catch (IOException e) { assertTrue(stream.isCauseOf(e)); try { stream.throwIfCauseOf(e); fail("Expected exception not thrown."); } catch (IOException e2) { assertEquals(exception, e2); } } } public void testOtherException() { IOException exception = new IOException("test exception"); InputStream closed = new ClosedInputStream(); TaggedInputStream stream = new TaggedInputStream(closed); assertFalse(stream.isCauseOf(exception)); assertFalse(stream.isCauseOf( new TaggedIOException(exception, UUID.randomUUID()))); try { stream.throwIfCauseOf(exception); } catch (IOException e) { fail("Unexpected exception thrown"); } try { stream.throwIfCauseOf( new TaggedIOException(exception, UUID.randomUUID())); } catch (IOException e) { fail("Unexpected exception thrown"); } } } Other Commons IO examples (source code examples)Here is a short list of links related to this Commons IO TaggedInputStreamTest.java source code file: |
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