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/* |
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* Licensed to the Apache Software Foundation (ASF) under one or more |
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* contributor license agreements. See the NOTICE file distributed with |
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* this work for additional information regarding copyright ownership. |
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* The ASF licenses this file to You under the Apache License, Version 2.0 |
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* (the "License"); you may not use this file except in compliance with |
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* the License. You may obtain a copy of the License at |
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* |
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* http://www.apache.org/licenses/LICENSE-2.0
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* |
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* Unless required by applicable law or agreed to in writing, software |
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* distributed under the License is distributed on an "AS IS" BASIS, |
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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* See the License for the specific language governing permissions and |
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* limitations under the License. |
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*/ |
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package org.apache.harmony.unpack200.tests; |
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import java.io.DataInputStream; |
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import java.io.IOException; |
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import java.io.InputStream; |
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import junit.framework.TestCase; |
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import org.apache.harmony.unpack200.Segment; |
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public class ClassVersionTest extends TestCase { |
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private static final int JAVA_15 = 49; |
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public void testCorrectVersionOfSegment() throws IOException { |
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InputStream in = Segment.class |
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.getResourceAsStream("/org/apache/harmony/unpack200/Segment.class"); |
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DataInputStream din = new DataInputStream(in); |
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assertEquals(0xCAFEBABE, din.readInt()); |
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din.readShort(); // MINOR -- don't care
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assertTrue("Class file has been compiled with Java 1.5 compatibility" |
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+ " instead of 1.4 or lower", din.readShort() < JAVA_15); |
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} |
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public void testCorrectVersionOfTest() throws IOException { |
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InputStream in = Segment.class |
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.getResourceAsStream("/org/apache/harmony/unpack200/tests/ClassVersionTest.class"); |
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DataInputStream din = new DataInputStream(in); |
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assertEquals(0xCAFEBABE, din.readInt()); |
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din.readShort(); // MINOR -- don't care
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assertTrue("Class file has been compiled with Java 1.5 compatibility" |
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+ " instead of 1.4 or lower", din.readShort() < JAVA_15); |
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din.close(); |
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} |
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public void testCorrectVersionOfAdapter() throws IOException { |
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// tests that both the file is on the classpath and that it's been
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// compiled correctly, but without actually loading the class
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InputStream in = Segment.class |
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.getResourceAsStream("/org/apache/harmony/unpack200/Pack200Adapter.class"); |
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if (in != null) { // If running in Eclipse and Java5 stuff not
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// built/available
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DataInputStream din = new DataInputStream(in); |
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assertEquals(0xCAFEBABE, din.readInt()); |
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din.readShort(); // MINOR -- don't care
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assertTrue("Class file needs 1.5 compatibility", |
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din.readShort() >= JAVA_15); |
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din.close(); |
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} |
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} |
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} |
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