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70 lines
2.9 KiB
70 lines
2.9 KiB
/*
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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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