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/*******************************************************************************
* Copyright (c) 2009, 2021 Mountainminds GmbH & Co. KG and Contributors
* This program and the accompanying materials are made available under
* the terms of the Eclipse Public License 2.0 which is available at
* http://www.eclipse.org/legal/epl-2.0
*
* SPDX-License-Identifier: EPL-2.0
*
* Contributors:
* Marc R. Hoffmann - initial API and implementation
*
*******************************************************************************/
package org.jacoco.core.internal;
import static org.junit.Assert.assertEquals;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.util.zip.GZIPOutputStream;
import java.util.zip.ZipEntry;
import java.util.zip.ZipOutputStream;
import org.jacoco.core.test.TargetLoader;
import org.junit.AssumptionViolatedException;
import org.junit.Test;
/**
* Unit tests for {@link ContentTypeDetector}.
*/
public class ContentTypeDetectorTest {
private byte[] data;
private ContentTypeDetector detector;
@Test
public void testEmptyStream() throws IOException {
initData();
assertEquals(ContentTypeDetector.UNKNOWN, detector.getType());
assertContent();
}
@Test
public void testClassFile() throws IOException {
initData(TargetLoader
.getClassDataAsBytes(ContentTypeDetectorTest.class));
assertEquals(ContentTypeDetector.CLASSFILE, detector.getType());
assertContent();
}
@Test
public void testClassFile11() throws IOException {
initData(0xCA, 0xFE, 0xBA, 0xBE, 0x00, 0x03, 0x00, 0x2D);
assertEquals(ContentTypeDetector.CLASSFILE, detector.getType());
assertContent();
}
@Test
public void testClassFile12() throws IOException {
initData(0xCA, 0xFE, 0xBA, 0xBE, 0x00, 0x00, 0x00, 0x2E);
assertEquals(ContentTypeDetector.CLASSFILE, detector.getType());
assertContent();
}
@Test
public void testClassFile13() throws IOException {
initData(0xCA, 0xFE, 0xBA, 0xBE, 0x00, 0x00, 0x00, 0x2F);
assertEquals(ContentTypeDetector.CLASSFILE, detector.getType());
assertContent();
}
@Test
public void testClassFile14() throws IOException {
initData(0xCA, 0xFE, 0xBA, 0xBE, 0x00, 0x00, 0x00, 0x30);
assertEquals(ContentTypeDetector.CLASSFILE, detector.getType());
assertContent();
}
@Test
public void testClassFile15() throws IOException {
initData(0xCA, 0xFE, 0xBA, 0xBE, 0x00, 0x00, 0x00, 0x31);
assertEquals(ContentTypeDetector.CLASSFILE, detector.getType());
assertContent();
}
@Test
public void testClassFile16() throws IOException {
initData(0xCA, 0xFE, 0xBA, 0xBE, 0x00, 0x00, 0x00, 0x32);
assertEquals(ContentTypeDetector.CLASSFILE, detector.getType());
assertContent();
}
@Test
public void testClassFile17() throws IOException {
initData(0xCA, 0xFE, 0xBA, 0xBE, 0x00, 0x00, 0x00, 0x33);
assertEquals(ContentTypeDetector.CLASSFILE, detector.getType());
assertContent();
}
@Test
public void testClassFile18() throws IOException {
initData(0xCA, 0xFE, 0xBA, 0xBE, 0x00, 0x00, 0x00, 0x34);
assertEquals(ContentTypeDetector.CLASSFILE, detector.getType());
assertContent();
}
@Test
public void testClassFile19() throws IOException {
initData(0xCA, 0xFE, 0xBA, 0xBE, 0x00, 0x00, 0x00, 0x35);
assertEquals(ContentTypeDetector.CLASSFILE, detector.getType());
assertContent();
}
@Test
public void should_detect_java_10() throws IOException {
initData(0xCA, 0xFE, 0xBA, 0xBE, 0x00, 0x00, 0x00, 0x36);
assertEquals(ContentTypeDetector.CLASSFILE, detector.getType());
assertContent();
}
@Test
public void should_detect_java_11() throws IOException {
initData(0xCA, 0xFE, 0xBA, 0xBE, 0x00, 0x00, 0x00, 0x37);
assertEquals(ContentTypeDetector.CLASSFILE, detector.getType());
assertContent();
}
@Test
public void should_detect_java_11_with_preview_features()
throws IOException {
initData(0xCA, 0xFE, 0xBA, 0xBE, 0xFF, 0xFF, 0x00, 0x37);
assertEquals(ContentTypeDetector.CLASSFILE, detector.getType());
assertContent();
}
@Test
public void should_detect_java_12() throws IOException {
initData(0xCA, 0xFE, 0xBA, 0xBE, 0x00, 0x00, 0x00, 0x38);
assertEquals(ContentTypeDetector.CLASSFILE, detector.getType());
assertContent();
}
@Test
public void should_detect_java_12_with_preview_features()
throws IOException {
initData(0xCA, 0xFE, 0xBA, 0xBE, 0xFF, 0xFF, 0x00, 0x38);
assertEquals(ContentTypeDetector.CLASSFILE, detector.getType());
assertContent();
}
@Test
public void should_detect_java_13() throws IOException {
initData(0xCA, 0xFE, 0xBA, 0xBE, 0x00, 0x00, 0x00, 0x39);
assertEquals(ContentTypeDetector.CLASSFILE, detector.getType());
assertContent();
}
@Test
public void should_detect_java_13_with_preview_features()
throws IOException {
initData(0xCA, 0xFE, 0xBA, 0xBE, 0xFF, 0xFF, 0x00, 0x39);
assertEquals(ContentTypeDetector.CLASSFILE, detector.getType());
assertContent();
}
@Test
public void should_detect_java_14() throws IOException {
initData(0xCA, 0xFE, 0xBA, 0xBE, 0x00, 0x00, 0x00, 0x3A);
assertEquals(ContentTypeDetector.CLASSFILE, detector.getType());
assertContent();
}
@Test
public void should_detect_java_14_with_preview_features()
throws IOException {
initData(0xCA, 0xFE, 0xBA, 0xBE, 0xFF, 0xFF, 0x00, 0x3A);
assertEquals(ContentTypeDetector.CLASSFILE, detector.getType());
assertContent();
}
@Test
public void should_detect_java_42() throws IOException {
initData(0xCA, 0xFE, 0xBA, 0xBE, 0x00, 0x00, 0x00, 0x56);
assertEquals(ContentTypeDetector.CLASSFILE, detector.getType());
assertContent();
}
@Test
public void should_not_detect_MachO_fat_binary_with_44_architectures()
throws IOException {
initData(0xCA, 0xFE, 0xBA, 0xBE, 0x00, 0x00, 0x00, 0x2C);
assertEquals(ContentTypeDetector.UNKNOWN, detector.getType());
assertContent();
}
@Test
public void testMachObjectFile() throws IOException {
initData(0xCA, 0xFE, 0xBA, 0xBE, 0x00, 0x00, 0x00, 0x02);
assertEquals(ContentTypeDetector.UNKNOWN, detector.getType());
assertContent();
}
@Test
public void testZipFile() throws IOException {
final ByteArrayOutputStream buffer = new ByteArrayOutputStream();
final ZipOutputStream zip = new ZipOutputStream(buffer);
zip.putNextEntry(new ZipEntry("hello.txt"));
zip.write("Hello Zip!".getBytes());
zip.close();
initData(buffer.toByteArray());
assertEquals(ContentTypeDetector.ZIPFILE, detector.getType());
assertContent();
}
@Test
public void testPack200File() throws IOException {
try {
Class.forName("java.util.jar.Pack200");
} catch (ClassNotFoundException e) {
throw new AssumptionViolatedException(
"this test requires JDK with Pack200");
}
final ByteArrayOutputStream zipbuffer = new ByteArrayOutputStream();
final ZipOutputStream zip = new ZipOutputStream(zipbuffer);
zip.putNextEntry(new ZipEntry("hello.txt"));
zip.write("Hello Zip!".getBytes());
zip.close();
final ByteArrayOutputStream pack200buffer = new ByteArrayOutputStream();
Pack200Streams.pack(zipbuffer.toByteArray(), pack200buffer);
initData(pack200buffer.toByteArray());
assertEquals(ContentTypeDetector.PACK200FILE, detector.getType());
assertContent();
}
@Test
public void testGZipFile() throws IOException {
final ByteArrayOutputStream buffer = new ByteArrayOutputStream();
final OutputStream gz = new GZIPOutputStream(buffer);
gz.write("Hello gz!".getBytes());
gz.close();
initData(buffer.toByteArray());
assertEquals(ContentTypeDetector.GZFILE, detector.getType());
assertContent();
}
@Test
public void testStreamWithoutMarkSupport() throws IOException {
initData(0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07);
detector = new ContentTypeDetector(new ByteArrayInputStream(data) {
@Override
public void mark(int readlimit) {
}
@Override
public void reset() {
}
@Override
public boolean markSupported() {
return false;
}
});
assertContent();
}
private void initData(byte[] bytes) throws IOException {
this.data = bytes;
this.detector = new ContentTypeDetector(new ByteArrayInputStream(data));
}
private void initData(final int... bytes) throws IOException {
byte[] data = new byte[bytes.length];
for (int i = 0; i < bytes.length; i++) {
data[i] = (byte) bytes[i];
}
initData(data);
}
private void assertContent() throws IOException {
final InputStream actual = detector.getInputStream();
for (int b : data) {
assertEquals(b, (byte) actual.read());
}
assertEquals(-1, actual.read());
}
}
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