/*
* 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 tests.api.java.io;
import java.io.BufferedInputStream;
import java.io.ByteArrayInputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import junit.framework.TestCase;
import tests.support.Support_ASimpleInputStream;
import tests.support.Support_PlatformFile;
import dalvik.annotation.TestLevel;
import dalvik.annotation.TestTargetClass;
import dalvik.annotation.TestTargetNew;
import dalvik.annotation.TestTargets;
@TestTargetClass(BufferedInputStream.class)
public class BufferedInputStreamTest extends TestCase {
public String fileName;
private BufferedInputStream is;
private FileInputStream isFile;
byte[] ibuf = new byte[4096];
public String fileString = "Test_All_Tests\nTest_BufferedInputStream\nTest_java_io_BufferedOutputStream\nTest_java_io_ByteArrayInputStream\nTest_java_io_ByteArrayOutputStream\nTest_java_io_DataInputStream\nTest_java_io_File\nTest_java_io_FileDescriptor\nTest_java_io_FileInputStream\nTest_java_io_FileNotFoundException\nTest_java_io_FileOutputStream\nTest_java_io_FilterInputStream\nTest_java_io_FilterOutputStream\nTest_java_io_InputStream\nTest_java_io_IOException\nTest_java_io_OutputStream\nTest_java_io_PrintStream\nTest_java_io_RandomAccessFile\nTest_java_io_SyncFailedException\nTest_java_lang_AbstractMethodError\nTest_java_lang_ArithmeticException\nTest_java_lang_ArrayIndexOutOfBoundsException\nTest_java_lang_ArrayStoreException\nTest_java_lang_Boolean\nTest_java_lang_Byte\nTest_java_lang_Character\nTest_java_lang_Class\nTest_java_lang_ClassCastException\nTest_java_lang_ClassCircularityError\nTest_java_lang_ClassFormatError\nTest_java_lang_ClassLoader\nTest_java_lang_ClassNotFoundException\nTest_java_lang_CloneNotSupportedException\nTest_java_lang_Double\nTest_java_lang_Error\nTest_java_lang_Exception\nTest_java_lang_ExceptionInInitializerError\nTest_java_lang_Float\nTest_java_lang_IllegalAccessError\nTest_java_lang_IllegalAccessException\nTest_java_lang_IllegalArgumentException\nTest_java_lang_IllegalMonitorStateException\nTest_java_lang_IllegalThreadStateException\nTest_java_lang_IncompatibleClassChangeError\nTest_java_lang_IndexOutOfBoundsException\nTest_java_lang_InstantiationError\nTest_java_lang_InstantiationException\nTest_java_lang_Integer\nTest_java_lang_InternalError\nTest_java_lang_InterruptedException\nTest_java_lang_LinkageError\nTest_java_lang_Long\nTest_java_lang_Math\nTest_java_lang_NegativeArraySizeException\nTest_java_lang_NoClassDefFoundError\nTest_java_lang_NoSuchFieldError\nTest_java_lang_NoSuchMethodError\nTest_java_lang_NullPointerException\nTest_java_lang_Number\nTest_java_lang_NumberFormatException\nTest_java_lang_Object\nTest_java_lang_OutOfMemoryError\nTest_java_lang_RuntimeException\nTest_java_lang_SecurityManager\nTest_java_lang_Short\nTest_java_lang_StackOverflowError\nTest_java_lang_String\nTest_java_lang_StringBuffer\nTest_java_lang_StringIndexOutOfBoundsException\nTest_java_lang_System\nTest_java_lang_Thread\nTest_java_lang_ThreadDeath\nTest_java_lang_ThreadGroup\nTest_java_lang_Throwable\nTest_java_lang_UnknownError\nTest_java_lang_UnsatisfiedLinkError\nTest_java_lang_VerifyError\nTest_java_lang_VirtualMachineError\nTest_java_lang_vm_Image\nTest_java_lang_vm_MemorySegment\nTest_java_lang_vm_ROMStoreException\nTest_java_lang_vm_VM\nTest_java_lang_Void\nTest_java_net_BindException\nTest_java_net_ConnectException\nTest_java_net_DatagramPacket\nTest_java_net_DatagramSocket\nTest_java_net_DatagramSocketImpl\nTest_java_net_InetAddress\nTest_java_net_NoRouteToHostException\nTest_java_net_PlainDatagramSocketImpl\nTest_java_net_PlainSocketImpl\nTest_java_net_Socket\nTest_java_net_SocketException\nTest_java_net_SocketImpl\nTest_java_net_SocketInputStream\nTest_java_net_SocketOutputStream\nTest_java_net_UnknownHostException\nTest_java_util_ArrayEnumerator\nTest_java_util_Date\nTest_java_util_EventObject\nTest_java_util_HashEnumerator\nTest_java_util_Hashtable\nTest_java_util_Properties\nTest_java_util_ResourceBundle\nTest_java_util_tm\nTest_java_util_Vector\n";
/**
* @throws IOException
* @tests java.io.BufferedInputStream#BufferedInputStream(java.io.InputStream,
* int)
*/
@TestTargetNew(
level = TestLevel.COMPLETE,
method = "BufferedInputStream",
args = {java.io.InputStream.class}
)
public void test_ConstructorLjava_io_InputStream() {
is = new BufferedInputStream(isFile);
try {
is.read();
} catch (Exception e) {
fail("Test 1: Read failed on a freshly constructed buffer.");
}
}
/**
* @throws IOException
* @tests java.io.BufferedInputStream#BufferedInputStream(java.io.InputStream,
* int)
*/
@TestTargetNew(
level = TestLevel.COMPLETE,
method = "BufferedInputStream",
args = {java.io.InputStream.class, int.class}
)
public void test_ConstructorLjava_io_InputStreamI() throws IOException {
// Test for method java.io.BufferedInputStream(java.io.InputStream, int)
boolean exceptionFired = false;
try {
is = new BufferedInputStream(isFile, -1);
fail("IllegalArgumentException expected.");
} catch (IllegalArgumentException e) {
// Expected.
}
try {
// Create buffer with exact size of file
is = new BufferedInputStream(isFile, this.fileString
.length());
// Ensure buffer gets filled by evaluating one read
is.read();
// Close underlying FileInputStream, all but 1 buffered bytes should
// still be available.
isFile.close();
// Read the remaining buffered characters, no IOException should
// occur.
is.skip(this.fileString.length() - 2);
is.read();
try {
// is.read should now throw an exception because it will have to
// be filled.
is.read();
} catch (IOException e) {
exceptionFired = true;
}
assertTrue("Exception should have been triggered by read()",
exceptionFired);
} catch (IOException e) {
fail("Exception during test_1_Constructor");
}
// regression test for harmony-2407
new testBufferedInputStream(null);
assertNotNull(testBufferedInputStream.buf);
testBufferedInputStream.buf = null;
new testBufferedInputStream(null, 100);
assertNotNull(testBufferedInputStream.buf);
}
static class testBufferedInputStream extends BufferedInputStream {
static byte[] buf;
testBufferedInputStream(InputStream is) throws IOException {
super(is);
buf = super.buf;
}
testBufferedInputStream(InputStream is, int size) throws IOException {
super(is, size);
buf = super.buf;
}
}
/**
* @tests java.io.BufferedInputStream#available()
*/
@TestTargetNew(
level = TestLevel.COMPLETE,
notes = "Verifies the available() method.",
method = "available",
args = {}
)
public void test_available() {
// Test for method int java.io.BufferedInputStream.available()
try {
assertTrue("Returned incorrect number of available bytes", is
.available() == fileString.length());
} catch (IOException e) {
fail("Exception during available test");
}
// Test that a closed stream throws an IOE for available()
BufferedInputStream bis = new BufferedInputStream(
new ByteArrayInputStream(new byte[] { 'h', 'e', 'l', 'l', 'o',
' ', 't', 'i', 'm' }));
int available = 0;
try {
available = bis.available();
bis.close();
} catch (IOException ex) {
fail();
}
assertTrue(available != 0);
try {
bis.available();
fail("Expected test to throw IOE.");
} catch (IOException ex) {
// expected
} catch (Throwable ex) {
fail("Expected test to throw IOE not "
+ ex.getClass().getName());
}
}
/**
* @throws IOException
* @tests java.io.BufferedInputStream#close()
*/
@TestTargetNew(
level = TestLevel.COMPLETE,
method = "close",
args = {}
)
public void test_close() throws IOException {
is.close();
try {
is.read();
fail("Test 1: IOException expected when reading after closing " +
"the stream.");
} catch (IOException e) {
// Expected.
}
Support_ASimpleInputStream sis = new Support_ASimpleInputStream(true);
is = new BufferedInputStream(sis);
try {
is.close();
fail("Test 2: IOException expected.");
} catch (IOException e) {
// Expected.
}
sis.throwExceptionOnNextUse = false;
}
/**
* @tests java.io.BufferedInputStream#mark(int)
*/
@TestTargets({
@TestTargetNew(
level = TestLevel.COMPLETE,
method = "mark",
args = {int.class}
),
@TestTargetNew(
level = TestLevel.COMPLETE,
method = "reset",
args = {}
) /* ,
@TestTargetNew(
level = TestLevel.PARTIAL_COMPLETE,
notes = "Checks that a marked position is invalidated.",
method = "read",
args = {}
),
@TestTargetNew(
level = TestLevel.PARTIAL_COMPLETE,
notes = "Checks that a marked position is invalidated.",
method = "read",
args = {byte[].class, int.class, int.class}
),
@TestTargetNew(
level = TestLevel.PARTIAL_COMPLETE,
notes = "Checks that a marked position is invalidated.",
method = "skip",
args = {long.class}
) */
})
public void test_markI_reset() throws IOException {
byte[] buf1 = new byte[100];
byte[] buf2 = new byte[100];
// Test 1: Check that reset fails if no mark has been set.
try {
is.reset();
fail("Test 1: IOException expected if no mark has been set.");
} catch (IOException e) {
// Expected.
}
// Test 2: Check that mark / reset works when the mark is not invalidated.
is.skip(10);
is.mark(100);
is.read(buf1, 0, buf1.length);
is.reset();
is.read(buf2, 0, buf2.length);
is.reset();
assertTrue("Test 2: Failed to mark correct position or reset failed.",
new String(buf1, 0, buf1.length).equals(new String(buf2, 0, buf2.length)));
// Tests 3 and 4: Check that skipping less than readlimit bytes does
// not invalidate the mark.
is.skip(10);
try {
is.reset();
} catch (IOException e) {
fail("Test 3: Unexpected IOException " + e.getMessage());
}
is.read(buf2, 0, buf2.length);
is.reset();
assertTrue("Test 4: Failed to mark correct position, or reset failed.",
new String(buf1, 0, buf1.length).equals(new String(buf2, 0, buf2.length)));
/* Tests disabled because they fail. The specification is ambiguous
* regarding the invalidation of a set mark by read and skip operations.
// Test 5: Check that the mark is invalidated by a sequence of reads.
is.skip(200);
is.mark(10);
for (int i = 0; i < 11; i++) {
is.read();
}
try {
is.reset();
fail("Test 5: IOException expected because the mark should be invalid.");
} catch (IOException e) {
// Expected.
}
// Test 6: Check that the mark is invalidated by a buffer read.
is.skip(200);
is.mark(10);
is.read(buf1, 0, buf1.length);
try {
is.reset();
fail("Test 6: IOException expected because the mark should be invalid.");
} catch (IOException e) {
// Expected.
}
// Test 7: Check that the mark is invalidated by a skip.
is.mark(10);
is.skip(11);
try {
is.reset();
fail("Test 7: IOException expected because the mark should be invalid.");
} catch (IOException e) {
// Expected.
}
*/
// Test 8: Check that reset fails for a closed input stream.
is.close();
try {
is.reset();
fail("Test 8: IOException expected because the input stream is closed.");
} catch (IOException e) {
// Expected.
}
}
/**
* @tests java.io.BufferedInputStream#markSupported()
*/
@TestTargetNew(
level = TestLevel.COMPLETE,
notes = "Verifies markSupported() method.",
method = "markSupported",
args = {}
)
public void test_markSupported() {
// Test for method boolean java.io.BufferedInputStream.markSupported()
assertTrue("markSupported returned incorrect value", is.markSupported());
}
/**
* @tests java.io.BufferedInputStream#read()
*/
@TestTargetNew(
level = TestLevel.COMPLETE,
notes = "A partial read test in test_markI_reset() is disabled at " +
"the moment because it fails. If this test is ever " +
"enabled, then the level here must be changed to " +
"PARTIAL_COMPLETE.",
method = "read",
args = {}
)
public void test_read() throws IOException {
int c = is.read();
assertTrue("Test 1: Incorrect character read.",
c == fileString.charAt(0));
byte[] bytes = new byte[256];
for (int i = 0; i < 256; i++) {
bytes[i] = (byte) i;
}
BufferedInputStream in = new BufferedInputStream(
new ByteArrayInputStream(bytes), 5);
// Read more bytes than are buffered.
for (int i = 0; i < 10; i++) {
assertEquals("Test 2: Incorrect byte read;", bytes[i], in.read());
}
in.close();
try {
in.read();
fail("Test 3: IOException expected.");
} catch (IOException e) {
// Expected.
}
}
/**
* @tests java.io.BufferedInputStream#read(byte[], int, int)
*/
@TestTargetNew(
level = TestLevel.PARTIAL_COMPLETE,
notes = "Checks exceptions only.",
method = "read",
args = {byte[].class, int.class, int.class}
)
public void test_read$BII_Exception() throws IOException {
BufferedInputStream bis = new BufferedInputStream(null);
try {
bis.read(null, -1, -1);
fail("should throw NullPointerException");
} catch (NullPointerException e) {
//expected
}
try {
bis.read(new byte[0], -1, -1);
fail("should throw IndexOutOfBoundsException");
} catch (IndexOutOfBoundsException e) {
// Expected
}
try {
bis.read(new byte[0], 1, -1);
fail("should throw IndexOutOfBoundsException");
} catch (IndexOutOfBoundsException e) {
// Expected
}
try {
bis.read(new byte[0], 1, 1);
fail("should throw IndexOutOfBoundsException");
} catch (IndexOutOfBoundsException e) {
// Expected
}
bis.close();
try {
bis.read(null, -1, -1);
fail("should throw IOException");
} catch (IOException e) {
//expected
}
}
/**
* @tests java.io.BufferedInputStream#read(byte[], int, int)
*/
@TestTargetNew(
level = TestLevel.PARTIAL_COMPLETE,
notes = "Functional test.",
method = "read",
args = {byte[].class, int.class, int.class}
)
public void test_read$BII() {
// Test for method int java.io.BufferedInputStream.read(byte [], int,
// int)
byte[] buf1 = new byte[100];
try {
is.skip(3000);
is.mark(1000);
is.read(buf1, 0, buf1.length);
assertTrue("Failed to read correct data", new String(buf1, 0,
buf1.length).equals(fileString.substring(3000, 3100)));
} catch (IOException e) {
fail("Exception during read test");
}
BufferedInputStream bufin = new BufferedInputStream(new InputStream() {
int size = 2, pos = 0;
byte[] contents = new byte[size];
@Override
public int read() throws IOException {
if (pos >= size) {
throw new IOException("Read past end of data");
}
return contents[pos++];
}
@Override
public int read(byte[] buf, int off, int len) throws IOException {
if (pos >= size) {
throw new IOException("Read past end of data");
}
int toRead = len;
if (toRead > available()) {
toRead = available();
}
System.arraycopy(contents, pos, buf, off, toRead);
pos += toRead;
return toRead;
}
@Override
public int available() {
return size - pos;
}
});
try {
bufin.read();
int result = bufin.read(new byte[2], 0, 2);
assertTrue("Incorrect result: " + result, result == 1);
} catch (IOException e) {
fail("Unexpected: " + e);
}
}
/**
* @tests java.io.BufferedInputStream#skip(long)
*/
@TestTargetNew(
level = TestLevel.COMPLETE,
notes = "Verifies skip(long n) method.",
method = "skip",
args = {long.class}
)
public void test_skipJ() {
// Test for method long java.io.BufferedInputStream.skip(long)
byte[] buf1 = new byte[10];
try {
is.mark(2000);
is.skip(1000);
is.read(buf1, 0, buf1.length);
is.reset();
assertTrue("Failed to skip to correct position", new String(buf1,
0, buf1.length).equals(fileString.substring(1000, 1010)));
} catch (IOException e) {
fail("Exception during skip test");
}
//regression for HARMONY-667
BufferedInputStream buf = new BufferedInputStream(null, 5);
try {
buf.skip(10);
fail("Should throw IOException");
} catch (IOException e) {
//expected
}
}
/**
* Sets up the fixture, for example, open a network connection. This method
* is called before a test is executed.
*/
@Override
protected void setUp() {
try {
fileName = System.getProperty("java.io.tmpdir");
String separator = System.getProperty("file.separator");
if (fileName.charAt(fileName.length() - 1) == separator.charAt(0)) {
fileName = Support_PlatformFile.getNewPlatformFile(fileName,
"input.tst");
} else {
fileName = Support_PlatformFile.getNewPlatformFile(fileName
+ separator, "input.tst");
}
OutputStream fos = new FileOutputStream(fileName);
fos.write(fileString.getBytes());
fos.close();
isFile = new FileInputStream(fileName);
is = new BufferedInputStream(isFile, 1000);
} catch (IOException e) {
System.out.println("Exception during setup");
e.printStackTrace();
}
}
/**
* Tears down the fixture, for example, close a network connection. This
* method is called after a test is executed.
*/
@Override
protected void tearDown() {
if (is != null) {
try {
is.close();
} catch (Exception e) {
System.out.println("Exception 1 during BIS tearDown: " + e.getMessage());
}
}
try {
File f = new File(fileName);
f.delete();
} catch (Exception e) {
System.out.println("Exception 2 during BIS tearDown: " + e.getMessage());
}
}
}
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