| /* |
| * 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.harmony.luni.tests.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.InputStreamReader; |
| import java.io.OutputStream; |
| import junit.framework.TestCase; |
| import tests.support.Support_PlatformFile; |
| |
| 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"; |
| |
| /* |
| * @tests java.io.BufferedInputStream(InputStream) |
| */ |
| public void test_ConstructorLjava_io_InputStream() { |
| try { |
| BufferedInputStream str = new BufferedInputStream(null); |
| str.read(); |
| fail("Expected an IOException"); |
| } catch (IOException e) { |
| // Expected |
| } |
| } |
| |
| /* |
| * @tests java.io.BufferedInputStream(InputStream) |
| */ |
| public void test_ConstructorLjava_io_InputStreamI() throws IOException { |
| try { |
| BufferedInputStream str = new BufferedInputStream(null, 1); |
| str.read(); |
| fail("Expected an IOException"); |
| } catch (IOException e) { |
| // Expected |
| } |
| |
| // Test for method java.io.BufferedInputStream(java.io.InputStream, int) |
| |
| // 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(); |
| fail("Exception should have been triggered by read()"); |
| } catch (IOException e) { |
| // Expected |
| } |
| |
| // regression test for harmony-2407 |
| new MockBufferedInputStream(null); |
| assertNotNull(MockBufferedInputStream.buf); |
| MockBufferedInputStream.buf = null; |
| new MockBufferedInputStream(null, 100); |
| assertNotNull(MockBufferedInputStream.buf); |
| } |
| |
| static class MockBufferedInputStream extends BufferedInputStream { |
| static byte[] buf; |
| |
| MockBufferedInputStream(InputStream is) throws IOException { |
| super(is); |
| buf = super.buf; |
| } |
| |
| MockBufferedInputStream(InputStream is, int size) throws IOException { |
| super(is, size); |
| buf = super.buf; |
| } |
| } |
| |
| /** |
| * @tests java.io.BufferedInputStream#available() |
| */ |
| public void test_available() throws IOException { |
| assertTrue("Returned incorrect number of available bytes", is |
| .available() == fileString.length()); |
| |
| // 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 = bis.available(); |
| bis.close(); |
| assertTrue(available != 0); |
| |
| try { |
| bis.available(); |
| fail("Expected test to throw IOE."); |
| } catch (IOException ex) { |
| // expected |
| } |
| } |
| |
| /** |
| * @tests java.io.BufferedInputStream#close() |
| */ |
| public void test_close() throws IOException { |
| new BufferedInputStream(isFile).close(); |
| |
| // regression for HARMONY-667 |
| BufferedInputStream buf = new BufferedInputStream(null, 5); |
| buf.close(); |
| |
| InputStream in = new InputStream() { |
| Object lock = new Object(); |
| |
| @Override |
| public int read() { |
| return 1; |
| } |
| |
| @Override |
| public int read(byte[] buf, int offset, int length) { |
| synchronized (lock) { |
| try { |
| lock.wait(3000); |
| } catch (InterruptedException e) { |
| // Ignore |
| } |
| } |
| return 1; |
| } |
| |
| @Override |
| public void close() { |
| synchronized (lock) { |
| lock.notifyAll(); |
| } |
| } |
| }; |
| final BufferedInputStream bufin = new BufferedInputStream(in); |
| Thread thread = new Thread(new Runnable() { |
| public void run() { |
| try { |
| Thread.sleep(1000); |
| bufin.close(); |
| } catch (Exception e) { |
| // Ignored |
| } |
| } |
| }); |
| thread.start(); |
| try { |
| bufin.read(new byte[100], 0, 99); |
| fail("Should throw IOException"); |
| } catch (IOException e) { |
| // Expected |
| } |
| } |
| |
| /** |
| * @tests java.io.BufferedInputStream#mark(int) |
| */ |
| public void test_markI() throws IOException { |
| byte[] buf1 = new byte[100]; |
| byte[] buf2 = new byte[100]; |
| is.skip(3000); |
| is.mark(1000); |
| is.read(buf1, 0, buf1.length); |
| is.reset(); |
| is.read(buf2, 0, buf2.length); |
| is.reset(); |
| assertTrue("Failed to mark correct position", new String(buf1, 0, |
| buf1.length).equals(new String(buf2, 0, buf2.length))); |
| |
| byte[] bytes = new byte[256]; |
| for (int i = 0; i < 256; i++) { |
| bytes[i] = (byte) i; |
| } |
| InputStream in = new BufferedInputStream( |
| new ByteArrayInputStream(bytes), 12); |
| in.skip(6); |
| in.mark(14); |
| in.read(new byte[14], 0, 14); |
| in.reset(); |
| assertTrue("Wrong bytes", in.read() == 6 && in.read() == 7); |
| |
| in = new BufferedInputStream(new ByteArrayInputStream(bytes), 12); |
| in.skip(6); |
| in.mark(8); |
| in.skip(7); |
| in.reset(); |
| assertTrue("Wrong bytes 2", in.read() == 6 && in.read() == 7); |
| |
| BufferedInputStream buf = new BufferedInputStream( |
| new ByteArrayInputStream(new byte[] { 0, 1, 2, 3, 4 }), 2); |
| buf.mark(3); |
| bytes = new byte[3]; |
| int result = buf.read(bytes); |
| assertEquals(3, result); |
| assertEquals("Assert 0:", 0, bytes[0]); |
| assertEquals("Assert 1:", 1, bytes[1]); |
| assertEquals("Assert 2:", 2, bytes[2]); |
| assertEquals("Assert 3:", 3, buf.read()); |
| |
| buf = new BufferedInputStream(new ByteArrayInputStream(new byte[] { 0, |
| 1, 2, 3, 4 }), 2); |
| buf.mark(3); |
| bytes = new byte[4]; |
| result = buf.read(bytes); |
| assertEquals(4, result); |
| assertEquals("Assert 4:", 0, bytes[0]); |
| assertEquals("Assert 5:", 1, bytes[1]); |
| assertEquals("Assert 6:", 2, bytes[2]); |
| assertEquals("Assert 7:", 3, bytes[3]); |
| assertEquals("Assert 8:", 4, buf.read()); |
| assertEquals("Assert 9:", -1, buf.read()); |
| |
| buf = new BufferedInputStream(new ByteArrayInputStream(new byte[] { 0, |
| 1, 2, 3, 4 }), 2); |
| buf.mark(Integer.MAX_VALUE); |
| buf.read(); |
| buf.close(); |
| } |
| |
| /** |
| * @tests java.io.BufferedInputStream#markSupported() |
| */ |
| public void test_markSupported() { |
| assertTrue("markSupported returned incorrect value", is.markSupported()); |
| } |
| |
| /** |
| * @tests java.io.BufferedInputStream#read() |
| */ |
| public void test_read() throws IOException { |
| InputStreamReader isr = new InputStreamReader(is); |
| int c = isr.read(); |
| assertTrue("read returned incorrect char", c == fileString.charAt(0)); |
| |
| byte[] bytes = new byte[256]; |
| for (int i = 0; i < 256; i++) { |
| bytes[i] = (byte) i; |
| } |
| InputStream in = new BufferedInputStream( |
| new ByteArrayInputStream(bytes), 12); |
| assertEquals("Wrong initial byte", 0, in.read()); // Fill the |
| // buffer |
| byte[] buf = new byte[14]; |
| in.read(buf, 0, 14); // Read greater than the buffer |
| assertTrue("Wrong block read data", new String(buf, 0, 14) |
| .equals(new String(bytes, 1, 14))); |
| assertEquals("Wrong bytes", 15, in.read()); // Check next byte |
| } |
| |
| /** |
| * @tests java.io.BufferedInputStream#read(byte[], int, int) |
| */ |
| public void test_read$BII_Exception() throws IOException { |
| BufferedInputStream bis = new BufferedInputStream(null); |
| try { |
| bis.read(null, -1, -1); |
| fail("should throw NullPointerException"); |
| } catch (NullPointerException e) { |
| // expected |
| } |
| |
| try { |
| bis.read(new byte[0], -1, -1); |
| fail("should throw IndexOutOfBoundsException"); |
| } catch (IndexOutOfBoundsException e) { |
| // expected |
| } |
| |
| try { |
| bis.read(new byte[0], 1, -1); |
| fail("should throw IndexOutOfBoundsException"); |
| } catch (IndexOutOfBoundsException e) { |
| // expected |
| } |
| |
| try { |
| bis.read(new byte[0], 1, 1); |
| fail("should throw IndexOutOfBoundsException"); |
| } catch (IndexOutOfBoundsException e) { |
| // expected |
| } |
| |
| bis.close(); |
| |
| try { |
| bis.read(null, -1, -1); |
| fail("should throw IOException"); |
| } catch (IOException e) { |
| // expected |
| } |
| } |
| |
| /** |
| * @tests java.io.BufferedInputStream#read(byte[], int, int) |
| */ |
| public void test_read$BII() throws IOException { |
| byte[] buf1 = new byte[100]; |
| 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))); |
| |
| 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; |
| } |
| }); |
| bufin.read(); |
| int result = bufin.read(new byte[2], 0, 2); |
| assertTrue("Incorrect result: " + result, result == 1); |
| } |
| |
| /** |
| * @tests java.io.BufferedInputStream#reset() |
| */ |
| public void test_reset() throws IOException { |
| byte[] buf1 = new byte[10]; |
| byte[] buf2 = new byte[10]; |
| is.mark(2000); |
| is.read(buf1, 0, 10); |
| is.reset(); |
| is.read(buf2, 0, 10); |
| is.reset(); |
| assertTrue("Reset failed", new String(buf1, 0, buf1.length) |
| .equals(new String(buf2, 0, buf2.length))); |
| |
| BufferedInputStream bIn = new BufferedInputStream( |
| new ByteArrayInputStream("1234567890".getBytes())); |
| bIn.mark(10); |
| for (int i = 0; i < 11; i++) { |
| bIn.read(); |
| } |
| bIn.reset(); |
| } |
| |
| /** |
| * @tests java.io.BufferedInputStream#reset() |
| */ |
| public void test_reset_Exception() throws IOException { |
| BufferedInputStream bis = new BufferedInputStream(null); |
| |
| // throws IOException with message "Mark has been invalidated" |
| try { |
| bis.reset(); |
| fail("should throw IOException"); |
| } catch (IOException e) { |
| // expected |
| } |
| |
| // does not throw IOException |
| bis.mark(1); |
| bis.reset(); |
| |
| bis.close(); |
| |
| // throws IOException with message "stream is closed" |
| try { |
| bis.reset(); |
| fail("should throw IOException"); |
| } catch (IOException e) { |
| // expected |
| } |
| } |
| |
| /** |
| * @tests java.io.BufferedInputStream#reset() |
| */ |
| public void test_reset_scenario1() throws IOException { |
| byte[] input = "12345678900".getBytes(); |
| BufferedInputStream buffis = new BufferedInputStream( |
| new ByteArrayInputStream(input)); |
| buffis.read(); |
| buffis.mark(5); |
| buffis.skip(5); |
| buffis.reset(); |
| } |
| |
| /** |
| * @tests java.io.BufferedInputStream#reset() |
| */ |
| public void test_reset_scenario2() throws IOException { |
| byte[] input = "12345678900".getBytes(); |
| BufferedInputStream buffis = new BufferedInputStream( |
| new ByteArrayInputStream(input)); |
| buffis.mark(5); |
| buffis.skip(6); |
| buffis.reset(); |
| } |
| |
| /** |
| * @tests java.io.BufferedInputStream#skip(long) |
| */ |
| public void test_skipJ() throws IOException { |
| byte[] buf1 = new byte[10]; |
| 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))); |
| |
| // regression for HARMONY-667 |
| try { |
| BufferedInputStream buf = new BufferedInputStream(null, 5); |
| buf.skip(10); |
| fail("Should throw IOException"); |
| } catch (IOException e) { |
| // Expected |
| } |
| } |
| |
| /** |
| * @tests java.io.BufferedInputStream#skip(long) |
| */ |
| public void test_skip_NullInputStream() throws IOException { |
| BufferedInputStream buf = new BufferedInputStream(null, 5); |
| assertEquals(0, buf.skip(0)); |
| } |
| |
| /** |
| * Sets up the fixture, for example, open a network connection. This method |
| * is called before a test is executed. |
| */ |
| @Override |
| protected void setUp() throws IOException { |
| fileName = System.getProperty("user.dir"); |
| 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); |
| } |
| |
| /** |
| * Tears down the fixture, for example, close a network connection. This |
| * method is called after a test is executed. |
| */ |
| @Override |
| protected void tearDown() { |
| try { |
| is.close(); |
| } catch (Exception e) { |
| } |
| try { |
| File f = new File(fileName); |
| f.delete(); |
| } catch (Exception e) { |
| } |
| } |
| } |