| /* |
| * 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.ByteArrayInputStream; |
| import java.io.IOException; |
| import java.io.PushbackInputStream; |
| import java.io.UnsupportedEncodingException; |
| |
| public class PushbackInputStreamTest extends junit.framework.TestCase { |
| |
| PushbackInputStream pis; |
| |
| public String fileString = "Test_All_Tests\nTest_java_io_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"; |
| |
| public void test_reset() { |
| PushbackInputStream pb = new PushbackInputStream( |
| new ByteArrayInputStream(new byte[] { 0 }), 2); |
| try { |
| pb.reset(); |
| fail("Should throw IOException"); |
| } catch (IOException e) { |
| // expected |
| } |
| } |
| |
| public void test_mark() { |
| PushbackInputStream pb = new PushbackInputStream( |
| new ByteArrayInputStream(new byte[] { 0 }), 2); |
| pb.mark(Integer.MAX_VALUE); |
| pb.mark(0); |
| pb.mark(-1); |
| pb.mark(Integer.MIN_VALUE); |
| } |
| |
| |
| /** |
| * @tests java.io.PushbackInputStream#PushbackInputStream(java.io.InputStream) |
| */ |
| public void test_ConstructorLjava_io_InputStream() { |
| try { |
| PushbackInputStream str = new PushbackInputStream(null); |
| str.read(); |
| fail("Expected IOException"); |
| } catch (IOException e) { |
| // Expected |
| } |
| |
| try { |
| pis = new PushbackInputStream(new ByteArrayInputStream("Hello" |
| .getBytes())); |
| pis.unread("He".getBytes()); |
| fail("Failed to throw exception on unread when buffer full"); |
| } catch (IOException e) { |
| // Expected |
| } |
| } |
| |
| /** |
| * @tests java.io.PushbackInputStream#PushbackInputStream(java.io.InputStream, |
| * int) |
| */ |
| public void test_ConstructorLjava_io_InputStreamI() { |
| // Test for method java.io.PushbackInputStream(java.io.InputStream, int) |
| try { |
| pis = new PushbackInputStream(new ByteArrayInputStream("Hello" |
| .getBytes()), 5); |
| pis.unread("Hellos".getBytes()); |
| } catch (IOException e) { |
| // Correct |
| // Pushback buffer should be full |
| return; |
| |
| } |
| fail("Failed to throw exception on unread when buffer full"); |
| } |
| |
| /* |
| * @tests java.io.PushBackInputStream(InputStream, int) |
| */ |
| public void test_ConstructorLjava_io_InputStreamL() { |
| try { |
| PushbackInputStream str = new PushbackInputStream(null, 1); |
| str.read(); |
| fail("Expected IOException"); |
| } catch (IOException e) { |
| // Expected |
| } |
| } |
| |
| /** |
| * @tests java.io.PushbackInputStream#available() |
| */ |
| public void test_available() { |
| // Test for method int java.io.PushbackInputStream.available() |
| try { |
| assertTrue("Available returned incorrect number of bytes", pis |
| .available() == fileString.getBytes().length); |
| } catch (IOException e) { |
| fail("Exception during available test: " + e.toString()); |
| } |
| } |
| |
| /** |
| * @tests java.io.PushbackInputStream#markSupported() |
| */ |
| public void test_markSupported() { |
| // Test for method boolean java.io.PushbackInputStream.markSupported() |
| assertTrue("markSupported returned true", !pis.markSupported()); |
| } |
| |
| /** |
| * @tests java.io.PushbackInputStream#read() |
| */ |
| public void test_read() { |
| // Test for method int java.io.PushbackInputStream.read() |
| try { |
| assertTrue("Incorrect byte read", pis.read() == fileString |
| .getBytes("UTF-8")[0]); |
| } catch (IOException e) { |
| fail("Exception during read test : " + e.getMessage()); |
| } |
| } |
| |
| /** |
| * @tests java.io.PushbackInputStream#read(byte[], int, int) |
| */ |
| public void test_read$BII() { |
| // Test for method int java.io.PushbackInputStream.read(byte [], int, |
| // int) |
| try { |
| byte[] buf = new byte[100]; |
| pis.read(buf, 0, buf.length); |
| assertTrue("Incorrect bytes read", new String(buf, "UTF-8") |
| .equals(fileString.substring(0, 100))); |
| } catch (IOException e) { |
| fail("Exception during read test : " + e.getMessage()); |
| } |
| } |
| |
| /** |
| * @tests java.io.PushbackInputStream#skip(long) |
| */ |
| public void test_skipJ() throws Exception { |
| // Test for method long java.io.PushbackInputStream.skip(long) |
| byte[] buf = new byte[50]; |
| pis.skip(50); |
| pis.read(buf, 0, buf.length); |
| assertTrue("a) Incorrect bytes read", new String(buf, "UTF-8") |
| .equals(fileString.substring(50, 100))); |
| pis.unread(buf); |
| pis.skip(25); |
| byte[] buf2 = new byte[25]; |
| pis.read(buf2, 0, buf2.length); |
| assertTrue("b) Incorrect bytes read", new String(buf2, "UTF-8") |
| .equals(fileString.substring(75, 100))); |
| } |
| |
| /** |
| * @tests java.io.PushbackInputStream#unread(byte[]) |
| */ |
| public void test_unread$B() { |
| // Test for method void java.io.PushbackInputStream.unread(byte []) |
| try { |
| byte[] buf = new byte[100]; |
| pis.read(buf, 0, buf.length); |
| assertTrue("Incorrect bytes read", new String(buf, "UTF-8") |
| .equals(fileString.substring(0, 100))); |
| pis.unread(buf); |
| pis.read(buf, 0, 50); |
| assertTrue("Failed to unread bytes", new String(buf, 0, 50, "UTF-8") |
| .equals(fileString.substring(0, 50))); |
| } catch (IOException e) { |
| fail("IOException during unread test : " + e.getMessage()); |
| } |
| } |
| |
| /** |
| * @tests java.io.PushbackInputStream#unread(byte[], int, int) |
| */ |
| public void test_unread$BII() throws IOException { |
| // Test for method void java.io.PushbackInputStream.unread(byte [], int, |
| // int) |
| byte[] buf = new byte[100]; |
| pis.read(buf, 0, buf.length); |
| assertTrue("Incorrect bytes read", new String(buf, "UTF-8") |
| .equals(fileString.substring(0, 100))); |
| pis.unread(buf, 50, 50); |
| pis.read(buf, 0, 50); |
| assertTrue("Failed to unread bytes", new String(buf, 0, 50, "UTF-8") |
| .equals(fileString.substring(50, 100))); |
| |
| // Regression for HARMONY-49 |
| try { |
| PushbackInputStream pb = new PushbackInputStream( |
| new ByteArrayInputStream(new byte[] { 0 }), 2); |
| pb.unread(new byte[1], 0, 5); |
| fail("Assert 0: should throw IOE"); |
| } catch (IOException e) { |
| // expected |
| } |
| } |
| |
| /** |
| * @tests java.io.PushbackInputStream#unread(int) |
| */ |
| public void test_unreadI() { |
| // Test for method void java.io.PushbackInputStream.unread(int) |
| try { |
| int x; |
| assertTrue("Incorrect byte read", (x = pis.read()) == fileString |
| .getBytes("UTF-8")[0]); |
| pis.unread(x); |
| assertTrue("Failed to unread", pis.read() == x); |
| } catch (IOException e) { |
| fail("IOException during read test : " + e.getMessage()); |
| } |
| } |
| |
| /** |
| * Sets up the fixture, for example, open a network connection. This method |
| * is called before a test is executed. |
| */ |
| protected void setUp() throws UnsupportedEncodingException { |
| |
| pis = new PushbackInputStream(new ByteArrayInputStream(fileString |
| .getBytes("UTF-8")), 65535); |
| } |
| |
| /** |
| * Tears down the fixture, for example, close a network connection. This |
| * method is called after a test is executed. |
| */ |
| protected void tearDown() { |
| try { |
| pis.close(); |
| } catch (IOException e) { |
| fail("IOException during tearDown : " + e.getMessage()); |
| } |
| } |
| } |
