| /* |
| * 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.BufferedReader; |
| import java.io.ByteArrayInputStream; |
| import java.io.CharArrayReader; |
| import java.io.IOException; |
| import java.io.InputStreamReader; |
| import java.io.PipedReader; |
| import java.io.Reader; |
| import java.io.StringReader; |
| |
| import junit.framework.TestCase; |
| import tests.support.Support_StringReader; |
| |
| public class BufferedReaderTest extends TestCase { |
| |
| BufferedReader br; |
| |
| String testString = "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"; |
| |
| /** |
| * The spec says that BufferedReader.readLine() considers only "\r", "\n" |
| * and "\r\n" to be line separators. We must not permit additional separator |
| * characters. |
| */ |
| public void test_readLine_IgnoresEbcdic85Characters() throws IOException { |
| assertLines("A\u0085B", "A\u0085B"); |
| } |
| |
| public void test_readLine_Separators() throws IOException { |
| assertLines("A\nB\nC", "A", "B", "C"); |
| assertLines("A\rB\rC", "A", "B", "C"); |
| assertLines("A\r\nB\r\nC", "A", "B", "C"); |
| assertLines("A\n\rB\n\rC", "A", "", "B", "", "C"); |
| assertLines("A\n\nB\n\nC", "A", "", "B", "", "C"); |
| assertLines("A\r\rB\r\rC", "A", "", "B", "", "C"); |
| assertLines("A\n\n", "A", ""); |
| assertLines("A\n\r", "A", ""); |
| assertLines("A\r\r", "A", ""); |
| assertLines("A\r\n", "A"); |
| assertLines("A\r\n\r\n", "A", ""); |
| } |
| |
| private void assertLines(String in, String... lines) throws IOException { |
| BufferedReader bufferedReader |
| = new BufferedReader(new Support_StringReader(in)); |
| for (String line : lines) { |
| assertEquals(line, bufferedReader.readLine()); |
| } |
| assertNull(bufferedReader.readLine()); |
| } |
| |
| /** |
| * @tests java.io.BufferedReader#BufferedReader(java.io.Reader) |
| */ |
| public void test_ConstructorLjava_io_Reader() { |
| // Test for method java.io.BufferedReader(java.io.Reader) |
| assertTrue("Used in tests", true); |
| } |
| |
| /** |
| * @tests java.io.BufferedReader#BufferedReader(java.io.Reader, int) |
| */ |
| public void test_ConstructorLjava_io_ReaderI() { |
| // Test for method java.io.BufferedReader(java.io.Reader, int) |
| assertTrue("Used in tests", true); |
| } |
| |
| /** |
| * @tests java.io.BufferedReader#close() |
| */ |
| public void test_close() { |
| // Test for method void java.io.BufferedReader.close() |
| try { |
| br = new BufferedReader(new Support_StringReader(testString)); |
| br.close(); |
| br.read(); |
| fail("Read on closed stream"); |
| } catch (IOException x) { |
| return; |
| } |
| } |
| |
| /** |
| * @tests java.io.BufferedReader#mark(int) |
| */ |
| public void test_markI() throws IOException { |
| // Test for method void java.io.BufferedReader.mark(int) |
| char[] buf = null; |
| br = new BufferedReader(new Support_StringReader(testString)); |
| br.skip(500); |
| br.mark(1000); |
| br.skip(250); |
| br.reset(); |
| buf = new char[testString.length()]; |
| br.read(buf, 0, 500); |
| assertTrue("Failed to set mark properly", testString.substring(500, |
| 1000).equals(new String(buf, 0, 500))); |
| |
| try { |
| br = new BufferedReader(new Support_StringReader(testString), 800); |
| br.skip(500); |
| br.mark(250); |
| br.read(buf, 0, 1000); |
| br.reset(); |
| fail("Failed to invalidate mark properly"); |
| } catch (IOException x) { |
| // Expected |
| } |
| |
| char[] chars = new char[256]; |
| for (int i = 0; i < 256; i++) |
| chars[i] = (char) i; |
| Reader in = new BufferedReader(new Support_StringReader(new String( |
| chars)), 12); |
| |
| in.skip(6); |
| in.mark(14); |
| in.read(new char[14], 0, 14); |
| in.reset(); |
| assertTrue("Wrong chars", in.read() == (char) 6 |
| && in.read() == (char) 7); |
| |
| in = new BufferedReader(new Support_StringReader(new String(chars)), 12); |
| in.skip(6); |
| in.mark(8); |
| in.skip(7); |
| in.reset(); |
| assertTrue("Wrong chars 2", in.read() == (char) 6 |
| && in.read() == (char) 7); |
| |
| BufferedReader br = new BufferedReader(new StringReader("01234"), 2); |
| br.mark(3); |
| char[] carray = new char[3]; |
| int result = br.read(carray); |
| assertEquals(3, result); |
| assertEquals("Assert 0:", '0', carray[0]); |
| assertEquals("Assert 1:", '1', carray[1]); |
| assertEquals("Assert 2:", '2', carray[2]); |
| assertEquals("Assert 3:", '3', br.read()); |
| |
| br = new BufferedReader(new StringReader("01234"), 2); |
| br.mark(3); |
| carray = new char[4]; |
| result = br.read(carray); |
| assertEquals("Assert 4:", 4, result); |
| assertEquals("Assert 5:", '0', carray[0]); |
| assertEquals("Assert 6:", '1', carray[1]); |
| assertEquals("Assert 7:", '2', carray[2]); |
| assertEquals("Assert 8:", '3', carray[3]); |
| assertEquals("Assert 9:", '4', br.read()); |
| assertEquals("Assert 10:", -1, br.read()); |
| |
| BufferedReader reader = new BufferedReader(new StringReader("01234")); |
| reader.mark(Integer.MAX_VALUE); |
| reader.read(); |
| reader.close(); |
| } |
| |
| /** |
| * @tests java.io.BufferedReader#markSupported() |
| */ |
| public void test_markSupported() { |
| // Test for method boolean java.io.BufferedReader.markSupported() |
| br = new BufferedReader(new Support_StringReader(testString)); |
| assertTrue("markSupported returned false", br.markSupported()); |
| } |
| |
| /** |
| * @tests java.io.BufferedReader#read() |
| */ |
| public void test_read() throws IOException { |
| // Test for method int java.io.BufferedReader.read() |
| try { |
| br = new BufferedReader(new Support_StringReader(testString)); |
| int r = br.read(); |
| assertTrue("Char read improperly", testString.charAt(0) == r); |
| br = new BufferedReader(new Support_StringReader(new String( |
| new char[] { '\u8765' }))); |
| assertTrue("Wrong double byte character", br.read() == '\u8765'); |
| } catch (java.io.IOException e) { |
| fail("Exception during read test"); |
| } |
| |
| char[] chars = new char[256]; |
| for (int i = 0; i < 256; i++) |
| chars[i] = (char) i; |
| Reader in = new BufferedReader(new Support_StringReader(new String( |
| chars)), 12); |
| try { |
| assertEquals("Wrong initial char", 0, in.read()); // Fill the |
| // buffer |
| char[] buf = new char[14]; |
| in.read(buf, 0, 14); // Read greater than the buffer |
| assertTrue("Wrong block read data", new String(buf) |
| .equals(new String(chars, 1, 14))); |
| assertEquals("Wrong chars", 15, in.read()); // Check next byte |
| } catch (IOException e) { |
| fail("Exception during read test 2:" + e); |
| } |
| |
| // regression test for HARMONY-841 |
| assertTrue(new BufferedReader(new CharArrayReader(new char[5], 1, 0), 2).read() == -1); |
| } |
| |
| /** |
| * @tests java.io.BufferedReader#read(char[], int, int) |
| */ |
| public void test_read$CII() throws Exception{ |
| char[] ca = new char[2]; |
| BufferedReader toRet = new BufferedReader(new InputStreamReader( |
| new ByteArrayInputStream(new byte[0]))); |
| |
| /* Null buffer should throw NPE even when len == 0 */ |
| try { |
| toRet.read(null, 1, 0); |
| fail("null buffer reading zero bytes should throw NPE"); |
| } catch (NullPointerException e) { |
| //expected |
| } |
| |
| try { |
| toRet.close(); |
| } catch (IOException e) { |
| fail("unexpected 1: " + e); |
| } |
| |
| try { |
| toRet.read(null, 1, 0); |
| fail("null buffer reading zero bytes on closed stream should throw IOException"); |
| } catch (IOException e) { |
| //expected |
| } |
| |
| /* Closed reader should throw IOException reading zero bytes */ |
| try { |
| toRet.read(ca, 0, 0); |
| fail("Reading zero bytes on a closed reader should not work"); |
| } catch (IOException e) { |
| // expected |
| } |
| |
| /* |
| * Closed reader should throw IOException in preference to index out of |
| * bounds |
| */ |
| try { |
| // Read should throw IOException before |
| // ArrayIndexOutOfBoundException |
| toRet.read(ca, 1, 5); |
| fail("IOException should have been thrown"); |
| } catch (IOException e) { |
| // expected |
| } |
| |
| // Test to ensure that a drained stream returns 0 at EOF |
| toRet = new BufferedReader(new InputStreamReader( |
| new ByteArrayInputStream(new byte[2]))); |
| try { |
| assertEquals("Emptying the reader should return two bytes", 2, |
| toRet.read(ca, 0, 2)); |
| assertEquals("EOF on a reader should be -1", -1, toRet.read(ca, 0, |
| 2)); |
| assertEquals("Reading zero bytes at EOF should work", 0, toRet |
| .read(ca, 0, 0)); |
| } catch (IOException ex) { |
| fail("Unexpected IOException : " + ex.getLocalizedMessage()); |
| } |
| |
| // Test for method int java.io.BufferedReader.read(char [], int, int) |
| try { |
| char[] buf = new char[testString.length()]; |
| br = new BufferedReader(new Support_StringReader(testString)); |
| br.read(buf, 50, 500); |
| assertTrue("Chars read improperly", new String(buf, 50, 500) |
| .equals(testString.substring(0, 500))); |
| } catch (java.io.IOException e) { |
| fail("Exception during read test"); |
| } |
| |
| BufferedReader bufin = new BufferedReader(new Reader() { |
| int size = 2, pos = 0; |
| |
| char[] contents = new char[size]; |
| |
| public int read() throws IOException { |
| if (pos >= size) |
| throw new IOException("Read past end of data"); |
| return contents[pos++]; |
| } |
| |
| public int read(char[] buf, int off, int len) throws IOException { |
| if (pos >= size) |
| throw new IOException("Read past end of data"); |
| int toRead = len; |
| if (toRead > (size - pos)) |
| toRead = size - pos; |
| System.arraycopy(contents, pos, buf, off, toRead); |
| pos += toRead; |
| return toRead; |
| } |
| |
| public boolean ready() throws IOException { |
| return size - pos > 0; |
| } |
| |
| public void close() throws IOException { |
| } |
| }); |
| try { |
| bufin.read(); |
| int result = bufin.read(new char[2], 0, 2); |
| assertTrue("Incorrect result: " + result, result == 1); |
| } catch (IOException e) { |
| fail("Unexpected: " + e); |
| } |
| |
| //regression for HARMONY-831 |
| try{ |
| new BufferedReader(new PipedReader(), 9).read(new char[] {}, 7, 0); |
| fail("should throw IndexOutOfBoundsException"); |
| }catch(IndexOutOfBoundsException e){ |
| } |
| |
| // Regression for HARMONY-54 |
| char[] ch = {}; |
| BufferedReader reader = new BufferedReader(new CharArrayReader(ch)); |
| try { |
| // Check exception thrown when the reader is open. |
| reader.read(null, 1, 0); |
| fail("Assert 0: NullPointerException expected"); |
| } catch (NullPointerException e) { |
| // Expected |
| } |
| |
| // Now check IOException is thrown in preference to |
| // NullPointerexception when the reader is closed. |
| reader.close(); |
| try { |
| reader.read(null, 1, 0); |
| fail("Assert 1: IOException expected"); |
| } catch (IOException e) { |
| // Expected |
| } |
| |
| try { |
| // And check that the IOException is thrown before |
| // ArrayIndexOutOfBoundException |
| reader.read(ch, 0, 42); |
| fail("Assert 2: IOException expected"); |
| } catch (IOException e) { |
| // expected |
| } |
| } |
| |
| /** |
| * @tests java.io.BufferedReader#read(char[], int, int) |
| */ |
| public void test_read_$CII_Exception() throws IOException { |
| br = new BufferedReader(new Support_StringReader(testString)); |
| char[] nullCharArray = null; |
| char[] charArray = testString.toCharArray(); |
| |
| try { |
| br.read(nullCharArray, -1, -1); |
| fail("should throw IndexOutOfBoundsException"); |
| } catch (IndexOutOfBoundsException e) { |
| // expected |
| } |
| |
| try { |
| br.read(nullCharArray, -1, 0); |
| fail("should throw IndexOutOfBoundsException"); |
| } catch (IndexOutOfBoundsException e) { |
| // expected |
| } |
| |
| try { |
| br.read(nullCharArray, 0, -1); |
| fail("should throw NullPointerException"); |
| } catch (NullPointerException e) { |
| // expected |
| } |
| |
| try { |
| br.read(nullCharArray, 0, 0); |
| fail("should throw NullPointerException"); |
| } catch (NullPointerException e) { |
| // expected |
| } |
| |
| try { |
| br.read(nullCharArray, 0, 1); |
| fail("should throw NullPointerException"); |
| } catch (NullPointerException e) { |
| // expected |
| } |
| |
| try { |
| br.read(charArray, -1, -1); |
| fail("should throw IndexOutOfBoundsException"); |
| } catch (IndexOutOfBoundsException e) { |
| // expected |
| } |
| |
| try { |
| br.read(charArray, -1, 0); |
| fail("should throw IndexOutOfBoundsException"); |
| } catch (IndexOutOfBoundsException e) { |
| // expected |
| } |
| |
| br.read(charArray, 0, 0); |
| br.read(charArray, 0, charArray.length); |
| br.read(charArray, charArray.length, 0); |
| |
| try { |
| br.read(charArray, charArray.length + 1, 0); |
| fail("should throw IndexOutOfBoundsException"); |
| } catch (IndexOutOfBoundsException e) { |
| //expected |
| } |
| |
| try { |
| br.read(charArray, charArray.length + 1, 1); |
| fail("should throw IndexOutOfBoundsException"); |
| } catch (IndexOutOfBoundsException e) { |
| //expected |
| } |
| |
| br.close(); |
| |
| try { |
| br.read(nullCharArray, -1, -1); |
| fail("should throw IOException"); |
| } catch (IOException e) { |
| // expected |
| } |
| |
| try { |
| br.read(charArray, -1, 0); |
| fail("should throw IOException"); |
| } catch (IOException e) { |
| // expected |
| } |
| |
| try { |
| br.read(charArray, 0, -1); |
| fail("should throw IOException"); |
| } catch (IOException e) { |
| // expected |
| } |
| } |
| /** |
| * @tests java.io.BufferedReader#readLine() |
| */ |
| public void test_readLine() { |
| // Test for method java.lang.String java.io.BufferedReader.readLine() |
| try { |
| br = new BufferedReader(new Support_StringReader(testString)); |
| String r = br.readLine(); |
| assertEquals("readLine returned incorrect string", "Test_All_Tests", r |
| ); |
| } catch (java.io.IOException e) { |
| fail("Exception during readLine test"); |
| } |
| } |
| |
| /** |
| * @tests java.io.BufferedReader#ready() |
| */ |
| public void test_ready() { |
| // Test for method boolean java.io.BufferedReader.ready() |
| try { |
| br = new BufferedReader(new Support_StringReader(testString)); |
| assertTrue("ready returned false", br.ready()); |
| } catch (java.io.IOException e) { |
| fail("Exception during ready test" + e.toString()); |
| } |
| } |
| |
| /** |
| * @tests java.io.BufferedReader#reset() |
| */ |
| public void test_reset() { |
| // Test for method void java.io.BufferedReader.reset() |
| try { |
| br = new BufferedReader(new Support_StringReader(testString)); |
| br.skip(500); |
| br.mark(900); |
| br.skip(500); |
| br.reset(); |
| char[] buf = new char[testString.length()]; |
| br.read(buf, 0, 500); |
| assertTrue("Failed to reset properly", testString.substring(500, |
| 1000).equals(new String(buf, 0, 500))); |
| } catch (java.io.IOException e) { |
| fail("Exception during reset test"); |
| } |
| try { |
| br = new BufferedReader(new Support_StringReader(testString)); |
| br.skip(500); |
| br.reset(); |
| fail("Reset succeeded on unmarked stream"); |
| } catch (IOException x) { |
| return; |
| |
| } |
| } |
| |
| public void test_reset_IOException() throws Exception { |
| int[] expected = new int[] { '1', '2', '3', '4', '5', '6', '7', '8', |
| '9', '0', -1 }; |
| br = new BufferedReader(new Support_StringReader("1234567890"), 9); |
| br.mark(9); |
| for (int i = 0; i < 11; i++) { |
| assertEquals(expected[i], br.read()); |
| } |
| try { |
| br.reset(); |
| fail("should throw IOException"); |
| } catch (IOException e) { |
| // Expected |
| } |
| for (int i = 0; i < 11; i++) { |
| assertEquals(-1, br.read()); |
| } |
| |
| br = new BufferedReader(new Support_StringReader("1234567890")); |
| br.mark(10); |
| for (int i = 0; i < 10; i++) { |
| assertEquals(expected[i], br.read()); |
| } |
| br.reset(); |
| for (int i = 0; i < 11; i++) { |
| assertEquals(expected[i], br.read()); |
| } |
| } |
| |
| /** |
| * @tests java.io.BufferedReader#skip(long) |
| */ |
| public void test_skipJ() { |
| // Test for method long java.io.BufferedReader.skip(long) |
| try { |
| br = new BufferedReader(new Support_StringReader(testString)); |
| br.skip(500); |
| char[] buf = new char[testString.length()]; |
| br.read(buf, 0, 500); |
| assertTrue("Failed to set skip properly", testString.substring(500, |
| 1000).equals(new String(buf, 0, 500))); |
| } catch (java.io.IOException e) { |
| fail("Exception during skip test"); |
| } |
| |
| } |
| |
| /** |
| * Sets up the fixture, for example, open a network connection. This method |
| * is called before a test is executed. |
| */ |
| protected void setUp() { |
| } |
| |
| /** |
| * Tears down the fixture, for example, close a network connection. This |
| * method is called after a test is executed. |
| */ |
| protected void tearDown() { |
| try { |
| br.close(); |
| } catch (Exception e) { |
| } |
| } |
| } |