xref: /libcore/luni/src/test/java/libcore/java/io/OldFileInputStreamTest.java

/*
 *  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 libcore.java.io;

import java.io.File;
import java.io.FileDescriptor;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.nio.channels.FileChannel;
import junit.framework.TestCase;
import tests.support.Support_PlatformFile;

public class OldFileInputStreamTest extends TestCase {

    public String fileName;
    private FileInputStream is;
    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_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_ConstructorLjava_io_File() {
        // Test for method FileInputStream(File)
        try {
            File f = new File(fileName);
            is = new FileInputStream(f);
            is.close();
        } catch (Exception e) {
            fail("Failed to create FileInputStream : " + e.getMessage());
        }
        File f2 = new File("ImprobableFile.42");
        try {
            is = new FileInputStream(f2);
            is.close();
            f2.delete();
            fail("FileNotFoundException expected.");
        } catch (FileNotFoundException e) {
            // Expected.
        } catch (IOException e) {
            fail("Unexpected IOException: " + e.getMessage());
        }
    }

    public void test_ConstructorLjava_io_FileDescriptor() {
        try {
            FileInputStream fis = new FileInputStream((FileDescriptor) null);
            fis.close();
            fail("NullPointerException expected.");
        } catch (NullPointerException e) {
            // Expected.
        } catch (IOException e) {
            fail("Unexpected IOException: " + e.getMessage());
        }
    }

    public void test_ConstructorLjava_lang_String() {
        // Test for method FileInputStream(java.lang.String)
        try {
            is = new FileInputStream(fileName);
            is.close();
        } catch (Exception e) {
            fail("Failed to create FileInputStream : " + e.getMessage());
        }
        try {
            is = new FileInputStream("ImprobableFile.42");
            is.close();
            new File("ImprobableFile.42").delete();
            fail("FileNotFoundException expected.");
        } catch (FileNotFoundException e) {
            // Expected.
        } catch (IOException e) {
            fail("Unexpected IOException: " + e.getMessage());
        }
    }

    public void test_available() throws IOException {
        is = new FileInputStream(fileName);
        assertEquals("Test 1: Returned incorrect number of available bytes;",
                fileString.length(), is.available());
        is.close();
        try {
            is.available();
            fail("Test 2: IOException expected.");
        } catch (IOException e) {
            // Expected.
        }
    }

    public void test_getChannel() {
        // Test for method FileChannel FileInputStream.getChannel()
        FileChannel channel;
        byte[] buffer = new byte[100];
        byte[] stringBytes;
        final int offset = 5;
        boolean equal = true;

        try {
            FileInputStream fis = new FileInputStream(fileName);
            channel = fis.getChannel();
            assertNotNull(channel);
            assertTrue("Channel is closed.", channel.isOpen());

            // Check that the channel is associated with the input stream.
            channel.position(offset);
            fis.read(buffer, 0, 10);
            stringBytes = fileString.getBytes();
            for (int i = 0; i < 10; i++) {
                equal &= (buffer[i] == stringBytes[i + offset]);
            }
            assertTrue("Channel is not associated with this stream.", equal);

            fis.close();
            assertFalse("Channel has not been closed.", channel.isOpen());
        } catch (FileNotFoundException e) {
            fail("Could not find : " + fileName);
        }

        catch (IOException e) {
            fail("Exception during test : " + e.getMessage());
        }
    }

    public void test_read() throws IOException {
        is = new FileInputStream(fileName);
        int c = is.read();
        assertEquals("Test 1: Read returned incorrect char;",
                fileString.charAt(0), c);

        is.close();
        try {
            is.read();
            fail("Test 2: IOException expected.");
        } catch (IOException e) {
            // Expected.
        }
    }

    public void test_read$B() throws IOException {
        byte[] buf1 = new byte[100];
        is = new FileInputStream(fileName);
        is.skip(3000);
        is.read(buf1);
        is.close();
        assertTrue("Test 1: Failed to read correct data.",
                new String(buf1, 0, buf1.length).equals(
                        fileString.substring(3000, 3100)));

        is.close();
        try {
            is.read(buf1);
            fail("Test 2: IOException expected.");
        } catch (IOException e) {
            // Expected.
        }
    }

    public void test_skipJ() throws IOException {
        byte[] buf1 = new byte[10];
        is = new FileInputStream(fileName);
        is.skip(1000);
        is.read(buf1, 0, buf1.length);
        assertTrue("Test 1: Failed to skip to correct position.",
                new String(buf1, 0, buf1.length).equals(
                        fileString.substring(1000, 1010)));

        is.close();
        try {
            is.read();
            fail("Test 2: IOException expected.");
        } catch (IOException e) {
            // Expected.
        }
    }

    protected void setUp() throws Exception {
        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");
        java.io.OutputStream fos = new FileOutputStream(fileName);
        fos.write(fileString.getBytes());
        fos.close();
    }

    protected void tearDown() throws Exception {
        if (is != null) {
            is.close();
        }
        new File(fileName).delete();
    }
}