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TestRandomAccessStream.javaAPI DocphoneME MR2 API (J2ME)3641Wed May 02 18:00:14 BST 2007com.sun.midp.io.j2me.storage

TestRandomAccessStream

public class TestRandomAccessStream extends TestCase
This test is designed to verify the com.sun.midp.io.j2me.storage.RandomAccessStream API.

Fields Summary
RandomAccessStream
ras
Constructors Summary
Methods Summary
voidcleanUp()

        File file = new File();
	try {
            file.delete("afile");
        } catch(IOException e) {
        }
public voidrunTests()


      declare("RandomAccessStreamCreated");
      ras = new RandomAccessStream();

      boolean exceptionThrown = false;
      try {
          ras.getSizeOf();
      } catch (IOException e) {
	  exceptionThrown = true;
      }
      assertTrue(exceptionThrown); 

      declare("GetSizeOfEmpty");
      exceptionThrown = false;
      try {
          ras.connect("afile", Connector.READ_WRITE);
          assertEquals(0, ras.getSizeOf());
      } catch(IOException e) {
          exceptionThrown = true;
      }
      assertTrue(!exceptionThrown);

      // Need revisit:
      // IOException should be thrown at the attempt to set
      // position beyond the file size
      // Uncomment when fixed
      //
      // declare("SetPositionOnEmpty");
      // exceptionThrown = false;
      // try {
      //     ras.setPosition(8);
      // } catch(IOException e) {
      //     exceptionThrown = true;
      // }
      // assertTrue(exceptionThrown);

      // Need revisit:
      // IOException should be thrown at the attempt to truncate
      // an empty file
      // Uncomment when fixed
      // declare("TruncateEmpty");
      // exceptionThrown = false;
      // try {
      //     ras.truncate(8);
      // } catch(IOException e) {
      //     exceptionThrown = true;
      // }
      // assertTrue(exceptionThrown);


      declare("TestReadAndWrite");
      exceptionThrown = false;
      try {
          byte bytes[] = new byte[100];
          for (int i = 0; i < 100; i++) {
              bytes[i] = (byte)i;
          }
          int bytesReadWritten = ras.writeBytes(bytes, 0, 100);
          assertEquals(100, bytesReadWritten);
          ras.commitWrite();

          assertEquals(100, ras.getSizeOf()); 

          ras.setPosition(0);
          bytesReadWritten = ras.readBytes(bytes, 0, 100);
          assertEquals(100, bytesReadWritten);
          for (int i = 0; i < 100; i++) {
              assertEquals(i, bytes[i]);
          }
      } catch (IOException e) {
          exceptionThrown = true;
      }
      assertTrue(!exceptionThrown);

      cleanUp();