Examples with ByteBuffer java.nio.ByteBuffer used on opensource projects

Example 61 with ByteBuffer

use of java.nio.ByteBuffer in project bazel by bazelbuild.

the class CentralDirectoryTest method testViewOf.

/**
   * Test of viewOf method, of class CentralDirectory.
   */
@Test
public void testViewOf() {
    ByteBuffer buffer = ByteBuffer.allocate(100).order(ByteOrder.LITTLE_ENDIAN);
    for (int i = 0; i < 100; i++) {
        buffer.put((byte) i);
    }
    buffer.position(20);
    buffer.limit(90);
    CentralDirectory view = CentralDirectory.viewOf(buffer);
    int expPos = 0;
    int expLimit = 90;
    // expect the buffer to have been reset to 0 (CentralDirectory does NOT slice).
    assertEquals("View not at position 0", expPos, view.buffer.position());
    assertEquals("Buffer not at position 0", expPos, buffer.position());
    assertEquals("Buffer limit changed", expLimit, view.buffer.limit());
    assertEquals("Buffer limit changed", expLimit, buffer.limit());
}

Example 62 with ByteBuffer

use of java.nio.ByteBuffer in project bazel by bazelbuild.

the class DirectoryEntryTest method testCopy.

/**
   * Test of copy method, of class DirectoryEntry.
   */
@Test
public void testCopy() {
    String filename = "pkg/foo.class";
    byte[] extraData = {};
    String comment = "always comment!";
    ByteBuffer buffer = ByteBuffer.allocate(100).order(ByteOrder.LITTLE_ENDIAN);
    DirectoryEntry view = DirectoryEntry.allocate(filename, extraData, comment);
    view.copy(buffer);
    int expSize = view.getSize();
    assertEquals("buffer not advanced as expected", expSize, buffer.position());
    buffer.position(0);
    DirectoryEntry clone = DirectoryEntry.viewOf(buffer);
    assertEquals("Fail to copy mark", view.get(CENSIG), clone.get(CENSIG));
    assertEquals("Fail to copy comment", view.getFilename(), clone.getFilename());
    Assert.assertArrayEquals("Fail to copy comment", view.getExtraData(), clone.getExtraData());
    assertEquals("Fail to copy comment", view.getComment(), clone.getComment());
}

Example 63 with ByteBuffer

use of java.nio.ByteBuffer in project bazel by bazelbuild.

the class DirectoryEntryTest method testView_4Args.

/**
   * Test of view method, of class DirectoryEntry.
   */
@Test
public void testView_4Args() {
    ByteBuffer buffer = ByteBuffer.allocate(100).order(ByteOrder.LITTLE_ENDIAN);
    for (int i = 0; i < 100; i++) {
        buffer.put((byte) i);
    }
    int offset = 20;
    buffer.position(offset);
    String filename = "pkg/foo.class";
    byte[] extraData = { 1, 2, 3, 4, 5 };
    String comment = "c";
    int expMark = (int) ZipInputStream.CENSIG;
    int expSize = 46 + filename.getBytes(UTF_8).length + extraData.length + comment.getBytes(UTF_8).length;
    int expPos = 0;
    DirectoryEntry view = DirectoryEntry.view(buffer, filename, extraData, comment);
    assertEquals("not based at current position", expMark, view.get(CENSIG));
    assertEquals("Not slice with position 0", expPos, view.buffer.position());
    assertEquals("Not sized with filename", expSize, view.getSize());
    assertEquals("Not limited to size", expSize, view.buffer.limit());
    assertEquals("Incorrect filename", filename, view.getFilename());
    Assert.assertArrayEquals("Incorrect extra data", extraData, view.getExtraData());
    assertEquals("Incorrect comment", comment, view.getComment());
}

Example 64 with ByteBuffer

use of java.nio.ByteBuffer in project bazel by bazelbuild.

the class LocalFileHeaderTest method testCopy.

@Test
public void testCopy() {
    ByteBuffer buffer = ByteBuffer.allocate(100).order(ByteOrder.LITTLE_ENDIAN);
    LocalFileHeader view = LocalFileHeader.allocate("pkg/foo.class", null);
    view.copy(buffer);
    int expSize = view.getSize();
    assertEquals("buffer not advanced as expected", expSize, buffer.position());
    buffer.position(0);
    LocalFileHeader clone = LocalFileHeader.viewOf(buffer);
    assertEquals("Fail to copy mark", view.get(LOCSIG), view.get(LOCSIG));
    assertEquals("Fail to copy comment", view.getFilename(), clone.getFilename());
}

Example 65 with ByteBuffer

use of java.nio.ByteBuffer in project bazel by bazelbuild.

the class ViewTest method testFileOffset.

@Test
public void testFileOffset() {
    ByteBuffer buffer = ByteBuffer.allocate(100);
    TestView instance = new TestView(buffer);
    long expResult = -1L;
    long result = instance.fileOffset();
    assertEquals("default file offset should be -1", expResult, result);
}