Examples with ByteSequence org.graalvm.polyglot.io.ByteSequence used on opensource projects

Example 26 with ByteSequence

use of org.graalvm.polyglot.io.ByteSequence in project graal by oracle.

the class ByteSequenceTest method testByteArraySequence.

@Test
public void testByteArraySequence() {
    ByteSequence sequence = ByteSequence.create(new byte[] { 1, 2, 3, 4 });
    assertTrue(sequence.bytes().allMatch((e) -> e > 0 && e <= 4));
    assertEquals(1, sequence.byteAt(0));
    assertEquals(2, sequence.byteAt(1));
    assertEquals(3, sequence.byteAt(2));
    assertEquals(4, sequence.byteAt(3));
    assertEquals(4, sequence.length());
    // not failing
    sequence.hashCode();
    assertEquals(sequence, sequence);
    assertEquals(sequence, ByteSequence.create(new byte[] { 1, 2, 3, 4 }));
    assertNotNull(sequence.toString());
    assertArrayEquals(new byte[0], sequence.subSequence(0, 0).toByteArray());
    assertArrayEquals(new byte[] { 1 }, sequence.subSequence(0, 1).toByteArray());
    assertArrayEquals(new byte[] { 4 }, sequence.subSequence(3, 4).toByteArray());
    assertArrayEquals(new byte[] { 2, 3, 4 }, sequence.subSequence(1, 4).toByteArray());
    assertArrayEquals(new byte[] { 1, 2, 3 }, sequence.subSequence(0, 3).toByteArray());
    assertArrayEquals(new byte[0], sequence.subSequence(4, 4).toByteArray());
    assertEquals(sequence, sequence.subSequence(0, 4));
    assertEquals(sequence.subSequence(0, 1), sequence.subSequence(0, 1));
    assertNotEquals(sequence.subSequence(0, 1), sequence.subSequence(0, 2));
    assertNotEquals(sequence.subSequence(0, 1), sequence.subSequence(1, 2));
    ByteSequence other = ByteSequence.create(new byte[] { 1, 2, 3, 4 });
    assertEquals(sequence, other);
    assertEquals(sequence.subSequence(0, 1), other.subSequence(0, 1));
    assertNotEquals(sequence.subSequence(0, 1), other.subSequence(0, 2));
    assertNotEquals(sequence.subSequence(0, 1), other.subSequence(1, 2));
    ByteSequence otherClass = new ByteSequenceImpl();
    assertEquals(sequence, otherClass);
    assertEquals(sequence.subSequence(0, 1), otherClass.subSequence(0, 1));
    assertNotEquals(sequence.subSequence(0, 1), otherClass.subSequence(0, 2));
    assertNotEquals(sequence.subSequence(0, 1), otherClass.subSequence(1, 2));
    assertNotEquals(sequence, null);
    assertNotEquals(sequence, new Object());
    assertFails(() -> sequence.subSequence(1, 0), IndexOutOfBoundsException.class);
    assertFails(() -> sequence.subSequence(-1, 1), IndexOutOfBoundsException.class);
    assertFails(() -> sequence.subSequence(3, 5), IndexOutOfBoundsException.class);
    assertFails(() -> sequence.byteAt(-1), IndexOutOfBoundsException.class);
    assertFails(() -> sequence.byteAt(4), IndexOutOfBoundsException.class);
}