ImmutableLongArray iia = ImmutableLongArray.of(1, 1, 2, 3, 5, 8);
    assertThat(iia.indexOf(1)).isEqualTo(0);
    assertThat(iia.indexOf(8)).isEqualTo(5);
    assertThat(iia.indexOf(4)).isEqualTo(-1);
    assertThat(ImmutableLongArray.of(13).indexOf(13)).isEqualTo(0);
    assertThat(ImmutableLongArray.of().indexOf(21)).isEqualTo(-1);
    assertThat(iia.subArray(1, 5).indexOf(1)).isEqualTo(0);
  }

        assertThat(bar.getMethod(), is(MyBean.class.getDeclaredMethod("bar", String.class)));
        assertThat(bar.getParameterTypes().length, is(1));
        assertThat(bar.getMethodName(), is("bar"));
        assertThat(bar.isPublic(), is(true));
        assertThat(bar.isStatic(), is(true));
        assertThat(bar.isFinal(), is(not(true)));
        assertThat(bar.isAbstract(), is(not(true)));

  public void testDecodeInt() {
    assertThat(UnsignedInts.decode("0xffffffff")).isEqualTo(0xffffffff);
    assertThat(UnsignedInts.decode("01234567")).isEqualTo(01234567); // octal
    assertThat(UnsignedInts.decode("#12345678")).isEqualTo(0x12345678);
    assertThat(UnsignedInts.decode("76543210")).isEqualTo(76543210);
    assertThat(UnsignedInts.decode("0x13579135")).isEqualTo(0x13579135);

    assertTrue(future.cancel(false));
    assertTrue(future.isCancelled());
    assertTrue(future.isDone());
    assertThat(tryInternalFastPathGetFailure(future)).isNull();
    CancellationException e = assertThrows(CancellationException.class, () -> future.get());
    assertThat(e.getCause()).isNotNull();
  }

  public void testCancel_notDoneInterrupt() throws Exception {
    Future<?> future = newFutureInstance();

    assertThat(formatDuration(-1_500_000_000L)).isEqualTo(" -2 s ")
    assertThat(formatDuration(-1_499_999_999L)).isEqualTo(" -1 s ")
    assertThat(formatDuration(-1_000_000_000L)).isEqualTo(" -1 s ")
    assertThat(formatDuration(  -999_500_000L)).isEqualTo(" -1 s ")
    assertThat(formatDuration(  -999_499_999L)).isEqualTo("-999 ms")
    assertThat(formatDuration(  -998_500_000L)).isEqualTo("-999 ms")

    AbstractGraphTest.validateGraph(asGraph);
    assertThat(graph.nodes()).isEqualTo(asGraph.nodes());
    assertThat(graph.edges()).isEqualTo(asGraph.edges());
    assertThat(graph.nodeOrder()).isEqualTo(asGraph.nodeOrder());
    assertThat(graph.incidentEdgeOrder()).isEqualTo(asGraph.incidentEdgeOrder());
    assertThat(graph.isDirected()).isEqualTo(asGraph.isDirected());
    assertThat(graph.allowsSelfLoops()).isEqualTo(asGraph.allowsSelfLoops());

    assertThat(LOWER_HYPHEN.to(LOWER_CAMEL, "foo")).isEqualTo("foo");
    assertThat(LOWER_HYPHEN.to(LOWER_CAMEL, "foo-bar")).isEqualTo("fooBar");
  }

  public void testLowerHyphenToUpperCamel() {
    assertThat(LOWER_HYPHEN.to(UPPER_CAMEL, "foo")).isEqualTo("Foo");
    assertThat(LOWER_HYPHEN.to(UPPER_CAMEL, "foo-bar")).isEqualTo("FooBar");
  }

  public void testLowerHyphenToUpperUnderscore() {

    AbstractGraphTest.validateGraph(asGraph);
    assertThat(graph.nodes()).isEqualTo(asGraph.nodes());
    assertThat(graph.edges()).isEqualTo(asGraph.edges());
    assertThat(graph.nodeOrder()).isEqualTo(asGraph.nodeOrder());
    assertThat(graph.incidentEdgeOrder()).isEqualTo(asGraph.incidentEdgeOrder());
    assertThat(graph.isDirected()).isEqualTo(asGraph.isDirected());
    assertThat(graph.allowsSelfLoops()).isEqualTo(asGraph.allowsSelfLoops());

  public void testToInt() {
    assertThat(UnsignedBytes.toInt((byte) 0)).isEqualTo(0);
    assertThat(UnsignedBytes.toInt((byte) 1)).isEqualTo(1);
    assertThat(UnsignedBytes.toInt((byte) 127)).isEqualTo(127);
    assertThat(UnsignedBytes.toInt((byte) -128)).isEqualTo(128);
    assertThat(UnsignedBytes.toInt((byte) -127)).isEqualTo(129);
    assertThat(UnsignedBytes.toInt((byte) -1)).isEqualTo(255);
  }

  public void testToByteArray() throws IOException {
    File asciiFile = getTestFile("ascii.txt");
    File i18nFile = getTestFile("i18n.txt");
    assertThat(Files.toByteArray(asciiFile)).isEqualTo(ASCII.getBytes(US_ASCII));
    assertThat(Files.toByteArray(i18nFile)).isEqualTo(I18N.getBytes(UTF_8));
    assertThat(Files.asByteSource(i18nFile).read()).isEqualTo(I18N.getBytes(UTF_8));
  }