assertThat(ComparisonChain.start().compareFalseFirst(false, true).result()).isLessThan(0);
    assertThat(ComparisonChain.start().compareFalseFirst(false, false).result()).isEqualTo(0);
  }

  public void testCompareTrueFirst() {
    assertThat(ComparisonChain.start().compareTrueFirst(true, true).result()).isEqualTo(0);

        def op1 = ops.start("compile", null, new OperationIdentifier(1), null)
        def op2 = ops.start("resolve", null, new OperationIdentifier(2), null)

        then:
        op1.operationId.id == 1L
        op1.parent == null
        op2.operationId.id == 2L
        op2.parent == null
    }

    def "tracks progress"() {
        when:
        ops.start("Building", null, new OperationIdentifier(1), null)

	CS5                               = 0x0
	CS6                               = 0x100
	CS7                               = 0x200
	CS8                               = 0x300
	CSIZE                             = 0x300
	CSTART                            = 0x11
	CSTATUS                           = 0xff
	CSTOP                             = 0x13
	CSTOPB                            = 0x400
	CSUSP                             = 0x1a

	CS5                               = 0x0
	CS6                               = 0x100
	CS7                               = 0x200
	CS8                               = 0x300
	CSIZE                             = 0x300
	CSTART                            = 0x11
	CSTATUS                           = 0xff
	CSTOP                             = 0x13
	CSTOPB                            = 0x400
	CSUSP                             = 0x1a

	s.next = s.start
}

// deleteRange removes the given range from s.b before the current token.
func (s *scanner) deleteRange(start, end int) {
	s.b = s.b[:start+copy(s.b[start:], s.b[end:])]
	diff := end - start
	s.next -= diff
	s.start -= diff
	s.end -= diff
}

// scan parses the next token of a BCP 47 string.  Tokens that are larger
// than 8 characters or include non-alphanumeric characters result in an error

		return 0, 0, err
	}

	start = h.Start
	if h.IsSuffixLength {
		start = resourceSize + h.Start
		if start < 0 {
			start = 0
		}
	}
	return start, length, nil
}

// Parse a HTTP range header value into a HTTPRangeSpec
func parseRequestRangeSpec(rangeString string) (hrange *HTTPRangeSpec, err error) {
	// Return error if given range string doesn't start with byte range prefix.

		}
	}

	// Assign line comments to syntax immediately following.
	for _, x := range in.pre {
		start, _ := x.Span()
		if debug {
			fmt.Fprintf(os.Stderr, "pre %T :%d:%d #%d\n", x, start.Line, start.LineRune, start.Byte)
		}
		xcom := x.Comment()
		for len(line) > 0 && start.Byte >= line[0].Start.Byte {
			if debug {

		// have an empty match: start.x==end.x and start.y==end.y.
		start := m
		for start.x > done.x && start.y > done.y && x[start.x-1] == y[start.y-1] {
			start.x--
			start.y--
		}
		end := m
		for end.x < len(x) && end.y < len(y) && x[end.x] == y[end.y] {
			end.x++
			end.y++
		}

		// Emit the mismatched lines before start into this chunk.

        server.expect("f")
        server.start()

        when:
        async {
            start {
                succeeds("a")
            }
            start {
                succeeds("b")
            }
            server.waitForRequests(2)
            succeeds("c")
            start {
                succeeds("d")
            }
            start {
                succeeds("e")
            }

    assertSame(stopwatch, stopwatch.start());
    assertTrue(stopwatch.isRunning());
  }

  public void testStart_whileRunning() {
    stopwatch.start();
    try {
      stopwatch.start();
      fail();
    } catch (IllegalStateException expected) {
    }
    assertTrue(stopwatch.isRunning());
  }

  public void testStop() {
    stopwatch.start();
    assertSame(stopwatch, stopwatch.stop());