Function ParseDecTest

gda_test.go:76–161

(r io.Reader)

}

func ParseDecTest(r io.Reader) ([]TestCase, error) {
	scanner := bufio.NewScanner(r)
	tc := TestCase{
		Extended: true,
	}
	var err error
	var res []TestCase

	for scanner.Scan() {
		text := scanner.Text()
		// TODO(mjibson): support these test cases
		if strings.Contains(text, "#") {
			continue
		}
		line := strings.Fields(strings.ToLower(text))
		for i, t := range line {
			if strings.HasPrefix(t, "--") {
				line = line[:i]
				break
			}
		}
		if len(line) == 0 {
			continue
		}
		if strings.HasSuffix(line[0], ":") {
			if len(line) != 2 {
				return nil, fmt.Errorf("expected 2 tokens, got %q", text)
			}
			switch directive := line[0]; directive[:len(directive)-1] {
			case "precision":
				tc.Precision, err = strconv.Atoi(line[1])
				if err != nil {
					return nil, err
				}
			case "maxexponent":
				tc.MaxExponent, err = strconv.Atoi(line[1])
				if err != nil {
					return nil, err
				}
			case "minexponent":
				tc.MinExponent, err = strconv.Atoi(line[1])
				if err != nil {
					return nil, err
				}
			case "rounding":
				tc.Rounding = line[1]
			case "version":
				// ignore
			case "extended":
				tc.Extended = line[1] == "1"
			case "clamp":
				tc.Clamp = line[1] == "1"
			default:
				return nil, fmt.Errorf("unsupported directive: %s", directive)
			}
		} else {
			if len(line) < 5 {
				return nil, fmt.Errorf("short test case line: %q", text)