def YAML_FACTORY = new YAMLFactory()
    def MAPPER = new ObjectMapper(YAML_FACTORY)
    def READER = MAPPER.readerFor(ObjectNode.class)
    def WRITER = MAPPER.writerFor(ObjectNode.class)

    def "yamlRestTestVxCompatTest does nothing when there are no tests"() {
        given:
        addSubProject(":distribution:bwc:minor") << """
        configurations { checkout }

    private static final ObjectMapper MAPPER = new ObjectMapper(YAML_FACTORY);
    private static final ObjectReader READER = MAPPER.readerFor(ObjectNode.class);
    private static final ObjectWriter WRITER = MAPPER.writerFor(ObjectNode.class);
    private static final String REST_TEST_PREFIX = "rest-api-spec/test";

    private static final Map<String, String> headers = new LinkedHashMap<>();

	var buf strings.Builder
	buf.Grow(n)
	// Copy full pieces and fragment in.
	for _, fb := range full {
		buf.Write(fb)
	}
	buf.Write(frag)
	return buf.String(), err
}

// WriteTo implements io.WriterTo.
// This may make multiple calls to the [Reader.Read] method of the underlying [Reader].
// If the underlying reader supports the [Reader.WriteTo] method,
// this calls the underlying [Reader.WriteTo] without buffering.

	return b2[:i]
}

// WriteTo writes data to w until the buffer is drained or an error occurs.
// The return value n is the number of bytes written; it always fits into an
// int, but it is int64 to match the [io.WriterTo] interface. Any error
// encountered during the write is also returned.
func (b *Buffer) WriteTo(w io.Writer) (n int64, err error) {
	b.lastRead = opInvalid
	if nBytes := b.Len(); nBytes > 0 {