if _, ok := err.(BackendDown); ok {
			return err
		}
		return tierPermErr{
			Op:  tierDelete,
			Err: err,
		}
	}
	return err
}

type tierOp uint8

const (
	_ tierOp = iota
	tierGet
	tierPut
	tierDelete
)

func (op tierOp) String() string {
	switch op {
	case tierGet:
		return "GET"
	case tierPut:
		return "PUT"

fun osSuffix(os: Os?) = os?.asName()?.plus("_") ?: ""

fun <T : BaseGradleBuildType> Dependencies.snapshotDependencies(
    buildTypes: Iterable<T>,
    snapshotConfig: SnapshotDependency.(T) -> Unit = {},
) {
    buildTypes.forEach { buildType ->
        dependency(buildType.id!!) {
            snapshot {
                if (!buildType.failStage) {
                    onDependencyFailure = FailureAction.IGNORE

    tar zxf - google-cloud-sdk && \
    google-cloud-sdk/install.sh --quiet
ENV PATH="$PATH:/google-cloud-sdk/bin/"

# Install various tools.
# - bats: bash unit testing framework
#         NOTE: v1.6.0 seems to have a bug that made "git" in setup_file break
# - bazelisk: always use the correct bazel version

        connection.inputStream
          .source()
          .buffer()
          .readUtf8(),
      ).contains("Peter the person")
    }
  }

  private fun testRequest(function: (MockServerClient) -> Unit) {
    MockServerClient(mockServer.host, mockServer.serverPort).use { mockServerClient ->
      val request =
        request()
          .withPath("/person")
          .withQueryStringParameter("name", "peter")

                        for (int i = 0; i < nnm.getLength(); i++) {
                            final Node attr = nnm.item(i);
                            final String aname = attr.getNodeName();
                            final boolean isPrefix = aname.startsWith("xmlns:");

                            if (isPrefix || "xmlns".equals(aname)) {
                                final int index = aname.indexOf(':');

        return ITEM_ENDPOINT_SUFFIX + "/" + dictId;
    }

    @Override
    protected String getDictType() {
        return DICT_TYPE;
    }

    @Override
    protected Map<String, Object> createTestParam(int id) {
        final Map<String, Object> requestBody = new HashMap<>();
        final String keyProp = NAME_PREFIX + id;
        requestBody.put(KEY_PROPERTY, keyProp);
        requestBody.put("segmentation", "segment");

      throw new AssertionError(e);
    }
  }

  @Override
  public SampleElements<E> samples() {
    return delegate.samples();
  }

  @Override
  public E[] createArray(int length) {
    return delegate.createArray(length);
  }

  @Override
  public Iterable<E> order(List<E> insertionOrder) {
    return delegate.order(insertionOrder);
  }

    this.graph = graph;
    this.node = node;
  }

  @Override
  public boolean remove(@Nullable Object o) {
    throw new UnsupportedOperationException();
  }

  @Override
  public int size() {
    if (graph.isDirected()) {
      return graph.inDegree(node)
          + graph.outDegree(node)
          - (graph.successors(node).contains(node) ? 1 : 0);
    } else {

     * Throws a validation error if the modes do not match.
     *
     * @param crudMode the actual CRUD mode
     * @param expectedMode the expected CRUD mode
     */
    protected void verifyCrudMode(final int crudMode, final int expectedMode) {
        if (crudMode != expectedMode) {
            throwValidationError(messages -> {
                messages.addErrorsCrudInvalidMode(GLOBAL, String.valueOf(expectedMode), String.valueOf(crudMode));

              protected Set<String> create(String[] elements) {
                String[] deduped = dedupe(elements);
                return new AbstractSet<String>() {
                  @Override
                  public int size() {
                    return deduped.length;
                  }

                  @Override
                  public Iterator<String> iterator() {