public void testToString() {
    assertThat(md5().toString()).isEqualTo("Hashing.md5()");
    assertThat(sha1().toString()).isEqualTo("Hashing.sha1()");
    assertThat(sha256().toString()).isEqualTo("Hashing.sha256()");
    assertThat(sha512().toString()).isEqualTo("Hashing.sha512()");
  }

  private static void assertMessageDigestHashing(byte[] input, String algorithmName)

    ImmutableNetwork<String, Integer> immutableNetwork = ImmutableNetwork.copyOf(mutableNetwork);

    assertThat(immutableNetwork).isNotInstanceOf(MutableNetwork.class);
    assertThat(immutableNetwork).isEqualTo(mutableNetwork);

    mutableNetwork.addNode("B");
    assertThat(immutableNetwork).isNotEqualTo(mutableNetwork);
  }

  @Test
  public void copyOfImmutableNetwork_optimized() {

          mappedToCodePoints = listOf(2),
        ),
      ),
    ).isEqualTo(InlineDelta(1, 1))

    assertThat(
      inlineDeltaOrNull(
        mappingOf(
          sourceCodePoint0 = 2,
          sourceCodePoint1 = 2,
          mappedToCodePoints = listOf(1),
        ),
      ),
    ).isEqualTo(InlineDelta(2, -1))
  }

  @Test fun inlineDeltaOrNullMultipleSourceCodePoints() {

    EnumHashBiMap<Currency, String> bimap = EnumHashBiMap.create(Currency.class);
    assertTrue(bimap.isEmpty());
    assertThat(bimap.toString()).isEqualTo("{}");
    assertEquals(HashBiMap.create(), bimap);
    bimap.put(Currency.DOLLAR, "dollar");
    assertThat(bimap.get(Currency.DOLLAR)).isEqualTo("dollar");
    assertEquals(Currency.DOLLAR, bimap.inverse().get("dollar"));
  }

  public void testCreateFromMap() {

  public void inDegree_oneEdge() {
    addEdge(N1, N2, E12);
    assertThat(network.inDegree(N2)).isEqualTo(1);
    assertThat(network.inDegree(N1)).isEqualTo(1);
  }

  @Test
  public void outDegree_oneEdge() {
    addEdge(N1, N2, E12);
    assertThat(network.outDegree(N1)).isEqualTo(1);
    assertThat(network.outDegree(N2)).isEqualTo(1);
  }

  @Test
  public void edges_selfLoop() {

    val call = client.newCall(Request(url))
    val response = call.execute()
    assertThat(response.body.string()).isEqualTo("this was the 2nd request on IPv4")
    assertThat(serverIpv4.takeRequest().exchangeIndex).isEqualTo(0)
    assertThat(serverIpv4.takeRequest().exchangeIndex).isEqualTo(1)
  }

    message: String?,
    code: Int? = null,
  ) {
    val event = nextEvent() as Failure
    if (code != null) {
      assertThat(event.response?.code).isEqualTo(code)
    }
    if (message != null) {
      assertThat(event.message).isEqualTo(message)
    } else {
      assertThat(event.t).isNull()
    }
  }

  internal data class Open(
    val eventSource: EventSource,

                    String v4,
                    String v5) -> {
                  assertThat(v1).isEqualTo(closeable1);
                  assertThat(v2).isEqualTo("value2");
                  assertThat(v3).isEqualTo("value3");
                  assertThat(v4).isEqualTo("value4");
                  assertThat(v5).isEqualTo("value5");
                  assertStillOpen(closeable1);

  }

  public void testToString() {
    assertThat(entry("foo", 1).toString()).isEqualTo("foo");
    assertThat(entry("bar", 2).toString()).isEqualTo("bar x 2");
  }

  public void testToStringNull() {
    assertThat(entry(NE, 1).toString()).isEqualTo("null");
    assertThat(entry(NE, 2).toString()).isEqualTo("null x 2");
  }

  public void testEquals() {
    assertEquals(control("foo", 1), entry("foo", 1));

      try {
        throw exception;
      } catch (Throwable e) {
        throw closer.rethrow(e);
      } finally {
        closer.close();
      }
    } catch (Throwable caught) {
      assertThat(caught).isEqualTo(exception);
    }

    assertTrue(c1.isClosed());
    assertTrue(c2.isClosed());

    assertTrue(suppressor.suppressions.isEmpty());
  }