@Override
    public boolean containsKey(@Nullable Object key) {
      return containsRow(key);
    }

    // performing cast only when key is in backing map and has the correct type
    @SuppressWarnings("unchecked")
    @Override
    public @Nullable Map<C, V> get(@Nullable Object key) {
      // requireNonNull is safe because of the containsRow check.

            List<ChannelInfo> list = new ArrayList<>(channels);
            return list.get(ThreadLocalRandom.current().nextInt(list.size()));
        }
        
        // Weighted random selection
        int random = ThreadLocalRandom.current().nextInt(totalWeight);
        int currentWeight = 0;
        
        for (ChannelInfo channel : channels) {

            this.hasMore = false;
        }
        return this;
    }

    /**
     * Calculates padding needed for the given offset
     * @param offset
     *            the current offset
     * @return padding size in bytes
     */
    protected int pad(final int offset) {
        final int p = offset % getPadding();
        if (p == 0) {
            return 0;
        }

        assertEquals("SERVER2", serverList.get(1).oemDomainName);
    }

    /**
     * Test field types match expected types
     */
    @Test
    @DisplayName("Test field types are correct")
    public void testFieldTypes() throws NoSuchFieldException {
        // Verify field types
        assertEquals(byte.class, ServerData.class.getDeclaredField("sflags").getType());

	}
	// Verify if sha256 payload query is same.
	if clntHashedPayload != "" && clntHashedPayload != query.Get(xhttp.AmzContentSha256) {
		return ErrContentSHA256Mismatch
	}
	// Verify if security token is correct.
	if token != "" && subtle.ConstantTimeCompare([]byte(token), []byte(cred.SessionToken)) != 1 {
		return ErrInvalidToken
	}

	// Verify finally if signature is same.

	// Get canonical request.

  }

  @Test
  public void edgesConnecting_oneEdge() {
    addEdge(N1, N2, E12);
    assertThat(network.edgesConnecting(N1, N2)).containsExactly(E12);
    // Passed nodes should be in the correct edge direction, first is the
    // source node and the second is the target node
    assertThat(network.edgesConnecting(N2, N1)).isEmpty();
  }

  @Test
  public void inEdges_oneEdge() {

  }

  @Test
  public void edgesConnecting_oneEdge() {
    addEdge(N1, N2, E12);
    assertThat(network.edgesConnecting(N1, N2)).containsExactly(E12);
    // Passed nodes should be in the correct edge direction, first is the
    // source node and the second is the target node
    assertThat(network.edgesConnecting(N2, N1)).isEmpty();
  }

  @Test
  public void inEdges_oneEdge() {

        // When: Get challenge
        byte[] key = poolSpy.getChallenge(ctx, address);

        // Then: Should return server key
        assertArrayEquals(expectedKey, key, "Should return correct server key");
        verify(internal).ensureConnected();
    }

    @Test
    @DisplayName("Should wrap IOException in SmbException for getChallenge")
    void testGetChallengeIOException() throws Exception {

	// and don't process the If-Modified-Since header.
	if objInfo.ModTime.IsZero() || objInfo.ModTime.Equal(time.Unix(0, 0)) {
		return false
	}

	// Check if the part number is correct.
	if opts.PartNumber > 1 {
		partFound := false
		for _, pi := range objInfo.Parts {
			if pi.Number == opts.PartNumber {
				partFound = true
				break
			}
		}
		if !partFound {

The runtime/cgo.Handle type can be used to safely pass Go values
between Go and C. See the runtime/cgo package documentation for details.

Note: the current implementation has a bug. While Go code is permitted
to write nil or a C pointer (but not a Go pointer) to C memory, the
current implementation may sometimes cause a runtime error if the
contents of the C memory appear to be a Go pointer. Therefore, avoid