}
    }

    // Test getValueFromMap private method via reflection
    public void test_getValueFromMap() throws Exception {
        Method method = Crawler.class.getDeclaredMethod("getValueFromMap", Map.class, String.class, String.class);
        method.setAccessible(true);

        Map<String, String> dataMap = new HashMap<>();
        dataMap.put("key1", "value1");
        dataMap.put("key2", "");

        assertEquals(initialSize - 1, map.size());
      } else {
        assertThrows(UnsupportedOperationException.class, () -> map.remove(keyToRemove));
      }
      assertInvariants(map);
    }
  }

  abstract static class RowMapTests extends MapMapTests {
    RowMapTests(
        boolean allowsNullValues,
        boolean supportsRemove,
        boolean supportsClear,

                assertEquals(0, bytesWritten, "Failed at iteration " + i);
            }
        }
    }

    @Nested
    @DisplayName("Error handling tests")
    class ErrorHandlingTests {

        @Test
        @DisplayName("Should provide clear error message for invalid structure size")
        void testClearErrorMessage() {
            // Given
            byte[] buffer = new byte[10];

    requestedUris.add(uri)
    return proxies
  }

  fun assertRequests(vararg expectedUris: URI?) {
    assertThat(requestedUris).containsExactly(*expectedUris)
    requestedUris.clear()
  }

  override fun connectFailed(
    uri: URI,
    sa: SocketAddress,
    ioe: IOException,
  ) {
    val socketAddress = sa as InetSocketAddress
    failures.add(format("%s %s:%d %s", uri, socketAddress, socketAddress.port, ioe.message!!))

        If you need help with Gradle or have a usage question, please reach [our community](http://help.gradle.org/) instead of creating an issue.

        If you found a clear typo, please open a PR with a fix instead of opening an issue.

  - type: dropdown
    id: issue-type
    attributes:
      label: Issue type
      options:
        - Wrong or misleading information

    int oldCapacity = links.length;
    links = Arrays.copyOf(links, newCapacity);
    Arrays.fill(links, oldCapacity, newCapacity, UNSET);
  }

  @Override
  public void clear() {
    super.clear();
    this.firstEntry = ENDPOINT;
    this.lastEntry = ENDPOINT;
  }

        // Invalid integer should use default
        props.clear();
        props.setProperty("jcifs.smb.client.maxChannels", "invalid");
        config = new PropertyConfiguration(props);
        assertEquals(4, config.getMaxChannels());

        // Invalid channel binding policy should default to preferred
        props.clear();
        props.setProperty("jcifs.smb.client.channelBindingPolicy", "invalid");

import jcifs.CIFSContext;
import jcifs.CIFSException;

class SingletonContextTest {

    private static final Logger log = LoggerFactory.getLogger(SingletonContextTest.class);

    // Use reflection to reset the singleton instance between tests
    @BeforeEach
    @AfterEach
    void resetSingleton() {
        try {
            Field instance = SingletonContext.class.getDeclaredField("INSTANCE");

        while (from.read(buf) != -1) {
          ((Buffer) buf).flip();
          to.append(buf);
          total += buf.remaining();
          ((Buffer) buf).clear();
        }
        return total;
      }
    },
    NEW {
      @Override
      long copy(Readable from, Appendable to) throws IOException {
        return CharStreams.copy(from, to);
      }
    };

## A "callable" instance { #a-callable-instance }

In Python there's a way to make an instance of a class a "callable".

Not the class itself (which is already a callable), but an instance of that class.

To do that, we declare a method `__call__`:

{* ../../docs_src/dependencies/tutorial011_an_py39.py hl[12] *}