// Test empty pattern
        urlFilter.addInclude("");
        urlFilter.addExclude("");

        // Test single character pattern
        urlFilter.addInclude(".");
        urlFilter.addExclude("*");

        // Test patterns with only special characters
        urlFilter.addInclude("^$");
        urlFilter.addExclude(".*");

        // Should handle boundary conditions gracefully

    }

    @Override
    public String getLocation() {
        return location;
    }

    /**
     * Gets the content of this source.
     *
     * @return The underlying character stream, never {@code null}.
     */
    public String getContent() {
        return content;
    }

    @Override
    public String toString() {
        return getLocation();
    }

    @Override

    protected static final Map<String, Class<?>> primitiveNameToClassMap = newHashMap();

    static {
        wrapperToPrimitiveMap.put(Boolean.class, Boolean.TYPE);
        wrapperToPrimitiveMap.put(Character.class, Character.TYPE);
        wrapperToPrimitiveMap.put(Byte.class, Byte.TYPE);
        wrapperToPrimitiveMap.put(Short.class, Short.TYPE);
        wrapperToPrimitiveMap.put(Integer.class, Integer.TYPE);

    }
  }

  @J2ktIncompatible
  @GwtIncompatible // too slow
  public void testToStringRadix() {
    for (int radix = Character.MIN_RADIX; radix <= Character.MAX_RADIX; radix++) {
      for (int l : TEST_INTS) {
        UnsignedInteger value = UnsignedInteger.fromIntBits(l);
        assertThat(value.toString(radix)).isEqualTo(value.bigIntegerValue().toString(radix));

@GwtCompatible
@NullMarked
public class HashBasedTableColumnMapTest extends ColumnMapTests {
  public HashBasedTableColumnMapTest() {
    super(false, true, true, false);
  }

  @Override
  Table<Integer, String, Character> makeTable() {
    return HashBasedTable.create();
  }

@GwtCompatible
@NullMarked
public class HashBasedTableRowMapTest extends RowMapTests {
  public HashBasedTableRowMapTest() {
    super(false, true, true, true);
  }

  @Override
  Table<String, Integer, Character> makeTable() {
    return HashBasedTable.create();
  }

@GwtCompatible
@NullMarked
public class TreeBasedTableRowMapTest extends RowMapTests {
  public TreeBasedTableRowMapTest() {
    super(false, true, true, true);
  }

  @Override
  Table<String, Integer, Character> makeTable() {
    return TreeBasedTable.create();
  }

`Header` has a little extra functionality on top of what `Path`, `Query` and `Cookie` provide.

Most of the standard headers are separated by a "hyphen" character, also known as the "minus symbol" (`-`).

But a variable like `user-agent` is invalid in Python.

So, by default, `Header` will convert the parameter names characters from underscore (`_`) to hyphen (`-`) to extract and document the headers.

    }

    @ParameterizedTest
    @DisplayName("Test invalid usernames")
    @ValueSource(strings = { "user name", // space
            "user#name", // invalid character
            "user$name" // invalid character
    })
    void testInvalidUsernames(String username) {
        assertThrows(IllegalArgumentException.class, () -> InputValidator.validateUsername(username));
    }

    @Test

  public String toString() {
    return toString(10);
  }

  /**
   * Returns a string representation of the {@code UnsignedInteger} value, in base {@code radix}. If
   * {@code radix < Character.MIN_RADIX} or {@code radix > Character.MAX_RADIX}, the radix {@code
   * 10} is used.
   */
  public String toString(int radix) {
    return UnsignedInts.toString(value, radix);
  }