# HTTP Basic Auth { #http-basic-auth }

For the simplest cases, you can use HTTP Basic Auth.

In HTTP Basic Auth, the application expects a header that contains a username and a password.

If it doesn't receive it, it returns an HTTP 401 "Unauthorized" error.

And returns a header `WWW-Authenticate` with a value of `Basic`, and an optional `realm` parameter.

That tells the browser to show the integrated prompt for a username and password.

        }
        return pairs;
    }

    /**
     * Checks if the AV pairs list contains a pair of the specified type
     *
     * @param pairs the list of AV pairs to search
     * @param type the AV pair type to look for
     * @return whether the list contains a pair of that type
     */
    public static boolean contains(final List<AvPair> pairs, final int type) {
        if (pairs == null) {
            return false;

   */
  int outDegree(N node);

  /**
   * Returns true if there is an edge that directly connects {@code nodeU} to {@code nodeV}. This is
   * equivalent to {@code nodes().contains(nodeU) && successors(nodeU).contains(nodeV)}.
   *
   * <p>In an undirected graph, this is equal to {@code hasEdgeConnecting(nodeV, nodeU)}.
   *
   * @since 23.0
   */
  boolean hasEdgeConnecting(N nodeU, N nodeV);

  /**

    cache.put(20, 22);
    cache.put(5, 10);

    fakeTicker.advance(501, MILLISECONDS);

    assertThat(cache.asMap().values().contains(22)).isTrue();
    assertThat(cache.asMap().values().contains(10)).isTrue();
    assertThat(cache.asMap().values().contains(20)).isFalse();
  }

  @Test
  @J2ktIncompatible
  public void asMapKeySet() {
    Cache<Integer, Integer> cache =

  }

  /**
   * Returns {@code true} if {@code iterable} contains any element {@code o} for which {@code
   * Objects.equals(o, element)} would return {@code true}. Otherwise returns {@code false}, even in
   * cases where {@link Collection#contains} might throw {@link NullPointerException} or {@link
   * ClassCastException}.
   */
  public static boolean contains(Iterable<?> iterable, @Nullable Object element) {

        // Test toString
        String result = fileInternalInfo.toString();

        // Verify string contains expected components
        assertNotNull(result);
        assertTrue(result.contains("SmbQueryFileInternalInfo"));
        assertTrue(result.contains("indexNumber="));
        assertTrue(result.contains(String.valueOf(expectedIndexNumber)));
    }

    @Test
    @DisplayName("Test toString with zero index number")

        assertNotSame(pipe1, pipe2, "Different pipes should be different instances");

        assertTrue(resource1.getLocator().getURL().toString().contains("server1"), "First resource should contain server1");
        assertTrue(resource2.getLocator().getURL().toString().contains("server2"), "Second resource should contain server2");
    }

    assertTrue(rangeSet.encloses(Range.greaterThan(3)));
    assertFalse(rangeSet.encloses(Range.closedOpen(1, 5)));

    assertTrue(rangeSet.contains(3));
    assertTrue(rangeSet.contains(5));
    assertFalse(rangeSet.contains(0));
    assertFalse(rangeSet.contains(2));

    assertEquals(ImmutableRangeSet.of(Range.atMost(2)), rangeSet.complement());
  }

  public void testSingleBoundedAboveRange() {

   */
  int size();

  /**
   * Returns {@code true} if this multimap contains no key-value pairs. Equivalent to {@code size()
   * == 0}, but can in some cases be more efficient.
   */
  boolean isEmpty();

  /**
   * Returns {@code true} if this multimap contains at least one key-value pair with the key {@code
   * key}.
   */

        try {
            new CurlRequest(null, url);
            fail("Expected IllegalArgumentException");
        } catch (IllegalArgumentException e) {
            assertTrue(e.getMessage().contains("method must not be null"));
        }
    }

    @Test
    public void testSingleArgumentConstructor() {
        CurlRequest request = new CurlRequest(Method.POST);