try {
      collection.add(sampleElement);
      fail("add succeeded on unmodifiable collection");
    } catch (UnsupportedOperationException expected) {
    }

    assertCollectionsAreEquivalent(copy, collection);

    try {
      collection.addAll(siblingCollection);
      fail("addAll succeeded on unmodifiable collection");
    } catch (UnsupportedOperationException expected) {
    }

    tester.testInstanceMethods(Joiner.on(","), NullPointerTester.Visibility.PACKAGE);
    tester.testInstanceMethods(Joiner.on(",").skipNulls(), NullPointerTester.Visibility.PACKAGE);
    tester.testInstanceMethods(
        Joiner.on(",").useForNull("x"), NullPointerTester.Visibility.PACKAGE);
    tester.testInstanceMethods(
        Joiner.on(",").withKeyValueSeparator("="), NullPointerTester.Visibility.PACKAGE);
  }

 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.google.common.collect.testing.testers;

import static com.google.common.collect.testing.features.CollectionFeature.FAILS_FAST_ON_CONCURRENT_MODIFICATION;

public class JoinerBenchmark {

  private static final String DELIMITER_STRING = ",";
  private static final char DELIMITER_CHARACTER = ',';

  private static final Joiner JOINER_ON_STRING = Joiner.on(DELIMITER_STRING);
  private static final Joiner JOINER_ON_CHARACTER = Joiner.on(DELIMITER_CHARACTER);

  @Param({"3", "30", "300"})
  int count;

  @Param({"0", "1", "16", "32", "100"})
  int componentLength;

    Properties getSystemProperties();

    /**
     * Sets the user properties to use for interpolation and profile activation. The user properties have been
     * configured directly by the user on his discretion, e.g. via the {@code -Dkey=value} parameter on the command
     * line.
     *
     * @param userProperties The user properties, may be {@code null}.
     * @return This request, never {@code null}.
     */

   * "Some collection implementations have restrictions on the elements that they may contain. For
   * example, some implementations prohibit null elements, and some have restrictions on the types
   * of their elements."
   *
   * </blockquote>
   */
  RESTRICTS_ELEMENTS,

  /**
   * Indicates that a collection has a well-defined ordering of its elements. The ordering may

    try {
      collection.add(sampleElement);
      fail("add succeeded on unmodifiable collection");
    } catch (UnsupportedOperationException expected) {
    }

    assertCollectionsAreEquivalent(copy, collection);

    try {
      collection.addAll(siblingCollection);
      fail("addAll succeeded on unmodifiable collection");
    } catch (UnsupportedOperationException expected) {
    }

  /**
   * The map does not throw {@code NullPointerException} on calls such as {@code containsKey(null)},
   * {@code get(null)}, {@code keySet().contains(null)} or {@code remove(null)}.
   */
  ALLOWS_NULL_KEY_QUERIES,
  ALLOWS_NULL_KEYS(ALLOWS_NULL_KEY_QUERIES),
  /**
   * The map does not throw {@code NullPointerException} on calls such as {@code

/**
 * A generic JUnit test which tests {@code remove} operations on a map. Can't be invoked directly;
 * please see {@link com.google.common.collect.testing.MapTestSuiteBuilder}.
 *
 * @author George van den Driessche
 * @author Chris Povirk
 */
@GwtCompatible
@Ignore // Affects only Android test runner, which respects JUnit 4 annotations on JUnit 3 tests.
public class MapRemoveTester<K, V> extends AbstractMapTester<K, V> {

              }
            })
        .withFeatures(
            MapFeature.GENERAL_PURPOSE,
            MapFeature.FAILS_FAST_ON_CONCURRENT_MODIFICATION,
            MapFeature.RESTRICTS_KEYS,
            MapFeature.SUPPORTS_REMOVE,
            CollectionFeature.FAILS_FAST_ON_CONCURRENT_MODIFICATION,
            CollectionFeature.SERIALIZABLE,
            CollectionFeature.SUPPORTS_ITERATOR_REMOVE,