* message passed to a later invocation of {@code fail()}, like "setCount should throw
   * UnsupportedOperationException."
   */
  abstract void setCountNoCheckReturnValue(E element, int count);

  private void assertSetCountIncreasingFailure(E element, int count) {
    try {
      setCountNoCheckReturnValue(element, count);
      fail("a call to multiset.setCount() to increase an element's count should throw");

            sitemapsHelper.parse(in);
            fail();
        } catch (final CrawlingAccessException e) {
            // NOP
        }
    }

    public void test_parseXmlSitemaps_invalid2() {
        final byte[] bytes = "test".getBytes();
        final InputStream in = new ByteArrayInputStream(bytes);

        try {
            sitemapsHelper.parse(in);
            fail();

            fail("Expected ScriptEngineException");
        } catch (ScriptEngineException e) {
            assertTrue(e.getMessage().contains("nonexistent"));
        }
    }

    public void test_execute_withNullScriptType() {
        // Try to execute with null script type
        try {
            scriptExecutor.execute(null, "some script");
            fail("Expected ScriptEngineException");

    @Test
    public void testFailureThresholdOpensCircuit() {
        // Fail 3 times to open circuit
        for (int i = 0; i < 3; i++) {
            final int index = i;
            try {
                circuitBreaker.executeWithCircuitBreaker(() -> {
                    throw new RuntimeException("Test failure " + index);
                });
                fail("Should have thrown exception");
            } catch (CIFSException e) {

    return whenAllComplete(asList(future1, moreFutures));
  }

  /**
   * Starts specifying how to combine {@link ClosingFuture}s into a single pipeline, assuming they
   * all succeed. If any fail, the resulting pipeline will fail.
   *
   * @throws IllegalStateException if a {@code ClosingFuture} has already been derived from any of
   *     the {@code futures}, or if any has already been {@linkplain #finishToFuture() finished}
   */

        chain.updateThrowsException = true;
        User user = createTestUser("testuser", "Test User");

        try {
            chain.update(user);
            fail("Expected exception to be thrown");
        } catch (RuntimeException e) {
            assertEquals("Update failed", e.getMessage());
        }

        assertEquals(1, chain.updateCalls.size());
    }

        return ITEM_ENDPOINT_SUFFIX;
    }

    @Override
    protected Map<String, Object> createTestParam(int id) {
        fail(); // Unreachable
        return null;
    }

    @Override
    protected Map<String, Object> getUpdateMap() {
        fail(); // Unreachable
        return null;
    }

    @Override
    protected void testRead() {

        return ITEM_ENDPOINT_SUFFIX;
    }

    @Override
    protected Map<String, Object> createTestParam(int id) {
        fail(); // Unreachable
        return null;
    }

    @Override
    protected Map<String, Object> getUpdateMap() {
        fail(); // Unreachable
        return null;
    }

    @Override
    protected void testRead() {

        return ITEM_ENDPOINT_SUFFIX;
    }

    @Override
    protected Map<String, Object> createTestParam(int id) {
        fail(); // Unreachable
        return null;
    }

    @Override
    protected Map<String, Object> getUpdateMap() {
        fail(); // Unreachable
        return null;
    }

    @Override
    protected void testRead() {

import static org.junit.jupiter.api.Assertions.assertNull;
import static org.junit.jupiter.api.Assertions.assertSame;
import static org.junit.jupiter.api.Assertions.assertThrows;
import static org.junit.jupiter.api.Assertions.fail;

import java.io.IOException;
import java.lang.reflect.Field;
import java.nio.file.Files;
import java.nio.file.Path;
import java.util.Properties;

import org.junit.jupiter.api.AfterEach;