for (Map<String, Object> log : logs) {
            String url = log.get("url").toString();
            assertTrue(url.contains("failure"), "URL should contain 'failure'");
        }

        logger.info("[END] testSearchByUrl");
    }

    /**
     * Test: Search failure URL logs by error count range
     */
    private void testSearchByErrorCount() {
        logger.info("[BEGIN] testSearchByErrorCount");

    assertThat(suppressed[0]).hasCauseThat().hasMessageThat().isEqualTo("run failure");

    assertThat(suppressed[1]).hasCauseThat().isInstanceOf(IllegalStateException.class);
    assertThat(suppressed[1]).hasCauseThat().hasMessageThat().isEqualTo("start failure");
    LogRecord record = Iterables.getOnlyElement(logHandler.getStoredLogRecords());
    // We log failures that occur after startup
    assertThat(record.getMessage())

    assertTrue(future.setException(new Exception("failure")));
    tester.testFailedFuture("failure");
  }

  public void testSetFailureNull() throws Exception {
    assertThrows(NullPointerException.class, () -> future.setException(null));
    assertFalse(future.isDone());
    assertTrue(future.setException(new Exception("failure")));
    tester.testFailedFuture("failure");
  }

  public void testCancel() throws Exception {

    assertTrue(future.setException(new Exception("failure")));
    tester.testFailedFuture("failure");
  }

  public void testSetFailureNull() throws Exception {
    assertThrows(NullPointerException.class, () -> future.setException(null));
    assertFalse(future.isDone());
    assertTrue(future.setException(new Exception("failure")));
    tester.testFailedFuture("failure");
  }

  public void testCancel() throws Exception {

  }

  public void testTrustedGetFailure_failed() {
    SettableFuture<String> future = SettableFuture.create();
    Throwable failure = new Throwable();
    future.setException(failure);
    assertThat(future.tryInternalFastPathGetFailure()).isEqualTo(failure);
  }

  public void testTrustedGetFailure_notCompleted() {
    SettableFuture<String> future = SettableFuture.create();

          // misconfigured mock. Try to switch to Failure.
          Failure failure;
          try {
            failure = new Failure(t);
          } catch (Exception | Error oomMostLikely) { // sneaky checked exception
            failure = Failure.FALLBACK_INSTANCE;
          }

   * test case failure. Only the first failure is recorded; subsequent calls to this method from
   * within the same test have no effect.
   */
  final void threadRecordFailure(Throwable t) {
    threadFailure.compareAndSet(null, t);
  }

  /**
   * Extra checks that get done for all test cases.
   *
   * <p>Triggers test case failure if any thread assertions have failed, by rethrowing, in the test

        if: ${{ !cancelled() && !failure() }}
        with:
          name: cache-${{ runner.os }}-full-build-${{ matrix.java }}
          retention-days: 1
          path: ${{ env.MIMIR_LOCAL }}

      - name: Upload test artifacts
        uses: actions/upload-artifact@bbbca2ddaa5d8feaa63e36b76fdaad77386f024f # v7.0.0
        if: failure() || cancelled()
        with:

    assertThat(suppressed[0]).hasCauseThat().hasMessageThat().isEqualTo("run failure");

    assertThat(suppressed[1]).hasCauseThat().isInstanceOf(IllegalStateException.class);
    assertThat(suppressed[1]).hasCauseThat().hasMessageThat().isEqualTo("start failure");
    LogRecord record = Iterables.getOnlyElement(logHandler.getStoredLogRecords());
    // We log failures that occur after startup
    assertThat(record.getMessage())

    @Nullable private String value = null;
    @Nullable private Throwable failure = null;
    private boolean wasCalled = false;
    private final Object monitor = new Object();

    MockCallback(String expectedValue) {
      this.value = expectedValue;
    }

    MockCallback(Throwable expectedFailure) {
      this.failure = expectedFailure;
    }

    @Override