when(backingMap.putIfAbsent(eq(KEY), isA(AtomicInteger.class))).thenReturn(existing);

    // another map.get()
    when(backingMap.get(KEY)).thenReturn(existing);
    // we shouldn't see any more map operations; CHM will now just update the AtomicInteger

    assertEquals(12, multiset.add(KEY, 3));
    assertEquals(15, existing.get());
  }

  public void testRemove_zeroFromSome() {
    final int INITIAL_COUNT = 14;

import java.lang.reflect.Method;
import java.util.List;
import java.util.concurrent.CopyOnWriteArrayList;
import org.junit.Ignore;

/**
 * A generic JUnit test which tests {@code subList()} operations on a list. Can't be invoked
 * directly; please see {@link com.google.common.collect.testing.ListTestSuiteBuilder}.
 *
 * @author Chris Povirk
 */
@GwtCompatible(emulated = true)

import java.lang.reflect.Method;
import java.util.List;
import java.util.concurrent.CopyOnWriteArrayList;
import org.junit.Ignore;

/**
 * A generic JUnit test which tests {@code subList()} operations on a list. Can't be invoked
 * directly; please see {@link com.google.common.collect.testing.ListTestSuiteBuilder}.
 *
 * @author Chris Povirk
 */
@GwtCompatible(emulated = true)

Bất kì tích hợp nào được thiết kế để sử dụng đơn giản (với các dependency), đến nỗi bạn có thể tạo một "plug-in" cho ứng dụng của mình trong 2 dòng code bằng cách sử dụng cùng một cấu trúc và cú pháp được sử dụng cho *path operations* của bạn.

### Đã được kiểm thử

* 100% <abbr title=" Lượng code đã được kiểm thử tự động">test coverage</abbr>.

// The opening parenthesis has been absorbed.
func (in *Input) argsFor(macro *Macro) map[string][]Token {
	var args [][]Token
	// One macro argument per iteration. Collect them all and check counts afterwards.
	for argNum := 0; ; argNum++ {
		tokens, tok := in.collectArgument(macro)
		args = append(args, tokens)
		if tok == ')' {
			break
		}
	}

   * the request has become less ready for future requests", i.e. its caches become stale, and
   * requests become more likely to trigger expensive operations (a more extreme case of this
   * example is when a server has just booted, and it is mostly busy with getting itself up to
   * speed).
   *

}

func testListObjectsVersionedFolders(obj ObjectLayer, instanceType string, t1 TestErrHandler) {
	t, _ := t1.(*testing.T)
	testBuckets := []string{
		// This bucket is used for testing ListObject operations.
		"test-bucket-folders",
		// This bucket has file delete marker.
		"test-bucket-files",
	}
	for _, bucket := range testBuckets {
		err := obj.MakeBucket(context.Background(), bucket, MakeBucketOptions{

		if retries > 10 {
			err := o.checkMetacacheState(ctx, rpc)
			if err != nil {
				return entries, fmt.Errorf("remote listing canceled: %w", err)
			}
			retries = 1
		}

		// All operations are performed without locks, so we must be careful and allow for failures.
		// Read metadata associated with the object from a disk.
		if retries > 0 {
			for _, disk := range er.getDisks() {
				if disk == nil {

import java.util.concurrent.locks.Condition;
import java.util.concurrent.locks.Lock;
import org.checkerframework.checker.nullness.qual.Nullable;

/**
 * Utilities for treating interruptible operations as uninterruptible. In all cases, if a thread is
 * interrupted during such a call, the call continues to block until the result is available or the
 * timeout elapses, and only then re-interrupts the thread.
 *

		}
	}
	config.Lock()
	delete(config.Tiers, tier)
	delete(config.drivercache, tier)
	config.Unlock()
	return nil
}

// Verify verifies if tier's config is valid by performing all supported
// operations on the corresponding warmbackend.
func (config *TierConfigMgr) Verify(ctx context.Context, tier string) error {
	d, err := config.getDriver(ctx, tier)
	if err != nil {
		return err
	}