dummy ^= sb.toString().length();
    }
    return dummy;
  }

  /**
   * Similar to the above, but keeps a boolean flag rather than checking for the string accumulated
   * so far being empty. As a result, it does not have the above-mentioned bug.
   */
  @Benchmark
  int booleanIfFirst(int reps) {
    int dummy = 0;
    for (int i = 0; i < reps; i++) {
      StringBuilder sb = new StringBuilder();

    final boolean[] called = new boolean[1];
    f.addCallback(
        new FutureCallback<String>() {
          @Override
          public void onSuccess(String result) {
            called[0] = true;
          }

          @Override
          public void onFailure(Throwable t) {}
        },
        directExecutor());
    assertThat(called[0]).isTrue();
  }

	ctx, cancelFunc := context.WithCancel(ctx)
	cancelFunc()

	user := *GetUser("cancel_transaction", Config{})
	DB.Create(&user)

	err := DB.WithContext(ctx).Transaction(func(tx *gorm.DB) error {
		var result User
		tx.First(&result, user.ID)
		return nil
	})

	if err == nil {
		t.Fatalf("Transaction should get error when using cancelled context")
	}
}

func TestTransactionWithBlock(t *testing.T) {

        final SimpleProblemCollector collector = new SimpleProblemCollector();
        Model result = interpolator.interpolateModel(model, basedir, createModelBuildingRequest(context), collector);
        assertProblemFree(collector);

        List<Dependency> rDeps = result.getDependencies();
        assertNotNull(rDeps);
        assertEquals(1, rDeps.size());
        assertEquals(

		inputReq.URL.RawQuery = q.Encode()
		inputReq.ParseForm()

		actualResult := isRequestPresignedSignatureV2(inputReq)
		if testCase.expectedResult != actualResult {
			t.Errorf("Test %d: Expected the result to `%v`, but instead got `%v`", i+1, testCase.expectedResult, actualResult)
		}
	}
}

// TestIsRequestPresignedSignatureV4 - Test validates the logic for presign signature version v4 detection.

         *
         * @throws NullPointerException if passed in buffer is {@code null}.
         */
        void update(@Nonnull ByteBuffer input);

        /**
         * Returns the algorithm end result as string, never {@code null}. After invoking this method, this instance should
         * be discarded and not reused. For new checksum calculation you have to get new instance.
         */
        @Nonnull

	buf := NewBuffer(testBytes)
	check(t, "NewBuffer", buf, testString)
}

var buf Buffer

// Calling NewBuffer and immediately shallow copying the Buffer struct
// should not result in any allocations.
// This can be used to reset the underlying []byte of an existing Buffer.
func TestNewBufferShallow(t *testing.T) {
	testenv.SkipIfOptimizationOff(t)
	n := testing.AllocsPerRun(1000, func() {
		buf = *NewBuffer(testBytes)

    // Removing 8 while iterating caused duplicates in iteration result.
    List<Integer> result = Lists.newArrayListWithCapacity(initial.size());
    for (Iterator<Integer> iter = q.iterator(); iter.hasNext(); ) {
      Integer value = iter.next();
      result.add(value);
      if (value == 8) {
        iter.remove();
      }
    }
    assertIntact(q);
    assertThat(result).containsExactly(1, 15, 13, 8, 14);
  }

  /**

    ImmutableSortedMap<K, V> result = descendingMap;
    if (result == null) {
      if (isEmpty()) {
        return emptyMap(Ordering.from(comparator()).reverse());
      } else {
        return new ImmutableSortedMap<>(
            (RegularImmutableSortedSet<K>) keySet.descendingSet(), valueList.reverse(), this);
      }
    }
    return result;
  }

  @Override

 * of a {@code SortedSetMultimap} in a way that affects its {@link Object#equals} behavior (or its
 * position in the order of the values). Undefined behavior and bugs will result.
 *
 * <p>See the Guava User Guide article on <a href=
 * "https://github.com/google/guava/wiki/NewCollectionTypesExplained#multimap">{@code Multimap}</a>.
 *
 * @author Jared Levy
 * @since 2.0
 */
@GwtCompatible