)
    assertInvalid(
      "text/plain; a=\"@",
      "Parameter is not formatted correctly: \"a=\"@\" for: \"text/plain; a=\"@\"",
    )
    assertInvalid(
      "text/plain; a=1; b",
      "Parameter is not formatted correctly: \"b\" for: \"text/plain; a=1; b\"",
    )
    assertInvalid(
      "text/plain; a=1; b=",

## Pin your `fastapi` version

The first thing you should do is to "pin" the version of **FastAPI** you are using to the specific latest version that you know works correctly for your application.

For example, let's say you are using version `0.45.0` in your app.

    } finally {
      executor.shutdownNow();
    }

    assertTrue(future.isDone());
    assertFalse(future.isCancelled());
  }

  /** Tests that the {@link Future#get(long, TimeUnit)} method times out correctly. */
  public void testTimeoutOnGetWorksCorrectly() throws InterruptedException, ExecutionException {

    // The task thread waits for the latch, so we expect a timeout here.
    try {
      future.get(20, MILLISECONDS);

You will see the automatic API docs for the sub-application, including only its own _path operations_, all under the correct sub-path prefix `/subapi`:

<img src="/img/tutorial/sub-applications/image02.png">

If you try interacting with any of the two user interfaces, they will work correctly, because the browser will be able to talk to each specific app or sub-app.

### Technical Details: `root_path`

// unless that metadata is needed in order to allow a subsequent data retrieval
// to  be  correctly  handled.   For example, changes to st_atime or st_mtime
// (respectively, time of last access and time of last modification; see inode(7))
// do not require flushing because they are not necessary for a subsequent data
// read to be handled correctly. On the other hand, a change to the file size

/**
 * Abstract base class for tests that EventBus finds the correct subscribers.
 *
 * <p>The actual tests are distributed among the other classes in this package based on whether they
 * are annotated or abstract in the superclass.
 *
 * <p>This test must be outside the c.g.c.eventbus package to test correctly.
 *
 * @author Louis Wasserman
 */
abstract class AbstractEventBusTest<H> extends TestCase {

  }

  /*
   * This is somewhat of a weak test; we verify that all of the methods are
   * correct, but not that they're actually forwarding correctly. We also rely
   * on the other tests (e.g., SynchronizedSetTest) to verify that the
   * collection views are synchronized correctly.
   */

  public void testSize() {
    int unused = create().size();
  }

  public void testIsEmpty() {

 * limitations under the License.
 */

package com.google.common.collect.testing;

import com.google.common.annotations.GwtCompatible;

/**
 * Simple derived class to verify that we handle generics correctly.
 *
 * @author Kevin Bourrillion
 */
@GwtCompatible
public class DerivedComparable extends BaseComparable {
  public DerivedComparable(String s) {
    super(s);
  }

    } finally {
      executor.shutdownNow();
    }

    assertTrue(future.isDone());
    assertFalse(future.isCancelled());
  }

  /** Tests that the {@link Future#get(long, TimeUnit)} method times out correctly. */
  public void testTimeoutOnGetWorksCorrectly() throws InterruptedException, ExecutionException {

    // The task thread waits for the latch, so we expect a timeout here.
    try {
      future.get(20, MILLISECONDS);

  @Override
  public int compare(Object left, Object right) {
    return left.toString().compareTo(right.toString());
  }

  // preserve singleton-ness, so equals() and hashCode() work correctly
  private Object readResolve() {
    return INSTANCE;
  }

  @Override
  public String toString() {
    return "Ordering.usingToString()";
  }

  private UsingToStringOrdering() {}