Even if your **FastAPI** application uses normal `def` functions instead of `async def`, it is still an `async` application underneath.

The `TestClient` does some magic inside to call the asynchronous FastAPI application in your normal `def` test functions, using standard pytest. But that magic doesn't work anymore when we're using it inside asynchronous functions. By running our tests asynchronously, we can no longer use the `TestClient` inside our test functions.

def magic_data_reader(raw_body: bytes):
    return {
        "size": len(raw_body),
        "content": {
            "name": "Maaaagic",
            "price": 42,
            "description": "Just kiddin', no magic here. ✨",
        },
    }


@app.post(
    "/items/",
    openapi_extra={
        "requestBody": {
            "content": {
                "application/json": {
                    "schema": {

  private fun readJournal() {
    fileSystem.read(journalFile) {
      val magic = readUtf8LineStrict()
      val version = readUtf8LineStrict()
      val appVersionString = readUtf8LineStrict()
      val valueCountString = readUtf8LineStrict()
      val blank = readUtf8LineStrict()

      if (MAGIC != magic ||
        VERSION_1 != version ||
        appVersion.toString() != appVersionString ||

 * caller's responsibility.
 *
 * @author Paul Marks
 * @since 10.0
 */
@Immutable
@GwtCompatible
public final class HostAndPort implements Serializable {
  /** Magic value indicating the absence of a port number. */
  private static final int NO_PORT = -1;

  /** Hostname, IPv4/IPv6 literal, or unvalidated nonsense. */
  private final String host;

    cache.close()
    generateSomeGarbageFiles()
    createJournalWithHeader(DiskLruCache.MAGIC, "0", "100", "2", "")
    createNewCache()
    assertGarbageFilesAllDeleted()
  }

  @Test
  fun openWithInvalidAppVersionClearsDirectory() {
    cache.close()
    generateSomeGarbageFiles()
    createJournalWithHeader(DiskLruCache.MAGIC, "1", "101", "2", "")
    createNewCache()
    assertGarbageFilesAllDeleted()
  }

        };
    assertThat(future.get(0, SECONDS)).isEqualTo("foo");
  }

  public void testEvilFuture_setFuture() throws Exception {
    RuntimeException exception = new RuntimeException("you didn't say the magic word!");
    AbstractFuture<String> evilFuture =
        new AbstractFuture<String>() {
          @Override
          public void addListener(Runnable r, Executor e) {
            throw exception;
          }

/// tip

The important and "magic" thing here is that `get_current_user` will have a different list of `scopes` to check for each *path operation*.

        };
    assertThat(future.get(0, SECONDS)).isEqualTo("foo");
  }

  public void testEvilFuture_setFuture() throws Exception {
    RuntimeException exception = new RuntimeException("you didn't say the magic word!");
    AbstractFuture<String> evilFuture =
        new AbstractFuture<String>() {
          @Override
          public void addListener(Runnable r, Executor e) {
            throw exception;
          }

					<li class="nav-item">
						<a href="${fe:url('/admin/wizard/')}" class="nav-link <c:if test="${param.menuType=='wizard'}">active</c:if>" <c:if test="${param.menuType=='wizard'}">aria-current="page"</c:if>>
							<i class='fa fa-magic nav-icon' aria-hidden="true"></i>
							<p><la:message key="labels.menu_wizard" /></p>
						</a>
					</li>
					</c:if>
					<c:if test="${fe:permission('admin-general-view')}">
					<li class="nav-item">

    }

    /*
     * We need to be able to mock identityHashCode() calls for tests, because it
     * can take 1-10 seconds to find colliding objects. Mocking frameworks that
     * can do magic to mock static method calls still can't do so for a system
     * class, so we need the indirection. In production, Hotspot should still
     * recognize that the call is 1-morphic and should still be willing to