// If a clear() happens close to the end of computation, one of two things should happen:
    // - computation ends first: the removal listener is called, and the cache does not contain the
    //   key/value pair
    // - clear() happens first: the removal listener is not called, and the cache contains the pair
    AtomicBoolean computationShouldWait = new AtomicBoolean();
    CountDownLatch computationLatch = new CountDownLatch(1);

    // If a clear() happens close to the end of computation, one of two things should happen:
    // - computation ends first: the removal listener is called, and the cache does not contain the
    //   key/value pair
    // - clear() happens first: the removal listener is not called, and the cache contains the pair
    AtomicBoolean computationShouldWait = new AtomicBoolean();
    CountDownLatch computationLatch = new CountDownLatch(1);

        file.delete();
        assertFalse(file.exists());

        // ## Act & Assert ##
        // close() should not throw even though the file was already deleted
        cos.close(); // done=true since getFile() was called, so cleanup is skipped
    }

    @Test
    public void testCloseWithoutGetFile_CleansUpTempFile() throws IOException {
        // ## Arrange ##

        assertEquals(0, response.writeDataWireFormat(null, 0));

        // Read methods return 0 without accessing null buffer
        assertEquals(0, response.readSetupWireFormat(null, 0, 0));
        assertEquals(0, response.readParametersWireFormat(null, 0, 0));
        assertEquals(0, response.readDataWireFormat(null, 0, 0));
    }

    @Test
    @DisplayName("Methods should handle empty buffer")

```

A response similar to this one should be displayed:

```
Generating a 3072 bit RSA private key...
```

#### 3.3.3 Generate a public certificate

Create a file called `cert.cnf` with the content below. This file contains all of the information necessary to generate a certificate using `certtool.exe`:

```
# X.509 Certificate options
#
# DN options

// Temp files created in default Tmp dir
var globalTestTmpDir = os.TempDir()

// reseed - returns a new seed every time the function is called.
func reseed() uint32 {
	return uint32(time.Now().UnixNano() + int64(os.Getpid()))
}

// nextSuffix - provides a new unique suffix every time the function is called.
func nextSuffix() string {
	randmu.Lock()
	r := randN
	// Initial seed required, generate one.
	if r == 0 {

    }

    /**
     * Initializes the protocol helper by loading configured protocols from FessConfig
     * and scanning for available protocol handlers in the classpath.
     * This method is called automatically after bean construction.
     */
    @PostConstruct
    public void init() {
        final FessConfig fessConfig = ComponentUtil.getFessConfig();

### Conventions

Once a new property has been introduced, you need to consider what its conventions will be.

A convention is a value for a property that is used when no other opinion has been provided.  Sometimes conventions are called "default values", but this can be confusing because no property has a "default value" upon creation (except for collection-like properties, which start empty).  Conventions need to be explicitly set on a property.

        String result = response.toString();

        // Assert
        assertNotNull(result);
        assertTrue(result.contains("TransPeekNamedPipeResponse"));
        // Verify that parent's toString is called (should contain standard fields)
        assertTrue(result.length() > "TransPeekNamedPipeResponse[]".length());
    }

    @Test
    @DisplayName("Multiple instances should be independent")

{* ../../docs_src/dependencies/tutorial011_an_py310.py hl[12] *}

In this case, this `__call__` is what **FastAPI** will use to check for additional parameters and sub-dependencies, and this is what will be called to pass a value to the parameter in your *path operation function* later.

## Parameterize the instance { #parameterize-the-instance }