assertNull(ex.getRootCause(), "Root cause should be null by default");
        assertTrue(ex instanceof SmbException, "Should be an SmbException subtype");
    }

    /**
     * Ensures the exception is thrown and captured via assertThrows with the right message.
     */
    @Test
    void assertThrowsCapturesExceptionAndMessage() {
        // Act & Assert
        SmbEndOfFileException thrown = assertThrows(SmbEndOfFileException.class, () -> {

    """
    When a dependency with yield raises after the streaming response already started
    the 200 status code is already sent, but there's still an error in the server
    afterwards, an exception is raised and captured or shown in the server logs.
    """
    with TestClient(app, raise_server_exceptions=False) as client:
        response = client.get("/broken-session-stream")
        assert response.status_code == 200

        // Capture one known interaction to verify argument integrity
        ArgumentCaptor<Integer> codeCap = ArgumentCaptor.forClass(Integer.class);
        ArgumentCaptor<String> msgCap = ArgumentCaptor.forClass(String.class);
        verify(handler, atLeastOnce()).handle(codeCap.capture(), msgCap.capture());

        // Assert at least one captured pair is a known mapping (happy path spot check)

        // Act
        boolean result = handle.hasCapability(cap);

        // Assert: verify return and the captured argument equals input
        assertTrue(result);
        ArgumentCaptor<Integer> captor = ArgumentCaptor.forClass(Integer.class);
        verify(handle, times(1)).hasCapability(captor.capture());
        assertEquals(cap, captor.getValue());
    }

    @Test

    @Override
    public Instant instant() {
        long elapsedNanos = System.nanoTime() - startNanos;
        return startInstant.plusNanos(elapsedNanos);
    }

    /**
     * Returns the wall clock time captured when this monotonic clock was initialized.
     * <p>
     * This instant serves as the base time from which all subsequent {@link #instant()}
     * calls are calculated by adding the elapsed monotonic duration. This ensures

        ArgumentCaptor<Integer> rnCap = ArgumentCaptor.forClass(Integer.class);

        verify(transport).getDfsReferrals(eq(ctx), nameCap.capture(), hostCap.capture(), domCap.capture(), rnCap.capture());
        assertEquals(name, nameCap.getValue());
        assertEquals(host, hostCap.getValue());
        assertEquals(domain, domCap.getValue());
        assertEquals(rn, rnCap.getValue());

before a garbage collection delays that cycle. Less frequent cycles means
the CPU cost of the garbage collector is incurred less frequently.

This functionality in this package is mostly captured in the Arena type.
Arenas allocate large chunks of memory for Go values, so they're likely to
be inefficient for allocating only small amounts of small Go values. They're

                fail("Expected IOException due to short-circuit");
            } catch (IOException expected) {
                // expected
            }

            // Assert captured request parameters
            verify(mockTree).send(cap.capture(), any(jcifs.internal.CommonServerMessageBlockResponse.class), any(RequestParam.class));
            jcifs.internal.smb1.com.SmbComReadAndX req = cap.getValue();

		// will default to sha256([]byte("")).
		defaultSha256Cksum = emptySHA256
		v, ok = r.Header[xhttp.AmzContentSha256]
	}

	// We found 'X-Amz-Content-Sha256' return the captured value.
	if ok {
		return v[0]
	}

	// We couldn't find 'X-Amz-Content-Sha256'.
	return defaultSha256Cksum
}

// isValidRegion - verify if incoming region value is valid with configured Region.

### Dependencies with `yield` and `except`, Technical Details { #dependencies-with-yield-and-except-technical-details }

Before FastAPI 0.110.0, if you used a dependency with `yield`, and then you captured an exception with `except` in that dependency, and you didn't raise the exception again, the exception would be automatically raised/forwarded to any exception handlers or the internal server error handler.