char[] clonedPassword = (char[]) passwordField.get(cloned);

        assertNotSame(originalPassword, clonedPassword, "Cloned password should be a different array instance");
        assertArrayEquals(originalPassword, clonedPassword, "Cloned password content should match");

        // Wipe original - should not affect clone
        authenticator.secureWipePassword();

///

## Separating tests { #separating-tests }

In a real application, you probably would have your tests in a different file.

And your **FastAPI** application might also be composed of several files/modules, etc.

### **FastAPI** app file { #fastapi-app-file }

/// tip | 팁

테스트에 비동기 함수 호출을 통합할 때(예: [MongoDB의 MotorClient](https://stackoverflow.com/questions/41584243/runtimeerror-task-attached-to-a-different-loop)를 사용할 때) `RuntimeError: Task attached to a different loop`를 마주친다면, 이벤트 루프가 필요한 객체는 async 함수 안에서만 인스턴스화해야 한다는 점을 기억하세요. 예를 들어 `@app.on_event("startup")` 콜백에서 인스턴스화할 수 있습니다.

//
// You should have received a copy of the GNU Affero General Public License
// along with this program.  If not, see <http://www.gnu.org/licenses/>.

package mcontext

// Share a common context information between different
// packages in github.com/minio/minio

import (
	xhttp "github.com/minio/minio/internal/http"
)

// ContextTraceType represents the type of golang Context key
type ContextTraceType string

        @Override
        public CredentialsInternal renew() {
            // Returns null to represent an implementation that could not renew
            return null;
        }
    }

    // Provide different implementation behaviors to a parameterized test
    static Stream<Arguments> implementations() {
        return Stream.of(Arguments.of("returns self", (Supplier<SmbRenewableCredentials>) SelfRenewingCreds::new, true, false),

import static org.junit.jupiter.api.Assertions.assertTrue;
import static org.mockito.Mockito.mock;
import static org.mockito.Mockito.when;

/**
 * Unit tests for the {@link ConsoleIcon} enum.
 * Tests icon rendering with different terminal charsets and fallback behavior.
 */
@DisplayName("ConsoleIcon")
class ConsoleIconTest {

    @Test
    @DisplayName("should return Unicode icons when terminal supports UTF-8")

	s2, err := os.Lstat(filepath.Dir(strings.TrimSuffix(path, "/")))
	if err != nil {
		return false
	}

	// If the directory has a different device as parent, then it is a mountpoint.
	ss1, ok1 := s1.Sys().(*syscall.Stat_t)
	ss2, ok2 := s2.Sys().(*syscall.Stat_t)
	return ok1 && ok2 &&
		// path/.. on a different device as path
		(ss1.Dev != ss2.Dev ||
			// path/.. is the same i-node as path - this check is for bind mounts.
			ss1.Ino == ss2.Ino)

    void testWriteSetupWireFormat() {
        byte[] dst = new byte[100];
        int result = response.writeSetupWireFormat(dst, 0);
        assertEquals(0, result);

        // Test with different offset
        result = response.writeSetupWireFormat(dst, 50);
        assertEquals(0, result);
    }

    @Test
    @DisplayName("Test writeParametersWireFormat returns 0")

   * Content-Type: text/html
   * Content-Length: 50
   * ```
   *
   * 2. Different order
   *
   * ```
   * Content-Length: 50
   * Content-Type: text/html
   * ```
   *
   * 3. Different case
   *
   * ```
   * content-type: text/html
   * content-length: 50
   * ```
   *
   * 4. Different values
   *
   * ```
   * Content-Type: text/html
   * Content-Length: 050

    Raises ValueError if the blocks are not compatible (different languages or different number of lines).
    """

    start_line = block_a["start_line_no"]
    end_line_no = start_line + len(block_a["content"]) - 1

    if block_a["lang"] != block_b["lang"]:
        raise ValueError(
            f"Code block (lines {start_line}-{end_line_no}) "
            "has different language than the original block "