public String toString() {
      return "IsOdd";
    }
  }

  /**
   * Generates a new Predicate per call.
   *
   * <p>Creating a new Predicate each time helps catch cases where code is using {@code x == y}
   * instead of {@code x.equals(y)}.
   */
  private static IsOdd isOdd() {
    return new IsOdd();
  }

  /*
   * Tests for Predicates.alwaysTrue().
   */

  public void testAlwaysTrue_apply() {

import java.util.concurrent.TimeoutException;
import junit.framework.AssertionFailedError;
import org.jspecify.annotations.NullMarked;
import org.jspecify.annotations.Nullable;

/** Replacements for JUnit's {@code assertThrows} that work under GWT/J2CL. */
@GwtCompatible
@NullMarked
final class ReflectionFreeAssertThrows {
  interface ThrowingRunnable {
    void run() throws Throwable;
  }

  interface ThrowingSupplier {

Und normalerweise ist es ein komplexes und „schwieriges“ Thema.

In vielen Frameworks und Systemen erfordert allein die Handhabung von Sicherheit und Authentifizierung viel Aufwand und Code (in vielen Fällen kann er 50 % oder mehr des gesamten geschriebenen Codes ausmachen).

/**
 * Test class for SmbException functionality
 */
@DisplayName("SmbException Tests")
class SmbExceptionTest extends BaseTest {

    @Test
    @DisplayName("Should create SmbException with NT status code")
    void testSmbExceptionWithNTStatus() {
        // Given
        int ntStatus = NtStatus.NT_STATUS_ACCESS_DENIED;

        // When
        SmbException exception = new SmbException(ntStatus, false);

        // Verify the method was called
        verify(mockResponse, times(1)).getGrantedCredits();
    }

    @Test
    void testGetErrorCode() {
        // Simulate error code
        when(mockResponse.getErrorCode()).thenReturn(-1);
        assertEquals(-1, mockResponse.getErrorCode());

        // Verify the method was called
        verify(mockResponse, times(1)).getErrorCode();
    }

// Copyright 2012 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

package bytes

import (
	"errors"
	"io"
	"unicode/utf8"
)

// A Reader implements the [io.Reader], [io.ReaderAt], [io.WriterTo], [io.Seeker],
// [io.ByteScanner], and [io.RuneScanner] interfaces by reading from
// a byte slice.

     */
    public static final String PARENT_URL = "parentUrl";

    /**
     * Field name for status.
     */
    public static final String STATUS = "status";

    /**
     * Field name for HTTP status code.
     */
    public static final String HTTP_STATUS_CODE = "httpStatusCode";

    /**
     * Field name for method.
     */
    public static final String METHOD = "method";

    /**

    // Ordinarily we'd use something like i += Character.charCount(string.codePointAt(i)) here. But
    // we can get away with i++ because the whole point of this method is to return false if we find
    // a code point that doesn't fit in a char.
    for (int i = 0; i < string.length(); i++) {
      if (string.codePointAt(i) > 0xffff) {
        return false;
      }
    }
    return true;
  }

import java.util.Arrays;
import java.util.List;
import java.util.Objects;
import junit.framework.TestCase;
import org.jspecify.annotations.NullMarked;
import org.jspecify.annotations.Nullable;

/**
 * Tests for {@code GeneralRange}.
 *
 * @author Louis Wasserman
 */
@GwtCompatible
@NullMarked
public class GeneralRangeTest extends TestCase {
  private static final Ordering<@Nullable Integer> ORDERING =

---

## 디자인

그 후, **FastAPI** 사용자가 될 개발자로서 사용하고 싶은 개발자 "API"를 디자인했습니다.

[Python Developer Survey](https://www.jetbrains.com/research/python-developers-survey-2018/#development-tools)에 따르면 약 80%의 Python 개발자가 PyCharm, VS Code, Jedi 기반 편집기 등에서 개발합니다. 이 과정에서 여러 아이디어를 테스트했습니다.

대부분의 다른 편집기도 유사하게 동작하기 때문에, **FastAPI**의 이점은 거의 모든 편집기에서 누릴 수 있습니다.

이 과정을 통해 코드 중복을 최소화하고, 모든 곳에서 자동 완성, 타입 검사, 에러 확인 기능이 제공되는 최적의 방식을 찾아냈습니다.