msbaek

public class Divider {
  public int divide(int dividend, int divisor) {
    if (divisor == null) {
      throw new IllegalArgumentException("divisor must not be null");
    }
    if (dividend == null) {
      throw new IllegalArgumentException("dividend must not be null");
    }
    if (divisor == 0) {
      throw new IllegalArgumentException("divisor must not be 0");

msbaek

public class Divider {
  public int divide(int dividend, int divisor) {
    if (divisor != null) {
      if(dividend != null) {
        if (divisor != 0) {
          return dividend / divisor;
        } else {
          throw new IllegalArgumentException("divisor must not be 0");
        }
      } else {

msbaek

public class Divider {
  public int divide(int dividend, int divisor) {
    return dividend / divisor;
  }
}

msbaek

import { calc, search } from '@/pages/goodsList/search';

describe('search api', () => {
  it('search api를 호출한다.', async () => {
    const { data } = await search({ keyword: 'blackpink' });
    // console.log(data);
    expect(data).toMatchSnapshot();
  });
});

msbaek

@Configuration
class CorsConfiguration {
    @Bean
    WebMvcConfigurer corsConfigurer() {
        return new WebMvcConfigurer() {
            @Override
            public void addCorsMappings(final CorsRegistry registry) {
                registry.addMapping("/**")
                        .allowedHeaders("*")
                        .allowedMethods("*")

msbaek

@Test
void queryDslQueryTest() {
    JPAQuery<StatusCommonTemplateExcelData> query =
        jpaQueryFactory.select(
                           Projections.constructor(
                               StatusCommonTemplateExcelData.class,
                               Expressions.stringTemplate("'집품'"),
                               qWarehouse.name,            // "창고"
                               qPacking.status,            // "포장 상태"
                               qShipping.deliverySeq,      // "배송 ID"

msbaek

// mapstruct
annotationProcessor "org.mapstruct:mapstruct-processor:$mapstructVersion"
implementation "org.mapstruct:mapstruct:$mapstructVersion"


[For Java Developers: Forget BeanUtils and Trade for Performance and Code Simplicity by MapStruct | by Malvin Lok | Feb, 2024 | Medium](https://medium.com/@malvin.lok/for-java-developers-forget-beanutils-and-trade-for-performance-and-code-simplicity-by-mapstruct-b8934c830094)

@Data
@Builder
@AllArgsConstructor

msbaek

// loading load runner
@Bean
public ApplicationRunner runner(BalanceRepository balanceRepository) {
    return args -> {
        // ...
    };
}

@Component
public class DataLoader implements CommandLineRunner {

msbaek

pom.xml
<!-- Encryption Library -->
<dependency>
    <groupId>com.github.ulisesbocchio</groupId>
    <artifactId>jasypt-spring-boot-starter</artifactId>
    <version>3.0.2</version>
</dependency>
<dependency>
    <groupId>org.bouncycastle</groupId>
    <artifactId>bcprov-jdk15on</artifactId>

msbaek

import org.junit.Rule;
import org.junit.Test;
import org.springframework.boot.test.rule.OutputCapture;

import static org.hamcrest.Matchers.containsString;

public class OutputCaptureTest {
    @Rule
    public OutputCapture output = new OutputCapture();