<div id="readability-page-1" class="page"><div>kotest에서 빈을 생성자 주입으로 쓰려고 하면, Specs must have a public zero-arg constructor 오류가 발생 할 수 있다.&nbsp;
이 때에는 kotest-extension-spring 모듈이 필요로 하다.&nbsp;
kotest extension spring 라이브러리가 두개가 검색 되곤 하는데, 헷갈리면 안된다.&nbsp;
<a href="https://kotest.io/docs/extensions/spring.html" target="_blank" rel="noopener">https://kotest.io/docs/extensions/spring.html</a>
<figure id="og_1689680811091" contenteditable="false" data-ke-type="opengraph" data-ke-align="alignCenter" data-og-type="website" data-og-title="Spring | Kotest" data-og-description="Kotest offers a Spring extension that allows you to test code that uses the Spring framework for dependency injection." data-og-host="kotest.io" data-og-source-url="https://kotest.io/docs/extensions/spring.html" data-og-url="https://kotest.io/docs/extensions/spring.html" data-og-image="https://scrap.kakaocdn.net/dn/pBzGv/hyTmoeH151/HbhY3YCw7paU7O0kNI2Lu1/img.png?width=2396&amp;height=2396&amp;face=0_0_2396_2396,https://scrap.kakaocdn.net/dn/d05rSm/hyTmDiDH4g/q8T2k20xIweqs6RqHhFsy1/img.png?width=2396&amp;height=2396&amp;face=0_0_2396_2396"><a href="https://kotest.io/docs/extensions/spring.html" target="_blank" rel="noopener" data-source-url="https://kotest.io/docs/extensions/spring.html">

<div>
Spring | Kotest
Kotest offers a Spring extension that allows you to test code that uses the Spring framework for dependency injection.
kotest.io
</div>
</a><img src="https://scrap.kakaocdn.net/dn/pBzGv/hyTmoeH151/HbhY3YCw7paU7O0kNI2Lu1/img.png?width=2396&amp;height=2396&amp;face=0_0_2396_2396,https://scrap.kakaocdn.net/dn/d05rSm/hyTmDiDH4g/q8T2k20xIweqs6RqHhFsy1/img.png?width=2396&amp;height=2396&amp;face=0_0_2396_2396"></figure>
실제 docs를 보면, 1.1.3 버전이 최신이다.&nbsp;
<a href="https://mvnrepository.com/artifact/io.kotest/kotest-extensions-spring/4.4.3" target="_blank" rel="noopener">https://mvnrepository.com/artifact/io.kotest/kotest-extensions-spring/4.4.3</a>
위의 라이브러리는 지원이 중단 된 것인지, 이미 오래 전 소스의 라이브러리이고, 실제 kotest repository에는 해당 소스가 없다.&nbsp;
<a href="https://github.com/kotest/kotest-extensions-spring" target="_blank" rel="noopener">https://github.com/kotest/kotest-extensions-spring</a>
<figure id="og_1689680872671" contenteditable="false" data-ke-type="opengraph" data-ke-align="alignCenter" data-og-type="object" data-og-title="GitHub - kotest/kotest-extensions-spring: Kotest extension for Spring framework" data-og-description="Kotest extension for Spring framework. Contribute to kotest/kotest-extensions-spring development by creating an account on GitHub." data-og-host="github.com" data-og-source-url="https://github.com/kotest/kotest-extensions-spring" data-og-url="https://github.com/kotest/kotest-extensions-spring" data-og-image="https://scrap.kakaocdn.net/dn/Ctdam/hyTms9eK8p/W1iv4GKS90etWayHyz22lk/img.png?width=1200&amp;height=600&amp;face=0_0_1200_600"><a href="https://github.com/kotest/kotest-extensions-spring" target="_blank" rel="noopener" data-source-url="https://github.com/kotest/kotest-extensions-spring">

<div>
GitHub - kotest/kotest-extensions-spring: Kotest extension for Spring framework
Kotest extension for Spring framework. Contribute to kotest/kotest-extensions-spring development by creating an account on GitHub.
github.com
</div>
</a><img src="https://scrap.kakaocdn.net/dn/Ctdam/hyTms9eK8p/W1iv4GKS90etWayHyz22lk/img.png?width=1200&amp;height=600&amp;face=0_0_1200_600"></figure>
위의 레포지토리가 진짜다.&nbsp;
아, 지난번에도 헷갈려서 test code 작성하다가 삽질 했는데, 오늘도 삽질 엄청나게 했다.
그리고, test 디렉토리 아래 설정을 넣어주는 게 중요하다.&nbsp;
<pre id="code_1689681012755" data-ke-language="kotlin" data-ke-type="codeblock"><code>import io.kotest.core.config.AbstractProjectConfig
import io.kotest.extensions.spring.SpringExtension

class ProjectConfig : AbstractProjectConfig() {
 override fun extensions() = listOf(SpringExtension)
 override val parallelism = 3
}</code></pre>
<pre id="code_1689681089672" data-ke-language="kotlin" data-ke-type="codeblock"><code>@SpringBootTest(
 classes = [GrpcServerApiApplication::class]
)
@ActiveProfiles("test")
@TestConstructor(autowireMode = TestConstructor.AutowireMode.ALL)
class GrpcHelloServiceTest(
 val grpcHelloService: GrpcHelloService
) : AnnotationSpec() {

...

}</code></pre>
위처럼 설정 하면, 실제로 정상적으로 테스트가 성공 하게 되는데, 라이브러리를 잘 못 넣으면 온갖 행동을 해도 안돌아간다.
까먹지 말자.</div></div>

Seungdols Company

seungdols

kotest에서 빈을 생성자 주입으로 쓰려고 하면, Specs must have a public zero-arg constructor 오류가 발생 할 수 있다. 이 때에는 kotest-extension-spring 모듈이 필요로 하다. kotest extension spring 라이브러리가 두개가 검색 되곤 하는데, 헷갈리면 안된다. https://kotest.io/docs/extensions/spring.html Spring | Kotest Kot..

kotest 생성자 bean 주입 오류 - Specs must have a public zero-arg constructor

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