Spring REST Docs1 - 기본설정 get (url) 질문

plugins {
    id 'java'
    id 'org.springframework.boot' version '2.7.17'
    id 'io.spring.dependency-management' version '1.0.15.RELEASE'
    id "org.asciidoctor.jvm.convert" version "3.3.2"
}

group = 'com.blog'
version = '0.0.1-SNAPSHOT'

java {
    sourceCompatibility = '11'
}

configurations {
    compileOnly {
        extendsFrom annotationProcessor
    }

    asciidoctorExt
}

repositories {
    mavenCentral()
}

ext {
    asciidocVersion = "2.0.6.RELEASE"
    snippetsDir = file('build/generated-snippets')
}

dependencies {
    implementation 'org.springframework.boot:spring-boot-starter-data-jpa'
    implementation 'org.springframework.boot:spring-boot-starter-web'
    implementation 'org.springframework.boot:spring-boot-starter-validation'

    implementation 'com.querydsl:querydsl-core'
    implementation 'com.querydsl:querydsl-jpa'

    asciidoctorExt "org.springframework.restdocs:spring-restdocs-asciidoctor:${asciidocVersion}"
    testImplementation "org.springframework.restdocs:spring-restdocs-mockmvc:${asciidocVersion}"

    annotationProcessor "com.querydsl:querydsl-apt:${dependencyManagement.importedProperties['querydsl.version']}:jpa"
    annotationProcessor 'jakarta.persistence:jakarta.persistence-api'
    annotationProcessor 'jakarta.annotation:jakarta.annotation-api'

    compileOnly 'org.projectlombok:lombok'
    runtimeOnly 'com.h2database:h2'
    annotationProcessor 'org.projectlombok:lombok'
    testImplementation 'org.springframework.boot:spring-boot-starter-test'
}

tasks.named('test') {
    useJUnitPlatform()
}

test {
    outputs.dir snippetsDir
}


asciidoctor {
    inputs.dir snippetsDir
    configurations 'asciidoctorExt'
    dependsOn test
}

bootJar {
    dependsOn asciidoctor
    from ("${asciidoctor.outputDir}/html5") {
        into 'static/docs'
    }
}

package com.blog.api.controller;


import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.DisplayName;
import org.junit.jupiter.api.Test;
import org.junit.jupiter.api.extension.ExtendWith;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.http.MediaType;
import org.springframework.restdocs.RestDocumentationContextProvider;
import org.springframework.restdocs.RestDocumentationExtension;
import org.springframework.test.web.servlet.MockMvc;
import org.springframework.test.web.servlet.setup.MockMvcBuilders;
import org.springframework.web.context.WebApplicationContext;

import static com.querydsl.core.alias.MethodType.get;
import static org.springframework.restdocs.mockmvc.MockMvcRestDocumentation.document;
import static org.springframework.restdocs.mockmvc.MockMvcRestDocumentation.documentationConfiguration;
import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.status;

@SpringBootTest
@ExtendWith(RestDocumentationExtension.class)
public class PostControllerDocTest {

    private MockMvc mockMvc;

    @BeforeEach
    void setUp(WebApplicationContext webApplicationContext, RestDocumentationContextProvider restDocumentation) {
        this.mockMvc = MockMvcBuilders.webAppContextSetup(webApplicationContext)
                .apply(documentationConfiguration(restDocumentation))
                .build();
    }

    @Test
    @DisplayName("아무개")
    void Test1() throws Exception {
        this.mockMvc.perform(get("/").accept(MediaType.APPLICATION_JSON))
                .andExpect(status().isOk())
                .andDo(document("index"));
    }
}

위와 같이 Test1 에서 get("/") 부분에서 url 타입이 계속 안맞다고 하는데요

강의와 똑같이 했는데 뭐가 문제인지 잘 모르겠습니다.