diff --git a/src/test/kotlin/roomescape/supports/RestAssuredUtils.kt b/src/test/kotlin/roomescape/supports/RestAssuredUtils.kt
index 301fa68b..69ab256a 100644
--- a/src/test/kotlin/roomescape/supports/RestAssuredUtils.kt
+++ b/src/test/kotlin/roomescape/supports/RestAssuredUtils.kt
@@ -1,6 +1,5 @@
 package roomescape.supports
 
-import io.restassured.module.kotlin.extensions.Extract
 import io.restassured.module.kotlin.extensions.Given
 import io.restassured.module.kotlin.extensions.Then
 import io.restassured.module.kotlin.extensions.When
@@ -8,97 +7,9 @@ import io.restassured.response.Response
 import io.restassured.response.ValidatableResponse
 import io.restassured.specification.RequestSpecification
 import org.hamcrest.CoreMatchers.equalTo
-import org.springframework.data.repository.findByIdOrNull
 import org.springframework.http.HttpMethod
-import org.springframework.http.HttpStatus
 import org.springframework.http.MediaType
-import roomescape.admin.infrastructure.persistence.AdminEntity
-import roomescape.admin.infrastructure.persistence.AdminRepository
-import roomescape.auth.web.LoginRequest
-import roomescape.common.dto.PrincipalType
 import roomescape.common.exception.ErrorCode
-import roomescape.store.infrastructure.persistence.StoreRepository
-import roomescape.user.infrastructure.persistence.UserEntity
-import roomescape.user.infrastructure.persistence.UserRepository
-import roomescape.user.web.UserCreateRequest
-import kotlin.random.Random
-
-class AuthUtil(
-    private val userRepository: UserRepository,
-    private val adminRepository: AdminRepository,
-    private val storeRepository: StoreRepository,
-) {
-    fun createAdmin(admin: AdminEntity): AdminEntity {
-        val storeId = admin.storeId
-        if (storeId != null && storeRepository.findByIdOrNull(storeId) == null) {
-            storeRepository.save(
-                StoreFixture.create(
-                    id = storeId,
-                    businessRegNum = generateBusinessRegNum(),
-                )
-            )
-        }
-
-        return adminRepository.save(admin)
-    }
-
-    fun signup(request: UserCreateRequest): UserEntity {
-        val userId: Long = Given {
-            contentType(MediaType.APPLICATION_JSON_VALUE)
-            body(request)
-        } When {
-            post("/users")
-        } Then {
-            statusCode(HttpStatus.OK.value())
-        } Extract {
-            path("data.id")
-        }
-
-        return userRepository.findByIdOrNull(userId)
-            ?: throw AssertionError("Unexpected Exception Occurred.")
-    }
-
-    fun adminLogin(admin: AdminEntity): String {
-        val saved = createAdmin(admin)
-        val requestBody = LoginRequest(saved.account, saved.password, PrincipalType.ADMIN)
-
-        return Given {
-            contentType(MediaType.APPLICATION_JSON_VALUE)
-            body(requestBody)
-        } When {
-            post("/auth/login")
-        } Then {
-            statusCode(200)
-        } Extract {
-            path("data.accessToken")
-        }
-    }
-
-    fun defaultStoreAdminLogin(): String = adminLogin(AdminFixture.storeDefault)
-    fun defaultHqAdminLogin(): String = adminLogin(AdminFixture.hqDefault)
-
-    fun userLogin(user: UserEntity): String {
-        if (userRepository.findByEmail(user.email) == null) {
-            userRepository.save(user)
-        }
-
-        return Given {
-            contentType(MediaType.APPLICATION_JSON_VALUE)
-            body(LoginRequest(account = user.email, password = user.password, principalType = PrincipalType.USER))
-        } When {
-            post("/auth/login")
-        } Then {
-            statusCode(200)
-        } Extract {
-            path("data.accessToken")
-        }
-    }
-
-    fun defaultUserLogin(): String = userLogin(UserFixture.default)
-
-    fun defaultUser(): UserEntity = userRepository.findByEmail(UserFixture.default.email)
-        ?: userRepository.save(UserFixture.default)
-}
 
 fun runTest(
     token: String? = null,
@@ -184,10 +95,3 @@ fun ValidatableResponse.assertProperties(props: Set<String>, propsNameIfList: St
         else -> error("Unexpected data type: ${json::class}")
     }
 }
-
-private fun generateBusinessRegNum(): String {
-    val part1 = Random.nextInt(100, 1000)
-    val part2 = Random.nextInt(10, 100)
-    val part3 = Random.nextInt(10000, 100000)
-    return "$part1-$part2-$part3"
-}