diff --git a/useCase/src/test/scala/com/github/BambooTuna/LoadTest/usecase/AddUserUseCaseImplSpec.scala b/useCase/src/test/scala/com/github/BambooTuna/LoadTest/usecase/AddUserUseCaseImplSpec.scala
new file mode 100644
index 0000000..d675eb2
--- /dev/null
+++ b/useCase/src/test/scala/com/github/BambooTuna/LoadTest/usecase/AddUserUseCaseImplSpec.scala
@@ -0,0 +1,35 @@
+package com.github.BambooTuna.LoadTest.usecase
+
+import com.github.BambooTuna.LoadTest.domain.model.user.{Age, Name, UserId}
+import com.github.BambooTuna.LoadTest.usecase.LoadTestProtocol.{AddUserCommandRequest, AddUserCommandSucceeded}
+import monix.execution.CancelableFuture
+import monix.execution.Scheduler.Implicits.global
+import org.scalatest.concurrent.ScalaFutures
+import org.scalatest.{FreeSpecLike, Matchers}
+
+class AddUserUseCaseImplSpec()
+  extends FreeSpecLike
+    with Matchers
+    with ScalaFutures
+{
+  val userRepositoryMock = new UserRepositoryOnJDBCMock
+  val addUserUseCaseImpl = new AddUserUseCaseImpl(userRepositoryMock)
+
+  "AddUserUseCaseImplSpec" - {
+
+    "run" in {
+
+      val name = Name("a")
+      val age = Age(1)
+      val response = addUserUseCaseImpl
+        .run(AddUserCommandRequest(name, age))
+        .runToFuture
+
+      response.futureValue shouldBe AddUserCommandSucceeded(UserId())
+
+    }
+
+  }
+
+
+}
diff --git a/useCase/src/test/scala/com/github/BambooTuna/LoadTest/usecase/UserRepositoryOnJDBCMock.scala b/useCase/src/test/scala/com/github/BambooTuna/LoadTest/usecase/UserRepositoryOnJDBCMock.scala
new file mode 100644
index 0000000..b55c5c4
--- /dev/null
+++ b/useCase/src/test/scala/com/github/BambooTuna/LoadTest/usecase/UserRepositoryOnJDBCMock.scala
@@ -0,0 +1,24 @@
+package com.github.BambooTuna.LoadTest.usecase
+
+import com.github.BambooTuna.LoadTest.adaptor.storage.repository.jdbc.UserRepositoryOnJDBC
+import monix.eval.Task
+
+class UserRepositoryOnJDBCMock extends UserRepositoryOnJDBC {
+
+  override def get(id: Id): Task[Option[Record]] = ???
+
+  override def getMulti(ids: Seq[Id]): Task[Seq[Record]] = ???
+
+  override def put(record: Record): Task[Long] = Task.pure(1L)
+
+  override def putMulti(records: Seq[Record]): Task[Long] = ???
+
+  override def delete(id: Id): Task[Long] = ???
+
+  override def deleteMulti(ids: Seq[Id]): Task[Long] = ???
+
+  override def softDelete(id: Id): Task[Long] = ???
+
+  override def softDeleteMulti(ids: Seq[Id]): Task[Long] = ???
+
+}