test: APSendFollowServiceImplのテストを追加

src/test/kotlin/dev/usbharu/hideout/service/ap/APSendFollowServiceImplTest.kt

@@ -0,0 +1,36 @@
+package dev.usbharu.hideout.service.ap
+
+import dev.usbharu.hideout.domain.model.ap.Follow
+import dev.usbharu.hideout.domain.model.hideout.dto.SendFollowDto
+import kotlinx.coroutines.test.runTest
+import org.junit.jupiter.api.Test
+import org.mockito.kotlin.eq
+import org.mockito.kotlin.mock
+import org.mockito.kotlin.times
+import org.mockito.kotlin.verify
+import utils.UserBuilder
+
+class APSendFollowServiceImplTest {
+    @Test
+    fun `sendFollow フォローするユーザーのinboxにFollowオブジェクトが送られる`() = runTest {
+        val apRequestService = mock<APRequestService>()
+        val apSendFollowServiceImpl = APSendFollowServiceImpl(apRequestService)
+
+        val sendFollowDto = SendFollowDto(
+            UserBuilder.localUserOf(),
+            UserBuilder.remoteUserOf()
+        )
+        apSendFollowServiceImpl.sendFollow(sendFollowDto)
+
+        val value = Follow(
+            name = "Follow",
+            `object` = sendFollowDto.followTargetUserId.url,
+            actor = sendFollowDto.userId.url
+        )
+        verify(apRequestService, times(1)).apPost(
+            eq(sendFollowDto.followTargetUserId.inbox),
+            eq(value),
+            eq(sendFollowDto.userId)
+        )
+    }
+}