refactor(can): 캔 사용 내역 조회 로직을 쿼리 기반으로 개선한다

src/test/kotlin/kr/co/vividnext/sodalive/can/CanServiceTest.kt

@@ -0,0 +1,165 @@
+package kr.co.vividnext.sodalive.can
+
+import kr.co.vividnext.sodalive.can.use.CanUsage
+import kr.co.vividnext.sodalive.common.CountryContext
+import kr.co.vividnext.sodalive.member.Member
+import org.junit.jupiter.api.Assertions.assertEquals
+import org.junit.jupiter.api.BeforeEach
+import org.junit.jupiter.api.DisplayName
+import org.junit.jupiter.api.Test
+import org.mockito.Mockito.mock
+import org.mockito.Mockito.`when`
+import org.springframework.data.domain.PageRequest
+import java.time.LocalDateTime
+
+class CanServiceTest {
+    private lateinit var repository: CanRepository
+    private lateinit var countryContext: CountryContext
+    private lateinit var service: CanService
+
+    @BeforeEach
+    fun setUp() {
+        repository = mock(CanRepository::class.java)
+        countryContext = mock(CountryContext::class.java)
+        service = CanService(repository, countryContext)
+    }
+
+    @Test
+    @DisplayName("AOS 컨테이너에 대해 캔 사용 내역이 올바르게 필터링 및 맵핑되는지 확인한다")
+    fun `should filter can use status correctly for aos`() {
+        // given
+        val member = Member(nickname = "user1", password = "password")
+        member.id = 1L
+        val pageable = PageRequest.of(0, 10)
+
+        val useCanDto1 = createUseCanDto(CanUsage.HEART, 10, 0, "nick1", null)
+        val useCanDto2 = createUseCanDto(CanUsage.DONATION, 0, 5, "nick2", null)
+
+        `when`(repository.getCanUseStatus(member, pageable, "aos")).thenReturn(listOf(useCanDto1, useCanDto2))
+
+        // when
+        val result = service.getCanUseStatus(member, pageable, "Asia/Seoul", "aos")
+
+        // then
+        assertEquals(2, result.size)
+        assertEquals("[라이브 후원] nick1", result[0].title)
+        assertEquals(10, result[0].can)
+        assertEquals("[라이브 후원] nick2", result[1].title)
+        assertEquals(5, result[1].can)
+    }
+
+    @Test
+    @DisplayName("iOS 컨테이너에 대해 캔 사용 내역이 올바르게 필터링 및 맵핑되는지 확인한다")
+    fun `should filter can use status correctly for ios`() {
+        // given
+        val member = Member(nickname = "user1", password = "password")
+        member.id = 1L
+        val pageable = PageRequest.of(0, 10)
+
+        val useCanDto1 = createUseCanDto(CanUsage.HEART, 10, 0, "nick1", null)
+        val useCanDto2 = createUseCanDto(CanUsage.DONATION, 10, 0, "nick2", null)
+
+        `when`(repository.getCanUseStatus(member, pageable, "ios")).thenReturn(listOf(useCanDto1, useCanDto2))
+
+        // when
+        val result = service.getCanUseStatus(member, pageable, "Asia/Seoul", "ios")
+
+        // then
+        assertEquals(2, result.size)
+    }
+
+    @Test
+    @DisplayName("조회 결과가 없을 때 빈 리스트를 반환하는지 확인한다")
+    fun `should return empty list when no status exists`() {
+        // given
+        val member = Member(nickname = "user1", password = "password")
+        member.id = 1L
+        val pageable = PageRequest.of(0, 10)
+
+        `when`(repository.getCanUseStatus(member, pageable, "aos")).thenReturn(emptyList())
+
+        // when
+        val result = service.getCanUseStatus(member, pageable, "Asia/Seoul", "aos")
+
+        // then
+        assertEquals(0, result.size)
+    }
+
+    @Test
+    @DisplayName("유효하지 않은 타임존 입력 시 UTC를 기본으로 사용한다")
+    fun `should use UTC when timezone is invalid`() {
+        // given
+        val member = Member(nickname = "user1", password = "password")
+        member.id = 1L
+        val pageable = PageRequest.of(0, 10)
+        val useCanDto = createUseCanDto(CanUsage.HEART, 10, 0)
+
+        `when`(repository.getCanUseStatus(member, pageable, "aos")).thenReturn(listOf(useCanDto))
+
+        // when
+        val result = service.getCanUseStatus(member, pageable, "Invalid/Timezone", "aos")
+
+        // then
+        assertEquals(1, result.size)
+    }
+
+    @Test
+    @DisplayName("다양한 CanUsage 및 null 필드에 대해 타이틀이 올바르게 포맷팅되는지 확인한다")
+    fun `should handle various can usage and nullable fields correctly`() {
+        // given
+        val member = Member(nickname = "user1", password = "password")
+        member.id = 1L
+        val pageable = PageRequest.of(0, 10)
+
+        val dtos = listOf(
+            createUseCanDto(CanUsage.HEART, 10, 0, roomMemberNickname = null, audioContentMemberNickname = null),
+            createUseCanDto(CanUsage.CHANNEL_DONATION, 10, 0, recipientCreatorNickname = null),
+            createUseCanDto(CanUsage.LIVE, 10, 0, roomMemberNickname = "creator1"),
+            createUseCanDto(CanUsage.LIVE, 10, 0),
+            createUseCanDto(CanUsage.CHANGE_NICKNAME, 10, 0),
+            createUseCanDto(CanUsage.CHAT_QUOTA_PURCHASE, 10, 0)
+        )
+
+        `when`(repository.getCanUseStatus(member, pageable, "aos")).thenReturn(dtos)
+
+        // when
+        val result = service.getCanUseStatus(member, pageable, "Asia/Seoul", "aos")
+
+        // then
+        assertEquals("[후원]", result[0].title)
+        assertEquals("[채널 후원]", result[1].title)
+        assertEquals("[라이브] creator1", result[2].title)
+        assertEquals("[라이브]", result[3].title)
+        assertEquals("닉네임 변경", result[4].title)
+        assertEquals("캐릭터 톡 이용권 구매", result[5].title)
+    }
+
+    private fun createUseCanDto(
+        usage: CanUsage,
+        can: Int,
+        rewardCan: Int,
+        roomMemberNickname: String? = null,
+        recipientCreatorNickname: String? = null,
+        roomTitle: String? = null,
+        audioContentMemberNickname: String? = null,
+        audioContentTitle: String? = null,
+        communityPostMemberNickname: String? = null,
+        auditionTitle: String? = null,
+        characterName: String? = null
+    ): UseCanQueryDto {
+        return UseCanQueryDto(
+            canUsage = usage,
+            can = can,
+            rewardCan = rewardCan,
+            createdAt = LocalDateTime.now(),
+            roomMemberNickname = roomMemberNickname,
+            roomTitle = roomTitle,
+            audioContentMemberNickname = audioContentMemberNickname,
+            audioContentTitle = audioContentTitle,
+            communityPostMemberNickname = communityPostMemberNickname,
+            auditionTitle = auditionTitle,
+            characterName = characterName,
+            recipientCreatorNickname = recipientCreatorNickname
+        )
+    }
+}