fix(recommend): 장르 추천에서 요청자를 제외한다

2026-06-08 10:11:42 +09:00
parent a50f658333
commit 29db5c3fd0
3 changed files with 134 additions and 0 deletions
--- a/src/test/kotlin/kr/co/vividnext/sodalive/v2/recommend/adapter/out/persistence/DefaultHomeRecommendationQueryRepositoryTest.kt
+++ b/src/test/kotlin/kr/co/vividnext/sodalive/v2/recommend/adapter/out/persistence/DefaultHomeRecommendationQueryRepositoryTest.kt
@@ -1427,6 +1427,108 @@ class DefaultHomeRecommendationQueryRepositoryTest @Autowired constructor(
        assertEquals(listOf(visibleCreator.id), recommendations.single().creators.map { it.creatorId })
    }

+    @Test
+    @DisplayName("장르 기반 크리에이터 추천은 요청자 본인만 있는 장르를 후보에서 제외한다")
+    fun shouldExcludeRequesterOnlyGenreFromGenreCreatorRecommendations() {
+        val viewer = saveMember("self-only-viewer", MemberRole.CREATOR)
+        val fallbackCreator = saveMember("self-only-fallback", MemberRole.CREATOR)
+        val selfTheme = saveTheme("self-only-theme")
+        val fallbackTheme = saveTheme("self-only-fallback-theme")
+        val selfContent = saveAudioContent(
+            viewer,
+            LocalDateTime.of(2026, 5, 30, 10, 0),
+            isActive = true,
+            theme = selfTheme
+        )
+        saveAudioContent(
+            fallbackCreator,
+            LocalDateTime.of(2026, 5, 30, 11, 0),
+            isActive = true,
+            theme = fallbackTheme
+        )
+        entityManager.persist(
+            CreatorContentViewHistory(
+                memberId = viewer.id!!,
+                contentId = selfContent.id!!,
+                genreId = 999L,
+                viewedAt = LocalDateTime.of(2026, 5, 31, 10, 0)
+            )
+        )
+        flushAndClear()
+
+        val recommendations = repository.findGenreCreatorRecommendations(
+            memberId = viewer.id!!,
+            includeAdultGenres = false,
+            genreLimit = 1,
+            creatorLimit = 8
+        )
+
+        assertEquals(listOf(fallbackTheme.id), recommendations.map { it.genreId })
+        assertEquals(listOf(fallbackCreator.id), recommendations.single().creators.map { it.creatorId })
+    }
+
+    @Test
+    @DisplayName("장르 기반 크리에이터 추천은 요청자 본인을 제외한 뒤 대체 크리에이터로 8명을 채운다")
+    fun shouldBackfillCreatorAfterExcludingRequesterFromGenreCreatorRecommendations() {
+        val viewer = saveMember("self-backfill-viewer", MemberRole.CREATOR)
+        val theme = saveTheme("self-backfill-theme")
+        saveAudioContent(viewer, LocalDateTime.of(2026, 5, 30, 10, 0), isActive = true, theme = theme)
+        val expectedCreators = (0..8).map { index ->
+            saveMember("self-backfill-creator-$index", MemberRole.CREATOR).also { creator ->
+                saveAudioContent(
+                    creator,
+                    LocalDateTime.of(2026, 5, 30, 11, 0).plusMinutes(index.toLong()),
+                    isActive = true,
+                    theme = theme
+                )
+            }
+        }
+        flushAndClear()
+
+        val recommendations = repository.findGenreCreatorRecommendations(
+            memberId = viewer.id!!,
+            includeAdultGenres = false,
+            genreLimit = 1,
+            creatorLimit = 8
+        )
+        val creatorIds = recommendations.single().creators.map { it.creatorId }
+
+        assertEquals(8, creatorIds.size)
+        assertEquals(false, creatorIds.contains(viewer.id))
+        assertEquals(true, creatorIds.all { it in expectedCreators.map { creator -> creator.id } })
+    }
+
+    @Test
+    @DisplayName("장르 기반 크리에이터 추천은 요청자 본인 제외 후 대체가 없으면 가능한 크리에이터만 응답한다")
+    fun shouldReturnAvailableCreatorsAfterExcludingRequesterFromGenreCreatorRecommendations() {
+        val viewer = saveMember("self-partial-viewer", MemberRole.CREATOR)
+        val theme = saveTheme("self-partial-theme")
+        saveAudioContent(viewer, LocalDateTime.of(2026, 5, 30, 10, 0), isActive = true, theme = theme)
+        val expectedCreators = (0 until 7).map { index ->
+            saveMember("self-partial-creator-$index", MemberRole.CREATOR).also { creator ->
+                saveAudioContent(
+                    creator,
+                    LocalDateTime.of(2026, 5, 30, 11, 0).plusMinutes(index.toLong()),
+                    isActive = true,
+                    theme = theme
+                )
+            }
+        }
+        flushAndClear()
+
+        val recommendations = repository.findGenreCreatorRecommendations(
+            memberId = viewer.id!!,
+            includeAdultGenres = false,
+            genreLimit = 1,
+            creatorLimit = 8
+        )
+        val creatorIds = recommendations.single().creators.map { it.creatorId }
+
+        assertEquals(7, creatorIds.size)
+        assertEquals(false, creatorIds.contains(viewer.id))
+        assertEquals(expectedCreators.map { it.id }.toSet(), creatorIds.toSet())
+    }
+
    @Test
    @DisplayName("장르 기반 크리에이터 추천은 series_genre가 아니라 content_theme 기준으로 그룹을 만든다")
    fun shouldGroupGenreCreatorRecommendationsByContentThemeNotSeriesGenre() {
--- a/src/test/kotlin/kr/co/vividnext/sodalive/v2/recommend/application/HomeRecommendationQueryServiceTest.kt
+++ b/src/test/kotlin/kr/co/vividnext/sodalive/v2/recommend/application/HomeRecommendationQueryServiceTest.kt
@@ -526,6 +526,35 @@ class HomeRecommendationQueryServiceTest {
        assertEquals((101L..108L).toList(), recommendations[1].creators.map { it.creatorId })
    }

+    @Test
+    @DisplayName("장르 기반 크리에이터 추천은 장르의 추천 가능 크리에이터가 8명 미만이면 가능한 만큼 응답한다")
+    fun shouldReturnAvailableCreatorsWhenGenreCreatorCountIsUnderLimit() {
+        val availableCreators = (1L..7L).map { creatorId ->
+            HomeGenreCreatorRecommendationRecord(
+                creatorId = creatorId,
+                creatorNickname = "available-$creatorId",
+                creatorProfileImage = null
+            )
+        }
+        port.genreCreatorRecommendations = listOf(
+            HomeGenreCreatorRecommendationGroup(
+                genreId = 1L,
+                genreName = "partial-theme",
+                creators = availableCreators
+            )
+        )
+
+        val recommendations = service.findGenreCreatorRecommendations(
+            memberId = 100L,
+            includeAdultGenres = false,
+            genreLimit = 5,
+            creatorLimit = 8
+        )
+
+        assertEquals(listOf(1L), recommendations.map { it.genreId })
+        assertEquals((1L..7L).toList(), recommendations.single().creators.map { it.creatorId })
+    }
+
    @Test
    @DisplayName("장르 기반 크리에이터 추천은 조회 이력 장르는 중복 제거 후 8명 미만이어도 유지한다")
    fun shouldKeepViewedThemeWhenCreatorDeduplicationMakesThemeUnderfilled() {