test: GetTrackerService의 테스트를 작성한다

src/test/java/daybyquest/post/application/GetTrackerServiceTest.java

@@ -0,0 +1,54 @@
+package daybyquest.post.application;
+
+import static daybyquest.support.fixture.UserFixtures.ALICE;
+import static org.assertj.core.api.Assertions.assertThat;
+import static org.mockito.ArgumentMatchers.any;
+import static org.mockito.ArgumentMatchers.eq;
+import static org.mockito.BDDMockito.given;
+
+import daybyquest.post.dto.response.TrackerResponse;
+import daybyquest.post.query.PostDao;
+import daybyquest.post.query.SimplePostData;
+import daybyquest.user.domain.Users;
+import java.time.LocalDateTime;
+import java.util.List;
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.extension.ExtendWith;
+import org.mockito.BDDMockito;
+import org.mockito.junit.jupiter.MockitoExtension;
+
+@ExtendWith(MockitoExtension.class)
+public class GetTrackerServiceTest {
+
+    private final Users users = BDDMockito.mock(Users.class);
+
+    private final PostDao postDao = BDDMockito.mock(PostDao.class);
+
+    private final GetTrackerService getTrackerService = new GetTrackerService(users, postDao, 5L);
+
+    @Test
+    void 트래커를_조회한다() {
+        // given
+        final Long loginId = 1L;
+        final Long aliceId = 2L;
+        final LocalDateTime now = LocalDateTime.now();
+        final List<SimplePostData> simplePostData = List.of(
+                new SimplePostData(1L, now),
+                new SimplePostData(2L, now.minusDays(1)),
+                new SimplePostData(3L, now.minusDays(1)),
+                new SimplePostData(4L, now.minusDays(3)),
+                new SimplePostData(4L, now.minusDays(4))
+        );
+        final List<Long> expected = List.of(1L, 2L, 0L, 1L, 1L);
+
+        given(users.getUserIdByUsername(ALICE.username)).willReturn(aliceId);
+        given(postDao.findAllBySuccessAndUploadedAtAfter(eq(aliceId), any())).willReturn(simplePostData);
+
+        // when
+        final TrackerResponse response = getTrackerService.invoke(loginId, ALICE.username);
+        final List<Long> tracker = response.tracker();
+
+        // then
+        assertThat(tracker).containsExactlyElementsOf(expected);
+    }
+}

src/test/java/daybyquest/post/query/PostDaoQuerydslImplTest.java

@@ -8,6 +8,7 @@
 import static daybyquest.support.fixture.UserFixtures.ALICE;
 import static daybyquest.support.fixture.UserFixtures.BOB;
 import static daybyquest.support.fixture.UserFixtures.CHARLIE;
+import static daybyquest.support.util.PostUtils.n일_전에_업로드;
 import static org.assertj.core.api.Assertions.assertThat;
 import static org.junit.jupiter.api.Assertions.assertAll;
 
@@ -17,6 +18,7 @@
 import daybyquest.relation.domain.Follow;
 import daybyquest.support.test.QuerydslTest;
 import daybyquest.user.domain.User;
+import java.time.LocalDateTime;
 import java.util.List;
 import org.junit.jupiter.api.Test;
 import org.springframework.beans.factory.annotation.Autowired;
@@ -118,4 +120,30 @@ public class PostDaoQuerydslImplTest extends QuerydslTest {
         // then
         assertThat(postData).hasSize(3);
     }
+
+    @Test
+    void 특정_날짜_이후에_업로드하고_성공한_게시물들을_조회한다() {
+        // given
+        final User bob = 저장한다(BOB.생성());
+        final Post post1 = 저장한다(POST_1.생성(bob));
+        final Post post2 = 저장한다(POST_2.생성(bob));
+        final Post post3 = 저장한다(POST_3.생성(bob));
+        final Post post4 = 저장한다(POST_4.생성(bob));
+        n일_전에_업로드(post2, 1);
+        n일_전에_업로드(post3, 2);
+        n일_전에_업로드(post4, 6);
+
+        final List<Long> expected = List.of(post1.getId(), post2.getId(), post3.getId());
+        final LocalDateTime time = LocalDateTime.now().minusDays(5);
+
+        // when
+        final List<SimplePostData> postData = postDao.findAllBySuccessAndUploadedAtAfter(bob.getId(), time);
+        final List<Long> actual = postData.stream().map(SimplePostData::id).toList();
+
+        // then
+        assertAll(() -> {
+            assertThat(postData).hasSize(3);
+            assertThat(actual).containsExactlyInAnyOrderElementsOf(expected);
+        });
+    }
 }

src/test/java/daybyquest/support/util/PostUtils.java

@@ -0,0 +1,13 @@
+package daybyquest.support.util;
+
+import daybyquest.post.domain.Post;
+import java.time.LocalDateTime;
+import org.springframework.test.util.ReflectionTestUtils;
+
+public class PostUtils {
+
+    public static void n일_전에_업로드(final Post post, final long day) {
+        final LocalDateTime dayBefore = LocalDateTime.now().minusDays(day);
+        ReflectionTestUtils.setField(post, "uploadedAt", dayBefore);
+    }
+}