diff --git a/backend/src/test/java/reviewme/member/repository/GithubReviewerGroupRepositoryTest.java b/backend/src/test/java/reviewme/member/repository/GithubReviewerGroupRepositoryTest.java
new file mode 100644
index 000000000..ced6c04ce
--- /dev/null
+++ b/backend/src/test/java/reviewme/member/repository/GithubReviewerGroupRepositoryTest.java
@@ -0,0 +1,65 @@
+package reviewme.member.repository;
+
+import static org.assertj.core.api.Assertions.assertThat;
+import static reviewme.fixture.ReviewerGroupFixture.리뷰_그룹;
+
+import java.util.List;
+import org.junit.jupiter.api.Test;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.test.autoconfigure.orm.jpa.DataJpaTest;
+import reviewme.member.domain.GithubReviewerGroup;
+import reviewme.member.domain.Member;
+import reviewme.member.domain.ReviewerGroup;
+
+@DataJpaTest
+class GithubReviewerGroupRepositoryTest {
+
+    @Autowired
+    GithubReviewerGroupRepository githubReviewerGroupRepository;
+
+    @Autowired
+    ReviewerGroupRepository reviewerGroupRepository;
+
+    @Autowired
+    MemberRepository memberRepository;
+
+    @Test
+    void 깃허브_아이디와_리뷰어_그룹이_모두_일치하는_깃허브_리뷰어_그룹이_있는_경우를_확인한다() { // given
+        // given
+        String revieweeGithubId = "kirby";
+        Member reviewee = new Member("커비", revieweeGithubId);
+        String reviewerGithubId = "ted";
+        Member reviewer = new Member("테드", reviewerGithubId);
+        memberRepository.saveAll(List.of(reviewee, reviewer));
+
+        ReviewerGroup reviewerGroup = 리뷰_그룹.create(reviewee);
+        reviewerGroupRepository.save(reviewerGroup);
+        githubReviewerGroupRepository.save(new GithubReviewerGroup(reviewerGithubId, reviewerGroup));
+
+        // when
+        boolean actual = githubReviewerGroupRepository.existsByGithubIdAndReviewerGroup(reviewerGithubId, reviewerGroup);
+
+        // then
+        assertThat(actual).isTrue();
+    }
+
+    @Test
+    void 깃허브_아이디와_리뷰어_그룹이_모두_일치하는_깃허브_리뷰어_그룹이_없는_경우를_확인한다() {
+        // given
+        String revieweeGithubId = "kirby";
+        Member reviewee = new Member("커비", revieweeGithubId);
+        String reviewerGithubId = "ted";
+        Member reviewer = new Member("테드", reviewerGithubId);
+        memberRepository.saveAll(List.of(reviewee, reviewer));
+
+        ReviewerGroup reviewerGroup = 리뷰_그룹.create(reviewee);
+        reviewerGroupRepository.save(reviewerGroup);
+        githubReviewerGroupRepository.save(new GithubReviewerGroup(reviewerGithubId, reviewerGroup));
+
+        // when
+        boolean actual = githubReviewerGroupRepository.existsByGithubIdAndReviewerGroup("aru", reviewerGroup);
+
+        // then
+        assertThat(actual).isFalse();
+    }
+}
diff --git a/backend/src/test/java/reviewme/review/ReviewServiceTest.java b/backend/src/test/java/reviewme/review/ReviewServiceTest.java
index d81490cff..879737c26 100644
--- a/backend/src/test/java/reviewme/review/ReviewServiceTest.java
+++ b/backend/src/test/java/reviewme/review/ReviewServiceTest.java
@@ -2,6 +2,9 @@
 
 import static org.assertj.core.api.Assertions.assertThat;
 import static org.assertj.core.api.Assertions.assertThatThrownBy;
+import static reviewme.fixture.KeywordFixture.꼼꼼하게_기록해요;
+import static reviewme.fixture.KeywordFixture.회의를_이끌어요;
+import static reviewme.fixture.ReviewerGroupFixture.리뷰_그룹;
 
 import java.time.LocalDateTime;
 import java.util.List;
@@ -60,8 +63,8 @@ class ReviewServiceTest {
                 new ReviewerGroup(reviewee, "그룹A", "그룹 설명", LocalDateTime.now().minusDays(1))
         );
         githubReviewerGroupRepository.save(new GithubReviewerGroup("sancho", reviewerGroup));
-        Keyword keyword1 = keywordRepository.save(new Keyword("꼼꼼해요"));
-        Keyword keyword2 = keywordRepository.save(new Keyword("친절해요"));
+        Keyword keyword1 = keywordRepository.save(꼼꼼하게_기록해요.create());
+        Keyword keyword2 = keywordRepository.save(회의를_이끌어요.create());
 
         CreateReviewContentRequest contentRequest1 = new CreateReviewContentRequest(
                 1L, "소프트스킬이 어떤가요?", "소통을 잘해요"
@@ -90,12 +93,7 @@ class ReviewServiceTest {
         Member reviewer = memberRepository.save(new Member("테드", "ted"));
         Member reviewee = memberRepository.save(new Member("아루", "aru"));
         memberRepository.save(new Member("산초", "sancho"));
-        ReviewerGroup reviewerGroup = reviewerGroupRepository.save(new ReviewerGroup(
-                reviewee,
-                "그룹A",
-                "그룹 설명",
-                LocalDateTime.of(2024, 1, 1, 1, 1))
-        );
+        ReviewerGroup reviewerGroup = reviewerGroupRepository.save(리뷰_그룹.create(reviewee));
         Review review = reviewRepository.save(new Review(reviewer, reviewerGroup));
 
         // when
@@ -111,12 +109,7 @@ class ReviewServiceTest {
         // given
         Member reviewee = memberRepository.save(new Member("아루", "aru"));
         Member reviewer = memberRepository.save(new Member("테드", "ted"));
-        ReviewerGroup reviewerGroup = reviewerGroupRepository.save(new ReviewerGroup(
-                reviewee,
-                "그룹A",
-                "그룹 설명",
-                LocalDateTime.of(2024, 1, 1, 1, 1))
-        );
+        ReviewerGroup reviewerGroup = reviewerGroupRepository.save(리뷰_그룹.create(reviewee));
         githubReviewerGroupRepository.save(new GithubReviewerGroup("kirby", reviewerGroup));
 
         CreateReviewRequest createReviewRequest = new CreateReviewRequest(
@@ -136,12 +129,7 @@ class ReviewServiceTest {
         // given
         Member reviewee = memberRepository.save(new Member("아루", "aru"));
         Member reviewer = memberRepository.save(new Member("테드", "ted"));
-        ReviewerGroup reviewerGroup = reviewerGroupRepository.save(new ReviewerGroup(
-                reviewee,
-                "그룹A",
-                "그룹 설명",
-                LocalDateTime.of(2024, 1, 1, 1, 1))
-        );
+        ReviewerGroup reviewerGroup = reviewerGroupRepository.save(리뷰_그룹.create(reviewee));
         githubReviewerGroupRepository.save(new GithubReviewerGroup("ted", reviewerGroup));
 
         CreateReviewRequest createReviewRequest = new CreateReviewRequest(