diff --git a/test/repositories/in-memory-course-repository.ts b/test/repositories/in-memory-course-repository.ts
new file mode 100644
index 0000000..1dd210b
--- /dev/null
+++ b/test/repositories/in-memory-course-repository.ts
@@ -0,0 +1,43 @@
+import { CourseEntity } from '@modules/course/domain/entities/course/course.entity';
+import { CourseRepository } from '@modules/course/domain/repositories/course.repository';
+import { PaginatedEntitiesOptions } from '@shared/infra/database/interfaces/paginated-entities-options.interface.';
+import { PaginatedEntities } from '@shared/infra/database/interfaces/paginated-entities.interface';
+import { UUID } from 'crypto';
+import { InMemoryRepository } from './in-memory-repository';
+
+export class InMemoryCourseRepository
+  implements InMemoryRepository<CourseRepository, CourseEntity>
+{
+  public items: CourseEntity[] = [];
+
+  async save(course: CourseEntity): Promise<void> {
+    this.items.push(course);
+  }
+
+  async getById(id: UUID): Promise<CourseEntity | null> {
+    const course = this.items.find((c) => c.id === id);
+
+    if (!course) {
+      return null;
+    }
+
+    return course;
+  }
+
+  async getAllPaginated(
+    options: PaginatedEntitiesOptions,
+  ): Promise<PaginatedEntities<CourseEntity>> {
+    const take = options.pageLimit || 10;
+    const skip = ((options.page || 1) - 1) * take;
+
+    const entities = this.items.slice(skip, skip + take);
+    const totalPageCount = Math.ceil(this.items.length / take);
+
+    return {
+      page: options.page || 1,
+      pageLimit: take,
+      totalPageCount: totalPageCount,
+      entities,
+    };
+  }
+}