public async Task GetAsync_GivenMultipleExistingAnimeOneOfWhichWithId_ShouldReturnResult()
        {
            // Given
            var dbContext  = InMemoryDbProvider.GetDbContext();
            var repository = new CharacterRepository(dbContext);
            var character1 = new CharacterBuilder().WithMalId(1).Build();
            var character2 = new CharacterBuilder().WithMalId(2).Build();
            var character3 = new CharacterBuilder().WithMalId(3).Build();
            var character4 = new CharacterBuilder().WithMalId(4).Build();
            var character5 = new CharacterBuilder().WithMalId(5).Build();

            await dbContext.AnimeCharacters.AddAsync(character1);

            await dbContext.AnimeCharacters.AddAsync(character2);

            await dbContext.AnimeCharacters.AddAsync(character3);

            await dbContext.AnimeCharacters.AddAsync(character4);

            await dbContext.AnimeCharacters.AddAsync(character5);

            await dbContext.SaveChangesAsync();

            // When
            var result = await repository.GetAsync(3);

            // Then
            result.Should().NotBeNull();
            result.MalId.Should().Be(3);
        }
        public async Task GetAsync_GivenNoCharacter_ShouldReturnNull()
        {
            // Given
            var dbContext  = InMemoryDbProvider.GetDbContext();
            var repository = new CharacterRepository(dbContext);

            // When
            var result = await repository.GetAsync(1);

            // Then
            result.Should().BeNull();
        }
        public async Task GetAsync_GivenExistingCharacterWithId_ShouldReturnResult()
        {
            // Given
            var dbContext  = InMemoryDbProvider.GetDbContext();
            var repository = new CharacterRepository(dbContext);
            var character  = new CharacterBuilder().WithMalId(1).Build();

            await dbContext.AnimeCharacters.AddAsync(character);

            await dbContext.SaveChangesAsync();

            // When
            var result = await repository.GetAsync(1);

            // Then
            result.Should().NotBeNull();
        }