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Mock Entity Framework FindAsync() method

In entity framework, FindAsync() method has signature of:

        public virtual ValueTask<TEntity> FindAsync([CanBeNullAttribute] params object[] keyValues);

Assume we have a method in DB repository that looks for brand information by brand ID: 

          public async Task<Brand> GetBrandbyIdAsync(int brandId)

        {

            var brand = await _context.Brands.FindAsync(brandId).ConfigureAwait(false);

            return brand;

        }

In order to make this method work, we need to mock the FindAsync call inside the method:

            var dbSetMock = CreateDbSetMock(brands);

            dbSetMock.Setup(m => m.FindAsync(It.IsAny<object[]>())).Returns((object[] r) =>

            {

                return new ValueTask<Brand>(dbSetMock.Object.FirstOrDefaultAsync(b => b.BrandId == (int)r[0]));

            });

        private static Mock<DbSet<T>> CreateDbSetMock<T>(IEnumerable<T> elements) where T : class

        {

            var elementsAsQueryable = elements.AsQueryable();

            var dbSetMock = new Mock<DbSet<T>>();

            dbSetMock.As<IAsyncEnumerable<T>>()

                    .Setup(x => x.GetAsyncEnumerator(default))

                    .Returns(new TestAsyncEnumerator<T>(elementsAsQueryable.GetEnumerator()));

            dbSetMock.As<IQueryable<T>>()

                .Setup(m => m.Provider)

                .Returns(new TestAsyncQueryProvider<T>(elementsAsQueryable.Provider));

            dbSetMock.As<IQueryable<T>>()

                .Setup(m => m.Expression).Returns(elementsAsQueryable.Expression);

            dbSetMock.As<IQueryable<T>>()

                .Setup(m => m.ElementType).Returns(elementsAsQueryable.ElementType);

            dbSetMock.As<IQueryable<T>>()

                .Setup(m => m.GetEnumerator()).Returns(elementsAsQueryable.GetEnumerator());

            return dbSetMock;

        }