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我正在尝试为调用异步存储库的类创建单元测试.我正在使用ASP.NET Core和Entity Framework Core.我的通用存储库看起来像这样.

public class EntityRepository<TEntity> : IEntityRepository<TEntity> where TEntity : class
{
    private readonly SaasDispatcherDbContext _dbContext;
    private readonly DbSet<TEntity> _dbSet;

    public EntityRepository(SaasDispatcherDbContext dbContext)
    {
        _dbContext = dbContext;
        _dbSet = dbContext.Set<TEntity>();
    }

    public virtual IQueryable<TEntity> GetAll()
    {
        return _dbSet;
    }

    public virtual async Task<TEntity> FindByIdAsync(int id)
    {
        return await _dbSet.FindAsync(id);
    }

    public virtual IQueryable<TEntity> FindBy(Expression<Func<TEntity, bool>> predicate)
    {
        return _dbSet.Where(predicate);
    }

    public virtual void Add(TEntity entity)
    {
        _dbSet.Add(entity);
    }
    public virtual void Delete(TEntity entity)
    {
        _dbSet.Remove(entity);
    }

    public virtual …

我有这个测试:

[Fact]
public async void Can_Paginate()
{
    //fake data
    var product1 = new Product { ProductId = 1, ProductName = "P1" };
    var product2 = new Product { ProductId = 2, ProductName = "Product 2" };
    var product3 = new Product { ProductId = 3, ProductName = "Product 3" };
    var product4 = new Product { ProductId = 4, ProductName = "Product 4" };
    var product5 = new Product { ProductId = 5, ProductName = "Product 5" };
    var data …