c# - 使用可变参数使此方法通用

Question

有什么创造性的方法可以使这个方法通用，我讨厌到处复制粘贴它:

private CoachContext GetMockContext(Mock<DbSet<LastViewedRecord>> mockSet) {
  var autoFixture = new Fixture();
  DbContextOptions<CoachContext> options = autoFixture
    .Build<DbContextOptions<CoachContext>>()
    .Create();
  var mockContext = new Mock<CoachContext>(options);
  mockContext.Setup(c => c.LastViewedRecords).Returns(mockSet.Object);
  return mockContext.Object;
}

我可以将 LastViewedRecord 变成 T 并使方法通用，但我无法绕过 c => c.LastViewedRecords

解决方案:我将方法签名更改为如下所示:

protected CreditCoachContext GetMockContext<T>(
  IQueryable<T> mockData,
  Expression<Func<CreditCoachContext,
  DbSet<T>>> contextExpression
) where T : class

Answer 1

这样的事情可能会有所帮助。 (PS:我对Fixture不太确定)

private TReturn GetMockContext<TContext, TEntity, TReturn>(Mock<DbSet<TEntity>> mockSet, 
  Expression<Func<CreditCoachContext>> contextExpression) 
    where TContext : DbContext, new() 
    where TEntity : class 
    where TReturn : class
{
  var autoFixture = new Fixture();
  DbContextOptions<TContext> options = autoFixture
    .Build<DbContextOptions<TContext>>()
    .Create();
  var mockContext = new Mock<TContext>(options);
  mockContext.Setup(contextExpression).Returns(mockSet.Object);
  return mockContext.Object;
}