win7user10 / DbSetMock

DbSetMock

When should I use it?

If you have troubles with testing some code which executes direct queries to your database like this:

string query = @"select smth from smth_table";

var data = await _db.SomeDbSet
  .FromSqlRaw(query)
  .AsNoTracking()
  .FirstOrDefaultAsync();
//etc.

and you want to have way to test code, which uses these constructions

How do I get started?

Create DB set which will returns some data for any query to this set like this

var data = new List<SomeEntity>
{
  new SomeEntity()
};
YourDbContext.SomeDbSet = data.CreateMockedDbSet();

Or you can return the mock, which can be additionaly setuped.

var data = new List<SomeEntity>
{
  new SomeEntity()
};
var someDbSetMock = data.CreateMockFromDbSet();

// Some mock additional setuping
// someDbSetMock.Setup()
YourDbContext.SomeDbSet = someDbSetMock.Object;