EntityFramework.BulkInsert issues inserting into database

In an effort to use EF6 and SqlBulkCopy, I'm trying to use the EntityFramework.BulkInsert library.

Although the instructions appear to be quite clear, I am unable to fill the database with any data.

The code for a challenging example is as follows:

public void WriteChunkNoAsync(int chunkCount, bool forceSave = false)
{
    Chunking.Entities.Add(this);
    if (forceSave || Chunking.Entities.Count % chunkCount == 0)
    {
        using (var db = new FlatESContainer())
        {
            //db.Entity.AddRange(Chunking.Entities); //This will work
            db.BulkInsert(Chunking.Entities);
            Chunking.Entities = new List<Entity>();
            db.SaveChanges();
        }
    }
}

Basically, this code will continue to add to a global list until the list count equals chunckCount.

The AddRange function works well. So, we made the decision to build a very basic database with only one table, "Test," and this is where we ran into trouble:

List<Test> tests = new List<Test>();
for (int i = 0; i < 1000; i++)
{
    tests.Add(new Test());
}

using (var context = new SimpleContainer())
{
    //This works fine
    context.Tests.AddRange(tests);
    //This causes an exception: Type 'TestSimpleDatabase.Test' is not found in context 'TestSimpleDatabase.SimpleContainer'
    context.BulkInsert(tests);
    context.SaveChanges();
}

I think these are different problems, but maybe someone in the stackoverflow community knows why we are seeing this problem.