How can I reset an EF7 InMemory provider between unit tests?

Question

I am trying to use the EF7 InMemory provider for unit tests, but the persistent nature of the InMemory database between tests is causing me problems.

The following code d

Answer 1

I would go with a combination of both answers. If tests run in parallel, you could have a database being deleted while you are in the middle of running another test, so I was seeing sporadic failures when running a 30+ tests.

Give it a random db name, and ensure it gets deleted when the test is completed.

public class MyRepositoryTests : IDisposable {
  private SchoolContext _context;

  [TestInitialize]
  public void Setup() {
    var options = new DbContextOptionsBuilder()
      // Generate a random db name
      .UseInMemoryDatabase(databaseName: Guid.NewGuid().ToString())
      .Options;
      _context = new ApplicationDbContext(options);
  }

  [TestCleanup]
  public void Cleanup()
    _context.Database.EnsureDeleted(); // Remove from memory
    _context.Dispose();
  }
}