public void Non_nullability_can_be_specified_on_both_navigations()
{
var modelBuilder = CreateModelBuilder();
var model = (Model)modelBuilder.Model;
modelBuilder.Entity <BlogDetails>().HasOne(b => b.Blog).WithOne(b => b.BlogDetails);
var logEntry = ListLoggerFactory.Log.Single();
Assert.Equal(LogLevel.Debug, logEntry.Level);
Assert.Equal(
CoreResources.LogNonNullableReferenceOnBothNavigations(new TestLogger <TestLoggingDefinitions>()).GenerateMessage(
nameof(Blog), nameof(Blog.BlogDetails), nameof(BlogDetails), nameof(BlogDetails.Blog)), logEntry.Message);
}