public static PhoneBookContext GetPhoneBookDbContext(string dbName)
{
// Create options for DbContext instance
var options = new DbContextOptionsBuilder <PhoneBookContext>()
.UseInMemoryDatabase(databaseName: dbName)
.Options;
// Create instance of DbContext
var dbContext = new PhoneBookContext(options);
// Add entities in memory
dbContext.Seed();
return(dbContext);
}
