protected override void ConfigureWebHost(IWebHostBuilder builder)
{
builder.ConfigureServices(services =>
{
// Create a new service provider.
var serviceProvider = new ServiceCollection()
.AddEntityFrameworkInMemoryDatabase()
.BuildServiceProvider();
// Add a database context (ApplicationDbContext) using an in-memory
// database for testing.
services.AddDbContext <POIContext>(options =>
{
options.UseInMemoryDatabase("InMemoryDbForTesting");
options.UseInternalServiceProvider(serviceProvider);
});
// Build the service provider.
var sp = services.BuildServiceProvider();
// Create a scope to obtain a reference to the database
// context (ApplicationDbContext).
using (var scope = sp.CreateScope())
{
var scopedServices = scope.ServiceProvider;
var db = scopedServices.GetRequiredService <POIContext>();
var logger = scopedServices
.GetRequiredService <ILogger <CustomWebApplicationFactory <TStartup> > >();
// Ensure the database is created.
db.Database.EnsureCreated();
try
{
// Seed the database with test data.
DatabaseHelpers.InitializeDbForTests(db);
}
catch (Exception ex)
{
logger.LogError(ex, $"An error occurred seeding the " +
"database with test POIs. Error: {ex.Message}");
}
}
});
}