public static void Main(string[] args)
{
var host = CreateWebHostBuilder(args).Build();
using (var scope = host.Services.CreateScope())
{
var services = scope.ServiceProvider;
try
{
var context = services.
GetRequiredService <ProjectContext>();
context.Database.EnsureCreated();
SeedProjectTechnician.Initialize(services);
SeedIdentityData.Initialize(services);
context.Database.Migrate();
}
catch (Exception ex)
{
var logger = services.GetRequiredService <ILogger <Program> >();
logger.LogError(ex, "An error occurred seeding the DB.");
}
}
host.Run();
}
// Creates and seeds an ProjectContext with test data; then calls test action.
private async Task PrepareTestContext(TestAction testAction)
{
// Database is in memory as long the connection is open
var connection = new SqliteConnection("DataSource=:memory:");
try
{
connection.Open();
var options = new DbContextOptionsBuilder <ProjectContext>()
.UseSqlite(connection)
.Options;
// Create the schema in the database and seeds with test data
using (var context = new ProjectContext(options))
{
context.Database.EnsureCreated();
SeedProjectTechnician.Initialize(context);
await testAction(context);
}
}
finally
{
connection.Close();
}
}
public async Task OnGetAsyncPopulatesPageModel()
{
// Arrange: seed database with test data
await PrepareTestContext(async(context) =>
{
var expectedTechnicians = SeedProjectTechnician.GetSeedingTechnicians();
// Act: retrieve Technicians
var pageModel = new IndexModel(context);
await pageModel.OnGetAsync();
// Assert: seeded and retrieved Technicians match
var actualMessages = Assert.IsAssignableFrom <List <Technician> >(pageModel.Technician);
Assert.Equal(
expectedTechnicians.Select(a => a.Name),
actualMessages.Select(a => a.Name));
});
}
public async Task OnGetAsyncPopulatesPageModel()
{
// Arrange: seed database with test data
await PrepareTestContext(async(context) =>
{
var expectedProjects = SeedProjectTechnician.GetSeedingProjects();
// Act: retrieve Projects
var pageModel = new IndexModel(context);
await pageModel.OnGetAsync(id, tech);
// Assert: seeded and retrieved Projects match
//var actualMessages = Assert.IsAssignableFrom<List<Project>>(pageModel.Project);
//Assert.Equal(
// expectedProjects.Select(a => a.Title),
//actualMessages.Select(a => a.Title));
});
}
public async Task ProjectsAreRetrievedTest()
{
using (var db = new ProjectContext(Utilities.TestDbContextOptions()))
{
// Arrange: seed database with Technicians
var expectedProjects = SeedProjectTechnician.GetSeedingProjects();
await db.AddRangeAsync(expectedProjects);
await db.SaveChangesAsync();
// Act: retrieve seeded Projects from database
var result = await db.GetProjectsAsync();
// Assert: seeded and retrieved Projects match
var actualProjects = Assert.IsAssignableFrom <List <Project> >(result);
Assert.Equal(
expectedProjects.OrderBy(a => a.ProjectID).Select(a => a.Title),
actualProjects.OrderBy(a => a.ProjectID).Select(a => a.Title));
}
}
