public async Task <Result <UserRegistrationStatusModel> > Handle(IsUserRegisteredQuery request, CancellationToken cancellationToken)
{
var isUserRegistered =
await _surveyContext.Users.AsNoTracking()
.AnyAsync(user => user.ExternalUserId == request.UserId, cancellationToken);
return(new UserRegistrationStatusModel
{
IsUserRegistered = isUserRegistered
});
}
public async Task GivenNewUserId_WhenCallingHandle_ThenReturnedResultShouldBeFalse()
{
const string userId = "unregistered-id";
var query = new IsUserRegisteredQuery(userId);
var handler = new IsUserRegisteredQueryHandler(_surveyContext);
var result = await handler.Handle(query, CancellationToken.None);
result.Value.Should().BeFalse();
}
public async Task GivenExistingUserId_WhenCallingHandle_ThenExpectedResultTypeShouldBeReturned()
{
const string userId = "test-id";
var query = new IsUserRegisteredQuery(userId);
var handler = new IsUserRegisteredQueryHandler(_surveyContext);
var result = await handler.Handle(query, CancellationToken.None);
result.Should().BeOfType <Result <bool> >();
}
public async Task Handle_Returns_False_For_Nonexistent_User()
{
const string userId = "unregistered-id";
var query = new IsUserRegisteredQuery(userId);
var handler = new IsUserRegisteredQueryHandler(_surveyContext);
var result = await handler.Handle(query, CancellationToken.None);
result.Value.ShouldBe(false);
}
public async Task Handle_Returns_True_For_Existing_User()
{
const string userId = "test-id";
var query = new IsUserRegisteredQuery(userId);
var handler = new IsUserRegisteredQueryHandler(_surveyContext);
var result = await handler.Handle(query, CancellationToken.None);
result.Value.ShouldBe(true);
}
public async Task Handle_Returns_Correct_Type()
{
const string userId = "test-id";
var query = new IsUserRegisteredQuery(userId);
var handler = new IsUserRegisteredQueryHandler(_surveyContext);
var result = await handler.Handle(query, CancellationToken.None);
result.ShouldBeOfType <Result <bool> >();
}
