Question

I have a function (internally uses ASIHTTPRequest) which calls a block with the result:

[Http get:@"http://api.geonames.org/postalCodeLookupJSON"
   params:params cacheMins:0 complete:^(NSDictionary *response, BOOL success) {
       STAssertTrue(success, @"JSON retrieved OK");
       STFail(@"blah");
}];

I want to test the above, but it seems the test doesn’t get called.

How can i ensure that the test waits till the block is called?

-edit-

Of course i don’t recommend to do this in the main app in the gui thread, in this particular situation it is only for a unit test.

Answer 1

Found a solution:

Wait for code to finish execution

Eg:

__block int done=0;
[Http get:@"http://api.geonames.org/postalCodeLookupJSON"
   params:params cacheMins:0 complete:^(NSDictionary *response, BOOL success) {
       STAssertTrue(success, @"JSON retrieved OK");
       NSArray *postalcodes = [response objectForKey:@"postalcodes"];
       NSDictionary *first = [postalcodes objectAtIndex:0];
       NSString *adminName1 = [first objectForKey:@"adminName1"];
       STAssertTrue([adminName1 isEqualToString:@"New South Wales"], @"NSW");
       done=1;
}];

// https://stackoverflow.com/questions/3615939/wait-for-code-to-finish-execution
while (!done) {
    // This executes another run loop.
    [[NSRunLoop currentRunLoop] runMode:NSDefaultRunLoopMode beforeDate:[NSDate distantFuture]];
    // Sleep 1/100th sec
    usleep(10000);
}