Loading content from a file contained as a bundle resource within a unit test target

gistfile1.m

- (NSString *)contentOfXMLFile:(NSString *)filename {
    NSString *contentPath = [[NSBundle bundleForClass:[self class]] pathForResource:filename 
                                                                             ofType:@"xml"];
    NSURL *contentURL = [NSURL fileURLWithPath:contentPath];
    return [NSString stringWithContentsOfURL:contentURL 
                                    encoding:NSUTF8StringEncoding 
                                       error:nil];  
}