$ clang -framework Foundation file.m -o file

file.m

#import <Foundation/Foundation.h>

@interface PatrolIntegrationTestRunner : NSObject
+ (NSString *)createMethodNameFromPatrolGeneratedGroup:(NSString *)dartTestGroup;
@end

@implementation PatrolIntegrationTestRunner

- (instancetype)init {
  self = [super init];
  return self;
}

+ (NSString *)createMethodNameFromPatrolGeneratedGroup:(NSString *)dartGroupName {
  NSMutableString *temp = [NSMutableString stringWithString:dartGroupName];

  // Separate directories from the file name

  // Split the string by dot
  NSArray<NSString *> *components = [[temp componentsSeparatedByString:@"."] mutableCopy];

  NSLog(@"Components: %@", components);
  
  // Convert the filename from snake_case to camelCase
  NSMutableString *fileName = [components.lastObject mutableCopy];
  NSArray *words = [fileName componentsSeparatedByString:@"_"];
  [fileName setString:words[0]];
  for (NSUInteger i = 1; i < words.count; i++) {
      NSString *word = words[i];
      NSString *firstLetter = [[word substringToIndex:1] capitalizedString];
      NSString *restOfWord = [word substringFromIndex:1];
      NSString *camelCaseWord = [firstLetter stringByAppendingString:restOfWord];
      [fileName appendString:camelCaseWord];
  }
  
  NSMutableArray<NSString * > *pathComponents = [[components subarrayWithRange:NSMakeRange(0, components.count - 1)] mutableCopy];
  if (pathComponents.count > 0) {
    NSString *path = [pathComponents componentsJoinedByString:@"_"];
    return [NSString stringWithFormat:@"%@_%@", path, fileName];
  } else {
    return fileName;
  }
}

@end


int main(int argc, const char * argv[]) {
    @autoreleasepool {
        NSLog(@"Hello, World!");
        NSLog(@"Test case 1: %@", [PatrolIntegrationTestRunner createMethodNameFromPatrolGeneratedGroup:@""]);
        NSLog(@"Test case 2: %@", [PatrolIntegrationTestRunner createMethodNameFromPatrolGeneratedGroup:@"example_test"]);
        NSLog(@"Test case 3: %@", [PatrolIntegrationTestRunner createMethodNameFromPatrolGeneratedGroup:@"example.example_test"]);
        NSLog(@"Test case 4: %@", [PatrolIntegrationTestRunner createMethodNameFromPatrolGeneratedGroup:@"very.deep.example_test"]);
    }
    return 0;
}