     
     static func ensure(folderAt path: String) {
         if !ParserTests.fileManager.fileExists(atPath: path) {
-            try! ParserTests.fileManager.createDirectory(atPath: path, withIntermediateDirectories: false, attributes: nil)
+            try! ParserTests.fileManager.createDirectory(atPath: path,
+                                                         withIntermediateDirectories: false,
+                                                         attributes: nil)
         }
     }
     

import XCTest
import GitRuntime
import Antlr4

class ParserTests: XCTestCase {
    

        ParserTests.fileManager.fileExists(atPath: path, isDirectory: &isDirectory)
        return isDirectory.boolValue
    }
    
    func parse(file: String) throws {
        let fileStream = ANTLRFileStream(file)
        let lexer = Swift3Lexer(fileStream)
        let tokenStream = CommonTokenStream(lexer)
        let parser = try Swift3Parser(tokenStream)
        try parser.top_level()
    }

}
