   */
 
   func testDifferentCaseFlagReuse() {
-    let cli = CommandLine()
+    let cli = CommandLine(arguments: [])
     let op1 = BoolOption(shortFlag: "v", longFlag: "verbose", helpMessage: "")
     let op2 = StringOption(shortFlag: "V", longFlag: "verify", helpMessage: "")
     cli.addOptions(op1, op2)

  }

  func testSetOptionFlagReuse() {
    let cli = CommandLine()
    let opts = [
      BoolOption(shortFlag: "v", longFlag: "verbose", helpMessage: ""),
      StringOption(shortFlag: "v", longFlag: "verify", helpMessage: "")

  }

  func testLongFlagReuse() {
    let cli = CommandLine(arguments: [])
    let op1 = BoolOption(shortFlag: "v", longFlag: "verbose", helpMessage: "")
    let op2 = StringOption(shortFlag: "d", longFlag: "verbose", helpMessage: "")
    cli.addOptions(op1, op2)
