phone number validate with regexp - BDD on swift

gistfile1.txt

// Phone class part
// Phone.swift

import Foundation

class Phone {
    class func validateNumber(number: String) -> Bool {
      let pattern = "^(08|09)[0-9]{8}$"
      let regexp = NSRegularExpression(pattern: pattern, options: .CaseInsensitive, error: nil)
      let range = NSRange(location: 0, length: count(number))
      let matchCount = regexp?.numberOfMatchesInString(number, options: nil, range: range)
    
      return matchCount > 0
    }
}

// ====================================================================================
// Test Phone part
// PhoneNumberSpec.swift

import Quick
import Nimble
import SMSME

class PhoneNumberSpec : QuickSpec {
  override func spec() {
    describe("Phone number") {
      context("Validate") {
        it("should length equal 10 digit") {
          expect(Phone.validateNumber("12345")).to(beFalse())
          expect(Phone.validateNumber("1234567890")).to(beFalse())
          expect(Phone.validateNumber("0811122222")).to(beTrue())
        }
        
        it("should begins with 08/09") {
          expect(Phone.validateNumber("998876")).to(beFalse())
          expect(Phone.validateNumber("081122")).to(beFalse())
          expect(Phone.validateNumber("0811122222")).to(beTrue())
        }
      }
    }
  }
}