Medium_091_Decode_Ways_Test.swift

//
//  Medium_091_Decode_Ways_Test.swift
//  Solutions
//
//  Created by Di Wu on 10/23/15.
//  Copyright © 2015 diwu. All rights reserved.
//

import XCTest

class Medium_091_Decode_Ways_Test: XCTestCase, SolutionsTestCase {
    func test_001() {
        let input: String = "12"
        let expected: Int = 2
        asyncHelper(input: input, expected: expected)
    }
    func test_002() {
        let input: String = "125"
        let expected: Int = 3
        asyncHelper(input: input, expected: expected)
    }
    func test_003() {
        let input: String = "127"
        let expected: Int = 2
        asyncHelper(input: input, expected: expected)
    }
    func test_004() {
        let input: String = "262"
        let expected: Int = 2
        asyncHelper(input: input, expected: expected)
    }
    func test_005() {
        let input: String = "212"
        let expected: Int = 3
        asyncHelper(input: input, expected: expected)
    }
    func test_006() {
        let input: String = "10"
        let expected: Int = 1
        asyncHelper(input: input, expected: expected)
    }
    func test_007() {
        let input: String = "1027"
        let expected: Int = 1
        asyncHelper(input: input, expected: expected)
    }
    func test_008() {
        let input: String = "10272"
        let expected: Int = 1
        asyncHelper(input: input, expected: expected)
    }
    func test_009() {
        let input: String = "102727"
        let expected: Int = 1
        asyncHelper(input: input, expected: expected)
    }
    func test_010() {
        let input: String = "10272720"
        let expected: Int = 1
        asyncHelper(input: input, expected: expected)
    }
    func test_011() {
        let input: String = "10272721"
        let expected: Int = 2
        asyncHelper(input: input, expected: expected)
    }

    private func asyncHelper(input: String, expected: Int) {
        weak var expectation: XCTestExpectation? = self.expectation(description:timeOutName())
        serialQueue().async(execute: { () -> Void in
            let result = Medium_091_Decode_Ways.numDecodings(input)
            assertHelper(result == expected, problemName:self.problemName(), input: input, resultValue: result, expectedValue: expected)
            if let unwrapped = expectation {
                unwrapped.fulfill()
            }
        })
        waitForExpectations(timeout:timeOut()) { (error: Error?) -> Void in
            if error != nil {
                assertHelper(false, problemName:self.problemName(), input: input, resultValue:self.timeOutName(), expectedValue: expected)
            }
        }
    }
}