Easy_066_Plus_One_Test.swift

//
//  Easy_066_Plus_One_Test.swift
//  Solutions
//
//  Created by Di Wu on 7/16/15.
//  Copyright © 2015 diwu. All rights reserved.
//

import XCTest

class Easy_066_Plus_One_Test: XCTestCase, SolutionsTestCase {
    func test_001() {
        var input: [Int] = [1, 9, 9]
        let expected: [Int] = [2, 0, 0]
        asyncHelper(input: &input, expected: expected)
    }
    func test_002() {
        var input: [Int] = [0]
        let expected: [Int] = [1]
        asyncHelper(input: &input, expected: expected)
    }
    func test_003() {
        var input: [Int] = [9]
        let expected: [Int] = [1, 0]
        asyncHelper(input: &input, expected: expected)
    }
    func test_004() {
        var input: [Int] = [9, 9]
        let expected: [Int] = [1, 0, 0]
        asyncHelper(input: &input, expected: expected)
    }
    private func asyncHelper(input: inout [Int], expected: [Int]) {
        weak var expectation: XCTestExpectation? = self.expectation(description:timeOutName())
        var localInput = input
        serialQueue().async(execute: { () -> Void in
            Easy_066_Plus_One.plusOne(&localInput)
            let result = localInput
            assertHelper(result == expected, problemName:self.problemName(), input: localInput, 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: localInput, resultValue:self.timeOutName(), expectedValue: expected)
            }
        }
    }
}