单元测试和UI测试

August 14, 2020
xcode11中略有改变，简单代码示例:
@testable import CommoniOS // CommoniOS为需要测试的模块名，此处和项目名一致。引用后可以使用项目中的类，例如 Regular
import XCTest

class CommoniOSTests: XCTestCase {
    override func setUpWithError() throws {
        // 测试前执行
    }

    override func tearDownWithError() throws {
        // 测试后执行
    }

    override func setUp() {
        super.setUp()
    }

    override func tearDown() {
        super.tearDown()
    }

    // 测试方法以`test`为开头
    func testExample() throws {
        let a = 1
        let b = 1
        XCTAssert(a == b)
    }

    // CommoniOS为需要测试的模块名，此处和项目名一致。引用后可以使用项目中的类，例如 Regular
    func testRegular() throws {
        let matchedArray = Regular.matches(for: "(?<=\\().*(?=\\))", in: "(三四十)" as String)
        XCTAssert(matchedArray[0] == "三四十")
    }

    // 耗时操作
    func testDelay() {
        wait(interval: 10) {
            let data = NSData(contentsOf: URL(string: "https://www.baidu.com/s?wd=%E4%BB%8A%E6%97%A5%E6%96%B0%E9%B2%9C%E4%BA%8B&tn=SE_Pclogo_6ysd4c7a&sa=ire_dl_gh_logo&rsv_dl=igh_logo_pc")!)
            XCTAssertNotNil(data)
        }
    }

    func testPerformanceExample() throws {
        // This is an example of a performance test case.
        self.measure {
            // Put the code you want to measure the time of here.
        }
    }
}

extension XCTestCase {
    func wait(interval: TimeInterval = 0.1, completion: @escaping (() -> Void)) {
        let exp = expectation(description: "")
        DispatchQueue.main.asyncAfter(deadline: .now() + interval) {
            completion() // 耗时操作，请求完数据后调用fullfill
            exp.fulfill()
        }
        waitForExpectations(timeout: interval)
    }
}