iOS xctest metrics测试指标

metrics测试指标

文档: https://developer.apple.com/documentation/xctest/xctmetric

class	描述
XCTCPUMetric	记录性能测试期间 CPU 活动信息的指标
XCTClockMetric	记录性能测试期间所用时间的指标。
XCTMemoryMetric	记录性能测试使用的物理内存的指标。
XCTOSSignpostMetric	用于记录性能测试执行带路标的代码区域所花费的时间的指标。
XCTStorageMetric	记录性能测试逻辑写入存储的数据量的指标。
XCTApplicationLaunchMetric	记录性能测试的应用程序启动持续时间的指标

代码示例:

import XCTest

final class PerformanceTests: XCTestCase {

    override func setUpWithError() throws {
        continueAfterFailure = false
    }

    override func tearDownWithError() throws {
        // Put teardown code here. This method is called after the invocation of each test method in the class.
    }

    func testLaunchPerformance() throws {
        if #available(macOS 10.15, iOS 13.0, tvOS 13.0, watchOS 7.0, *) {
            // This measures how long it takes to launch your application.
            measure(metrics: [XCTApplicationLaunchMetric()]) {
                XCUIApplication(bundleIdentifier: "io.dcloud.uniappx").launch()
            }
        }
    }
}