✅XCTest

default testing framework, bundled with the Xcode IDE.

📙 書籍

• Test-Driven Development in Swift (2021)

📘 手冊

code

XCTestCase offers methods to run code before each test or all the tests will run, as well as after each test or all the tests did run:

import XCTest
@testable import MyProject

// ⭐️ make a subclass of XCTestCase
class TestsForMyType: XCTestCase {

    /* -------- test case life cycle -------- */
    
    // ⭐️ runs before ALL tests
    override class func setUp() { ... }
    
    // ⭐️ runs after all tests
    override class func tearDown() { ... }
    
    // ⭐️ runs before each test
    override func setUpWithError() throws { ... }

    // ⭐️ runs after each test
    override func tearDownWithError() throws { ... }

    /* -------- test cases -------- */
 
    // ⭐️ method name starting with “test”
    func testThis() { } 
    func testThat() { } 

    // ⭐️ performance test case name starting with “testPerformance”?
    func testPerformanceExample() throws {
        self.measure {
            // code to measure the time of
        }
    }
}

Bool

Compare

Nil

Throws