Question

我有一个包含三个属性的实例。我想在同一个XCTAssert中验证所有三个属性。这可能吗？

例如，而不是这样做：

XCTAssertEqual(myItem.name, "John Doe")
XCTAssertEqual(myItem.age, 35)
XCTAssertEqual(myItem.deptId, 1001)

有没有办法在同一个XCTAssert中完成所有操作？

Answer 1

假设这是你的Item结构：

struct Item {
    let name: String
    let age: Int
    let deptID: Int
}

符合Equatable，并定义==对[{1}}）的平等含义：
```
Item
```
为extension Item: Equatable { static func ==(lhs: Item, rhs: Item) -> Bool { return lhs.name == rhs.name && lhs.age == rhs.age && lhs.deptID == rhs.deptID } }运算符编写测试：
```
==
```

从现在开始，你可以用以下方法检查相等性（在其他测试中）：

func testItemEquality() {
    let original = Item(name: "name", age: 0, deptID: 0)

    let differentName = Item(
        name: "different " + original.name,
        age: original.age,
        deptID: original.deptID
    )

    let differentAge = Item(
        name: original.name,
        age: original.age + 1,
        deptID: original.deptID
    )

    let differentDeptID = Item(
        name: original.name,
        age: original.age,
        deptID: original.deptID + 1
    )

    let completelyDifferent = Item(
        name: "different " + original.name,
        age: original.age + 1,
        deptID: original.deptID + 1
    )

    XCTAssertEqual(original, original)

    XCTAssertNotEqual(original, differentName)
    XCTAssertNotEqual(original, differentAge)
    XCTAssertNotEqual(original, differentDeptID)
    XCTAssertNotEqual(original, completelyDifferent)

    XCTAssertNotEqual(differentName, differentAge)
    XCTAssertNotEqual(differentName, differentDeptID)
    XCTAssertNotEqual(differentName, completelyDifferent)

    XCTAssertNotEqual(differentAge, differentDeptID)
    XCTAssertNotEqual(differentAge, completelyDifferent)

    XCTAssertNotEqual(differentDeptID, completelyDifferent)
}

如何XCTA一次比较几个比较？

1 个答案: