MutabilityTests.swift

TLDR

The MutabilityTests.swift file contains test cases for testing the mutability of JSON objects and arrays. It includes methods for testing dictionary mutability, array mutability, value mutability, array removability, and dictionary removability.

Methods

testDictionaryMutability

This method tests the mutability of a JSON dictionary. It initializes a dictionary with different types of values and assigns it to a JSON object. The method then performs various mutations on the JSON object and asserts the expected values.

testArrayMutability

This method tests the mutability of a JSON array. It initializes an array with different types of values and assigns it to a JSON object. The method then performs various mutations on the JSON object and asserts the expected values.

testValueMutability

This method tests the mutability of a JSON value. It initializes a JSON object with different types of values and performs mutations on the values. The method asserts the expected values of the mutated values.

testArrayRemovability

This method tests the removability of elements from a JSON array. It initializes an array and assigns it to a JSON object. The method then removes elements from the JSON object and asserts the expected array values.

testDictionaryRemovability

This method tests the removability of key-value pairs from a JSON dictionary. It initializes a dictionary and assigns it to a JSON object. The method then removes key-value pairs from the JSON object and asserts the expected dictionary values.

//  MutabilityTests.swift
//
//  Copyright (c) 2014 - 2017 Zigii Wong
//
//  Permission is hereby granted, free of charge, to any person obtaining a copy
//  of this software and associated documentation files (the "Software"), to deal
//  in the Software without restriction, including without limitation the rights
//  to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
//  copies of the Software, and to permit persons to whom the Software is
//  furnished to do so, subject to the following conditions:
//
//  The above copyright notice and this permission notice shall be included in
//  all copies or substantial portions of the Software.
//
//  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
//  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
//  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
//  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
//  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
//  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
//  THE SOFTWARE.

import XCTest
import SwiftyJSON

class MutabilityTests: XCTestCase {

    func testDictionaryMutability() {
        let dictionary: [String: Any] = [
            "string": "STRING",
            "number": 9823.212,
            "bool": true,
            "empty": ["nothing"],
            "foo": ["bar": ["1"]],
            "bar": ["foo": ["1": "a"]]
        ]

        var json = JSON(dictionary)
        XCTAssertEqual(json["string"], "STRING")
        XCTAssertEqual(json["number"], 9823.212)
        XCTAssertEqual(json["bool"], true)
        XCTAssertEqual(json["empty"], ["nothing"])

        json["string"] = "muted"
        XCTAssertEqual(json["string"], "muted")

        json["number"] = 9999.0
        XCTAssertEqual(json["number"], 9999.0)

        json["bool"] = false
        XCTAssertEqual(json["bool"], false)

        json["empty"] = []
        XCTAssertEqual(json["empty"], [])

        json["new"] = JSON(["foo": "bar"])
        XCTAssertEqual(json["new"], ["foo": "bar"])

        json["foo"]["bar"] = JSON([])
        XCTAssertEqual(json["foo"]["bar"], [])

        json["bar"]["foo"] = JSON(["2": "b"])
        XCTAssertEqual(json["bar"]["foo"], ["2": "b"])
    }

    func testArrayMutability() {
        let array: [Any] = ["1", "2", 3, true, []]

        var json = JSON(array)
        XCTAssertEqual(json[0], "1")
        XCTAssertEqual(json[1], "2")
        XCTAssertEqual(json[2], 3)
        XCTAssertEqual(json[3], true)
        XCTAssertEqual(json[4], [])

        json[0] = false
        XCTAssertEqual(json[0], false)

        json[1] = 2
        XCTAssertEqual(json[1], 2)

        json[2] = "3"
        XCTAssertEqual(json[2], "3")

        json[3] = [:]
        XCTAssertEqual(json[3], [:])

        json[4] = [1, 2]
        XCTAssertEqual(json[4], [1, 2])
    }

    func testValueMutability() {
        var intArray = JSON([0, 1, 2])
        intArray[0] = JSON(55)
        XCTAssertEqual(intArray[0], 55)
        XCTAssertEqual(intArray[0].intValue, 55)

        var dictionary = JSON(["foo": "bar"])
        dictionary["foo"] = JSON("foo")
        XCTAssertEqual(dictionary["foo"], "foo")
        XCTAssertEqual(dictionary["foo"].stringValue, "foo")

        var number = JSON(1)
        number = JSON("111")
        XCTAssertEqual(number, "111")
        XCTAssertEqual(number.intValue, 111)
        XCTAssertEqual(number.stringValue, "111")

        var boolean = JSON(true)
        boolean = JSON(false)
        XCTAssertEqual(boolean, false)
        XCTAssertEqual(boolean.boolValue, false)
    }

    func testArrayRemovability() {
        let array = ["Test", "Test2", "Test3"]
        var json = JSON(array)

        json.arrayObject?.removeFirst()
        XCTAssertEqual(false, json.arrayValue.isEmpty)
        XCTAssertEqual(json.arrayValue, ["Test2", "Test3"])

        json.arrayObject?.removeLast()
        XCTAssertEqual(false, json.arrayValue.isEmpty)
        XCTAssertEqual(json.arrayValue, ["Test2"])

        json.arrayObject?.removeAll()
        XCTAssertEqual(true, json.arrayValue.isEmpty)
        XCTAssertEqual(JSON([]), json)
    }

    func testDictionaryRemovability() {
        let dictionary: [String: Any] = ["key1": "Value1", "key2": 2, "key3": true]
        var json = JSON(dictionary)

        json.dictionaryObject?.removeValue(forKey: "key1")
        XCTAssertEqual(false, json.dictionaryValue.isEmpty)
        XCTAssertEqual(json.dictionaryValue, ["key2": 2, "key3": true])

        json.dictionaryObject?.removeValue(forKey: "key3")
        XCTAssertEqual(false, json.dictionaryValue.isEmpty)
        XCTAssertEqual(json.dictionaryValue, ["key2": 2])

        json.dictionaryObject?.removeAll()
        XCTAssertEqual(true, json.dictionaryValue.isEmpty)
        XCTAssertEqual(json.dictionaryValue, [:])
    }
}