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/*
This source file is part of the Swift.org open source project
Copyright (c) 2021 Apple Inc. and the Swift project authors
Licensed under Apache License v2.0 with Runtime Library Exception
See https://swift.org/LICENSE.txt for license information
See https://swift.org/CONTRIBUTORS.txt for Swift project authors
*/
import Foundation
import XCTest
@testable import SwiftDocC
class KeyedEncodingContainerTests: XCTestCase {
struct EncodingStruct: Codable {
var age: Int
var names: [String]
public func encode(to encoder: Encoder) throws {
var container = encoder.container(keyedBy: CodingKeys.self)
try container.encode(age, forKey: .age)
try container.encodeIfNotEmpty(names, forKey: .names)
}
}
func testEncodeIfNotEmpty() throws {
do {
// Test when the array is not empty
let test = EncodingStruct(age: 10, names: ["Winston", "Smith"])
let data = try JSONEncoder().encode(test)
guard let dictionary = (try JSONSerialization.jsonObject(with: data, options: [])) as? [String: Any] else {
XCTFail("Failed to decode test structure")
return
}
XCTAssertEqual(dictionary["age"] as? Int, 10)
XCTAssertEqual(dictionary["names"] as? [String], ["Winston", "Smith"])
}
do {
// Test when the array is empty
let test = EncodingStruct(age: 10, names: [])
let data = try JSONEncoder().encode(test)
guard let dictionary = (try JSONSerialization.jsonObject(with: data, options: [])) as? [String: Any] else {
XCTFail("Failed to decode test structure")
return
}
XCTAssertEqual(dictionary["age"] as? Int, 10)
XCTAssertNil(dictionary["names"])
}
}
}
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