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Make RealmOptional and List conform to Codable
This makes it possible to serialize and deserialize them with the standard library's (en|de)coders such as JSONDecoder, and makes it so that Object subclasses with optional or list properties can have automatically synthesized Codable conformance.
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,220 @@ | ||
| //////////////////////////////////////////////////////////////////////////// | ||
| // | ||
| // Copyright 2019 Realm Inc. | ||
| // | ||
| // Licensed under the Apache License, Version 2.0 (the "License"); | ||
| // you may not use this file except in compliance with the License. | ||
| // You may obtain a copy of the License at | ||
| // | ||
| // http://www.apache.org/licenses/LICENSE-2.0 | ||
| // | ||
| // Unless required by applicable law or agreed to in writing, software | ||
| // distributed under the License is distributed on an "AS IS" BASIS, | ||
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| // See the License for the specific language governing permissions and | ||
| // limitations under the License. | ||
| // | ||
| //////////////////////////////////////////////////////////////////////////// | ||
|
|
||
| import XCTest | ||
| import RealmSwift | ||
|
|
||
| final class CodableObject: Object, Codable { | ||
| @objc dynamic var string: String = "" | ||
| @objc dynamic var data: Data = Data() | ||
| @objc dynamic var date: Date = Date() | ||
| @objc dynamic var int: Int = 0 | ||
| @objc dynamic var int8: Int8 = 0 | ||
| @objc dynamic var int16: Int16 = 0 | ||
| @objc dynamic var int32: Int32 = 0 | ||
| @objc dynamic var int64: Int64 = 0 | ||
| @objc dynamic var float: Float = 0 | ||
| @objc dynamic var double: Double = 0 | ||
| @objc dynamic var bool: Bool = false | ||
|
|
||
| @objc dynamic var stringOpt: String? | ||
| @objc dynamic var dataOpt: Data? | ||
| @objc dynamic var dateOpt: Date? | ||
| var intOpt = RealmOptional<Int>() | ||
| var int8Opt = RealmOptional<Int8>() | ||
| var int16Opt = RealmOptional<Int16>() | ||
| var int32Opt = RealmOptional<Int32>() | ||
| var int64Opt = RealmOptional<Int64>() | ||
| var floatOpt = RealmOptional<Float>() | ||
| var doubleOpt = RealmOptional<Double>() | ||
| var boolOpt = RealmOptional<Bool>() | ||
|
|
||
| var boolList = List<Bool>() | ||
| var intList = List<Int>() | ||
| var int8List = List<Int8>() | ||
| var int16List = List<Int16>() | ||
| var int32List = List<Int32>() | ||
| var int64List = List<Int64>() | ||
| var floatList = List<Float>() | ||
| var doubleList = List<Double>() | ||
| var stringList = List<String>() | ||
| var dataList = List<Data>() | ||
| var dateList = List<Date>() | ||
|
|
||
| var boolOptList = List<Bool?>() | ||
| var intOptList = List<Int?>() | ||
| var int8OptList = List<Int8?>() | ||
| var int16OptList = List<Int16?>() | ||
| var int32OptList = List<Int32?>() | ||
| var int64OptList = List<Int64?>() | ||
| var floatOptList = List<Float?>() | ||
| var doubleOptList = List<Double?>() | ||
| var stringOptList = List<String?>() | ||
| var dataOptList = List<Data?>() | ||
| var dateOptList = List<Date?>() | ||
| } | ||
|
|
||
| class CodableTests: TestCase { | ||
| func decode<T: RealmOptionalType & Codable>(_ type: T.Type, _ str: String) -> RealmOptional<T> { | ||
| let decoder = JSONDecoder() | ||
| return try! decoder.decode([RealmOptional<T>].self, from: str.data(using: .utf8)!).first! | ||
| } | ||
|
|
||
| func encode<T: RealmOptionalType & Codable>(_ value: T?) -> String { | ||
| let encoder = JSONEncoder() | ||
| let opt = RealmOptional<T>() | ||
| opt.value = value | ||
| return try! String(data: encoder.encode([opt]), encoding: .utf8)! | ||
| } | ||
|
|
||
| func testBool() { | ||
| XCTAssertEqual(true, decode(Bool.self, "[true]").value) | ||
| XCTAssertNil(decode(Bool.self, "[null]").value) | ||
| XCTAssertEqual(encode(true), "[true]") | ||
| XCTAssertEqual(encode(nil as Bool?), "[null]") | ||
| } | ||
|
|
||
| func testInt() { | ||
| XCTAssertEqual(1, decode(Int.self, "[1]").value) | ||
| XCTAssertNil(decode(Int.self, "[null]").value) | ||
| XCTAssertEqual(encode(10), "[10]") | ||
| XCTAssertEqual(encode(nil as Int?), "[null]") | ||
| } | ||
|
|
||
| func testFloat() { | ||
| XCTAssertEqual(2.2, decode(Float.self, "[2.2]").value) | ||
| XCTAssertNil(decode(Float.self, "[null]").value) | ||
| XCTAssertEqual(encode(2.25), "[2.25]") | ||
| XCTAssertEqual(encode(nil as Float?), "[null]") | ||
| } | ||
|
|
||
| func testDouble() { | ||
| XCTAssertEqual(2.2, decode(Double.self, "[2.2]").value) | ||
| XCTAssertNil(decode(Double.self, "[null]").value) | ||
| XCTAssertEqual(encode(2.25), "[2.25]") | ||
| XCTAssertEqual(encode(nil as Double?), "[null]") | ||
| } | ||
|
|
||
| func testObject() { | ||
| let str = """ | ||
| { | ||
| "bool": true, | ||
| "string": "abc", | ||
| "int": 123, | ||
| "int8": 123, | ||
| "int16": 123, | ||
| "int32": 123, | ||
| "int64": 123, | ||
| "float": 2.5, | ||
| "double": 2.5, | ||
| "date": 2.5, | ||
| "data": "\(Data("def".utf8).base64EncodedString())", | ||
| "boolOpt": true, | ||
| "stringOpt": "abc", | ||
| "intOpt": 123, | ||
| "int8Opt": 123, | ||
| "int16Opt": 123, | ||
| "int32Opt": 123, | ||
| "int64Opt": 123, | ||
| "floatOpt": 2.5, | ||
| "doubleOpt": 2.5, | ||
| "dateOpt": 2.5, | ||
| "dataOpt": "\(Data("def".utf8).base64EncodedString())", | ||
| "boolList": [true], | ||
| "stringList": ["abc"], | ||
| "intList": [123], | ||
| "int8List": [123], | ||
| "int16List": [123], | ||
| "int32List": [123], | ||
| "int64List": [123], | ||
| "floatList": [2.5], | ||
| "doubleList": [2.5], | ||
| "dateList": [2.5], | ||
| "dataList": ["\(Data("def".utf8).base64EncodedString())"], | ||
| "boolOptList": [true], | ||
| "stringOptList": ["abc"], | ||
| "intOptList": [123], | ||
| "int8OptList": [123], | ||
| "int16OptList": [123], | ||
| "int32OptList": [123], | ||
| "int64OptList": [123], | ||
| "floatOptList": [2.5], | ||
| "doubleOptList": [2.5], | ||
| "dateOptList": [2.5], | ||
| "dataOptList": ["\(Data("def".utf8).base64EncodedString())"], | ||
| } | ||
| """ | ||
| let decoder = JSONDecoder() | ||
| let obj = try! decoder.decode(CodableObject.self, from: Data(str.utf8)) | ||
|
|
||
| XCTAssertEqual(obj.bool, true) | ||
| XCTAssertEqual(obj.int, 123) | ||
| XCTAssertEqual(obj.int8, 123) | ||
| XCTAssertEqual(obj.int16, 123) | ||
| XCTAssertEqual(obj.int32, 123) | ||
| XCTAssertEqual(obj.int64, 123) | ||
| XCTAssertEqual(obj.float, 2.5) | ||
| XCTAssertEqual(obj.double, 2.5) | ||
| XCTAssertEqual(obj.string, "abc") | ||
| XCTAssertEqual(obj.date, Date(timeIntervalSinceReferenceDate: 2.5)) | ||
| XCTAssertEqual(obj.data, Data("def".utf8)) | ||
|
|
||
| XCTAssertEqual(obj.boolOpt.value, true) | ||
| XCTAssertEqual(obj.intOpt.value, 123) | ||
| XCTAssertEqual(obj.int8Opt.value, 123) | ||
| XCTAssertEqual(obj.int16Opt.value, 123) | ||
| XCTAssertEqual(obj.int32Opt.value, 123) | ||
| XCTAssertEqual(obj.int64Opt.value, 123) | ||
| XCTAssertEqual(obj.floatOpt.value, 2.5) | ||
| XCTAssertEqual(obj.doubleOpt.value, 2.5) | ||
| XCTAssertEqual(obj.stringOpt, "abc") | ||
| XCTAssertEqual(obj.dateOpt, Date(timeIntervalSinceReferenceDate: 2.5)) | ||
| XCTAssertEqual(obj.dataOpt, Data("def".utf8)) | ||
|
|
||
| XCTAssertEqual(obj.boolList.first, true) | ||
| XCTAssertEqual(obj.intList.first, 123) | ||
| XCTAssertEqual(obj.int8List.first, 123) | ||
| XCTAssertEqual(obj.int16List.first, 123) | ||
| XCTAssertEqual(obj.int32List.first, 123) | ||
| XCTAssertEqual(obj.int64List.first, 123) | ||
| XCTAssertEqual(obj.floatList.first, 2.5) | ||
| XCTAssertEqual(obj.doubleList.first, 2.5) | ||
| XCTAssertEqual(obj.stringList.first, "abc") | ||
| XCTAssertEqual(obj.dateList.first, Date(timeIntervalSinceReferenceDate: 2.5)) | ||
| XCTAssertEqual(obj.dataList.first, Data("def".utf8)) | ||
|
|
||
| XCTAssertEqual(obj.boolOptList.first, true) | ||
| XCTAssertEqual(obj.intOptList.first, 123) | ||
| XCTAssertEqual(obj.int8OptList.first, 123) | ||
| XCTAssertEqual(obj.int16OptList.first, 123) | ||
| XCTAssertEqual(obj.int32OptList.first, 123) | ||
| XCTAssertEqual(obj.int64OptList.first, 123) | ||
| XCTAssertEqual(obj.floatOptList.first, 2.5) | ||
| XCTAssertEqual(obj.doubleOptList.first, 2.5) | ||
| XCTAssertEqual(obj.stringOptList.first, "abc") | ||
| XCTAssertEqual(obj.dateOptList.first, Date(timeIntervalSinceReferenceDate: 2.5)) | ||
| XCTAssertEqual(obj.dataOptList.first, Data("def".utf8)) | ||
|
|
||
| let expected = "{\"int64Opt\":123,\"int\":123,\"intOptList\":[123],\"boolList\":[true],\"doubleList\":[2.5],\"dateList\":[2.5],\"int32OptList\":[123],\"dateOptList\":[2.5],\"int64OptList\":[123],\"doubleOptList\":[2.5],\"int64List\":[123],\"int8List\":[123],\"string\":\"abc\",\"dataOptList\":[\"ZGVm\"],\"intOpt\":123,\"double\":2.5,\"float\":2.5,\"int32Opt\":123,\"dateOpt\":2.5,\"boolOpt\":true,\"int16Opt\":123,\"stringList\":[\"abc\"],\"dataList\":[\"ZGVm\"],\"boolOptList\":[true],\"date\":2.5,\"int16\":123,\"data\":\"ZGVm\",\"stringOpt\":\"abc\",\"int32\":123,\"int16List\":[123],\"stringOptList\":[\"abc\"],\"dataOpt\":\"ZGVm\",\"int8OptList\":[123],\"int32List\":[123],\"int8\":123,\"int16OptList\":[123],\"intList\":[123],\"int8Opt\":123,\"floatOptList\":[2.5],\"floatOpt\":2.5,\"doubleOpt\":2.5,\"bool\":true,\"floatList\":[2.5],\"int64\":123}" | ||
| let encoder = JSONEncoder() | ||
| XCTAssertEqual(try! String(data: encoder.encode(obj), encoding: .utf8), expected) | ||
| } | ||
| } |