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NameTests.swift
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NameTests.swift
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//
// NameTests.swift
// CodableTests
//
// Created by Nate Walczak on 9/27/18.
// Copyright © 2018 Detroit Labs. All rights reserved.
//
import XCTest
@testable import Codable
class NameTests: XCTestCase {
func testDecodable() {
// Given
let json = Data("""
{
"first": "Steve",
"last": "Dave"
}
""".utf8)
// When
let name: Name
do {
name = try JSONDecoder().decode(Name.self, from: json)
} catch {
XCTFail(error.localizedDescription)
return
}
// Then
XCTAssertEqual(name.first, "Steve")
XCTAssertEqual(name.last, "Dave")
}
func testArrayDecodable() throws {
// Given
let json = Data("""
[
{ "first": "Gwen", "last": "Stacy" },
{ "first": "Betty", "last": "Brant" },
{ "first": "Mary Jane", "last": "Watson" }
]
""".utf8)
// When
let names: [Name]
do {
names = try JSONDecoder().decode([Name].self, from: json)
} catch {
XCTFail(error.localizedDescription)
return
}
// Then
XCTAssertEqual(names.count, 3)
let firstName = try XCTUnwrap(names.first)
XCTAssertEqual(firstName.first, "Gwen")
XCTAssertEqual(firstName.last, "Stacy")
let secondName = try XCTUnwrap(names.second)
XCTAssertEqual(secondName.first, "Betty")
XCTAssertEqual(secondName.last, "Brant")
let thirdName = try XCTUnwrap(names.third)
XCTAssertEqual(thirdName.first, "Mary Jane")
XCTAssertEqual(thirdName.last, "Watson")
}
func testEmptyArrayDecodable() {
// Given
let json = Data("""
[
]
""".utf8)
// When
let names: [Name]
do {
names = try JSONDecoder().decode([Name].self, from: json)
} catch {
XCTFail(error.localizedDescription)
return
}
// Then
XCTAssertEqual(names.count, 0)
}
func testEncodable() {
// Given
let name = Name()
name.first = "Robert"
name.last = "Webster"
// When
let data: Data
let json: [String: Any]?
do {
data = try JSONEncoder().encode(name)
json = try JSONSerialization.jsonObject(with: data, options: []) as? [String: Any]
} catch {
XCTFail(error.localizedDescription)
return
}
// Then
XCTAssertNotNil(json)
XCTAssertEqual(json?.count, 2)
XCTAssertEqual(json?["first"] as? String, "Robert")
XCTAssertEqual(json?["last"] as? String, "Webster")
}
func testOptionalEncodable() {
// Given
let name = Name()
name.last = "Dynamite"
// When
let data: Data
let json: [String: Any]?
do {
data = try JSONEncoder().encode(name)
json = try JSONSerialization.jsonObject(with: data, options: []) as? [String: Any]
} catch {
XCTFail(error.localizedDescription)
return
}
// Then
XCTAssertNotNil(json)
XCTAssertEqual(json?.count, 1)
XCTAssertEqual(json?["last"] as? String, "Dynamite")
}
func testPropertyListDecodable() {
// Given
let json = Data("""
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
<key>first</key>
<string>Steve</string>
<key>last</key>
<string>Dave</string>
</dict>
</plist>
""".utf8)
// When
let name: Name
do {
name = try PropertyListDecoder().decode(Name.self, from: json)
} catch {
XCTFail(error.localizedDescription)
return
}
// Then
XCTAssertEqual(name.first, "Steve")
XCTAssertEqual(name.last, "Dave")
}
}