Added Conjured tests, 2 fail 1 passes

swift/Tests/GildedRoseTests/ConjuredRules.swift

@@ -0,0 +1,37 @@
+//
+//  ConjuredRules.swift
+//  GildedRose
+//
+//  Created by Lucas van Dongen on 23/11/2020.
+//
+
+@testable import GildedRose
+import XCTest
+
+class ConjuredRules: XCTestCase {
+    private let manaCakeItem = Item(name: "Conjured Mana Cake", sellIn: 3, quality: 6)
+    private let differentConjuredItem = Item(name: "Conjured Different Name", sellIn: 3, quality: 6)
+    private let conjuredDifferentPlaceInNameItem = Item(name: "This item has been conjured", sellIn: 3, quality: 6)
+    private let notAConjuredItem = Item(name: "Regular Item", sellIn: 3, quality: 6)
+
+    //- "Conjured" items degrade in Quality twice as fast as normal items
+    func testConjuredDegradesTwiceAsFast() {
+        let initialQuality = manaCakeItem.quality
+        let system = GildedRose(items: [manaCakeItem])
+
+        system.updateQuality()
+        XCTAssertEqual(system.items.first!.quality, initialQuality - 2)
+    }
+
+    //- All items with "Conjured" in their name are considered conjured
+    func testAnythingConjured() {
+        XCTAssertTrue(differentConjuredItem.updated(hasExpectedQuality: 4))
+        XCTAssertTrue(conjuredDifferentPlaceInNameItem.updated(hasExpectedQuality: 4))
+        XCTAssertTrue(manaCakeItem.updated(hasExpectedQuality: 4))
+    }
+
+    //- All items that do not have "Conjured" in their name are not considered conjured
+    func testNonConjured() {
+        XCTAssertTrue(notAConjuredItem.updated(hasExpectedQuality: 5))
+    }
+}