         let actual = orderedDictionary
         let expected: OrderedDictionary<String, Int> = ["A": 1, "B": 2, "C": 3]
         
-        XCTAssertTrue(actual == expected)
+        XCTAssertEqual(actual, expected)
     }
     
     func testRemoveFirstNonEmpty() {

        ]
        
        let plistEncoder = PropertyListEncoder()
        let plistDecoder = PropertyListDecoder()
        
        let data = try! plistEncoder.encode(orderedDictionary)
        let actual = try! plistDecoder.decode(OrderedDictionary<String, Int>.self, from: data)
        
        let expected = orderedDictionary

        let actual = orderedDictionary
        let expected: OrderedDictionary<String, Int> = ["B": 2, "C": 3, "D": 4]
        
        XCTAssertEqual(actual, expected)
    }
    
    func testRemoveLastNonEmpty() {
