              expected: UInt128(upperBits: 1, lowerBits: 0)),
             (input: UInt128(upperBits: 0, lowerBits: 1),
              shiftWidth: UInt64(1),
-             expected: UInt128(upperBits: 0, lowerBits: 2))
-        ]
+             expected: UInt128(upperBits: 0, lowerBits: 2))]
         
         tests.forEach { test in
             var testValue = test.input

             expected: UInt128(upperBits: 0, lowerBits: 1)),
            (input: UInt128(upperBits: 0, lowerBits: 1),
             shiftWidth: UInt64(1),
             expected: UInt128())
        ]
        
        tests.forEach { test in
            var testValue = test.input

    
    func testLeadingZeroBitCount() {
        let tests = [
            (input: UInt128.min, result: 128),
            (input: UInt128(1), result: 127),
            (input: UInt128(UInt64.max), result: 64),
            (input: UInt128(upperBits: 1, lowerBits: 0), result: 63),
            (input: UInt128.max, result: 0)]
        
        tests.forEach { test in
            XCTAssertEqual(test.input.leadingZeroBitCount, test.result)
