     override func testToArray() {
         XCTAssertEqual(affix.toArray.map {$0.value!.value}, ["a", "b"])
     }
+
+    override func testMeasure() {
+        XCTAssertEqual(affix.measure, 2)
+    }
 }
 
 class AffixThreeTest: AffixOneTest {


    override var array: [Character] {
        return ["a", "b", "c"]
    }
}


            array.map {$0.value!.value}
        )
    }

    func testMeasure() {
        XCTAssertEqual(affix.measure, 1)
    }
}

class AffixTwoTest: AffixOneTest {
