Converted substitute operation, added tests & moved to OperationError

2018-05-11 16:32:19 +01:00
parent 350d10d98b
commit 2d6a56343b
8 changed files with 125 additions and 12 deletions
@@ -6,6 +6,7 @@

 import Operation from "../Operation";
 import Utils from "../Utils";
+import OperationError from "../errors/OperationError";

 /**
 * Affine Cipher Decode operation
@@ -50,11 +51,11 @@ class AffineCipherDecode extends Operation {
        let output = "";

        if (!/^\+?(0|[1-9]\d*)$/.test(a) || !/^\+?(0|[1-9]\d*)$/.test(b)) {
-            return "The values of a and b can only be integers.";
+            throw new OperationError("The values of a and b can only be integers.");
        }

        if (Utils.gcd(a, 26) !== 1) {
-            return "The value of `a` must be coprime to 26.";
+            throw new OperationError("The value of `a` must be coprime to 26.");
        }

        for (let i = 0; i < input.length; i++) {