Fixed incodes and outcodes

Author: cblanc

index.js

@@ -1,7 +1,8 @@
 "use strict";
 
 var validationRegex = /^[a-z0-9]{1,4}\s*?\d[a-z]{2}$/i,
-		incodeRegex = /\d[a-z]{2}$/i;
+		incodeRegex = /\d[a-z]{2}$/i,
+		validOutcodeRegex = /[a-z0-9]{1,4}/i;
 
 function isValidPostcode (postcode) {
 	return !!postcode.match(validationRegex);
@@ -24,6 +25,10 @@ function Postcode (rawPostcode) {
 	}
 }
 
+Postcode.validOutcode = function (outcode) {
+	return !!outcode.match(validationRegex);
+}
+
 Postcode.prototype.valid = function () {
 	return this._valid;
 }

tests/unit.js

@@ -41,6 +41,29 @@ describe("Postcode normalisation", function () {
 	});
 });
 
+describe("Postcode.validOutcode", function () {
+	it ("should return true for valid outcodes", function (done) {
+		testData = fs.readFile(path.join(dataDir, "outcodes.json"), function (error, data) {
+			if (error) throw error;
+			testData = JSON.parse(data);
+			testData.forEach(function (test) {
+				assert.isTrue(Postcode.validOutcode(test.expected));
+			});
+			done();
+		});
+	});
+	it ("should return false for invalid outcodes", function (done) {
+		testData = fs.readFile(path.join(dataDir, "incodes.json"), function (error, data) {
+			if (error) throw error;
+			testData = JSON.parse(data);
+			testData.forEach(function (test) {
+				assert.isFalse(Postcode.validOutcode(test.expected));
+			});
+			done();
+		});
+	});
+})
+
 describe("Incode parsing", function () {
 	before(function (done) {
 		testData = fs.readFile(path.join(dataDir, "incodes.json"), function (error, data) {