refactor to vanilla js

test/base58.test.js

@@ -0,0 +1,96 @@
+
+var assert = require('assert');
+var examples = require('./examples');
+var base58 = require('..');
+
+function exampleRunner(callback) {
+	Object.keys(examples).forEach(function (str) {
+		callback(str, examples[str]);
+	});
+}
+
+describe('Base58', function () {
+
+	before(function () {
+		var valid = true;
+		var count = 0;
+
+		exampleRunner(function (str, num) {
+			count++;
+			if (typeof str !== 'string') {
+				valid = false;
+			}
+			if (typeof num !== 'number') {
+				valid = false;
+			}
+		});
+
+		assert.strictEqual(count > 0, true, 'Expected there to be examples');
+		assert.strictEqual(valid, true, 'Expected the examples to be valid');
+	});
+
+	describe('.encode', function () {
+		it('encodes number to Base58 string', function () {
+			exampleRunner(function (str, num) {
+				assert.strictEqual(base58.encode(num), str);
+			});
+		});
+
+		describe('when passed a string only containing numbers', function () {
+			it('encodes string after first converting it to an integer', function () {
+				exampleRunner(function (str, num) {
+					assert.strictEqual(base58.encode(num.toString()), str);
+				});
+			});
+		});
+
+		describe('when passed a non number', function () {
+			it('throws an error', function () {
+				assert.throws(function () {
+					base58.encode('hi');
+				}, function (err) {
+					return err.message === 'Value passed is not an integer.';
+				});
+			});
+		});
+
+		describe('when passed a float', function () {
+			it('throws an error', function () {
+				assert.throws(function () {
+					base58.encode(3.14);
+				}, function (err) {
+					return err.message === 'Value passed is not an integer.';
+				});
+			});
+		});
+	});
+
+	describe('.decode', function () {
+		it('decodes base58 string to number', function () {
+			exampleRunner(function (str, num) {
+				assert.strictEqual(base58.decode(str), num);
+			});
+		});
+
+		describe('when passed a non string', function () {
+			it('throws an error', function () {
+				assert.throws(function () {
+					base58.decode(123);
+				}, function (err) {
+					return err.message === 'Value passed is not a string.';
+				});
+			});
+		});
+
+		describe('when passed a non base58 string', function () {
+			it('throws an error', function () {
+				assert.throws(function () {
+					base58.decode('>_<');
+				}, function (err) {
+					return err.message === 'Value passed is not a valid Base58 string.';
+				});
+			});
+		});
+	});
+
+});