Add tests

Author: bwreid

filter/core.spec.js

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+var assert = require('assert'),
+    core   = require('./core');
+
+describe('Filter', function() {
+  describe('#onlyEven()', function () {
+    it('returns only those numbers that are even', function () {
+      var array = [10,15,20,25,30,35];
+      assert.deepEqual([10,20,30], core.onlyEven(array));
+    });
+  });
+
+  describe('#onlyOneWord()', function () {
+    it('returns only those strings with a single word (no spaces)', function () {
+      var array = ['return', 'phrases', 'with one word'];
+      assert.deepEqual(['return', 'phrases'], core.onlyOneWord(array));
+    });
+  });
+
+  describe('#positiveRowsOnly()', function () {
+    it('return only the rows in the matrix that have all positive integers', function () {
+      var matrix = [[1, 10,-100],
+                    [2,-20, 200],
+                    [3, 30, 300]];
+      var result = [[3, 30, 300]];
+      assert.deepEqual(result, core.positiveRowsOnly(matrix));
+    });
+  });
+
+  describe('#allSameVowels()', function () {
+    it('return only those words where all the vowels are the same', function () {
+      var array = ['racecar', 'amalgam', 'oligopoly', 'zoom'];
+      assert.deepEqual(['amalgam', 'zoom'], core.allSameVowels(array));
+    });
+  });
+});

map/core.spec.js

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+var assert = require('assert'),
+    core   = require('./core');
+
+describe('Map', function() {
+  describe('#multiplyBy10()', function () {
+    it('multiplies all elements in an array by 10', function () {
+      var array = [45, 1, -10, 11, 250];
+      assert.deepEqual([450, 10, -100, 110, 2500], core.multiplyBy10(array));
+    });
+  });
+
+  describe('#shiftRight()', function () {
+    it('shifts items in an array to the right by one', function () {
+      var array = [{ name: '' }, 10, "left-side"];
+      assert.deepEqual(["left-side", { name: '' }, 10], core.shiftRight(array));
+    });
+  });
+
+  describe('#onlyVowels()', function () {
+    it('removes any non-vowel character from words in an array', function () {
+      var array = ['average', 'exceptional', 'amazing'];
+      assert.deepEqual(['aeae', 'eeioa', 'aai'], core.onlyVowels(array));
+    });
+  });
+
+  describe('#doubleMatrix()', function () {
+    it('doubles the numbers in the matrix, maintaining the same structure', function () {
+      var matrix = [[1,2,3],
+                    [4,5,6],
+                    [7,8,9]];
+      var result = [[2,4,6],
+                    [8,10,12],
+                    [14,16,18]];
+      assert.deepEqual(result, core.doubleMatrix(matrix));
+    });
+  });
+});

reduce/core.spec.js

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+var assert = require('assert'),
+    core   = require('./core');
+
+describe('Reduce', function() {
+  describe('#sum()', function () {
+    it('sum all the numbers in the array', function () {
+      var array = [10,15,20,25,30,35];
+      assert.equal(135, core.sum(array));
+    });
+  });
+
+  describe('#productAll()', function () {
+    it('return the product of all items in the matrix', function () {
+      var matrix = [[1, 2, 3],
+                    [4, 5],
+                    [6]];
+      assert.equal(720, core.productAll(matrix));
+    });
+  });
+  
+  describe('#objectify()', function () {
+    it('turns an array of arrays into an object', function () {
+      var matrix = [['Thundercats', '80s'],
+                    ['The Powerpuff Girls', '90s'],
+                    ['Sealab 2021', '00s']];
+      var result = { 'Thundercats': '80s',
+                     'The Powerpuff Girls': '90s',
+                     'Sealab 2021': '00s' };
+      assert.deepEqual(result, core.objectify(matrix));
+    });
+  });
+
+  describe('#luckyNumbers()', function () {
+    it('return a fortune like sentence with lucky numbers', function () {
+      var array  = [30, 48, 11, 5, 32];
+      var result = 'Your lucky numbers are: 30, 48, 11, 5, and 32';
+      assert.equal(result, core.luckyNumbers(array));
+    });
+  });
+});