Some String tests

app/strings.js

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+if (typeof define !== 'function') { var define = require('amdefine')(module); }
+
+define(function() {
+  return {
+    reduceString: function(str, amount) {
+    },
+    wordWrap: function(str, cols) {
+    },
+    reverseString: function(str) {
+    }
+}
+});

tests/app/strings.js

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+/*globals describe:true, it:true, expect:true, beforeEach:true */
+if (typeof define !== 'function') { var define = require('amdefine')(module); }
+if (typeof expect !== 'function') { var expect = require('expect.js'); }
+
+define([
+  'app/strings'
+], function(answers) {
+
+  describe('strings', function() {
+    it('you should be able to reduce duplicate characters to a desired minimum', function() {
+      expect(answers.reduceString('aaaabbbb', 2)).to.eql('aabb');
+      expect(answers.reduceString('xaaabbbb', 2)).to.eql('xaabb');
+      expect(answers.reduceString('aaaabbbb', 1)).to.eql('ab');
+      expect(answers.reduceString('aaxxxaabbbb', 2)).to.eql('aaxxaabb');
+    });
+
+    it('you should be able to wrap lines at some arbitrary count, but don\'t break words', function() {
+      //create the data
+      var formattedStr;
+      var data = [
+        'abcdef abcde abc def',
+        'abc abc abc',
+        'a b c def'
+      ];
+      var wrapCol = 5;
+
+      var computedData = [
+        'abcdef\nabcde\nabc\ndef',
+        'abc\nabc\nabc',
+        'a b c\ndef'
+      ];
+
+
+      data.forEach(function(str, index) {
+        formattedStr = answers.wordWrap(str, wrapCol);
+        //every char at the wrap line should be a space
+        expect(formattedStr).to.eql(computedData[index]);
+        //the last characters should still be the last characters
+        expect(formattedStr.charAt(formattedStr.length-1)).to.eql(computedData[index].charAt(computedData[index].length-1));
+      });
+
+    });
+    it('you should be able to reverse a string', function() {
+      var data = [
+        'abc',
+        'i am a string of characters',
+        'A man, a plan, a canal: Panama'
+      ];
+
+      data.forEach(function(str) {
+        var result = answers.reverseString(str);
+        //should be same length
+        expect(result.length).to.eql(str.length);
+        //middle character should be the same
+        var mid = Math.floor(result.length);
+        expect(result.charAt(mid)).to.eql(str.charAt(mid));
+      });
+    });
+  });
+});