working

lab-brae/index.js

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+'use strict';
+
+const greet = require('./lib/greet.js');
+
+greet.sayHello('brae');
+greet.sayBye();

lab-brae/lib/greet.js

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+'use strict';
+
+module.exports = exports = {};
+
+exports.sayHello = function(name) {
+  if (arguments.length === 0) throw new Error('name not provided');
+  return `Hello ${name}`;
+};
+
+  exports.sayBye = function() {
+  console.log('see you later');
+};

lab-brae/test/greet-test.js

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+'use strict';
+
+const greet = require('../lib/greet.js');
+const assert = require('assert');
+
+describe('Greet Module', function() {
+  describe('#sayHello', function() {
+    it('should return Hello brae', function() {
+      var result = greet.sayHello('brae');
+      assert.ok(result === 'Hello brae', 'not equal to Hello brae');
+    });
+
+    it('should throw a missing name error', function() {
+      assert.throws(function() {
+        greet.sayHello();
+      }, 'error not thrown');
+    });
+  });
+
+  describe('#sayBye', function() {
+    it('should return see you later', function() {
+      var bye = 'see you later';
+      assert.ok(bye === 'see you later', 'not equal to see you later');
+    });
+  });
+});