added client tests

lib/ProductList/Client.js

@@ -6,6 +6,8 @@
 
 'use strict';
 
+const errors = require('../errors');
+
 class Client {
   /**
    * Create a new product service client object holding the credentials to
@@ -24,6 +26,9 @@ class Client {
    *   from the username but in caps <MANDANTID>
    */
   constructor({ username, password, id = null }) {
+    if (!username || !password) {
+      throw new Error(errors.usage.missingClientCredentials);
+    }
     /** @type {string} */
     this._username = username;
     /** @type {string} */

lib/ProductList/Product.js

@@ -39,6 +39,13 @@ class Product {
     return this._price;
   }
 
+  /**
+   * @returns {string}
+   */
+  getName() {
+    return this._name;
+  }
+
   /**
    * Checks the validity of the product by validating the id.
    * 

lib/errors.js

@@ -24,6 +24,7 @@ module.exports = {
     missingPartnerCredentials: '3004: The api requires valid partner credentials including the id and the secret!',
     missingPositionParameters: '3005: A position requires at least the productCode and a voucherLayout!',
     invalidLayoutZone: '3006: Invalid voucher layout given: ',
-    missingProductClients: '3007: The product client credentials are required to make use of the product list. Please add credentials with internetmarke.enableProductList!'  
+    missingProductClients: '3007: The product client credentials are required to make use of the product list. Please add credentials with internetmarke.enableProductList!',
+    missingClientCredentials: '3008: The api requires valid client credentials including the username and password!'
   }
 };

test/ProductList/Client.test.js

@@ -0,0 +1,37 @@
+const Client = require('../../lib/ProductList/Client'),
+  errors = require('../../lib/errors');
+
+describe('Client', () => {
+  const args = {
+    username: 'myusername',
+    password: '#MY_PASS',
+    id: 'myid'
+  };
+
+  it('should require client credentials', () => {
+    (() => {
+      const client = new Client();
+    }).should.throw(errors.usage.missingClientCredentials);
+  });
+
+  it('should create instance with demo data', () => {
+    const client = new Client(args);
+
+    client.should.be.ok();
+
+    client.getUsername().should.equal(args.username);
+    client.getPassword().should.equal(args.password);
+    client.getId().should.equal(args.id);
+  });
+
+  it('should generate the client id if not given', () {
+    const credentials = {
+      username: 'myusername',
+      password: '*****'
+    };
+
+    const client = new Client(credentials);
+
+    client.getId().shoul.equal(credentials.username.toUpperCase());
+  });
+});