Add unit test for generateWallet and reorganize API files

test/api-test.js

@@ -25,6 +25,7 @@ const transactionResponse = require('./fixtures/transaction-response');
 const accountTransactionsResponse =
   require('./fixtures/account-transactions-response');
 const trustlinesResponse = require('./fixtures/trustlines-response');
+const walletResponse = require('./fixtures/wallet.json');
 
 function checkResult(expected, done, error, response) {
   if (error) {
@@ -117,4 +118,10 @@ describe('RippleAPI', function() {
     this.api.getTrustlines(address, options,
       _.partial(checkResult, trustlinesResponse, done));
   });
+
+  it('generateWallet', function() {
+    withDeterministicPRNG(() => {
+      assert.deepEqual(this.api.generateWallet(), walletResponse);
+    });
+  });
 });

test/fixtures/wallet.json

@@ -0,0 +1,4 @@
+{
+  "address": "ra2d1wnhDFyZGFz62wT3GSRhAEjpLuqfnj",
+  "secret": "ss4JedFMSQJa4mHQz3VZ58ZG4TYWg"
+}

test/mock-prng.js

@@ -12,6 +12,10 @@ function MockPRNG(seed) {
   this.seed = seed || SEED;
 }
 
+/* eslint-disable no-unused-vars */
+MockPRNG.prototype.addEntropy = function(data, estimatedEntropy, source) {};
+/* eslint-enable no-unused-vars */
+
 MockPRNG.prototype.randomWord = function() {
   const i = this.position;
   this.position = (i + 8) % this.seed.length;