Adjust charrnn test option length (#326)

* changed 500 to 100 to shorted test time

* fixed .tobe() to match option

* changed vocab size to 64

* changed timeout to 12000

Author: joeyklee

src/CharRNN/index_test.js

@@ -9,7 +9,7 @@ const RNN_MODEL_URL = 'https://raw.githubusercontent.com/ml5js/ml5-data-and-mode
 
 const RNN_MODEL_DEFAULTS = {
   cellsAmount: 2,
-  vocabSize: 223
+  vocabSize: 64
 };
 
 const RNN_DEFAULTS = {
@@ -21,15 +21,15 @@ const RNN_DEFAULTS = {
 
 const RNN_OPTIONS = {
   seed: 'the meaning of pizza is: ',
-  length: 500,
+  length: 100,
   temperature: 0.7
 }
 
 describe('charRnn', () => {
   let rnn;
 
   beforeAll(async () => {
-    jasmine.DEFAULT_TIMEOUT_INTERVAL = 60000; //set extra long interval due to issues with CharRNN generation time
+    jasmine.DEFAULT_TIMEOUT_INTERVAL = 120000; //set extra long interval due to issues with CharRNN generation time
     rnn  = await charRNN(RNN_MODEL_URL, undefined);
   });
 
@@ -54,7 +54,7 @@ describe('charRnn', () => {
 
     it('generates content that follows the set options', async() => {
       const result = await rnn.generate(RNN_OPTIONS);
-      expect(result.sample.length).toBe(500);
+      expect(result.sample.length).toBe(100);
     });
   });
 });