Add test cases and debug output

tshemsedinov · tshemsedinov · commit d108ebb514f7 · 2018-02-22T02:54:47.000+02:00
diff --git a/JavaScript/2-transaction.js b/JavaScript/2-transaction.js
@@ -3,17 +3,17 @@
 function Transaction() {}
 
 Transaction.start = (data) => {
-  console.log('start transaction');
+  console.log('\nstart transaction');
   let delta = {};
 
   const methods = {
     commit: () => {
-      console.log('commit transaction');
+      console.log('\ncommit transaction');
       Object.assign(data, delta);
       delta = {};
     },
     rollback: () => {
-      console.log('rollback transaction');
+      console.log('\nrollback transaction');
       delta = {};
     }
   };
@@ -35,25 +35,25 @@ Transaction.start = (data) => {
 
 // Usage
 
-const data = { name: 'Marcus Aurelius', city: 'Rome', born: 121 };
+const data = { name: 'Marcus Aurelius', born: 121 };
 
 const transaction = Transaction.start(data);
-console.log(JSON.stringify(data), JSON.stringify(transaction));
-console.dir({ data, transaction });
+console.log('data', JSON.stringify(data));
+console.log('transaction', JSON.stringify(transaction));
 
 transaction.name = 'Mao Zedong';
 transaction.born = 1893;
-console.log('JSON:', JSON.stringify(data), JSON.stringify(transaction));
-console.dir({ data, transaction });
+console.log('data', JSON.stringify(data));
+console.log('transaction', JSON.stringify(transaction));
 
 transaction.commit();
-console.log('JSON:', JSON.stringify(data), JSON.stringify(transaction));
-console.dir({ data, transaction });
+console.log('data', JSON.stringify(data));
+console.log('transaction', JSON.stringify(transaction));
 
-transaction.city = 'Shaoshan';
-console.log('JSON:', JSON.stringify(data), JSON.stringify(transaction));
-console.dir({ data, transaction });
+transaction.born = 1976;
+console.log('data', JSON.stringify(data));
+console.log('transaction', JSON.stringify(transaction));
 
 transaction.rollback();
-console.log('JSON:', JSON.stringify(data), JSON.stringify(transaction));
-console.dir({ data, transaction });
+console.log('data', JSON.stringify(data));
+console.log('transaction', JSON.stringify(transaction));
