Acceptance test, README (constraints)

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 Sandro Mancuso: Outside in TDD
 https://www.youtube.com/watch?v=XHnuMjah6ps
 
+
+Lear and practice the double loop of TDD
+Test application from outside, identifying side effects
+
+
+### Problem description - Bank kata
+
+Create a simple bank application with the following features:
+
+    - Deposit into Account
+    - Withdraw from an Account
+    - Print a bank statement to the console
+
+
+## Acceptance criteria
+
+Statement should have transactions in the following format:
+
+> DATE            | AMOUNT    | BALANCE
+> 10 / 04 / 2014  | 500.00    | 1400.00
+> 02 / 04 / 2014  | -100.00   | 900.00
+> 01 / 04 / 2014  | 1000.00   | 1000.00
+
+
+
+## Starting point and constraints
+
+1. Start with a class the following structure:
+
+    public class Account {
+
+        public void deposit(int amount);
+
+        public void withdraw(int amount);
+
+        public void printStatement();
+
+    }
+
+2. You are no allowed to add any other public method to this class.
+
+3. Use Strings and Integers for dates and amounts (keep it simple)
+
+4. Don't wory about spacing in the statement printed on the console
+