From: Gustavo Martin Morcuende <gu.martinm@gmail.com>
Date: Sun, 4 Dec 2016 20:09:46 +0000 (+0100)
Subject: StatementPrinter, test for print method green
X-Git-Url: https://git.gumartinm.name/?a=commitdiff_plain;h=895a1c0b62e8c1779d079e17b0f4529dfbf319cc;p=JavaForFun

StatementPrinter, test for print method green
---

diff --git a/TDD/sandromancuso/bank/src/main/java/org/craftedsw/feature/StatementPrinter.java b/TDD/sandromancuso/bank/src/main/java/org/craftedsw/feature/StatementPrinter.java
index e55d7a7..7304ad9 100644
--- a/TDD/sandromancuso/bank/src/main/java/org/craftedsw/feature/StatementPrinter.java
+++ b/TDD/sandromancuso/bank/src/main/java/org/craftedsw/feature/StatementPrinter.java
@@ -1,11 +1,15 @@
 package org.craftedsw.feature;
 
+import java.text.DecimalFormat;
+import java.util.LinkedList;
 import java.util.List;
+import java.util.concurrent.atomic.AtomicInteger;
+import java.util.stream.Collectors;
 
 public class StatementPrinter {
 
 	private static final String STATEMENT_HEADER = "DATE | AMOUNT | BALANCE";
-	
+
 	private final Console console;
 
 	public StatementPrinter(Console console) {
@@ -14,6 +18,22 @@ public class StatementPrinter {
 
 	public void print(List<Transaction> transactions) {
 		console.printLine(STATEMENT_HEADER);
+		AtomicInteger runningBalance = new AtomicInteger(0);
+		transactions.stream()
+					.map(transaction -> statementLine(transaction, runningBalance))
+					.collect(Collectors.toCollection(LinkedList::new))
+					.descendingIterator()
+					.forEachRemaining(console::printLine);
+	}
+
+	private String statementLine(Transaction transaction, AtomicInteger runningBalance) {
+		DecimalFormat decimalFormatter = new DecimalFormat("#.00");
+
+		return transaction.date()
+				+ " | "
+				+ decimalFormatter.format(transaction.ammount())
+				+ " | "
+				+ decimalFormatter.format(runningBalance.addAndGet(transaction.ammount()));
 	}
 
 }
diff --git a/TDD/sandromancuso/bank/src/main/java/org/craftedsw/feature/Transaction.java b/TDD/sandromancuso/bank/src/main/java/org/craftedsw/feature/Transaction.java
index 8ae726c..f5f09da 100644
--- a/TDD/sandromancuso/bank/src/main/java/org/craftedsw/feature/Transaction.java
+++ b/TDD/sandromancuso/bank/src/main/java/org/craftedsw/feature/Transaction.java
@@ -10,6 +10,14 @@ public class Transaction {
 		this.amount = amount;
 	}
 
+	public String date() {
+		return this.date;
+	}
+
+	public int ammount() {
+		return this.amount;
+	}
+	
 	@Override
 	public int hashCode() {
 		final int prime = 31;
diff --git a/TDD/sandromancuso/bank/src/test/java/org/craftedsw/feature/StatementPrinterShould.java b/TDD/sandromancuso/bank/src/test/java/org/craftedsw/feature/StatementPrinterShould.java
index 84eea6a..de914f6 100644
--- a/TDD/sandromancuso/bank/src/test/java/org/craftedsw/feature/StatementPrinterShould.java
+++ b/TDD/sandromancuso/bank/src/test/java/org/craftedsw/feature/StatementPrinterShould.java
@@ -41,9 +41,9 @@ public class StatementPrinterShould {
 		
 		InOrder inOrder = inOrder(console);
 		inOrder.verify(console).printLine("DATE | AMOUNT | BALANCE");
-		inOrder.verify(console).printLine("10/04/2014 | 500.00 | 1400.00");
-		inOrder.verify(console).printLine("02/04/2014 | -100.00 | 900.00");
-		inOrder.verify(console).printLine("01/04/2014 | 1000.00 | 1000.00");
+		inOrder.verify(console).printLine("10/04/2014 | 500,00 | 1400,00");
+		inOrder.verify(console).printLine("02/04/2014 | -100,00 | 900,00");
+		inOrder.verify(console).printLine("01/04/2014 | 1000,00 | 1000,00");
 	}
 
 	private List<Transaction> transactionsContaining(Transaction...transactions) {