From: Gustavo Martin Morcuende <gu.martinm@gmail.com>
Date: Sun, 4 Dec 2016 17:13:27 +0000 (+0100)
Subject: Tests are failing for the right reasons
X-Git-Url: https://git.gumartinm.name/?a=commitdiff_plain;h=447e4733f0e6051071fb52ea60a5e1d5dd255553;p=JavaForFun

Tests are failing for the right reasons

They throw UnsupportedOperationException because we need the implementations.
---

diff --git a/TDD/sandromancuso/bank/src/main/java/org/craftedsw/feature/Clock.java b/TDD/sandromancuso/bank/src/main/java/org/craftedsw/feature/Clock.java
new file mode 100644
index 0000000..41d35bf
--- /dev/null
+++ b/TDD/sandromancuso/bank/src/main/java/org/craftedsw/feature/Clock.java
@@ -0,0 +1,9 @@
+package org.craftedsw.feature;
+
+public class Clock {
+
+	public String todayAsString() {
+		throw new UnsupportedOperationException();
+	}
+
+}
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 69e932f..2786699 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
@@ -2,4 +2,8 @@ package org.craftedsw.feature;
 
 public class Transaction {
 
+	public Transaction(String date, int amount) {
+		throw new UnsupportedOperationException();
+	}
+
 }
diff --git a/TDD/sandromancuso/bank/src/main/java/org/craftedsw/feature/TransactionRepository.java b/TDD/sandromancuso/bank/src/main/java/org/craftedsw/feature/TransactionRepository.java
new file mode 100644
index 0000000..499e87e
--- /dev/null
+++ b/TDD/sandromancuso/bank/src/main/java/org/craftedsw/feature/TransactionRepository.java
@@ -0,0 +1,19 @@
+package org.craftedsw.feature;
+
+import java.util.List;
+
+public class TransactionRepository {
+
+	public void addDeposit(int amount) {
+		throw new UnsupportedOperationException();
+	}
+
+	public void addWithdrawal(int amount) {
+		throw new UnsupportedOperationException();
+	}
+
+	public List<Transaction> allTransactions() {
+		throw new UnsupportedOperationException();
+	}
+
+}
diff --git a/TDD/sandromancuso/bank/src/test/java/org/craftedsw/feature/AccountShould.java b/TDD/sandromancuso/bank/src/test/java/org/craftedsw/feature/AccountShould.java
index 4a5b781..5daf49c 100644
--- a/TDD/sandromancuso/bank/src/test/java/org/craftedsw/feature/AccountShould.java
+++ b/TDD/sandromancuso/bank/src/test/java/org/craftedsw/feature/AccountShould.java
@@ -40,7 +40,7 @@ public class AccountShould {
 	
 	@Test public void
 	print_a_statement() {
-		List<Transaction> transactions = asList(new Transaction());
+		List<Transaction> transactions = asList(new Transaction("04/12/2016", 100));
 		given(transactionRepository.allTransactions()).willReturn(transactions);
 		
 		account.printStatement();
diff --git a/TDD/sandromancuso/bank/src/test/java/org/craftedsw/feature/TransactionRepository.java b/TDD/sandromancuso/bank/src/test/java/org/craftedsw/feature/TransactionRepository.java
deleted file mode 100644
index 499e87e..0000000
--- a/TDD/sandromancuso/bank/src/test/java/org/craftedsw/feature/TransactionRepository.java
+++ /dev/null
@@ -1,19 +0,0 @@
-package org.craftedsw.feature;
-
-import java.util.List;
-
-public class TransactionRepository {
-
-	public void addDeposit(int amount) {
-		throw new UnsupportedOperationException();
-	}
-
-	public void addWithdrawal(int amount) {
-		throw new UnsupportedOperationException();
-	}
-
-	public List<Transaction> allTransactions() {
-		throw new UnsupportedOperationException();
-	}
-
-}
diff --git a/TDD/sandromancuso/bank/src/test/java/org/craftedsw/feature/TransactionRepositoryShould.java b/TDD/sandromancuso/bank/src/test/java/org/craftedsw/feature/TransactionRepositoryShould.java
new file mode 100644
index 0000000..c661acd
--- /dev/null
+++ b/TDD/sandromancuso/bank/src/test/java/org/craftedsw/feature/TransactionRepositoryShould.java
@@ -0,0 +1,47 @@
+package org.craftedsw.feature;
+
+import static org.hamcrest.CoreMatchers.is;
+import static org.junit.Assert.assertThat;
+import static org.mockito.BDDMockito.given;
+
+import java.util.List;
+
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.mockito.Mock;
+import org.mockito.runners.MockitoJUnitRunner;
+
+// This would be an integration test because underneath there should be
+// a database. For the sake of simplicity we will have an in memory
+// repository.
+@RunWith(MockitoJUnitRunner.class)
+public class TransactionRepositoryShould {
+
+	private static final String TODAY = "04/12/2016";
+
+	@Mock private Clock clock;
+	
+	private TransactionRepository transactionRepository;
+	
+	@Before
+	public void initialise() {
+		transactionRepository = new TransactionRepository();
+	}
+
+	@Test public void
+	create_and_store_a_deposit_transaction() {
+		given(clock.todayAsString()).willReturn(TODAY);
+		transactionRepository.addDeposit(100);
+		
+		List<Transaction> transactions = transactionRepository.allTransactions();
+		
+		assertThat(transactions.size(), is(1));
+		assertThat(transactions.get(0), is(transaction(TODAY, 100)));
+	}
+
+	private Transaction transaction(String date, int amount) {
+		return new Transaction(date, amount);
+	}
+
+}