Merge pull request #16 from Laffini/BDD

BDD

Author: Laffini

pom.xml

@@ -11,30 +11,48 @@
 	</parent>
 	<groupId>net.laffyco</groupId>
 	<artifactId>java-matching-engine</artifactId>
-	<version>0.0.1-SNAPSHOT</version>
+	<version>0.1.0</version>
 	<name>java-matching-engine</name>
 	<description>A matching engine made in Java</description>
 	<properties>
 		<java.version>1.8</java.version>
 	</properties>
 	<dependencies>
+
+		<!-- Third party -->
 		<dependency>
 			<groupId>org.springframework.boot</groupId>
 			<artifactId>spring-boot-starter-web</artifactId>
 		</dependency>
-
 		<dependency>
 			<groupId>org.springframework.boot</groupId>
-			<artifactId>spring-boot-starter-test</artifactId>
-			<scope>test</scope>
+			<artifactId>spring-boot-devtools</artifactId>
+			<scope>runtime</scope>
 		</dependency>
 
+		<!-- Test -->
+		<dependency>
+			<groupId>io.cucumber</groupId>
+			<artifactId>cucumber-java</artifactId>
+			<version>7.0.0</version>
+		</dependency>
+		<dependency>
+			<groupId>io.cucumber</groupId>
+			<artifactId>cucumber-junit</artifactId>
+			<version>7.0.0</version>
+			<scope>test</scope>
+		</dependency>
+		<dependency>
+			<groupId>org.junit.vintage</groupId>
+			<artifactId>junit-vintage-engine</artifactId>
+			<version>5.8.1</version>
+			<scope>test</scope>
+		</dependency>
 		<dependency>
 			<groupId>org.springframework.boot</groupId>
-			<artifactId>spring-boot-devtools</artifactId>
-			<scope>runtime</scope>
+			<artifactId>spring-boot-starter-test</artifactId>
+			<scope>test</scope>
 		</dependency>
-
 	</dependencies>
 
 	<build>
@@ -43,7 +61,27 @@
 				<groupId>org.springframework.boot</groupId>
 				<artifactId>spring-boot-maven-plugin</artifactId>
 			</plugin>
+			<plugin>
+				<groupId>org.apache.maven.plugins</groupId>
+				<artifactId>maven-surefire-plugin</artifactId>
+			</plugin>
 		</plugins>
+		<pluginManagement>
+			<plugins>
+				<plugin>
+					<groupId>org.apache.maven.plugins</groupId>
+					<artifactId>maven-surefire-plugin</artifactId>
+					<version>3.0.0-M5</version>
+					<configuration>
+						<includes>
+							*
+						</includes>
+						<parallel>methods</parallel>
+						<threadCount>10</threadCount>
+					</configuration>
+				</plugin>
+			</plugins>
+		</pluginManagement>
 	</build>
 
 	<distributionManagement>

src/test/java/net/laffyco/javamatchingengine/scenarios/CucumberRunner.java

@@ -0,0 +1,19 @@
+package net.laffyco.javamatchingengine.scenarios;
+
+import io.cucumber.junit.Cucumber;
+import io.cucumber.junit.CucumberOptions;
+import org.junit.runner.RunWith;
+
+import static io.cucumber.junit.CucumberOptions.SnippetType.CAMELCASE;
+
+/**
+ * Cucumber test runner.
+ *
+ * @author Laffini
+ */
+@RunWith(Cucumber.class)
+@CucumberOptions(plugin = {"pretty", "summary"}, snippets = CAMELCASE,
+        features = "src/test/java/net/laffyco/javamatchingengine/scenarios/")
+public class CucumberRunner {
+    // Intentionally left blank.
+}

src/test/java/net/laffyco/javamatchingengine/scenarios/orders/Orders.feature

@@ -0,0 +1,8 @@
+Feature: Orders
+
+  Tests related to orders.
+
+  Scenario: Adding an order
+    Given There is an instance of the order book
+    When I add an order
+    Then It is added to the order book

src/test/java/net/laffyco/javamatchingengine/scenarios/orders/OrdersSteps.java

@@ -0,0 +1,59 @@
+package net.laffyco.javamatchingengine.scenarios.orders;
+
+import io.cucumber.java.en.Given;
+import io.cucumber.java.en.Then;
+import io.cucumber.java.en.When;
+import net.laffyco.javamatchingengine.engine.Order;
+import net.laffyco.javamatchingengine.engine.OrderBook;
+import net.laffyco.javamatchingengine.engine.Side;
+
+import java.util.List;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertTrue;
+
+/**
+ * Orders feature steps.
+ * @author Laffini
+ */
+public class OrdersSteps {
+
+    /**
+     * Order book instance.
+     */
+    private OrderBook orderBook;
+
+    /**
+     * Order to add to order book.
+     */
+    private Order order;
+
+    @Given("There is an instance of the order book")
+    public void createOrderBook() {
+        this.orderBook = new OrderBook();
+    }
+
+    @When("I add an order")
+    public void addOrder() {
+        final double amount = 10;
+        final double price = 25.59;
+        final Side side = Side.BUY;
+
+        this.order = new Order(amount, price, side);
+        this.orderBook.process(order);
+    }
+
+    @Then("It is added to the order book")
+    public void orderIsAdded() {
+        final List<Order> buyOrders = this.orderBook.getBuyOrders();
+
+        // Assert there is only one order.
+        final int oneOrder = 1;
+        assertEquals(oneOrder, buyOrders.size());
+        assertTrue(this.orderBook.getSellOrders().isEmpty());
+
+        // Assert orders are equal match.
+        final Order addedOrder = buyOrders.get(0);
+        assertEquals(this.order, addedOrder);
+    }
+}

src/test/resources/cucumber.properties

@@ -0,0 +1 @@
+cucumber.publish.quiet=true