Add a new spring-boot-sample-test application

Add a sample application that demonstrates recently added testing
features.

See gh-4901

spring-boot-samples/spring-boot-sample-test/src/main/java/sample/test/web/UserVehicleService.java

@@ -0,0 +1,57 @@
+/*
+ * Copyright 2012-2016 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package sample.test.web;
+
+import sample.test.domain.User;
+import sample.test.domain.UserRepository;
+import sample.test.service.VehicleDetails;
+import sample.test.service.VehicleDetailsService;
+import sample.test.service.VehicleIdentificationNumberNotFoundException;
+
+import org.springframework.stereotype.Component;
+import org.springframework.util.Assert;
+
+/**
+ * Controller service used to provide vehicle information for a given user.
+ *
+ * @author Phillip Webb
+ */
+@Component
+public class UserVehicleService {
+
+	private final UserRepository userRepository;
+
+	private final VehicleDetailsService vehicleDetailsService;
+
+	public UserVehicleService(UserRepository userRepository,
+			VehicleDetailsService vehicleDetailsService) {
+		this.userRepository = userRepository;
+		this.vehicleDetailsService = vehicleDetailsService;
+	}
+
+	public VehicleDetails getVehicleDetails(String username)
+			throws UserNameNotFoundException,
+			VehicleIdentificationNumberNotFoundException {
+		Assert.notNull(username, "Username must not be null");
+		User user = this.userRepository.findByUsername(username);
+		if (user == null) {
+			throw new UserNameNotFoundException(username);
+		}
+		return this.vehicleDetailsService.getVehicleDetails(user.getVin());
+	}
+
+}