Two choices are available to users for welcome page

* For a jar deployment add classpath:static/index.html
(works via Spring MVC mapping)
* For a war the same thing works, but so does adding
index.html to src/main/webapp (works via container
default servlet)

[Fixes #54092261] [bs-252]

spring-boot-samples/spring-boot-sample-web-static/src/test/java/org/springframework/boot/sample/ui/SampleWebStaticApplicationTests.java

@@ -0,0 +1,84 @@
+package org.springframework.boot.sample.ui;
+
+import java.io.IOException;
+import java.util.concurrent.Callable;
+import java.util.concurrent.Executors;
+import java.util.concurrent.Future;
+import java.util.concurrent.TimeUnit;
+
+import org.junit.AfterClass;
+import org.junit.BeforeClass;
+import org.junit.Test;
+import org.springframework.boot.SpringApplication;
+import org.springframework.context.ConfigurableApplicationContext;
+import org.springframework.http.HttpStatus;
+import org.springframework.http.MediaType;
+import org.springframework.http.ResponseEntity;
+import org.springframework.http.client.ClientHttpResponse;
+import org.springframework.web.client.DefaultResponseErrorHandler;
+import org.springframework.web.client.RestTemplate;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertTrue;
+
+/**
+ * Basic integration tests for demo application.
+ * 
+ * @author Dave Syer
+ */
+public class SampleWebStaticApplicationTests {
+
+	private static ConfigurableApplicationContext context;
+
+	@BeforeClass
+	public static void start() throws Exception {
+		Future<ConfigurableApplicationContext> future = Executors
+				.newSingleThreadExecutor().submit(
+						new Callable<ConfigurableApplicationContext>() {
+							@Override
+							public ConfigurableApplicationContext call() throws Exception {
+								return (ConfigurableApplicationContext) SpringApplication
+										.run(SampleWebStaticApplication.class);
+							}
+						});
+		context = future.get(30, TimeUnit.SECONDS);
+	}
+
+	@AfterClass
+	public static void stop() {
+		if (context != null) {
+			context.close();
+		}
+	}
+
+	@Test
+	public void testHome() throws Exception {
+		ResponseEntity<String> entity = getRestTemplate().getForEntity(
+				"http://localhost:8080", String.class);
+		assertEquals(HttpStatus.OK, entity.getStatusCode());
+		assertTrue("Wrong body (title doesn't match):\n" + entity.getBody(), entity
+				.getBody().contains("<title>Static"));
+	}
+
+	@Test
+	public void testCss() throws Exception {
+		ResponseEntity<String> entity = getRestTemplate().getForEntity(
+				"http://localhost:8080/resources/css/bootstrap.min.css", String.class);
+		assertEquals(HttpStatus.OK, entity.getStatusCode());
+		assertTrue("Wrong body:\n" + entity.getBody(), entity.getBody().contains("body"));
+		assertEquals("Wrong content type:\n" + entity.getHeaders().getContentType(),
+				MediaType.valueOf("text/css"), entity.getHeaders().getContentType());
+	}
+
+	private RestTemplate getRestTemplate() {
+		RestTemplate restTemplate = new RestTemplate();
+		restTemplate.setErrorHandler(new DefaultResponseErrorHandler() {
+			@Override
+			public void handleError(ClientHttpResponse response) throws IOException {
+			}
+		});
+		return restTemplate;
+
+	}
+
+}