Massage MVC test a bit

* Use *Tests as classname
* Fixed broken test in suite where ID is not always "1"

spring-boot-samples/spring-boot-sample-web-ui/src/test/java/org/springframework/boot/sample/ui/MessageControllerWebTest.java → spring-boot-samples/spring-boot-sample-web-ui/src/test/java/org/springframework/boot/sample/ui/MessageControllerWebTests.java

 package org.springframework.boot.sample.ui;
 
+import java.util.regex.Pattern;
 
+import org.hamcrest.Description;
+import org.hamcrest.TypeSafeMatcher;
 import org.junit.Before;
 import org.junit.Test;
 import org.junit.runner.RunWith;
@@ -12,10 +15,12 @@ import org.springframework.test.web.servlet.MockMvc;
 import org.springframework.test.web.servlet.setup.MockMvcBuilders;
 import org.springframework.web.context.WebApplicationContext;
 
-import static org.hamcrest.Matchers.*;
-
-import static org.springframework.test.web.servlet.request.MockMvcRequestBuilders.*;
-import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.*;
+import static org.hamcrest.Matchers.containsString;
+import static org.springframework.test.web.servlet.request.MockMvcRequestBuilders.get;
+import static org.springframework.test.web.servlet.request.MockMvcRequestBuilders.post;
+import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.content;
+import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.header;
+import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.status;
 
 /**
  * A Basic Spring MVC Test for the Sample Controller"
@@ -25,7 +30,7 @@ import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.
 @RunWith(SpringJUnit4ClassRunner.class)
 @WebAppConfiguration
 @ContextConfiguration(classes = SampleWebUiApplication.class)
-public class MessageControllerWebTest {
+public class MessageControllerWebTests {
 	@Autowired
 	private WebApplicationContext wac;
 
@@ -38,18 +43,42 @@ public class MessageControllerWebTest {
 
 	@Test
 	public void testHome() throws Exception {
-		this.mockMvc
-			.perform(get("/"))
-			.andExpect(status().isOk())
-			.andExpect(content().string(containsString("<title>Messages")));
+		this.mockMvc.perform(get("/")).andExpect(status().isOk())
+				.andExpect(content().string(containsString("<title>Messages")));
 	}
-	
+
 	@Test
 	public void testCreate() throws Exception {
-		this.mockMvc
-			.perform(post("/").param("text", "FOO text").param("summary", "FOO"))
-			.andExpect(status().isMovedTemporarily())
-			.andExpect(header().string("location", "/1"));
+		this.mockMvc.perform(post("/").param("text", "FOO text").param("summary", "FOO"))
+				.andExpect(status().isMovedTemporarily())
+				.andExpect(header().string("location", RegexMatcher.matches("/[0-9]+")));
 	}
 
+	private static class RegexMatcher extends TypeSafeMatcher<String> {
+		private final String regex;
+
+		public RegexMatcher(String regex) {
+			this.regex = regex;
+		}
+
+		public static org.hamcrest.Matcher<java.lang.String> matches(String regex) {
+			return new RegexMatcher(regex);
+		}
+
+		@Override
+		public boolean matchesSafely(String item) {
+			return Pattern.compile(this.regex).matcher(item).find();
+		}
+
+		@Override
+		public void describeMismatchSafely(String item, Description mismatchDescription) {
+			mismatchDescription.appendText("was \"").appendText(item).appendText("\"");
+		}
+
+		@Override
+		public void describeTo(Description description) {
+			description.appendText("a string that matches regex: ")
+					.appendText(this.regex);
+		}
+	}
 }