custom error message

spring-security-rest/src/test/java/org/baeldung/web/FooLiveTest.java

@@ -0,0 +1,65 @@
+package org.baeldung.web;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertTrue;
+
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.springframework.http.HttpStatus;
+import org.springframework.test.context.ContextConfiguration;
+import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
+import org.springframework.test.context.support.AnnotationConfigContextLoader;
+
+import com.jayway.restassured.RestAssured;
+import com.jayway.restassured.authentication.FormAuthConfig;
+import com.jayway.restassured.response.Response;
+import com.jayway.restassured.specification.RequestSpecification;
+
+@RunWith(SpringJUnit4ClassRunner.class)
+@ContextConfiguration(classes = { TestConfig.class }, loader = AnnotationConfigContextLoader.class)
+public class FooLiveTest {
+    private static final String URL_PREFIX = "http://localhost:8080/spring-security-rest";
+    private FormAuthConfig formConfig = new FormAuthConfig(URL_PREFIX + "/login", "username", "password");
+
+    private RequestSpecification givenAuth() {
+        return RestAssured.given().auth().form("user", "userPass", formConfig);
+    }
+
+    @Test
+    public void whenMethodArgumentMismatch_thenBadRequest() {
+        final Response response = givenAuth().get(URL_PREFIX + "/api/foos/ccc");
+        final ApiError error = response.as(ApiError.class);
+        assertEquals(HttpStatus.BAD_REQUEST, error.getStatus());
+        assertEquals(1, error.getErrors().size());
+        assertTrue(error.getErrors().get(0).contains("should be of type"));
+
+    }
+
+    @Test
+    public void whenNoHandlerForHttpRequest_thenNotFound() {
+        final Response response = givenAuth().delete(URL_PREFIX + "/api/xx");
+        final ApiError error = response.as(ApiError.class);
+        assertEquals(HttpStatus.NOT_FOUND, error.getStatus());
+        assertEquals(1, error.getErrors().size());
+        assertTrue(error.getErrors().get(0).contains("No handler found"));
+    }
+
+    @Test
+    public void whenHttpRequestMethodNotSupported_thenMethodNotAllowed() {
+        final Response response = givenAuth().delete(URL_PREFIX + "/api/foos/1");
+        final ApiError error = response.as(ApiError.class);
+        assertEquals(HttpStatus.METHOD_NOT_ALLOWED, error.getStatus());
+        assertEquals(1, error.getErrors().size());
+        assertTrue(error.getErrors().get(0).contains("Supported methods are"));
+    }
+
+    @Test
+    public void whenSendInvalidHttpMediaType_thenUnsupportedMediaType() {
+        final Response response = givenAuth().body("").post(URL_PREFIX + "/api/foos");
+        final ApiError error = response.as(ApiError.class);
+        assertEquals(HttpStatus.UNSUPPORTED_MEDIA_TYPE, error.getStatus());
+        assertEquals(1, error.getErrors().size());
+        assertTrue(error.getErrors().get(0).contains("media type is not supported"));
+    }
+
+}

spring-security-rest/src/test/java/org/baeldung/web/TestConfig.java

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+package org.baeldung.web;
+
+import org.springframework.context.annotation.ComponentScan;
+import org.springframework.context.annotation.Configuration;
+
+@Configuration
+@ComponentScan({ "org.baeldung.web" })
+public class TestConfig {
+
+
+}