INT-1564 added exception translation logic to TwitterOperationException for better display to the end user, added tests

spring-integration-twitter/src/test/java/org/springframework/integration/twitter/core/TwitterOperationExceptionTests.java

@@ -0,0 +1,80 @@
+/*
+ * Copyright 2002-2010 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 org.springframework.integration.twitter.core;
+
+import static junit.framework.Assert.assertEquals;
+import static junit.framework.Assert.assertFalse;
+import static junit.framework.Assert.assertTrue;
+import static junit.framework.Assert.fail;
+
+import org.junit.Test;
+import org.springframework.util.StringUtils;
+
+import twitter4j.TwitterException;
+
+/**
+ * @author Oleg Zhurakousky
+ * 
+ */
+public class TwitterOperationExceptionTests {
+
+	@Test
+	public void test401(){
+		// will result in exception since a,b,c,d are invalid credentials
+		Twitter4jTemplate template = new Twitter4jTemplate("a", "b", "c", "d");
+		try {
+			template.getProfileId();
+			fail();
+		} catch (Exception e) {
+			assertTrue(e instanceof TwitterOperationException);
+			assertEquals(401, ((TwitterOperationException)e).getTwitterStatusCode());
+			assertTrue(e.getMessage().contains("401:Authentication credentials were missing or incorrect"));
+			System.out.println(e.getMessage());
+		}
+	}
+	@Test
+	public void testWithNull(){
+		try {
+			throw new TwitterOperationException();
+		} catch (Exception e) {
+			TwitterOperationException tex = (TwitterOperationException) e;
+			assertFalse(StringUtils.hasText(tex.getMessage()));
+			assertEquals(-1, tex.getTwitterStatusCode());
+		}
+	}
+	@Test
+	public void testWithTwitterException(){
+		try {
+			throw new TwitterOperationException(new TwitterException("foo"));
+		} catch (Exception e) {
+			TwitterOperationException tex = (TwitterOperationException) e;
+			assertTrue(StringUtils.hasText(tex.getMessage()));
+			assertTrue(tex.getMessage().contains("foo"));
+			assertEquals(-1, tex.getTwitterStatusCode());
+		}
+	}
+	@Test
+	public void testWithDescription(){
+		try {
+			throw new TwitterOperationException("foo");
+		} catch (Exception e) {
+			TwitterOperationException tex = (TwitterOperationException) e;
+			assertTrue(StringUtils.hasText(tex.getMessage()));
+			assertTrue(tex.getMessage().contains("foo"));
+			assertEquals(-1, tex.getTwitterStatusCode());
+		}
+	}
+}