Document and test UUIDConventer

org.springframework.integration/src/test/java/org/springframework/integration/util/UUIDConverterTests.java

@@ -0,0 +1,70 @@
+package org.springframework.integration.util;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertNotNull;
+import static org.junit.Assert.assertNull;
+import static org.junit.Assert.assertTrue;
+import static org.junit.Assert.fail;
+
+import java.util.Date;
+import java.util.UUID;
+
+import org.junit.Test;
+
+/**
+ * @author Dave Syer
+ *
+ */
+public class UUIDConverterTests {
+
+	@Test
+	public void testConvertNull() throws Exception {
+		assertNull(UUIDConverter.getUUID(null));
+	}
+
+	@Test
+	public void testConvertUUID() throws Exception {
+		UUID uuid = UUID.randomUUID();
+		assertEquals(uuid, UUIDConverter.getUUID(uuid));
+	}
+
+	@Test
+	public void testConvertUUIDString() throws Exception {
+		UUID uuid = UUID.randomUUID();
+		assertEquals(uuid, UUIDConverter.getUUID(uuid.toString()));
+	}
+
+	@Test
+	public void testConvertAlmostUUIDString() throws Exception {
+		String name = "1-2-3-4";
+		try {
+			UUID.fromString(name);
+			fail();
+		} catch (IllegalArgumentException e) {
+			String message = e.getMessage();
+			assertTrue("Wrong message: "+message, message.contains("Invalid UUID string"));
+		}
+		assertNotNull(UUIDConverter.getUUID(name));
+	}
+
+	@Test
+	public void testConvertRandomString() throws Exception {
+		assertNotNull(UUIDConverter.getUUID("foo"));
+	}
+
+	@Test
+	public void testConvertPrimitive() throws Exception {
+		assertNotNull(UUIDConverter.getUUID(1L));
+	}
+
+	@Test
+	public void testConvertSerializable() throws Exception {
+		assertNotNull(UUIDConverter.getUUID(new Date()));
+	}
+
+	@Test(expected=IllegalArgumentException.class)
+	public void testConvertNonSerializable() throws Exception {
+		assertNotNull(UUIDConverter.getUUID(new Object()));
+	}
+
+}