Java tutorial
/** * The contents of this file are subject to the Mozilla Public License Version 1.1 * (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.mozilla.org/MPL/ * Software distributed under the License is distributed on an "AS IS" basis, * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License for the * specific language governing rights and limitations under the License. * * The Original Code is "MinLLPWriterTest.java". Description: * "Unit test class for ca.uhn.hl7v2.llp.tests.MinLLPWriter" * * The Initial Developer of the Original Code is Leslie Mann. Copyright (C) * 2002. All Rights Reserved. * * Contributor(s): ______________________________________. * * Alternatively, the contents of this file may be used under the terms of the * GNU General Public License (the GPL), in which case the provisions of the GPL are * applicable instead of those above. If you wish to allow use of your version of this * file only under the terms of the GPL and not to allow others to use your version * of this file under the MPL, indicate your decision by deleting the provisions above * and replace them with the notice and other provisions required by the GPL License. * If you do not delete the provisions above, a recipient may use your version of * this file under either the MPL or the GPL. * */ package ca.uhn.hl7v2.llp.tests; import static org.junit.Assert.assertEquals; import static org.junit.Assert.assertNotNull; import static org.junit.Assert.assertTrue; import static org.junit.Assert.fail; import static org.ops4j.pax.exam.CoreOptions.equinox; import static org.ops4j.pax.exam.CoreOptions.felix; import static org.ops4j.pax.exam.CoreOptions.frameworks; import static org.ops4j.pax.exam.CoreOptions.knopflerfish; import static org.ops4j.pax.exam.CoreOptions.mavenBundle; import static org.ops4j.pax.exam.CoreOptions.options; import static org.ops4j.pax.exam.CoreOptions.systemProperty; import static org.ops4j.pax.exam.CoreOptions.wrappedBundle; import static org.ops4j.pax.exam.container.def.PaxRunnerOptions.logProfile; import java.io.ByteArrayOutputStream; import java.io.IOException; import java.util.ArrayList; import org.apache.commons.logging.Log; import org.apache.commons.logging.LogFactory; import org.junit.After; import org.junit.Before; import org.junit.Test; import org.junit.runner.RunWith; import org.ops4j.pax.exam.Inject; import org.ops4j.pax.exam.Option; import org.ops4j.pax.exam.junit.Configuration; import org.ops4j.pax.exam.junit.JUnit4TestRunner; import org.osgi.framework.BundleContext; import ca.uhn.hl7v2.llp.LLPException; import ca.uhn.hl7v2.llp.MinLLPWriter; import ca.uhn.hl7v2.util.tests.LibraryEntry; import ca.uhn.hl7v2.util.tests.MessageLibrary; /** * Unit test class for ca.uhn.hl7v2.llp.tests.MinLLPWriter * * @author Leslie Mann * @author Niranjan Sharma niranjan.sharma@med.ge.com This testcase has been * extended for OSGI environment using Junit4 and PAX-Exam. */ @RunWith(JUnit4TestRunner.class) public class MinLLPWriterTest { // you get that because you "installed" a log profile in configuration. public Log logger = LogFactory.getLog(MinLLPWriterTest.class); @Inject BundleContext bundleContext; @Configuration public static Option[] configure() { return options(frameworks(equinox(), felix(), knopflerfish()), logProfile(), systemProperty("org.ops4j.pax.logging.DefaultServiceLog.level").value("INFO"), mavenBundle().groupId("org.ops4j.pax.url").artifactId("pax-url-mvn").version("0.4.0"), wrappedBundle( mavenBundle().groupId("org.ops4j.base").artifactId("ops4j-base-util").version("0.5.3")), mavenBundle().groupId("ca.uhn.hapi").artifactId("hapi-osgi-base").version("1.0-beta1") // , vmOption("-Xrunjdwp:transport=dt_socket,server=y,suspend=y,address=5006" ) ); } // NB: Per the minimal lower layer protocol. // character indicating the termination of an HL7 message private final char END_MESSAGE = '\u001c'; // character indicating the start of an HL7 message private final char START_MESSAGE = '\u000b'; // the final character of a message: a carriage return private final char LAST_CHARACTER = 13; private String message; private MinLLPWriter minLLPWriter; private ByteArrayOutputStream outputStream; MessageLibrary msgLib; @Before public void BeforeTheTest() { logger.info("*****************************BeforeTheTest******************************************"); message = "This is a test HL7 message"; minLLPWriter = new MinLLPWriter(); outputStream = new ByteArrayOutputStream(); // only want to setup once if (msgLib == null) { msgLib = new MessageLibrary("ca/uhn/hl7v2/util/tests/messages.txt", "VB"); } } @After public void AfterTheTest() { logger.info("*****************************AfterTheTest******************************************"); message = null; minLLPWriter = null; outputStream = null; msgLib = null; } /* * ********************************************************* Test Cases * ********************************************************* */ @Test public void TestCtx() { System.out.println( "*****************************Bundle Context is Good******************************************"); assertNotNull("Bundle Context is Null", bundleContext); } /** * Test default constructor */ @Test public void testConstructor() { assertNotNull("Should have a valid MinLLPWriter object", minLLPWriter); } /** * Test constructor with output stream */ @Test public void testConstructorWithOutputStream() throws IOException { minLLPWriter = new MinLLPWriter(outputStream); assertNotNull("Should have a valid MinLLPWriter object", minLLPWriter); } /** * Ensure constructor validates inputs. Pass a null outputStream */ @Test public void testConstructorWithNullOutputStream() { ByteArrayOutputStream nullOutputStream = null; try { minLLPWriter = new MinLLPWriter(nullOutputStream); fail("Should not be able to create a MinLLPWriter with a null input stream"); } catch (IOException ioe) { } catch (NullPointerException e) { } } /** * Ensure setOutputStream validates inputs. Pass a null outputStream */ @Test public void testSetNullOutputStream() { ByteArrayOutputStream nullOutputStream = null; try { minLLPWriter.setOutputStream(nullOutputStream); fail("Should not be able to set a null output stream"); } catch (IOException ioe) { } catch (NullPointerException e) { } } /** * Attempt to write a message without calling - <code>setOutputStream</code> */ @Test public void testWriteMessageWithoutOutputStream() throws LLPException { try { minLLPWriter.writeMessage(message); fail("Writer should be initialized before use"); } catch (IOException ioe) { } catch (NullPointerException e) { } } /** * Test writeMessage with MessageLibrary contents */ @Test public void testWriteLibraryMessages() throws IOException, LLPException { minLLPWriter.setOutputStream(outputStream); int mismatch = 0; for (int i = 0; i < msgLib.size(); i++) { String msg = ((LibraryEntry) msgLib.get(i)).messageString(); minLLPWriter.writeMessage(msg); String llpMessage = outputStream.toString(); outputStream.reset(); // minLLPWriter adds minimum lower layer protocol characters if (!(START_MESSAGE + msg + END_MESSAGE + LAST_CHARACTER).equals(llpMessage)) { mismatch++; } } assertEquals("HL7 message should equal oded message", 0, mismatch); } /** * Testing writeMessage with various messages. */ @Test public void testWriteMessages() { class TestSpec { String writeMessage; String recvMessage; Object outcome; TestSpec(String message, Object outcome) { if (message != null) this.writeMessage = message; else this.writeMessage = null; this.outcome = outcome; } public String toString() { return "[" + (writeMessage != null ? writeMessage.toString() : "null") + ":" + outcome + "]"; } public boolean executeTest() { try { ByteArrayOutputStream outputStream = new ByteArrayOutputStream(); MinLLPWriter minLLPWriter = new MinLLPWriter(outputStream); minLLPWriter.writeMessage(writeMessage); return outputStream.toString().equals(outcome); } catch (Exception e) { return (e.getClass().equals(outcome)); } } }// inner class TestSpec[] tests = { new TestSpec(null, NullPointerException.class), new TestSpec("", START_MESSAGE + "" + END_MESSAGE + LAST_CHARACTER), new TestSpec(message, START_MESSAGE + message + END_MESSAGE + LAST_CHARACTER), }; ArrayList failedTests = new ArrayList(); for (int i = 0; i < tests.length; i++) { if (!tests[i].executeTest()) failedTests.add(tests[i]); } assertEquals("readMessages failures: " + failedTests, 0, failedTests.size()); } /** * Test closing writer with as if private access */ @Test public void testClosePrivateWriter() { try { minLLPWriter = new MinLLPWriter(outputStream); minLLPWriter.close(); } catch (IOException ioe) { fail("Problem setting up test conditions"); } try { minLLPWriter.writeMessage(message); fail("Output stream should be closed"); } catch (IOException ioe) { } catch (LLPException llpe) { } } @Test public void testWithSpecifiedCharset() throws Exception { String test = "foo"; String charset = "UTF-16"; // makes "foo" look like "???" with default // charset ByteArrayOutputStream out = new ByteArrayOutputStream(); MinLLPWriter writer = new MinLLPWriter(out); writer.writeMessage(test, charset); assertTrue(out.toString(charset).indexOf(test) >= 0); } @Test public void testWithCharsetProperty() throws Exception { String test = "foo"; String charset = "UTF-16"; // makes "foo" look like "???" with default // charset String before = System.getProperty(MinLLPWriter.CHARSET_KEY); System.setProperty(MinLLPWriter.CHARSET_KEY, charset); ByteArrayOutputStream out = new ByteArrayOutputStream(); MinLLPWriter writer = new MinLLPWriter(out); writer.writeMessage(test); assertTrue(out.toString(charset).indexOf(test) >= 0); if (before != null) { System.setProperty(MinLLPWriter.CHARSET_KEY, before); } } }