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Added tests for printStackTrace(), serialization. 

git-svn-id: https://svn.apache.org/repos/asf/jakarta/commons/proper/math/trunk@141373 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Phil Steitz 2004-07-10 22:23:14 +00:00
parent 2ac0eb8cd7
commit 9ba5a237d7
1 changed files with 54 additions and 1 deletions
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55
src/test/org/apache/commons/math/MathExceptionTest.java
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@ -18,8 +18,12 @@ package org.apache.commons.math;
import junit.framework.TestCase;
import java.io.ByteArrayOutputStream;
import java.io.PrintStream;
import java.io.PrintWriter;
/**
* @version $Revision: 1.7 $ $Date: 2004/02/21 21:35:16 $
* @version $Revision: 1.8 $ $Date: 2004/07/10 22:23:14 $
*/
public class MathExceptionTest extends TestCase {
/**
@ -62,4 +66,53 @@ public class MathExceptionTest extends TestCase {
MathException ex = new MathException(cause);
assertEquals(cause, ex.getCause());
}
/**
* Tests the printStackTrace() operation.
*/
public void testPrintStackTrace() {
String outMsg = "outer message";
String inMsg = "inner message";
MathException cause = new MathConfigurationException(inMsg);
MathException ex = new MathException(outMsg, cause);
ByteArrayOutputStream baos = new ByteArrayOutputStream();
PrintStream ps = new PrintStream(baos);
ex.printStackTrace(ps);
String stack = baos.toString();
String outerMsg = "org.apache.commons.math.MathException: outer message";
String innerMsg = "Caused by: " +
"org.apache.commons.math.MathConfigurationException: inner message";
assertTrue(stack.startsWith(outerMsg));
assertTrue(stack.indexOf(innerMsg) > 0);
PrintWriter pw = new PrintWriter(ps, true);
ex.printStackTrace(pw);
stack = baos.toString();
assertTrue(stack.startsWith(outerMsg));
assertTrue(stack.indexOf(innerMsg) > 0);
}
/**
* Test serialization
*/
public void testSerialization() {
String outMsg = "outer message";
String inMsg = "inner message";
MathException cause = new MathConfigurationException(inMsg);
MathException ex = new MathException(outMsg, cause);
MathException image = (MathException) TestUtils.serializeAndRecover(ex);
ByteArrayOutputStream baos = new ByteArrayOutputStream();
PrintStream ps = new PrintStream(baos);
PrintWriter pw = new PrintWriter(ps, true);
ex.printStackTrace(ps);
String stack = baos.toString();
ByteArrayOutputStream baos2 = new ByteArrayOutputStream();
PrintStream ps2 = new PrintStream(baos2);
PrintWriter pw2 = new PrintWriter(ps2, true);
image.printStackTrace(ps2);
String stack2 = baos2.toString();
assertEquals(stack, stack2);
}
}