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Add tests to verify InvalidMatrixException is thrown by inverse() for singular or non-square matrices. 

git-svn-id: https://svn.apache.org/repos/asf/jakarta/commons/proper/math/trunk@141152 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Phil Steitz 2004-04-03 22:19:24 +00:00
parent 70b35ebdcc
commit b465bb15ef
1 changed files with 19 additions and 1 deletions
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20
src/test/org/apache/commons/math/linear/RealMatrixImplTest.java
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@ -22,7 +22,7 @@ import junit.framework.TestSuite;
/**
* Test cases for the {@link RealMatrixImpl} class.
*
* @version $Revision: 1.11 $ $Date: 2004/02/21 21:35:17 $
* @version $Revision: 1.12 $ $Date: 2004/04/03 22:19:24 $
*/
public final class RealMatrixImplTest extends TestCase {
@ -200,6 +200,24 @@ public final class RealMatrixImplTest extends TestCase {
RealMatrix mInv = new RealMatrixImpl(testDataInv);
assertClose("inverse",mInv,m.inverse(),normTolerance);
assertClose("inverse^2",m,m.inverse().inverse(),10E-12);
// Not square
m = new RealMatrixImpl(testData2);
try {
m.inverse();
fail("Expecting InvalidMatrixException");
} catch (InvalidMatrixException ex) {
// expected
}
// Singular
m = new RealMatrixImpl(singular);
try {
m.inverse();
fail("Expecting InvalidMatrixException");
} catch (InvalidMatrixException ex) {
// expected
}
}
/** test solve */