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Added more tests for bad input data. 

git-svn-id: https://svn.apache.org/repos/asf/jakarta/commons/proper/math/trunk@141335 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Phil Steitz 2004-06-26 22:09:07 +00:00
parent 2e54805bf5
commit 51ca427022
1 changed files with 42 additions and 4 deletions
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46
src/test/org/apache/commons/math/stat/inference/ChiSquareTestTest.java
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@ -22,7 +22,7 @@ import junit.framework.TestSuite;
/**
* Test cases for the ChiSquareTestImpl class.
*
* @version $Revision: 1.2 $ $Date: 2004/06/07 20:30:16 $
* @version $Revision: 1.3 $ $Date: 2004/06/26 22:09:07 $
*/
public final class ChiSquareTestTest extends TestCase {
@ -66,7 +66,7 @@ public final class ChiSquareTestTest extends TestCase {
fail("alpha out of range, IllegalArgumentException expected");
} catch (IllegalArgumentException ex) {
// expected
}
}
long[] tooShortObs = { 0 };
double[] tooShortEx = { 1 };
@ -77,6 +77,7 @@ public final class ChiSquareTestTest extends TestCase {
// expected
}
// unmatched arrays
long[] unMatchedObs = { 0, 1, 2, 3 };
double[] unMatchedEx = { 1, 1, 2 };
try {
@ -85,13 +86,26 @@ public final class ChiSquareTestTest extends TestCase {
} catch (IllegalArgumentException ex) {
// expected
}
// 0 expected count
expected[0] = 0;
try {
testStatistic.chiSquareTest(expected, observed, .01);
fail("bad expected count, IllegalArgumentException expected");
} catch (IllegalArgumentException ex) {
// expected
}
}
// negative observed count
expected[0] = 1;
observed[0] = -1;
try {
testStatistic.chiSquareTest(expected, observed, .01);
fail("bad expected count, IllegalArgumentException expected");
} catch (IllegalArgumentException ex) {
// expected
}
}
public void testChiSquareIndependence() throws Exception {
@ -125,7 +139,31 @@ public final class ChiSquareTestTest extends TestCase {
fail("Expecting IllegalArgumentException");
} catch (IllegalArgumentException ex) {
// expected
}
}
long[][] counts5 = {{40}, {40}, {30}, {10}};
try {
testStatistic.chiSquare(counts5);
fail("Expecting IllegalArgumentException");
} catch (IllegalArgumentException ex) {
// expected
}
// negative counts
long[][] counts6 = {{10, -2}, {30, 40}, {60, 90} };
try {
testStatistic.chiSquare(counts6);
fail("Expecting IllegalArgumentException");
} catch (IllegalArgumentException ex) {
// expected
}
// bad alpha
try {
testStatistic.chiSquareTest(counts, 0);
fail("Expecting IllegalArgumentException");
} catch (IllegalArgumentException ex) {
// expected
}
}
public void testChiSquareLargeTestStatistic() throws Exception {