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Added test cases corresponding to examples in the User Guide. 

git-svn-id: https://svn.apache.org/repos/asf/jakarta/commons/proper/math/trunk@141120 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Phil Steitz 2004-03-07 00:57:11 +00:00
parent 0c6b77b4eb
commit 7e6d5d5d54
1 changed files with 25 additions and 3 deletions
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28
src/test/org/apache/commons/math/stat/FrequencyTest.java
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@ -26,7 +26,7 @@ import junit.framework.TestSuite;
/**
* Test cases for the {@link Frequency} class.
*
* @version $Revision: 1.11 $ $Date: 2004/02/21 21:35:17 $
* @version $Revision: 1.12 $ $Date: 2004/03/07 00:57:11 $
*/
public final class FrequencyTest extends TestCase {
@ -69,10 +69,32 @@ public final class FrequencyTest extends TestCase {
assertEquals("zero cumulative frequency", 0, f.getCumFreq(0));
assertEquals("one cumulative frequency", 3, f.getCumFreq(1));
assertEquals("two cumulative frequency", 4, f.getCumFreq(2));
assertEquals("two cumulative frequency", 4, f.getCumFreq(5));
assertEquals("two cumulative frequency", 0, f.getCumFreq("foo"));
assertEquals("five cumulative frequency", 4, f.getCumFreq(5));
assertEquals("foo cumulative frequency", 0, f.getCumFreq("foo"));
f.clear();
assertEquals("total count",0,f.getSumFreq());
// userguide examples -------------------------------------------------------------------
f.addValue("one");
f.addValue("One");
f.addValue("oNe");
f.addValue("Z");
assertEquals("one cumulative frequency", 1 , f.getCount("one"));
assertEquals("Z cumulative pct", 0.5, f.getCumPct("Z"), tolerance);
assertEquals("z cumulative pct", 1.0, f.getCumPct("z"), tolerance);
assertEquals("Ot cumulative pct", 0.25, f.getCumPct("Ot"), tolerance);
f.clear();
f = null;
f = new Frequency(String.CASE_INSENSITIVE_ORDER);
f.addValue("one");
f.addValue("One");
f.addValue("oNe");
f.addValue("Z");
assertEquals("one count", 3 , f.getCount("one"));
assertEquals("Z cumulative pct -- case insensitive", 1 , f.getCumPct("Z"), tolerance);
assertEquals("z cumulative pct -- case insensitive", 1 , f.getCumPct("z"), tolerance);
}
/** test pcts */