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ICU-4472 add new simpler test cases to illustrate the problem

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X-SVN-Rev: 17503
This commit is contained in:
Doug Felt 2005-04-25 22:39:30 +00:00
parent 9ce9eda382
commit 8fe398c368
1 changed files with 25 additions and 1 deletions
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24
icu4j/src/com/ibm/icu/dev/test/normalizer/NormalizerRegressionTests.java
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@ -16,7 +16,31 @@ public class NormalizerRegressionTests extends TestFmwk {
}
public void TestJB4472() {
// submitter's test case
String tamil = "\u0b87\u0ba8\u0bcd\u0ba4\u0bbf\u0baf\u0bbe";
logln("Normalized: " + Normalizer.isNormalized(tamil, Normalizer.NFC, 0));
// markus's test case
// the combining cedilla can't be applied to 'b', so this is in normalized form.
// but the isNormalized test identifies the cedilla as a 'maybe' and so tries
// to normalize the relevant substring ("b\u0327")and compare the result to the
// original. the original code was passing in the start and length of the
// substring (3, 5-3 = 2) but the called code was expecting start and limit.
// it subtracted the start again to get what it thought was the length, but
// ended up with -1. the loop was incrementing an index from 0 and testing
// against length, but 0 was never == -1 before it walked off the array end.
// a workaround in lieu of this patch is to catch the exception and always
// normalize.
// this should return true, since the string is normalized (and it should
// not throw an exception!)
String sample = "aaab\u0327";
logln("Normalized: " + Normalizer.isNormalized(sample, Normalizer.NFC, 0));
// this should return false, since the string is _not_ normalized (and it should
// not throw an exception!)
String sample2 = "aaac\u0327";
logln("Normalized: " + Normalizer.isNormalized(sample2, Normalizer.NFC, 0));
}
}