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ICU-4423 String Tokenizer countTokens() test added

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X-SVN-Rev: 18498
This commit is contained in:
Andy Heninger 2005-09-06 21:23:50 +00:00
parent 209db19054
commit e21fcb7e45
1 changed files with 53 additions and 0 deletions
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53
icu4j/src/com/ibm/icu/dev/test/util/StringTokenizerTest.java
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@ -420,6 +420,59 @@ public final class StringTokenizerTest extends TestFmwk
}
}
public void TestBug4423()
{
// bug 4423: a bad interaction between countTokens() and hasMoreTokens().
//
String s1 = "This is a test";
StringTokenizer tzr = new StringTokenizer(s1);
int tokenCount = 0;
int t = tzr.countTokens();
if (t!= 4) {
errln("tzr.countTokens() returned " + t + ". Expected 4");
}
while (tzr.hasMoreTokens()) {
String tok = tzr.nextToken();
if (tok.length() == 0) {
errln("token with length == 0");
}
tokenCount++;
}
if (tokenCount != 4) {
errln("Incorrect number of tokens found = " + tokenCount);
}
// Precomputed tokens arrays can grow. Check for edge cases around
// boundary where growth is forced. Array grows in increments of 100 tokens.
String s2 = "";
for (int i=1; i<250; i++) {
s2 = s2 + " " + i;
StringTokenizer tzb = new StringTokenizer(s2);
int t2 = tzb.countTokens();
if (t2 != i) {
errln("tzb.countTokens() returned " + t + ". Expected " + i);
break;
}
int j = 0;
while (tzb.hasMoreTokens()) {
String tok = tzb.nextToken();
j++;
if (tok.equals(Integer.toString(j)) == false) {
errln("Wrong token string. Expected \"" + j + "\", got \""
+ tok + "\".");
break;
}
}
if (j != i) {
errln("Wrong number of tokens. Expected " + i + ". Got " + j
+ ".");
break;
}
}
}
public static void main(String[] arg)
{
try