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LUCENE-6440: Show LuceneTestCase LiveIndexWriterConfig changes with deltas 

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/trunk@1674912 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Robert Muir 2015-04-20 15:03:00 +00:00
parent 0bc9c7821d
commit c617356a29
1 changed files with 25 additions and 1 deletions
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26
lucene/test-framework/src/java/org/apache/lucene/util/LuceneTestCase.java
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@ -1111,6 +1111,8 @@ public abstract class LuceneTestCase extends Assert {
public static void maybeChangeLiveIndexWriterConfig(Random r, LiveIndexWriterConfig c) {
boolean didChange = false;
String previous = c.toString();
if (rarely(r)) {
// change flush parameters:
// this is complicated because the api requires you "invoke setters in a magical order!"
@ -1223,7 +1225,29 @@ public abstract class LuceneTestCase extends Assert {
didChange = true;
}
if (VERBOSE && didChange) {
System.out.println("NOTE: LuceneTestCase: randomly changed IWC's live settings to:\n" + c);
String current = c.toString();
String previousLines[] = previous.split("\n");
String currentLines[] = current.split("\n");
StringBuilder diff = new StringBuilder();
// this should always be the case, diff each line
if (previousLines.length == currentLines.length) {
for (int i = 0; i < previousLines.length; i++) {
if (!previousLines[i].equals(currentLines[i])) {
diff.append("- " + previousLines[i] + "\n");
diff.append("+ " + currentLines[i] + "\n");
}
}
} else {
// but just in case of something ridiculous...
diff.append(current.toString());
}
// its possible to be empty, if we "change" a value to what it had before.
if (diff.length() > 0) {
System.out.println("NOTE: LuceneTestCase: randomly changed IWC's live settings:");
System.out.println(diff);
}
}
}