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LUCENE-7327: fix rare test bug

This commit is contained in:
Mike McCandless 2016-06-10 10:17:34 -04:00
parent e418bd0eb3
commit a923d945b4
2 changed files with 9 additions and 3 deletions
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4
lucene/spatial3d/src/java/org/apache/lucene/spatial3d/Geo3DUtil.java
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@ -45,8 +45,8 @@ class Geo3DUtil {
private static final int BITS = 32;
private static final double MUL = (0x1L<<BITS)/(2*MAX_VALUE);
static final double DECODE = getNextSafeDouble(1/MUL);
private static final int MIN_ENCODED_VALUE = encodeValue(-MAX_VALUE);
private static final int MAX_ENCODED_VALUE = encodeValue(MAX_VALUE);
static final int MIN_ENCODED_VALUE = encodeValue(-MAX_VALUE);
static final int MAX_ENCODED_VALUE = encodeValue(MAX_VALUE);
public static int encodeValue(double x) {
if (x > MAX_VALUE) {

8
lucene/spatial3d/src/test/org/apache/lucene/spatial3d/TestGeo3DPoint.java
View File

@ -1207,13 +1207,19 @@ public class TestGeo3DPoint extends LuceneTestCase {
/**
* step through some integers, ensuring they decode to their expected double values.
* double values start at -90 and increase by LATITUDE_DECODE for each integer.
* double values start at -planetMax and increase by Geo3DUtil.DECODE for each integer.
* check edge cases within the double range and random doubles within the range too.
*/
public void testQuantization() throws Exception {
Random random = random();
for (int i = 0; i < 10000; i++) {
int encoded = random.nextInt();
if (encoded < Geo3DUtil.MIN_ENCODED_VALUE) {
continue;
}
if (encoded > Geo3DUtil.MAX_ENCODED_VALUE) {
continue;
}
double min = encoded * Geo3DUtil.DECODE;
double decoded = Geo3DUtil.decodeValueFloor(encoded);
// should exactly equal expected value