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Test edge case in SetOperations when shapes are different.

This commit is contained in:
aherbert 2020-02-18 13:56:59 +00:00
parent 4ecffb5fee
commit 0f78a9c9e8
1 changed files with 20 additions and 0 deletions
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20
src/test/java/org/apache/commons/collections4/bloomfilter/SetOperationsTest.java
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@ -24,6 +24,7 @@ import org.apache.commons.collections4.bloomfilter.hasher.HashFunctionIdentity;
import org.apache.commons.collections4.bloomfilter.hasher.Hasher;
import org.apache.commons.collections4.bloomfilter.hasher.Shape;
import org.apache.commons.collections4.bloomfilter.hasher.StaticHasher;
import org.junit.Assert;
import org.junit.Test;
/**
@ -61,6 +62,25 @@ public class SetOperationsTest {
private final Shape shape = new Shape(testFunction, 3, 72, 17);
@Test
public void testDifferentShapesThrows() {
List<Integer> lst = Arrays.asList(1, 2);
Hasher hasher = new StaticHasher(lst.iterator(), shape);
BloomFilter filter1 = new HasherBloomFilter(hasher, shape);
final Shape shape2 = new Shape(testFunction, 3, 72, 18);
List<Integer> lst2 = Arrays.asList(2, 3);
Hasher hasher2 = new StaticHasher(lst2.iterator(), shape2);
BloomFilter filter2 = new HasherBloomFilter(hasher2, shape2);
try {
SetOperations.cosineDistance(filter1, filter2);
Assert.fail("Expected an IllegalArgumentException");
} catch (IllegalArgumentException expected) {
// Ignore
}
}
/**
* Tests that the Cosine similarity is correctly calculated.
*/