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// Copyright Yahoo. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.search.grouping.vespa;
import com.yahoo.search.grouping.Continuation;
import org.junit.jupiter.api.Test;
import static org.junit.jupiter.api.Assertions.*;
/**
* @author Simon Thoresen Hult
*/
public class GroupingTransformTestCase {
private static final int REQUEST_ID = 0;
@Test
void requireThatLabelCanBeSet() {
GroupingTransform transform = newTransform();
transform.putLabel(0, 1, "foo", "my_type");
assertEquals("foo", transform.getLabel(1));
}
@Test
void requireThatLabelCanNotBeReplaced() {
GroupingTransform transform = newTransform();
transform.putLabel(0, 1, "foo", "my_type");
try {
transform.putLabel(0, 1, "bar", "my_type");
fail();
} catch (IllegalStateException e) {
assertEquals("Can not set label of my_type 1 to 'bar' because it is already set to 'foo'.",
e.getMessage());
}
}
@Test
void requireThatLabelIsUniqueAmongSiblings() {
GroupingTransform transform = newTransform();
transform.putLabel(0, 1, "foo", "my_type");
try {
transform.putLabel(0, 2, "foo", "my_type");
fail();
} catch (UnsupportedOperationException e) {
assertEquals("Can not use my_type label 'foo' for multiple siblings.",
e.getMessage());
}
}
@Test
void requireThatMaxDefaultsToZero() {
GroupingTransform transform = newTransform();
assertEquals(0, transform.getMax(6));
assertEquals(0, transform.getMax(9));
}
@Test
void requireThatMaxCanBeSet() {
GroupingTransform transform = newTransform();
transform.putMax(0, 69, "my_type");
assertEquals(69, transform.getMax(0));
}
@Test
void requireThatMaxCanNotBeReplaced() {
GroupingTransform transform = newTransform();
transform.putMax(0, 6, "my_type");
try {
transform.putMax(0, 9, "my_type");
fail();
} catch (IllegalStateException e) {
assertEquals("Can not set max of my_type 0 to 9 because it is already set to 6.",
e.getMessage());
}
assertEquals(6, transform.getMax(0));
}
@Test
void requireThatOffsetDefaultsToZero() {
GroupingTransform transform = newTransform();
assertEquals(0, transform.getOffset(6));
assertEquals(0, transform.getOffset(9));
}
@Test
void requireThatOffsetContinuationsCanBeAdded() {
GroupingTransform transform = newTransform();
transform.addContinuation(newStableOffset(newResultId(), 6, 9));
assertEquals(9, transform.getOffset(6));
}
@Test
void requireThatOffsetByIdCanBeReplaced() {
GroupingTransform transform = newTransform();
ResultId id = newResultId(6, 9);
transform.addContinuation(newStableOffset(id, 0, 6));
assertEquals(6, transform.getOffset(id));
transform.addContinuation(newStableOffset(id, 0, 69));
assertEquals(69, transform.getOffset(id));
transform.addContinuation(newStableOffset(id, 0, 9));
assertEquals(9, transform.getOffset(id));
transform.addContinuation(newStableOffset(id, 0, 96));
assertEquals(96, transform.getOffset(id));
}
@Test
void requireThatOffsetByTagEqualsHighestSibling() {
GroupingTransform transform = newTransform();
transform.addContinuation(newStableOffset(newResultId(1), 69, 6));
assertEquals(6, transform.getOffset(69));
transform.addContinuation(newStableOffset(newResultId(2), 69, 69));
assertEquals(69, transform.getOffset(69));
transform.addContinuation(newStableOffset(newResultId(3), 69, 9));
assertEquals(69, transform.getOffset(69));
transform.addContinuation(newStableOffset(newResultId(4), 69, 96));
assertEquals(96, transform.getOffset(69));
}
@Test
void requireThatOffsetContinuationsCanBeReplaced() {
GroupingTransform transform = newTransform();
ResultId id = newResultId(6, 9);
transform.addContinuation(newStableOffset(id, 1, 1));
assertEquals(1, transform.getOffset(1));
assertEquals(1, transform.getOffset(id));
assertTrue(transform.isStable(id));
transform.addContinuation(newUnstableOffset(id, 1, 2));
assertEquals(2, transform.getOffset(1));
assertEquals(2, transform.getOffset(id));
assertFalse(transform.isStable(id));
transform.addContinuation(newStableOffset(id, 1, 3));
assertEquals(3, transform.getOffset(1));
assertEquals(3, transform.getOffset(id));
assertTrue(transform.isStable(id));
}
@Test
void requireThatUnstableOffsetsAreTracked() {
GroupingTransform transform = newTransform();
ResultId stableId = newResultId(6);
transform.addContinuation(newStableOffset(stableId, 1, 1));
assertTrue(transform.isStable(stableId));
ResultId unstableId = newResultId(9);
transform.addContinuation(newUnstableOffset(unstableId, 2, 3));
assertTrue(transform.isStable(stableId));
assertFalse(transform.isStable(unstableId));
}
@Test
void requireThatCompositeContinuationsAreDecomposed() {
GroupingTransform transform = newTransform();
transform.addContinuation(new CompositeContinuation()
.add(newStableOffset(newResultId(), 6, 9))
.add(newStableOffset(newResultId(), 9, 6)));
assertEquals(9, transform.getOffset(6));
assertEquals(6, transform.getOffset(9));
}
@Test
void requireThatUnsupportedContinuationsCanNotBeAdded() {
GroupingTransform transform = newTransform();
try {
transform.addContinuation(new Continuation() {
@Override
public Continuation copy() {
return null;
}
});
fail();
} catch (UnsupportedOperationException e) {
}
}
@Test
void requireThatUnrelatedContinuationsAreIgnored() {
GroupingTransform transform = new GroupingTransform(REQUEST_ID);
ResultId id = ResultId.valueOf(REQUEST_ID + 1, 1);
transform.addContinuation(new OffsetContinuation(id, 2, 3, OffsetContinuation.FLAG_UNSTABLE));
assertEquals(0, transform.getOffset(2));
assertEquals(0, transform.getOffset(id));
assertTrue(transform.isStable(id));
}
@Test
void requireThatToStringIsVerbose() {
GroupingTransform transform = new GroupingTransform(REQUEST_ID);
transform.putLabel(1, 1, "label1", "type1");
transform.putLabel(2, 2, "label2", "type2");
transform.addContinuation(newStableOffset(ResultId.valueOf(REQUEST_ID), 3, 3));
transform.addContinuation(newStableOffset(ResultId.valueOf(REQUEST_ID), 4, 4));
transform.putMax(5, 5, "type5");
transform.putMax(6, 6, "type6");
assertEquals("groupingTransform {\n" +
"\tlabels {\n" +
"\t\t1 : label1\n" +
"\t\t2 : label2\n" +
"\t}\n" +
"\toffsets {\n" +
"\t\t3 : 3\n" +
"\t\t4 : 4\n" +
"\t}\n" +
"\tmaxes {\n" +
"\t\t5 : 5\n" +
"\t\t6 : 6\n" +
"\t}\n" +
"}", transform.toString());
}
private static GroupingTransform newTransform() {
return new GroupingTransform(REQUEST_ID);
}
private static ResultId newResultId(int... indexes) {
ResultId id = ResultId.valueOf(REQUEST_ID);
for (int i : indexes) {
id = id.newChildId(i);
}
return id;
}
private static OffsetContinuation newStableOffset(ResultId resultId, int tag, int offset) {
return new OffsetContinuation(resultId, tag, offset, 0);
}
private static OffsetContinuation newUnstableOffset(ResultId resultId, int tag, int offset) {
return new OffsetContinuation(resultId, tag, offset, OffsetContinuation.FLAG_UNSTABLE);
}
}
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