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test: add ArrayOfStrings Sketch C++ compatibility cases #729

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test: add ArrayOfStrings Sketch C++ compatibility cases #729

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114 changes: 114 additions & 0 deletions src/test/java/org/apache/datasketches/tuple/strings/AosSketchCrossLanguageTest.java
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Original file line number Diff line number Diff line change
Expand Up @@ -19,15 +19,25 @@

package org.apache.datasketches.tuple.strings;

import static org.apache.datasketches.common.TestUtil.CHECK_CPP_FILES;
import static org.apache.datasketches.common.TestUtil.GENERATE_JAVA_FILES;
import static org.apache.datasketches.common.TestUtil.cppPath;
import static org.apache.datasketches.common.TestUtil.javaPath;
import static org.testng.Assert.assertEquals;
import static org.testng.Assert.assertFalse;
import static org.testng.Assert.assertTrue;

import java.lang.foreign.MemorySegment;
import java.io.IOException;
import java.nio.file.Files;
import java.util.Arrays;
import java.util.HashSet;
import java.util.List;
import java.util.Set;

import org.apache.datasketches.common.ResizeFactor;
import org.apache.datasketches.tuple.TupleSketch;
import org.apache.datasketches.tuple.TupleSketchIterator;
import org.testng.annotations.Test;

/**
Expand Down Expand Up @@ -109,4 +119,108 @@ public void generateBinariesForCompatibilityTestingEmptyStrings() throws IOExcep

Files.newOutputStream(javaPath.resolve("aos_empty_strings_java.sk")).write(sk.compact().toByteArray());
}

@Test(groups = {CHECK_CPP_FILES})
public void deserializeFromCppOneString() throws IOException {
final int[] nArr = {0, 1, 10, 100, 1000, 10_000, 100_000, 1_000_000};
for (int n : nArr) {
final byte[] bytes = Files.readAllBytes(cppPath.resolve("aos_1_n" + n + "_cpp.sk"));
final TupleSketch<ArrayOfStringsSummary> sketch = ArrayOfStringsTupleSketch.heapifySketch(MemorySegment.ofArray(bytes), new ArrayOfStringsSummaryDeserializer());
assertTrue(n == 0 ? sketch.isEmpty() : !sketch.isEmpty());
assertEquals(sketch.getEstimate(), n, n * 0.03);
assertTrue(n > 1000? sketch.isEstimationMode() : !sketch.isEstimationMode());

final TupleSketchIterator<ArrayOfStringsSummary> it = sketch.iterator();
while (it.next()) {
assertTrue(it.getHash() < sketch.getThetaLong());
final String[] summary = it.getSummary().getValue();
assertEquals(summary.length, 1);
}
}
}

@Test(groups = {CHECK_CPP_FILES})
public void deserializeFromCppThreeStrings() throws IOException {
final int[] nArr = {0, 1, 10, 100, 1000, 10_000, 100_000, 1_000_000};
for (int n : nArr) {
final byte[] bytes = Files.readAllBytes(cppPath.resolve("aos_3_n" + n + "_cpp.sk"));
final TupleSketch<ArrayOfStringsSummary> sketch = ArrayOfStringsTupleSketch.heapifySketch(MemorySegment.ofArray(bytes), new ArrayOfStringsSummaryDeserializer());
assertTrue(n == 0 ? sketch.isEmpty() : !sketch.isEmpty());
assertEquals(sketch.getEstimate(), n, n * 0.03);
assertTrue(n > 1000? sketch.isEstimationMode() : !sketch.isEstimationMode());

final TupleSketchIterator<ArrayOfStringsSummary> it = sketch.iterator();
while (it.next()) {
assertTrue(it.getHash() < sketch.getThetaLong());
final String[] summary = it.getSummary().getValue();
assertEquals(summary.length, 3);
}
}
}

@Test(groups = {CHECK_CPP_FILES})
public void deserializeFromCppOneStringNonEmptyNoEntries() throws IOException {
final byte[] bytes = Files.readAllBytes(cppPath.resolve("aos_1_non_empty_no_entries_cpp.sk"));
final TupleSketch<ArrayOfStringsSummary> sketch = ArrayOfStringsTupleSketch.heapifySketch(MemorySegment.ofArray(bytes), new ArrayOfStringsSummaryDeserializer());

assertFalse(sketch.isEmpty());
assertEquals(sketch.getRetainedEntries(), 0);
}

@Test(groups = {CHECK_CPP_FILES})
public void deserializeFromCppMultiKeyStrings() throws IOException {
final int[] nArr = {0, 1, 10, 100, 1000, 10_000, 100_000, 1_000_000};
for (int n : nArr) {
final byte[] bytes = Files.readAllBytes(cppPath.resolve("aos_multikey_n" + n + "_cpp.sk"));
final TupleSketch<ArrayOfStringsSummary> sketch = ArrayOfStringsTupleSketch.heapifySketch(MemorySegment.ofArray(bytes), new ArrayOfStringsSummaryDeserializer());
assertTrue(n == 0 ? sketch.isEmpty() : !sketch.isEmpty());
assertEquals(sketch.getEstimate(), n, n * 0.03);
assertTrue(n > 1000? sketch.isEstimationMode() : !sketch.isEstimationMode());

final TupleSketchIterator<ArrayOfStringsSummary> it = sketch.iterator();
while (it.next()) {
assertTrue(it.getHash() < sketch.getThetaLong());
final String[] summary = it.getSummary().getValue();
assertEquals(summary.length, 1);
}
}
}

@Test(groups = {CHECK_CPP_FILES})
public void deserializeFromCppUnicodeStrings() throws IOException {
final byte[] bytes = Files.readAllBytes(cppPath.resolve("aos_unicode_cpp.sk"));
final TupleSketch<ArrayOfStringsSummary> sketch = ArrayOfStringsTupleSketch.heapifySketch(MemorySegment.ofArray(bytes), new ArrayOfStringsSummaryDeserializer());
assertFalse(sketch.isEmpty());
assertFalse(sketch.isEstimationMode());
assertEquals(sketch.getEstimate(), 3.0);

final Set<List<String>> summaries = getSummaries(sketch);
assertTrue(summaries.contains(Arrays.asList("밸류", "값")));
assertTrue(summaries.contains(Arrays.asList("📦", "🎁")));
assertTrue(summaries.contains(Arrays.asList("ценить1", "ценить2")));
}

@Test(groups = {CHECK_CPP_FILES})
public void deserializeFromCppEmptyStrings() throws IOException {
final byte[] bytes = Files.readAllBytes(cppPath.resolve("aos_empty_strings_cpp.sk"));
final TupleSketch<ArrayOfStringsSummary> sketch = ArrayOfStringsTupleSketch.heapifySketch(MemorySegment.ofArray(bytes), new ArrayOfStringsSummaryDeserializer());
assertFalse(sketch.isEmpty());
assertFalse(sketch.isEstimationMode());
assertEquals(sketch.getEstimate(), 3.0);

final Set<List<String>> summaries = getSummaries(sketch);
assertTrue(summaries.contains(Arrays.asList("empty_key_value")));
assertTrue(summaries.contains(Arrays.asList("")));
assertTrue(summaries.contains(Arrays.asList("", "")));
}

private static Set<List<String>> getSummaries(final TupleSketch<ArrayOfStringsSummary> sketch) {
final Set<List<String>> summaries = new HashSet<>();
final TupleSketchIterator<ArrayOfStringsSummary> it = sketch.iterator();
while (it.next()) {
assertTrue(it.getHash() < sketch.getThetaLong());
summaries.add(Arrays.asList(it.getSummary().getValue()));
}
return summaries;
}
}
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