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Rewrite basic collecting tests cases with various parallelism levels (#…
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69 changes: 69 additions & 0 deletions
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src/test/java/com/pivovarit/collectors/test/BasicParallelismTest.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,69 @@ | ||
| package com.pivovarit.collectors.test; | ||
|
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| import com.pivovarit.collectors.ParallelCollectors; | ||
| import org.junit.jupiter.api.DynamicTest; | ||
| import org.junit.jupiter.api.TestFactory; | ||
|
|
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| import java.util.List; | ||
| import java.util.concurrent.CompletableFuture; | ||
| import java.util.concurrent.Executor; | ||
| import java.util.concurrent.Executors; | ||
| import java.util.function.Function; | ||
| import java.util.stream.Collector; | ||
| import java.util.stream.IntStream; | ||
| import java.util.stream.Stream; | ||
|
|
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| import static com.pivovarit.collectors.test.BasicParallelismTest.CollectorDefinition.collector; | ||
| import static java.util.stream.Collectors.collectingAndThen; | ||
| import static java.util.stream.Collectors.toList; | ||
| import static org.assertj.core.api.AssertionsForInterfaceTypes.assertThat; | ||
|
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| class BasicParallelismTest { | ||
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| private static Stream<CollectorDefinition<Integer, Integer>> allBounded() { | ||
| return Stream.of( | ||
| collector("parallel(e, p)", (f, p) -> collectingAndThen(ParallelCollectors.parallel(f, e(), p), c -> c.join().toList())), | ||
| collector("parallel(toList(), e, p)", (f, p) -> collectingAndThen(ParallelCollectors.parallel(f, toList(), e(), p), CompletableFuture::join)), | ||
| collector("parallel(toList(), e, p) [batching]", (f, p) -> collectingAndThen(ParallelCollectors.Batching.parallel(f, toList(), e(), p), CompletableFuture::join)), | ||
| collector("parallelToStream(e, p)", (f, p) -> collectingAndThen(ParallelCollectors.parallelToStream(f, e(), p), Stream::toList)), | ||
| collector("parallelToStream(e, p) [batching]", (f, p) -> collectingAndThen(ParallelCollectors.Batching.parallelToStream(f, e(), p), Stream::toList)), | ||
| collector("parallelToOrderedStream(e, p)", (f, p) -> collectingAndThen(ParallelCollectors.parallelToOrderedStream(f, e(), p), Stream::toList)), | ||
| collector("parallelToOrderedStream(e, p) [batching]", (f, p) -> collectingAndThen(ParallelCollectors.Batching.parallelToOrderedStream(f, e(), p), Stream::toList)) | ||
| ); | ||
| } | ||
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| @TestFactory | ||
| Stream<DynamicTest> shouldProcessEmptyWithMaxParallelism() { | ||
| return Stream.of(1, 2, 4, 8, 16, 32, 64, 100) | ||
| .flatMap(p -> allBounded() | ||
| .map(c -> DynamicTest.dynamicTest("%s (parallelism: %d)".formatted(c.name(), p), () -> { | ||
| assertThat(Stream.<Integer>empty().collect(c.factory().collector(i -> i, p))).isEmpty(); | ||
| }))); | ||
| } | ||
|
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| @TestFactory | ||
| Stream<DynamicTest> shouldProcessAllElementsWithMaxParallelism() { | ||
| return Stream.of(1, 2, 4, 8, 16, 32, 64, 100) | ||
| .flatMap(p -> allBounded() | ||
| .map(c -> DynamicTest.dynamicTest("%s (parallelism: %d)".formatted(c.name(), p), () -> { | ||
| var list = IntStream.range(0, 100).boxed().toList(); | ||
| List<Integer> result = list.stream().collect(c.factory().collector(i -> i, p)); | ||
| assertThat(result).containsExactlyInAnyOrderElementsOf(list); | ||
| }))); | ||
| } | ||
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| protected record CollectorDefinition<T, R>(String name, CollectorFactory<T, R> factory) { | ||
| static <T, R> CollectorDefinition<T, R> collector(String name, CollectorFactory<T, R> collector) { | ||
| return new CollectorDefinition<>(name, collector); | ||
| } | ||
| } | ||
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| @FunctionalInterface | ||
| interface CollectorFactory<T, R> { | ||
| Collector<T, ?, List<R>> collector(Function<T, R> f, Integer p); | ||
| } | ||
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| private static Executor e() { | ||
| return Executors.newCachedThreadPool(); | ||
| } | ||
| } |
100 changes: 100 additions & 0 deletions
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src/test/java/com/pivovarit/collectors/test/BasicProcessingTest.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,100 @@ | ||
| package com.pivovarit.collectors.test; | ||
|
|
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| import com.pivovarit.collectors.ParallelCollectors; | ||
| import org.junit.jupiter.api.DynamicTest; | ||
| import org.junit.jupiter.api.TestFactory; | ||
|
|
||
| import java.util.List; | ||
| import java.util.concurrent.CompletableFuture; | ||
| import java.util.concurrent.Executor; | ||
| import java.util.concurrent.Executors; | ||
| import java.util.function.Function; | ||
| import java.util.stream.Collector; | ||
| import java.util.stream.IntStream; | ||
| import java.util.stream.Stream; | ||
|
|
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| import static com.pivovarit.collectors.test.BasicProcessingTest.CollectorDefinition.collector; | ||
| import static java.util.stream.Collectors.collectingAndThen; | ||
| import static java.util.stream.Collectors.toList; | ||
| import static org.assertj.core.api.AssertionsForInterfaceTypes.assertThat; | ||
|
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| class BasicProcessingTest { | ||
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| private static Stream<CollectorDefinition<Integer, Integer>> all() { | ||
| return Stream.of( | ||
| collector("parallel()", f -> collectingAndThen(ParallelCollectors.parallel(f), c -> c.join().toList())), | ||
| collector("parallel(e)", f -> collectingAndThen(ParallelCollectors.parallel(f, e()), c -> c.join().toList())), | ||
| collector("parallel(e, p)", f -> collectingAndThen(ParallelCollectors.parallel(f, e(), p()), c -> c.join().toList())), | ||
| collector("parallel(toList())", f -> collectingAndThen(ParallelCollectors.parallel(f, toList()), CompletableFuture::join)), | ||
| collector("parallel(toList(), e)", f -> collectingAndThen(ParallelCollectors.parallel(f, toList(), e()), CompletableFuture::join)), | ||
| collector("parallel(toList(), e, p)", f -> collectingAndThen(ParallelCollectors.parallel(f, toList(), e(), p()), CompletableFuture::join)), | ||
| collector("parallel(toList(), e, p) [batching]", f -> collectingAndThen(ParallelCollectors.Batching.parallel(f, toList(), e(), p()), CompletableFuture::join)), | ||
| collector("parallelToStream()", f -> collectingAndThen(ParallelCollectors.parallelToStream(f), Stream::toList)), | ||
| collector("parallelToStream(e)", f -> collectingAndThen(ParallelCollectors.parallelToStream(f, e()), Stream::toList)), | ||
| collector("parallelToStream(e, p)", f -> collectingAndThen(ParallelCollectors.parallelToStream(f, e(), p()), Stream::toList)), | ||
| collector("parallelToStream(e, p) [batching]", f -> collectingAndThen(ParallelCollectors.Batching.parallelToStream(f, e(), p()), Stream::toList)), | ||
| collector("parallelToOrderedStream()", f -> collectingAndThen(ParallelCollectors.parallelToOrderedStream(f), Stream::toList)), | ||
| collector("parallelToOrderedStream(e)", f -> collectingAndThen(ParallelCollectors.parallelToOrderedStream(f, e()), Stream::toList)), | ||
| collector("parallelToOrderedStream(e, p)", f -> collectingAndThen(ParallelCollectors.parallelToOrderedStream(f, e(), p()), Stream::toList)), | ||
| collector("parallelToOrderedStream(e, p) [batching]", f -> collectingAndThen(ParallelCollectors.Batching.parallelToOrderedStream(f, e(), p()), Stream::toList)) | ||
| ); | ||
| } | ||
|
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| public static Stream<CollectorDefinition<Integer, Integer>> allOrdered() { | ||
| return Stream.of( | ||
| collector("parallel()", f -> collectingAndThen(ParallelCollectors.parallel(f), c -> c.join().toList())), | ||
| collector("parallel(e)", f -> collectingAndThen(ParallelCollectors.parallel(f, e()), c -> c.join().toList())), | ||
| collector("parallel(e, p)", f -> collectingAndThen(ParallelCollectors.parallel(f, e(), p()), c -> c.join().toList())), | ||
| collector("parallel(toList())", f -> collectingAndThen(ParallelCollectors.parallel(f, toList()), CompletableFuture::join)), | ||
| collector("parallel(toList(), e)", f -> collectingAndThen(ParallelCollectors.parallel(f, toList(), e()), CompletableFuture::join)), | ||
| collector("parallel(toList(), e, p)", f -> collectingAndThen(ParallelCollectors.parallel(f, toList(), e(), p()), CompletableFuture::join)), | ||
| collector("parallel(toList(), e, p) [batching]", f -> collectingAndThen(ParallelCollectors.Batching.parallel(f, toList(), e(), p()), CompletableFuture::join)), | ||
| collector("parallelToOrderedStream()", f -> collectingAndThen(ParallelCollectors.parallelToOrderedStream(f), Stream::toList)), | ||
| collector("parallelToOrderedStream(e)", f -> collectingAndThen(ParallelCollectors.parallelToOrderedStream(f, e()), Stream::toList)), | ||
| collector("parallelToOrderedStream(e, p)", f -> collectingAndThen(ParallelCollectors.parallelToOrderedStream(f, e(), p()), Stream::toList)), | ||
| collector("parallelToOrderedStream(e, p) [batching]", f -> collectingAndThen(ParallelCollectors.Batching.parallelToOrderedStream(f, e(), p()), Stream::toList)) | ||
| ); | ||
| } | ||
|
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| @TestFactory | ||
| Stream<DynamicTest> shouldProcessEmpty() { | ||
| return all() | ||
| .map(c -> DynamicTest.dynamicTest(c.name(), () -> { | ||
| assertThat(Stream.<Integer>empty().collect(c.collector().apply(i -> i))).isEmpty(); | ||
| })); | ||
| } | ||
|
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| @TestFactory | ||
| Stream<DynamicTest> shouldProcessAllElements() { | ||
| return all() | ||
| .map(c -> DynamicTest.dynamicTest(c.name(), () -> { | ||
| var list = IntStream.range(0, 100).boxed().toList(); | ||
| List<Integer> result = list.stream().collect(c.collector().apply(i -> i)); | ||
| assertThat(result).containsExactlyInAnyOrderElementsOf(list); | ||
| })); | ||
| } | ||
|
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| @TestFactory | ||
| Stream<DynamicTest> shouldProcessAllElementsInOrder() { | ||
| return allOrdered() | ||
| .map(c -> DynamicTest.dynamicTest(c.name(), () -> { | ||
| var list = IntStream.range(0, 100).boxed().toList(); | ||
| List<Integer> result = list.stream().collect(c.collector().apply(i -> i)); | ||
| assertThat(result).containsAnyElementsOf(list); | ||
| })); | ||
| } | ||
|
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| record CollectorDefinition<T, R>(String name, Function<Function<T, R>, Collector<T, ?, List<R>>> collector) { | ||
| static <T, R> CollectorDefinition<T, R> collector(String name, Function<Function<T, R>, Collector<T, ?, List<R>>> collector) { | ||
| return new CollectorDefinition<>(name, collector); | ||
| } | ||
| } | ||
|
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| private static Executor e() { | ||
| return Executors.newCachedThreadPool(); | ||
| } | ||
|
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| private static int p() { | ||
| return 4; | ||
| } | ||
| } |