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Add test for BoundedTrieResult and some more plumbing
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sdks/java/core/src/test/java/org/apache/beam/sdk/metrics/BoundedTrieResultTest.java
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| /* | ||
| * Licensed to the Apache Software Foundation (ASF) under one | ||
| * or more contributor license agreements. See the NOTICE file | ||
| * distributed with this work for additional information | ||
| * regarding copyright ownership. The ASF licenses this file | ||
| * to you under the Apache License, Version 2.0 (the | ||
| * "License"); you may not use this file except in compliance | ||
| * with the License. You may obtain a copy of the License at | ||
| * | ||
| * http://www.apache.org/licenses/LICENSE-2.0 | ||
| * | ||
| * Unless required by applicable law or agreed to in writing, software | ||
| * distributed under the License is distributed on an "AS IS" BASIS, | ||
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| * See the License for the specific language governing permissions and | ||
| * limitations under the License. | ||
| */ | ||
| package org.apache.beam.sdk.metrics; | ||
|
|
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| import java.util.List; | ||
| import java.util.Set; | ||
| import org.apache.beam.vendor.guava.v32_1_2_jre.com.google.common.collect.ImmutableList; | ||
| import org.apache.beam.vendor.guava.v32_1_2_jre.com.google.common.collect.ImmutableSet; | ||
| import org.junit.Assert; | ||
| import org.junit.Test; | ||
|
|
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| public class BoundedTrieResultTest { | ||
|
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| @Test | ||
| public void testCreate() { | ||
| Set<List<String>> inputSet = | ||
| ImmutableSet.of( | ||
| ImmutableList.of("a", "b"), ImmutableList.of("c", "d"), ImmutableList.of("e")); | ||
| BoundedTrieResult result = BoundedTrieResult.create(inputSet); | ||
| Assert.assertEquals(inputSet, result.getResult()); | ||
| } | ||
|
|
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| @Test | ||
| public void testCreate_empty() { | ||
| Set<List<String>> inputSet = ImmutableSet.of(); | ||
| BoundedTrieResult result = BoundedTrieResult.create(inputSet); | ||
| Assert.assertEquals(inputSet, result.getResult()); | ||
| } | ||
|
|
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| @Test | ||
| public void testEmpty() { | ||
| BoundedTrieResult result = BoundedTrieResult.empty(); | ||
| Assert.assertTrue(result.getResult().isEmpty()); | ||
| } | ||
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| @Test | ||
| public void testImmutability() { | ||
| Set<List<String>> inputSet = | ||
| ImmutableSet.of( | ||
| ImmutableList.of("a", "b"), ImmutableList.of("c", "d"), ImmutableList.of("e")); | ||
| BoundedTrieResult result = BoundedTrieResult.create(inputSet); | ||
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| // Try to modify the set returned by getResult() | ||
| try { | ||
| result.getResult().add(ImmutableList.of("f")); | ||
| Assert.fail("UnsupportedOperationException expected"); | ||
| } catch (UnsupportedOperationException expected) { | ||
| } | ||
| } | ||
| } |
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