| // Copyright 2019 The Bazel Authors. All rights reserved. |
| // |
| // Licensed 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 com.google.devtools.build.lib.packages; |
| |
| import static com.google.common.truth.Truth.assertThat; |
| |
| import com.google.common.collect.ImmutableList; |
| import com.google.devtools.build.lib.cmdline.Label; |
| import com.google.devtools.build.lib.cmdline.PackageIdentifier; |
| import com.google.devtools.build.lib.events.NullEventHandler; |
| import com.google.devtools.build.lib.packages.util.PackageLoadingTestCase; |
| import org.junit.Test; |
| import org.junit.runner.RunWith; |
| import org.junit.runners.JUnit4; |
| |
| /** Tests for ensuring that optimizations we have during package loading actually occur. */ |
| @RunWith(JUnit4.class) |
| public class PackageLoadingOptimizationsTest extends PackageLoadingTestCase { |
| @Test |
| public void attributeListValuesAreDedupedIntraPackage() throws Exception { |
| scratch.file( |
| "foo/BUILD", |
| "L = ['//other:t' + str(i) for i in range(10)]", |
| "[sh_library(name = 't' + str(i), deps = L) for i in range(10)]"); |
| |
| Package fooPkg = |
| getPackageManager() |
| .getPackage(NullEventHandler.INSTANCE, PackageIdentifier.createInMainRepo("foo")); |
| |
| ImmutableList.Builder<ImmutableList<Label>> allListsBuilder = ImmutableList.builder(); |
| for (Rule ruleInstance : fooPkg.getTargets(Rule.class)) { |
| assertThat(ruleInstance.getTargetKind()).isEqualTo("sh_library rule"); |
| @SuppressWarnings("unchecked") |
| ImmutableList<Label> depsList = |
| (ImmutableList<Label>) ruleInstance.getAttributeContainer().getAttr("deps"); |
| allListsBuilder.add(depsList); |
| } |
| ImmutableList<ImmutableList<Label>> allLists = allListsBuilder.build(); |
| assertThat(allLists).hasSize(10); |
| ImmutableList<Label> firstList = allLists.get(0); |
| for (int i = 1; i < allLists.size(); i++) { |
| assertThat(allLists.get(i)).isSameInstanceAs(firstList); |
| } |
| } |
| } |