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// Copyright 2017 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.analysis;
import static com.google.common.base.Preconditions.checkNotNull;
import static com.google.common.truth.Truth.assertThat;
import static com.google.devtools.build.lib.analysis.OutputGroupInfo.HIDDEN_OUTPUT_GROUP_PREFIX;
import static com.google.devtools.build.lib.analysis.TopLevelArtifactHelper.getAllArtifactsToBuild;
import static java.util.Arrays.asList;
import com.google.common.collect.ImmutableMap;
import com.google.common.collect.ImmutableSortedSet;
import com.google.devtools.build.lib.actions.Artifact;
import com.google.devtools.build.lib.actions.ArtifactRoot;
import com.google.devtools.build.lib.analysis.TopLevelArtifactHelper.ArtifactsInOutputGroup;
import com.google.devtools.build.lib.analysis.TopLevelArtifactHelper.ArtifactsToBuild;
import com.google.devtools.build.lib.collect.nestedset.NestedSet;
import com.google.devtools.build.lib.collect.nestedset.NestedSetBuilder;
import com.google.devtools.build.lib.collect.nestedset.Order;
import com.google.devtools.build.lib.testutil.Scratch;
import com.google.devtools.build.lib.util.Pair;
import com.google.devtools.build.lib.vfs.Path;
import org.junit.Before;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.runners.JUnit4;
/** Tests for {@link TopLevelArtifactHelper}. */
@RunWith(JUnit4.class)
public class TopLevelArtifactHelperTest {
private TopLevelArtifactContext ctx;
private OutputGroupInfo groupProvider;
private Path path;
private ArtifactRoot root;
private int artifactIdx;
@Before
public final void setRootDir() throws Exception {
Scratch scratch = new Scratch();
Path execRoot = scratch.getFileSystem().getPath("/");
root = ArtifactRoot.asDerivedRoot(execRoot, scratch.dir("/blaze-out"));
path = scratch.dir("/blaze-out/foo");
}
private void setup(Iterable<Pair<String, Integer>> groupArtifacts) {
ImmutableSortedSet.Builder<String> setBuilder = ImmutableSortedSet.naturalOrder();
ImmutableMap.Builder<String, NestedSet<Artifact>> mapBuilder = ImmutableMap.builder();
for (Pair<String, Integer> groupArtifact : groupArtifacts) {
setBuilder.add(checkNotNull(groupArtifact.getFirst()));
mapBuilder.put(
groupArtifact.getFirst(), newArtifacts(checkNotNull(groupArtifact.getSecond())));
}
ctx = new TopLevelArtifactContext(false, setBuilder.build());
groupProvider = new OutputGroupInfo(mapBuilder.build());
}
@Test
public void artifactsShouldBeSeparateByGroup() {
setup(asList(Pair.of("foo", 3), Pair.of("bar", 2)));
ArtifactsToBuild allArtifacts = getAllArtifactsToBuild(groupProvider, null, ctx);
assertThat(allArtifacts.getAllArtifacts()).hasSize(5);
assertThat(allArtifacts.getImportantArtifacts()).hasSize(5);
NestedSet<ArtifactsInOutputGroup> artifactsByGroup =
allArtifacts.getAllArtifactsByOutputGroup();
// Two groups
assertThat(artifactsByGroup).hasSize(2);
for (ArtifactsInOutputGroup artifacts : artifactsByGroup) {
String outputGroup = artifacts.getOutputGroup();
if ("foo".equals(outputGroup)) {
assertThat(artifacts.getArtifacts()).hasSize(3);
} else if ("bar".equals(outputGroup)) {
assertThat(artifacts.getArtifacts()).hasSize(2);
}
}
}
@Test
public void emptyGroupsShouldBeIgnored() {
setup(asList(Pair.of("foo", 1), Pair.of("bar", 0)));
ArtifactsToBuild allArtifacts = getAllArtifactsToBuild(groupProvider, null, ctx);
assertThat(allArtifacts.getAllArtifacts()).hasSize(1);
assertThat(allArtifacts.getImportantArtifacts()).hasSize(1);
NestedSet<ArtifactsInOutputGroup> artifactsByGroup =
allArtifacts.getAllArtifactsByOutputGroup();
// The bar list should not appear here, as it contains no artifacts.
assertThat(artifactsByGroup).hasSize(1);
assertThat(artifactsByGroup.toList().get(0).getOutputGroup()).isEqualTo("foo");
}
@Test
public void importantArtifacts() {
setup(asList(Pair.of(HIDDEN_OUTPUT_GROUP_PREFIX + "notimportant", 1), Pair.of("important", 2)));
ArtifactsToBuild allArtifacts = getAllArtifactsToBuild(groupProvider, null, ctx);
assertThat(allArtifacts.getAllArtifacts()).hasSize(3);
assertThat(allArtifacts.getImportantArtifacts()).hasSize(2);
}
private NestedSet<Artifact> newArtifacts(int num) {
NestedSetBuilder<Artifact> builder = new NestedSetBuilder<>(Order.STABLE_ORDER);
for (int i = 0; i < num; i++) {
builder.add(newArtifact());
}
return builder.build();
}
private Artifact newArtifact() {
return new Artifact(path.getRelative(Integer.toString(artifactIdx++)), root);
}
}
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