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// Copyright 2015 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.actions;
import static com.google.common.truth.Truth.assertThat;
import static org.mockito.Mockito.mock;
import static org.mockito.Mockito.when;
import com.google.common.collect.ImmutableList;
import com.google.common.collect.ImmutableMap;
import com.google.common.collect.ImmutableSet;
import com.google.devtools.build.lib.actions.util.ActionsTestUtil;
import com.google.devtools.build.lib.collect.nestedset.NestedSet;
import com.google.devtools.build.lib.collect.nestedset.NestedSetBuilder;
import com.google.devtools.build.lib.testutil.Scratch;
import com.google.devtools.build.lib.vfs.Path;
import com.google.devtools.build.lib.vfs.PathFragment;
import java.io.IOException;
import java.util.Map;
import org.junit.Before;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.runners.JUnit4;
/** Tests for CompositeRunfilesSupplier */
@RunWith(JUnit4.class)
public class CompositeRunfilesSupplierTest {
private RunfilesSupplier mockFirst;
private RunfilesSupplier mockSecond;
private Path execRoot;
private ArtifactRoot rootDir;
@Before
public final void createMocks() throws IOException {
Scratch scratch = new Scratch();
execRoot = scratch.getFileSystem().getPath("/");
rootDir = ArtifactRoot.asDerivedRoot(execRoot, scratch.dir("/fake/root/dont/matter"));
mockFirst = mock(RunfilesSupplier.class);
mockSecond = mock(RunfilesSupplier.class);
}
@Test
public void emptySuppliersIgnored() {
assertThat(
CompositeRunfilesSupplier.of(
EmptyRunfilesSupplier.INSTANCE, EmptyRunfilesSupplier.INSTANCE))
.isSameInstanceAs(EmptyRunfilesSupplier.INSTANCE);
assertThat(CompositeRunfilesSupplier.of(EmptyRunfilesSupplier.INSTANCE, mockFirst))
.isSameInstanceAs(mockFirst);
assertThat(CompositeRunfilesSupplier.of(mockFirst, EmptyRunfilesSupplier.INSTANCE))
.isSameInstanceAs(mockFirst);
}
@Test
public void fromSuppliersSeleton() {
assertThat(CompositeRunfilesSupplier.fromSuppliers(ImmutableList.of(mockFirst)))
.isSameInstanceAs(mockFirst);
}
@Test
public void testGetArtifactsReturnsCombinedArtifacts() {
when(mockFirst.getArtifacts()).thenReturn(mkArtifacts(rootDir, "first", "shared"));
when(mockSecond.getArtifacts()).thenReturn(mkArtifacts(rootDir, "second", "shared"));
RunfilesSupplier underTest = CompositeRunfilesSupplier.of(mockFirst, mockSecond);
assertThat(underTest.getArtifacts().toList())
.containsExactlyElementsIn(mkArtifacts(rootDir, "first", "second", "shared").toList());
}
@Test
public void testGetRunfilesDirsReturnsCombinedPaths() {
PathFragment first = PathFragment.create("first");
PathFragment second = PathFragment.create("second");
PathFragment shared = PathFragment.create("shared");
when(mockFirst.getRunfilesDirs()).thenReturn(ImmutableSet.of(first, shared));
when(mockSecond.getRunfilesDirs()).thenReturn(ImmutableSet.of(second, shared));
RunfilesSupplier underTest = CompositeRunfilesSupplier.of(mockFirst, mockSecond);
assertThat(underTest.getRunfilesDirs()).containsExactly(first, second, shared);
}
@Test
public void testGetMappingsReturnsMappingsWithFirstPrecedenceOverSecond() throws IOException {
PathFragment first = PathFragment.create("first");
Map<PathFragment, Artifact> firstMappings = mkMappings(rootDir, "first1", "first2");
PathFragment second = PathFragment.create("second");
Map<PathFragment, Artifact> secondMappings = mkMappings(rootDir, "second1", "second2");
PathFragment shared = PathFragment.create("shared");
Map<PathFragment, Artifact> firstSharedMappings = mkMappings(rootDir, "shared1", "shared2");
Map<PathFragment, Artifact> secondSharedMappings = mkMappings(rootDir, "lost1", "lost2");
when(mockFirst.getMappings(ArtifactPathResolver.IDENTITY)).thenReturn(ImmutableMap.of(
first, firstMappings,
shared, firstSharedMappings));
when(mockSecond.getMappings(ArtifactPathResolver.IDENTITY)).thenReturn(ImmutableMap.of(
second, secondMappings,
shared, secondSharedMappings));
// We expect the mappings for shared added by mockSecond to be dropped.
RunfilesSupplier underTest = CompositeRunfilesSupplier.of(mockFirst, mockSecond);
assertThat(underTest.getMappings(ArtifactPathResolver.IDENTITY)).containsExactly(
first, firstMappings,
second, secondMappings,
shared, firstSharedMappings);
}
@Test
public void testGetMappingsViaListConstructorReturnsMappingsWithFirstPrecedenceOverSecond()
throws IOException {
PathFragment first = PathFragment.create("first");
Map<PathFragment, Artifact> firstMappings = mkMappings(rootDir, "first1", "first2");
PathFragment second = PathFragment.create("second");
Map<PathFragment, Artifact> secondMappings = mkMappings(rootDir, "second1", "second2");
PathFragment shared = PathFragment.create("shared");
Map<PathFragment, Artifact> firstSharedMappings = mkMappings(rootDir, "shared1", "shared2");
Map<PathFragment, Artifact> secondSharedMappings = mkMappings(rootDir, "lost1", "lost2");
when(mockFirst.getMappings(ArtifactPathResolver.IDENTITY)).thenReturn(ImmutableMap.of(
first, firstMappings,
shared, firstSharedMappings));
when(mockSecond.getMappings(ArtifactPathResolver.IDENTITY)).thenReturn(ImmutableMap.of(
second, secondMappings,
shared, secondSharedMappings));
// We expect the mappings for shared added by mockSecond to be dropped.
RunfilesSupplier underTest = CompositeRunfilesSupplier.of(mockFirst, mockSecond);
assertThat(underTest.getMappings(ArtifactPathResolver.IDENTITY)).containsExactly(
first, firstMappings,
second, secondMappings,
shared, firstSharedMappings);
}
private static Map<PathFragment, Artifact> mkMappings(ArtifactRoot rootDir, String... paths) {
ImmutableMap.Builder<PathFragment, Artifact> builder = ImmutableMap.builder();
for (String path : paths) {
builder.put(PathFragment.create(path), ActionsTestUtil.createArtifact(rootDir, path));
}
return builder.build();
}
private static NestedSet<Artifact> mkArtifacts(ArtifactRoot rootDir, String... paths) {
NestedSetBuilder<Artifact> builder = NestedSetBuilder.stableOrder();
for (String path : paths) {
builder.add(ActionsTestUtil.createArtifact(rootDir, path));
}
return builder.build();
}
}