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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.skyframe.packages;
import static com.google.common.truth.Truth.assertThat;
import static com.google.devtools.build.lib.testutil.MoreAsserts.assertContainsEvent;
import static com.google.devtools.build.lib.testutil.MoreAsserts.assertNoEvents;
import static org.junit.Assert.fail;
import com.google.common.base.Joiner;
import com.google.common.collect.ImmutableList;
import com.google.common.collect.ImmutableMap;
import com.google.common.eventbus.EventBus;
import com.google.devtools.build.lib.cmdline.PackageIdentifier;
import com.google.devtools.build.lib.events.Reporter;
import com.google.devtools.build.lib.events.StoredEventHandler;
import com.google.devtools.build.lib.packages.NoSuchPackageException;
import com.google.devtools.build.lib.packages.Package;
import com.google.devtools.build.lib.vfs.FileSystem;
import com.google.devtools.build.lib.vfs.FileSystemUtils;
import com.google.devtools.build.lib.vfs.Path;
import com.google.devtools.build.lib.vfs.PathFragment;
import com.google.devtools.build.lib.vfs.inmemoryfs.InMemoryFileSystem;
import org.junit.Before;
import org.junit.Test;
/** Abstract base class of a unit test for a {@link AbstractPackageLoader} implementation. */
public abstract class AbstractPackageLoaderTest {
private Path pkgRoot;
protected StoredEventHandler handler;
protected PackageLoader pkgLoader;
@Before
public final void init() throws Exception {
FileSystem fs = new InMemoryFileSystem();
pkgRoot = fs.getPath("/").getRelative("pkgRoot");
FileSystemUtils.createDirectoryAndParents(pkgRoot);
Reporter reporter = new Reporter(new EventBus());
handler = new StoredEventHandler();
reporter.addHandler(handler);
pkgLoader = makeFreshBuilder(pkgRoot)
.useDefaultSkylarkSemantics()
.setReporter(reporter)
.build();
}
protected abstract AbstractPackageLoader.Builder makeFreshBuilder(Path pkgRoot);
@Test
public void simpleNoPackage() throws Exception {
PackageIdentifier pkgId = PackageIdentifier.createInMainRepo(PathFragment.create("nope"));
try {
pkgLoader.loadPackage(pkgId);
fail();
} catch (NoSuchPackageException expected) {
assertThat(expected)
.hasMessageThat()
.isEqualTo("no such package 'nope': BUILD file not found on package path");
}
assertNoEvents(handler.getEvents());
}
@Test
public void simpleBadPackage() throws Exception {
file("bad/BUILD", "invalidBUILDsyntax");
PackageIdentifier pkgId = PackageIdentifier.createInMainRepo(PathFragment.create("bad"));
Package badPkg = pkgLoader.loadPackage(pkgId);
assertThat(badPkg.containsErrors()).isTrue();
assertContainsEvent(badPkg.getEvents(), "invalidBUILDsyntax");
assertContainsEvent(handler.getEvents(), "invalidBUILDsyntax");
}
@Test
public void simpleGoodPackage() throws Exception {
file("good/BUILD", "sh_library(name = 'good')");
PackageIdentifier pkgId = PackageIdentifier.createInMainRepo(PathFragment.create("good"));
Package goodPkg = pkgLoader.loadPackage(pkgId);
assertThat(goodPkg.containsErrors()).isFalse();
assertThat(
goodPkg.getTarget("good").getAssociatedRule().getRuleClass()).isEqualTo("sh_library");
assertNoEvents(goodPkg.getEvents());
assertNoEvents(handler.getEvents());
}
@Test
public void simpleMultipleGoodPackage() throws Exception {
file("good1/BUILD", "sh_library(name = 'good1')");
file("good2/BUILD", "sh_library(name = 'good2')");
PackageIdentifier pkgId1 = PackageIdentifier.createInMainRepo(PathFragment.create("good1"));
PackageIdentifier pkgId2 = PackageIdentifier.createInMainRepo(PathFragment.create("good2"));
ImmutableMap<PackageIdentifier, PackageLoader.PackageOrException> pkgs =
pkgLoader.loadPackages(ImmutableList.of(pkgId1, pkgId2));
assertThat(pkgs.get(pkgId1).get().containsErrors()).isFalse();
assertThat(pkgs.get(pkgId2).get().containsErrors()).isFalse();
assertThat(pkgs.get(pkgId1).get().getTarget("good1").getAssociatedRule().getRuleClass())
.isEqualTo("sh_library");
assertThat(pkgs.get(pkgId2).get().getTarget("good2").getAssociatedRule().getRuleClass())
.isEqualTo("sh_library");
assertNoEvents(pkgs.get(pkgId1).get().getEvents());
assertNoEvents(pkgs.get(pkgId2).get().getEvents());
assertNoEvents(handler.getEvents());
}
@Test
public void loadPackagesToleratesDuplicates() throws Exception {
file("good1/BUILD", "sh_library(name = 'good1')");
PackageIdentifier pkgId = PackageIdentifier.createInMainRepo(PathFragment.create("good1"));
ImmutableMap<PackageIdentifier, PackageLoader.PackageOrException> pkgs =
pkgLoader.loadPackages(ImmutableList.of(pkgId, pkgId));
assertThat(pkgs.get(pkgId).get().containsErrors()).isFalse();
assertThat(pkgs.get(pkgId).get().getTarget("good1").getAssociatedRule().getRuleClass())
.isEqualTo("sh_library");
assertNoEvents(pkgs.get(pkgId).get().getEvents());
assertNoEvents(handler.getEvents());
}
@Test
public void simpleGoodPackage_Skylark() throws Exception {
file("good/good.bzl",
"def f(x):",
" native.sh_library(name = x)");
file("good/BUILD",
"load('//good:good.bzl', 'f')",
"f('good')");
PackageIdentifier pkgId = PackageIdentifier.createInMainRepo(PathFragment.create("good"));
Package goodPkg = pkgLoader.loadPackage(pkgId);
assertThat(goodPkg.containsErrors()).isFalse();
assertThat(
goodPkg.getTarget("good").getAssociatedRule().getRuleClass()).isEqualTo("sh_library");
assertNoEvents(goodPkg.getEvents());
assertNoEvents(handler.getEvents());
}
protected Path path(String rootRelativePath) {
return pkgRoot.getRelative(PathFragment.create(rootRelativePath));
}
protected Path file(String fileName, String... contents) throws Exception {
Path path = path(fileName);
FileSystemUtils.createDirectoryAndParents(path.getParentDirectory());
FileSystemUtils.writeContentAsLatin1(path, Joiner.on("\n").join(contents));
return path;
}
}
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