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// Copyright 2016 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.rules.cpp.proto;
import static com.google.common.truth.Truth.assertThat;
import static com.google.devtools.build.lib.actions.util.ActionsTestUtil.getFirstArtifactEndingWith;
import static com.google.devtools.build.lib.actions.util.ActionsTestUtil.prettyArtifactNames;
import com.google.common.collect.ImmutableList;
import com.google.common.eventbus.EventBus;
import com.google.devtools.build.lib.actions.Artifact;
import com.google.devtools.build.lib.analysis.ConfiguredTarget;
import com.google.devtools.build.lib.analysis.actions.SpawnAction;
import com.google.devtools.build.lib.analysis.util.BuildViewTestCase;
import com.google.devtools.build.lib.bazel.rules.cpp.proto.BazelCcProtoAspect;
import com.google.devtools.build.lib.packages.AspectParameters;
import com.google.devtools.build.lib.packages.util.Crosstool.CcToolchainConfig;
import com.google.devtools.build.lib.rules.cpp.CcCompilationContext;
import com.google.devtools.build.lib.rules.cpp.CcInfo;
import com.google.devtools.build.lib.rules.cpp.CppCompileAction;
import com.google.devtools.build.lib.rules.cpp.CppRuleClasses;
import com.google.devtools.build.lib.vfs.FileSystemUtils;
import com.google.devtools.build.lib.vfs.PathFragment;
import java.util.List;
import org.junit.Before;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.runners.JUnit4;
@RunWith(JUnit4.class)
public class CcProtoLibraryTest extends BuildViewTestCase {
@Before
public void setUp() throws Exception {
mockToolsConfig.create("/protobuf/WORKSPACE");
mockToolsConfig.overwrite(
"/protobuf/BUILD",
"package(default_visibility=['//visibility:public'])",
"exports_files(['protoc'])",
"proto_lang_toolchain(",
" name = 'cc_toolchain',",
" command_line = '--cpp_out=$(OUT)',",
" blacklisted_protos = [],",
")");
String existingWorkspace =
new String(FileSystemUtils.readContentAsLatin1(rootDirectory.getRelative("WORKSPACE")));
mockToolsConfig.overwrite(
"WORKSPACE",
"local_repository(name = 'com_google_protobuf', path = '/protobuf/')",
existingWorkspace);
invalidatePackages(); // A dash of magic to re-evaluate the WORKSPACE file.
}
@Test
public void basic() throws Exception {
getAnalysisMock()
.ccSupport()
.setupCcToolchainConfig(
mockToolsConfig,
CcToolchainConfig.builder()
.withFeatures(
CppRuleClasses.SUPPORTS_DYNAMIC_LINKER,
CppRuleClasses.SUPPORTS_INTERFACE_SHARED_LIBRARIES));
scratch.file(
"x/BUILD",
"cc_proto_library(name = 'foo_cc_proto', deps = ['foo_proto'])",
"proto_library(name = 'foo_proto', srcs = ['foo.proto'])");
assertThat(prettyArtifactNames(getFilesToBuild(getConfiguredTarget("//x:foo_cc_proto"))))
.containsExactly("x/foo.pb.h", "x/foo.pb.cc", "x/libfoo_proto.a",
"x/libfoo_proto.ifso", "x/libfoo_proto.so");
}
@Test
public void canBeUsedFromCcRules() throws Exception {
scratch.file(
"x/BUILD",
"cc_library(name = 'foo', srcs = ['foo.cc'], deps = ['foo_cc_proto'])",
"cc_binary(name = 'bin', srcs = ['bin.cc'], deps = ['foo_cc_proto'])",
"cc_proto_library(name = 'foo_cc_proto', deps = ['foo_proto'])",
"proto_library(name = 'foo_proto', srcs = ['foo.proto'])");
update(
ImmutableList.of("//x:foo", "//x:bin"),
false /* keepGoing */,
1 /* loadingPhaseThreads */,
true /* doAnalysis */,
new EventBus());
}
@Test
public void disallowMultipleDeps() throws Exception {
checkError(
"x",
"foo_cc_proto",
"'deps' attribute must contain exactly one label",
"cc_proto_library(name = 'foo_cc_proto', deps = ['foo_proto', 'bar_proto'])",
"proto_library(name = 'foo_proto', srcs = ['foo.proto'])",
"proto_library(name = 'bar_proto', srcs = ['bar.proto'])");
checkError(
"y",
"foo_cc_proto",
"'deps' attribute must contain exactly one label",
"cc_proto_library(name = 'foo_cc_proto', deps = [])");
}
@Test
public void aliasProtos() throws Exception {
scratch.file(
"x/BUILD",
"cc_proto_library(name = 'foo_cc_proto', deps = ['alias_proto'])",
"proto_library(name = 'alias_proto', deps = [':foo_proto'])",
"proto_library(name = 'foo_proto', srcs = ['foo.proto'])");
CcCompilationContext ccCompilationContext =
getConfiguredTarget("//x:foo_cc_proto").get(CcInfo.PROVIDER).getCcCompilationContext();
assertThat(prettyArtifactNames(ccCompilationContext.getDeclaredIncludeSrcs()))
.containsExactly("x/foo.pb.h");
}
@Test
public void ccCompilationContext() throws Exception {
scratch.file(
"x/BUILD",
"cc_proto_library(name = 'foo_cc_proto', deps = ['foo_proto'])",
"proto_library(name = 'foo_proto', srcs = ['foo.proto'], deps = [':bar_proto'])",
"proto_library(name = 'bar_proto', srcs = ['bar.proto'])");
CcCompilationContext ccCompilationContext =
getConfiguredTarget("//x:foo_cc_proto").get(CcInfo.PROVIDER).getCcCompilationContext();
assertThat(prettyArtifactNames(ccCompilationContext.getDeclaredIncludeSrcs()))
.containsExactly("x/foo.pb.h", "x/bar.pb.h");
}
@Test
public void outputDirectoryForProtoCompileAction() throws Exception {
scratch.file(
"x/BUILD",
"cc_proto_library(name = 'foo_cc_proto', deps = [':bar_proto'])",
"proto_library(name = 'bar_proto', srcs = ['bar.proto'])");
Artifact hFile =
getFirstArtifactEndingWith(
getFilesToBuild(getConfiguredTarget("//x:foo_cc_proto")), "bar.pb.h");
SpawnAction protoCompileAction = getGeneratingSpawnAction(hFile);
assertThat(protoCompileAction.getArguments())
.contains(
String.format(
"--cpp_out=%s", getTargetConfiguration().getGenfilesFragment().toString()));
}
@Test
public void outputDirectoryForProtoCompileAction_externalRepos() throws Exception {
scratch.file(
"x/BUILD", "cc_proto_library(name = 'foo_cc_proto', deps = ['@bla//foo:bar_proto'])");
scratch.file("/bla/WORKSPACE");
// Create the rule '@bla//foo:bar_proto'.
scratch.file(
"/bla/foo/BUILD",
"package(default_visibility=['//visibility:public'])",
"proto_library(name = 'bar_proto', srcs = ['bar.proto'])");
String existingWorkspace =
new String(FileSystemUtils.readContentAsLatin1(rootDirectory.getRelative("WORKSPACE")));
scratch.overwriteFile(
"WORKSPACE", "local_repository(name = 'bla', path = '/bla/')", existingWorkspace);
invalidatePackages(); // A dash of magic to re-evaluate the WORKSPACE file.
ConfiguredTarget target = getConfiguredTarget("//x:foo_cc_proto");
Artifact hFile = getFirstArtifactEndingWith(getFilesToBuild(target), "bar.pb.h");
SpawnAction protoCompileAction = getGeneratingSpawnAction(hFile);
assertThat(protoCompileAction.getArguments())
.contains(
String.format(
"--cpp_out=%s/external/bla",
getTargetConfiguration().getGenfilesFragment().toString()));
Artifact headerFile =
getDerivedArtifact(
PathFragment.create("external/bla/foo/bar.pb.h"),
targetConfig.getGenfilesDirectory(),
getOwnerForAspect(
getConfiguredTarget("@bla//foo:bar_proto"),
ruleClassProvider.getNativeAspectClass(BazelCcProtoAspect.class.getSimpleName()),
AspectParameters.EMPTY));
CcCompilationContext ccCompilationContext =
target.get(CcInfo.PROVIDER).getCcCompilationContext();
assertThat(ccCompilationContext.getDeclaredIncludeSrcs()).containsExactly(headerFile);
}
@Test
public void commandLineControlsOutputFileSuffixes() throws Exception {
getAnalysisMock()
.ccSupport()
.setupCcToolchainConfig(
mockToolsConfig,
CcToolchainConfig.builder()
.withFeatures(
CppRuleClasses.SUPPORTS_DYNAMIC_LINKER,
CppRuleClasses.SUPPORTS_INTERFACE_SHARED_LIBRARIES));
useConfiguration(
"--cc_proto_library_header_suffixes=.pb.h,.proto.h",
"--cc_proto_library_source_suffixes=.pb.cc,.pb.cc.meta");
scratch.file(
"x/BUILD",
"cc_proto_library(name = 'foo_cc_proto', deps = ['foo_proto'])",
"proto_library(name = 'foo_proto', srcs = ['foo.proto'])");
assertThat(prettyArtifactNames(getFilesToBuild(getConfiguredTarget("//x:foo_cc_proto"))))
.containsExactly("x/foo.pb.cc", "x/foo.pb.h", "x/foo.pb.cc.meta", "x/foo.proto.h",
"x/libfoo_proto.a", "x/libfoo_proto.ifso", "x/libfoo_proto.so");
}
// TODO(carmi): test blacklisted protos. I don't currently understand what's the wanted behavior.
@Test
public void generatedSourcesNotCoverageInstrumented() throws Exception {
useConfiguration("--collect_code_coverage", "--instrumentation_filter=.");
scratch.file(
"x/BUILD",
"cc_proto_library(name = 'foo_cc_proto', deps = ['foo_proto'])",
"proto_library(name = 'foo_proto', srcs = ['foo.proto'])");
ConfiguredTarget target = getConfiguredTarget("//x:foo_cc_proto");
List<CppCompileAction> compilationSteps =
actionsTestUtil()
.findTransitivePrerequisitesOf(
getFirstArtifactEndingWith(getFilesToBuild(target), ".a"), CppCompileAction.class);
List<String> options = compilationSteps.get(0).getCompilerOptions();
assertThat(options).doesNotContain("-fprofile-arcs");
assertThat(options).doesNotContain("-ftest-coverage");
}
}