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// Copyright 2020 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;
import static com.google.common.truth.Truth.assertThat;
import static org.junit.Assert.assertThrows;
import com.google.devtools.build.lib.analysis.util.BuildViewTestCase;
import java.io.IOException;
import net.starlark.java.eval.NoneType;
import net.starlark.java.eval.Sequence;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.runners.JUnit4;
/** Tests for C++ fragments in Starlark. */
@RunWith(JUnit4.class)
public final class CppConfigurationStarlarkTest extends BuildViewTestCase {
@Test
public void testMinimumOsVersion() throws Exception {
useConfiguration("--minimum_os_version=-wololoo");
writeRuleReturning("ctx.fragments.cpp.minimum_os_version()");
String result = (String) getConfiguredTarget("//foo:bar").get("result");
assertThat(result).isEqualTo("-wololoo");
}
@Test
public void testNullMinimumOsVersion() throws Exception {
writeRuleReturning("ctx.fragments.cpp.minimum_os_version()");
Object result = getConfiguredTarget("//foo:bar").get("result");
assertThat(result).isInstanceOf(NoneType.class);
}
@Test
public void testCopts() throws Exception {
writeRuleReturning("ctx.fragments.cpp.copts");
useConfiguration("--copt=-wololoo");
@SuppressWarnings("unchecked")
Sequence<String> result = (Sequence<String>) getConfiguredTarget("//foo:bar").get("result");
assertThat(result).containsExactly("-wololoo");
}
@Test
public void testCxxopts() throws Exception {
writeRuleReturning("ctx.fragments.cpp.cxxopts");
useConfiguration("--cxxopt=-wololoo");
@SuppressWarnings("unchecked")
Sequence<String> result = (Sequence<String>) getConfiguredTarget("//foo:bar").get("result");
assertThat(result).containsExactly("-wololoo");
}
@Test
public void testConlyopts() throws Exception {
writeRuleReturning("ctx.fragments.cpp.conlyopts");
useConfiguration("--conlyopt=-wololoo");
@SuppressWarnings("unchecked")
Sequence<String> result = (Sequence<String>) getConfiguredTarget("//foo:bar").get("result");
assertThat(result).containsExactly("-wololoo");
}
@Test
public void testObjcopts() throws Exception {
writeRuleReturning("ctx.fragments.cpp.objccopts");
useConfiguration("--objccopt=-wololoo");
@SuppressWarnings("unchecked")
Sequence<String> result = (Sequence<String>) getConfiguredTarget("//foo:bar").get("result");
assertThat(result).containsExactly("-wololoo");
}
@Test
public void testLinkopts() throws Exception {
writeRuleReturning("ctx.fragments.cpp.linkopts");
useConfiguration("--linkopt=-wololoo");
@SuppressWarnings("unchecked")
Sequence<String> result = (Sequence<String>) getConfiguredTarget("//foo:bar").get("result");
assertThat(result).containsExactly("-wololoo");
}
@Test
public void testExpandedApiBlocked() throws Exception {
writeRuleReturning("foo", "pic.bzl", "pic", "ctx.fragments.cpp.force_pic()");
writeRuleReturning("foo", "lcov.bzl", "lcov", "ctx.fragments.cpp.generate_llvm_lcov()");
writeRuleReturning("foo", "fdo.bzl", "fdo", "ctx.fragments.cpp.fdo_instrument()");
writeRuleReturning(
"foo", "hdr_deps.bzl", "hdr_deps", "ctx.fragments.cpp.process_headers_in_dependencies()");
writeRuleReturning("foo", "save.bzl", "save", "ctx.fragments.cpp.save_feature_state()");
writeRuleReturning(
"foo",
"fission.bzl",
"fission",
"ctx.fragments.cpp.fission_active_for_current_compilation_mode()");
AssertionError e;
e = assertThrows(AssertionError.class, () -> getConfiguredTarget("//foo:pic"));
assertThat(e).hasMessageThat().contains("Rule in 'foo' cannot use 'force_pic'");
e = assertThrows(AssertionError.class, () -> getConfiguredTarget("//foo:lcov"));
assertThat(e).hasMessageThat().contains("Rule in 'foo' cannot use 'generate_llvm_lcov'");
e = assertThrows(AssertionError.class, () -> getConfiguredTarget("//foo:fdo"));
assertThat(e).hasMessageThat().contains("Rule in 'foo' cannot use 'fdo_instrument'");
e = assertThrows(AssertionError.class, () -> getConfiguredTarget("//foo:hdr_deps"));
assertThat(e).hasMessageThat().contains("Rule in 'foo' cannot use private API");
e = assertThrows(AssertionError.class, () -> getConfiguredTarget("//foo:save"));
assertThat(e).hasMessageThat().contains("Rule in 'foo' cannot use private API");
e = assertThrows(AssertionError.class, () -> getConfiguredTarget("//foo:fission"));
assertThat(e)
.hasMessageThat()
.contains("Rule in 'foo' cannot use 'fission_active_for_current_compilation_mode'");
}
private void writeRuleReturning(String returns) throws IOException {
writeRuleReturning("foo", "lib.bzl", "bar", returns);
}
private void writeRuleReturning(String path, String lib, String target, String returns)
throws IOException {
scratch.file(
path + "/" + lib,
"def _impl(ctx):",
" return struct(",
" result = " + returns,
" )",
"foo = rule(implementation=_impl, fragments = ['cpp'])");
scratch.appendFile(
path + "/BUILD", "load(':" + lib + "', 'foo')", "foo(name='" + target + "')");
}
}