Add cc_library_headers support to bp2build.
Test: Added cc_conversion_test.go.
Change-Id: Id4459d2c2fa02687a374cd9fb25d687e9678218c
diff --git a/bp2build/cc_conversion_test.go b/bp2build/cc_conversion_test.go
new file mode 100644
index 0000000..3cd3762
--- /dev/null
+++ b/bp2build/cc_conversion_test.go
@@ -0,0 +1,221 @@
+// Copyright 2021 Google Inc. 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 bp2build
+
+import (
+ "android/soong/android"
+ "android/soong/cc"
+ "strings"
+ "testing"
+)
+
+const (
+ // See cc/testing.go for more context
+ soongCcLibraryPreamble = `
+cc_defaults {
+ name: "linux_bionic_supported",
+}
+
+toolchain_library {
+ name: "libclang_rt.builtins-x86_64-android",
+ defaults: ["linux_bionic_supported"],
+ vendor_available: true,
+ vendor_ramdisk_available: true,
+ product_available: true,
+ recovery_available: true,
+ native_bridge_supported: true,
+ src: "",
+}
+
+toolchain_library {
+ name: "libatomic",
+ defaults: ["linux_bionic_supported"],
+ vendor_available: true,
+ vendor_ramdisk_available: true,
+ product_available: true,
+ recovery_available: true,
+ native_bridge_supported: true,
+ src: "",
+}`
+)
+
+func TestCcLibraryHeadersLoadStatement(t *testing.T) {
+ testCases := []struct {
+ bazelTargets BazelTargets
+ expectedLoadStatements string
+ }{
+ {
+ bazelTargets: BazelTargets{
+ BazelTarget{
+ name: "cc_library_headers_target",
+ ruleClass: "cc_library_headers",
+ // Note: no bzlLoadLocation for native rules
+ },
+ },
+ expectedLoadStatements: ``,
+ },
+ }
+
+ for _, testCase := range testCases {
+ actual := testCase.bazelTargets.LoadStatements()
+ expected := testCase.expectedLoadStatements
+ if actual != expected {
+ t.Fatalf("Expected load statements to be %s, got %s", expected, actual)
+ }
+ }
+
+}
+
+func TestCcLibraryHeadersBp2Build(t *testing.T) {
+ testCases := []struct {
+ description string
+ moduleTypeUnderTest string
+ moduleTypeUnderTestFactory android.ModuleFactory
+ moduleTypeUnderTestBp2BuildMutator func(android.TopDownMutatorContext)
+ preArchMutators []android.RegisterMutatorFunc
+ depsMutators []android.RegisterMutatorFunc
+ bp string
+ expectedBazelTargets []string
+ filesystem map[string]string
+ dir string
+ }{
+ {
+ description: "cc_library_headers test",
+ moduleTypeUnderTest: "cc_library_headers",
+ moduleTypeUnderTestFactory: cc.LibraryHeaderFactory,
+ moduleTypeUnderTestBp2BuildMutator: cc.CcLibraryHeadersBp2Build,
+ filesystem: map[string]string{
+ "lib-1/lib1a.h": "",
+ "lib-1/lib1b.h": "",
+ "lib-2/lib2a.h": "",
+ "lib-2/lib2b.h": "",
+ "dir-1/dir1a.h": "",
+ "dir-1/dir1b.h": "",
+ "dir-2/dir2a.h": "",
+ "dir-2/dir2b.h": "",
+ },
+ bp: soongCcLibraryPreamble + `
+cc_library_headers {
+ name: "lib-1",
+ export_include_dirs: ["lib-1"],
+ bazel_module: { bp2build_available: true },
+}
+
+cc_library_headers {
+ name: "lib-2",
+ export_include_dirs: ["lib-2"],
+ bazel_module: { bp2build_available: true },
+}
+
+cc_library_headers {
+ name: "foo_headers",
+ export_include_dirs: ["dir-1", "dir-2"],
+ header_libs: ["lib-1", "lib-2"],
+ export_header_lib_headers: ["lib-1", "lib-2"],
+ bazel_module: { bp2build_available: true },
+}`,
+ expectedBazelTargets: []string{`cc_library_headers(
+ name = "foo_headers",
+ deps = [
+ ":lib-1",
+ ":lib-2",
+ ],
+ hdrs = [
+ "dir-1/dir1a.h",
+ "dir-1/dir1b.h",
+ "dir-2/dir2a.h",
+ "dir-2/dir2b.h",
+ ],
+ includes = [
+ "dir-1",
+ "dir-2",
+ ],
+)`, `cc_library_headers(
+ name = "lib-1",
+ hdrs = [
+ "lib-1/lib1a.h",
+ "lib-1/lib1b.h",
+ ],
+ includes = [
+ "lib-1",
+ ],
+)`, `cc_library_headers(
+ name = "lib-2",
+ hdrs = [
+ "lib-2/lib2a.h",
+ "lib-2/lib2b.h",
+ ],
+ includes = [
+ "lib-2",
+ ],
+)`},
+ },
+ }
+
+ dir := "."
+ for _, testCase := range testCases {
+ filesystem := make(map[string][]byte)
+ toParse := []string{
+ "Android.bp",
+ }
+ for f, content := range testCase.filesystem {
+ if strings.HasSuffix(f, "Android.bp") {
+ toParse = append(toParse, f)
+ }
+ filesystem[f] = []byte(content)
+ }
+ config := android.TestConfig(buildDir, nil, testCase.bp, filesystem)
+ ctx := android.NewTestContext(config)
+
+ cc.RegisterCCBuildComponents(ctx)
+ ctx.RegisterModuleType("toolchain_library", cc.ToolchainLibraryFactory)
+
+ ctx.RegisterModuleType(testCase.moduleTypeUnderTest, testCase.moduleTypeUnderTestFactory)
+ for _, m := range testCase.depsMutators {
+ ctx.DepsBp2BuildMutators(m)
+ }
+ ctx.RegisterBp2BuildMutator(testCase.moduleTypeUnderTest, testCase.moduleTypeUnderTestBp2BuildMutator)
+ ctx.RegisterForBazelConversion()
+
+ _, errs := ctx.ParseFileList(dir, toParse)
+ if Errored(t, testCase.description, errs) {
+ continue
+ }
+ _, errs = ctx.ResolveDependencies(config)
+ if Errored(t, testCase.description, errs) {
+ continue
+ }
+
+ checkDir := dir
+ if testCase.dir != "" {
+ checkDir = testCase.dir
+ }
+ bazelTargets := GenerateBazelTargets(ctx.Context.Context, Bp2Build)[checkDir]
+ if actualCount, expectedCount := len(bazelTargets), len(testCase.expectedBazelTargets); actualCount != expectedCount {
+ t.Errorf("%s: Expected %d bazel target, got %d", testCase.description, expectedCount, actualCount)
+ } else {
+ for i, target := range bazelTargets {
+ if w, g := testCase.expectedBazelTargets[i], target.content; w != g {
+ t.Errorf(
+ "%s: Expected generated Bazel target to be '%s', got '%s'",
+ testCase.description,
+ w,
+ g,
+ )
+ }
+ }
+ }
+ }
+}