bp2build/cc_library_conversion_test.go - SHIFTPHONES/android_build_soong - Gitiles

 // 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: "",
 }`
 )

 func TestCcLibraryBp2Build(t *testing.T) {
 	// b/191166471 disabled in sc-dev
 	t.Skip()
 	testCases := []struct {
 		description                        string
 		moduleTypeUnderTest                string
 		moduleTypeUnderTestFactory         android.ModuleFactory
 		moduleTypeUnderTestBp2BuildMutator func(android.TopDownMutatorContext)
 		bp                                 string
 		expectedBazelTargets               []string
 		filesystem                         map[string]string
 		dir                                string
 		depsMutators                       []android.RegisterMutatorFunc
 	}{
 		{
 			description:                        "cc_library - simple example",
 			moduleTypeUnderTest:                "cc_library",
 			moduleTypeUnderTestFactory:         cc.LibraryFactory,
 			moduleTypeUnderTestBp2BuildMutator: cc.CcLibraryBp2Build,
 			filesystem: map[string]string{
 				"android.cpp": "",
 				"darwin.cpp":  "",
 				// Refer to cc.headerExts for the supported header extensions in Soong.
 				"header.h":         "",
 				"header.hh":        "",
 				"header.hpp":       "",
 				"header.hxx":       "",
 				"header.h++":       "",
 				"header.inl":       "",
 				"header.inc":       "",
 				"header.ipp":       "",
 				"header.h.generic": "",
 				"impl.cpp":         "",
 				"linux.cpp":        "",
 				"x86.cpp":          "",
 				"x86_64.cpp":       "",
 				"foo-dir/a.h":      "",
 			},
 			bp: soongCcLibraryPreamble + `
 cc_library_headers { name: "some-headers" }
 cc_library {
     name: "foo-lib",
     srcs: ["impl.cpp"],
     cflags: ["-Wall"],
     header_libs: ["some-headers"],
     export_include_dirs: ["foo-dir"],
     ldflags: ["-Wl,--exclude-libs=bar.a"],
     arch: {
         x86: {
             ldflags: ["-Wl,--exclude-libs=baz.a"],
             srcs: ["x86.cpp"],
         },
         x86_64: {
             ldflags: ["-Wl,--exclude-libs=qux.a"],
             srcs: ["x86_64.cpp"],
         },
     },
     target: {
         android: {
             srcs: ["android.cpp"],
         },
         linux_glibc: {
             srcs: ["linux.cpp"],
         },
         darwin: {
             srcs: ["darwin.cpp"],
         },
     },
 }
 `,
 			expectedBazelTargets: []string{`cc_library(
     name = "foo-lib",
     copts = [
         "-Wall",
         "-I.",
     ],
     deps = [":some-headers"],
     includes = ["foo-dir"],
     linkopts = ["-Wl,--exclude-libs=bar.a"] + select({
         "//build/bazel/platforms/arch:x86": ["-Wl,--exclude-libs=baz.a"],
         "//build/bazel/platforms/arch:x86_64": ["-Wl,--exclude-libs=qux.a"],
         "//conditions:default": [],
     }),
     srcs = ["impl.cpp"] + select({
         "//build/bazel/platforms/arch:x86": ["x86.cpp"],
         "//build/bazel/platforms/arch:x86_64": ["x86_64.cpp"],
         "//conditions:default": [],
     }) + select({
         "//build/bazel/platforms/os:android": ["android.cpp"],
         "//build/bazel/platforms/os:darwin": ["darwin.cpp"],
         "//build/bazel/platforms/os:linux": ["linux.cpp"],
         "//conditions:default": [],
     }),
 )`},
 		},
 		{
 			description:                        "cc_library - trimmed example of //bionic/linker:ld-android",
 			moduleTypeUnderTest:                "cc_library",
 			moduleTypeUnderTestFactory:         cc.LibraryFactory,
 			moduleTypeUnderTestBp2BuildMutator: cc.CcLibraryBp2Build,
 			filesystem: map[string]string{
 				"ld-android.cpp":           "",
 				"linked_list.h":            "",
 				"linker.h":                 "",
 				"linker_block_allocator.h": "",
 				"linker_cfi.h":             "",
 			},
 			bp: soongCcLibraryPreamble + `
 cc_library_headers { name: "libc_headers" }
 cc_library {
     name: "fake-ld-android",
     srcs: ["ld_android.cpp"],
     cflags: [
         "-Wall",
         "-Wextra",
         "-Wunused",
         "-Werror",
     ],
     header_libs: ["libc_headers"],
     ldflags: [
         "-Wl,--exclude-libs=libgcc.a",
         "-Wl,--exclude-libs=libgcc_stripped.a",
         "-Wl,--exclude-libs=libclang_rt.builtins-arm-android.a",
         "-Wl,--exclude-libs=libclang_rt.builtins-aarch64-android.a",
         "-Wl,--exclude-libs=libclang_rt.builtins-i686-android.a",
         "-Wl,--exclude-libs=libclang_rt.builtins-x86_64-android.a",
     ],
     arch: {
         x86: {
             ldflags: ["-Wl,--exclude-libs=libgcc_eh.a"],
         },
         x86_64: {
             ldflags: ["-Wl,--exclude-libs=libgcc_eh.a"],
         },
     },
 }
 `,
 			expectedBazelTargets: []string{`cc_library(
     name = "fake-ld-android",
     copts = [
         "-Wall",
         "-Wextra",
         "-Wunused",
         "-Werror",
         "-I.",
     ],
     deps = [":libc_headers"],
     linkopts = [
         "-Wl,--exclude-libs=libgcc.a",
         "-Wl,--exclude-libs=libgcc_stripped.a",
         "-Wl,--exclude-libs=libclang_rt.builtins-arm-android.a",
         "-Wl,--exclude-libs=libclang_rt.builtins-aarch64-android.a",
         "-Wl,--exclude-libs=libclang_rt.builtins-i686-android.a",
         "-Wl,--exclude-libs=libclang_rt.builtins-x86_64-android.a",
     ] + select({
         "//build/bazel/platforms/arch:x86": ["-Wl,--exclude-libs=libgcc_eh.a"],
         "//build/bazel/platforms/arch:x86_64": ["-Wl,--exclude-libs=libgcc_eh.a"],
         "//conditions:default": [],
     }),
     srcs = ["ld_android.cpp"],
 )`},
 		},
 		{
 			description:                        "cc_library exclude_srcs - trimmed example of //external/arm-optimized-routines:libarm-optimized-routines-math",
 			moduleTypeUnderTest:                "cc_library",
 			moduleTypeUnderTestFactory:         cc.LibraryFactory,
 			moduleTypeUnderTestBp2BuildMutator: cc.CcLibraryBp2Build,
 			dir:                                "external",
 			filesystem: map[string]string{
 				"external/math/cosf.c":      "",
 				"external/math/erf.c":       "",
 				"external/math/erf_data.c":  "",
 				"external/math/erff.c":      "",
 				"external/math/erff_data.c": "",
 				"external/Android.bp": `
 cc_library {
     name: "fake-libarm-optimized-routines-math",
     exclude_srcs: [
         // Provided by:
         // bionic/libm/upstream-freebsd/lib/msun/src/s_erf.c
         // bionic/libm/upstream-freebsd/lib/msun/src/s_erff.c
         "math/erf.c",
         "math/erf_data.c",
         "math/erff.c",
         "math/erff_data.c",
     ],
     srcs: [
         "math/*.c",
     ],
     // arch-specific settings
     arch: {
         arm64: {
             cflags: [
                 "-DHAVE_FAST_FMA=1",
             ],
         },
     },
     bazel_module: { bp2build_available: true },
 }
 `,
 			},
 			bp: soongCcLibraryPreamble,
 			expectedBazelTargets: []string{`cc_library(
     name = "fake-libarm-optimized-routines-math",
     copts = ["-Iexternal"] + select({
         "//build/bazel/platforms/arch:arm64": ["-DHAVE_FAST_FMA=1"],
         "//conditions:default": [],
     }),
     srcs = ["math/cosf.c"],
 )`},
 		},
 		{
 			description:                        "cc_library shared/static props",
 			moduleTypeUnderTest:                "cc_library",
 			moduleTypeUnderTestFactory:         cc.LibraryFactory,
 			moduleTypeUnderTestBp2BuildMutator: cc.CcLibraryBp2Build,
 			depsMutators:                       []android.RegisterMutatorFunc{cc.RegisterDepsBp2Build},
 			dir:                                "foo/bar",
 			filesystem: map[string]string{
 				"foo/bar/both.cpp":       "",
 				"foo/bar/sharedonly.cpp": "",
 				"foo/bar/staticonly.cpp": "",
 				"foo/bar/Android.bp": `
 cc_library {
     name: "a",
     srcs: ["both.cpp"],
     cflags: ["bothflag"],
     shared_libs: ["shared_dep_for_both"],
     static_libs: ["static_dep_for_both"],
     whole_static_libs: ["whole_static_lib_for_both"],
     static: {
         srcs: ["staticonly.cpp"],
         cflags: ["staticflag"],
         shared_libs: ["shared_dep_for_static"],
         static_libs: ["static_dep_for_static"],
         whole_static_libs: ["whole_static_lib_for_static"],
     },
     shared: {
         srcs: ["sharedonly.cpp"],
         cflags: ["sharedflag"],
         shared_libs: ["shared_dep_for_shared"],
         static_libs: ["static_dep_for_shared"],
         whole_static_libs: ["whole_static_lib_for_shared"],
     },
     bazel_module: { bp2build_available: true },
 }

 cc_library_static { name: "static_dep_for_shared" }

 cc_library_static { name: "static_dep_for_static" }

 cc_library_static { name: "static_dep_for_both" }

 cc_library_static { name: "whole_static_lib_for_shared" }

 cc_library_static { name: "whole_static_lib_for_static" }

 cc_library_static { name: "whole_static_lib_for_both" }

 cc_library { name: "shared_dep_for_shared" }

 cc_library { name: "shared_dep_for_static" }

 cc_library { name: "shared_dep_for_both" }
 `,
 			},
 			bp: soongCcLibraryPreamble,
 			expectedBazelTargets: []string{`cc_library(
     name = "a",
     copts = [
         "bothflag",
         "-Ifoo/bar",
     ],
     deps = [":static_dep_for_both"],
     dynamic_deps = [":shared_dep_for_both"],
     dynamic_deps_for_shared = [":shared_dep_for_shared"],
     dynamic_deps_for_static = [":shared_dep_for_static"],
     shared_copts = ["sharedflag"],
     shared_srcs = ["sharedonly.cpp"],
     srcs = ["both.cpp"],
     static_copts = ["staticflag"],
     static_deps_for_shared = [":static_dep_for_shared"],
     static_deps_for_static = [":static_dep_for_static"],
     static_srcs = ["staticonly.cpp"],
     whole_archive_deps = [":whole_static_lib_for_both"],
     whole_archive_deps_for_shared = [":whole_static_lib_for_shared"],
     whole_archive_deps_for_static = [":whole_static_lib_for_static"],
 )`},
 		},
 		{
 			description:                        "cc_library non-configured version script",
 			moduleTypeUnderTest:                "cc_library",
 			moduleTypeUnderTestFactory:         cc.LibraryFactory,
 			moduleTypeUnderTestBp2BuildMutator: cc.CcLibraryBp2Build,
 			depsMutators:                       []android.RegisterMutatorFunc{cc.RegisterDepsBp2Build},
 			dir:                                "foo/bar",
 			filesystem: map[string]string{
 				"foo/bar/Android.bp": `
 cc_library {
     name: "a",
     srcs: ["a.cpp"],
     version_script: "v.map",
     bazel_module: { bp2build_available: true },
 }
 `,
 			},
 			bp: soongCcLibraryPreamble,
 			expectedBazelTargets: []string{`cc_library(
     name = "a",
     copts = ["-Ifoo/bar"],
     srcs = ["a.cpp"],
     version_script = "v.map",
 )`},
 		},
 		{
 			description:                        "cc_library configured version script",
 			moduleTypeUnderTest:                "cc_library",
 			moduleTypeUnderTestFactory:         cc.LibraryFactory,
 			moduleTypeUnderTestBp2BuildMutator: cc.CcLibraryBp2Build,
 			depsMutators:                       []android.RegisterMutatorFunc{cc.RegisterDepsBp2Build},
 			dir:                                "foo/bar",
 			filesystem: map[string]string{
 				"foo/bar/Android.bp": `
 		cc_library {
 		   name: "a",
 		   srcs: ["a.cpp"],
 		   arch: {
 		     arm: {
 		       version_script: "arm.map",
 		     },
 		     arm64: {
 		       version_script: "arm64.map",
 		     },
 		   },

 		   bazel_module: { bp2build_available: true },
 		}
 		`,
 			},
 			bp: soongCcLibraryPreamble,
 			expectedBazelTargets: []string{`cc_library(
     name = "a",
     copts = ["-Ifoo/bar"],
     srcs = ["a.cpp"],
     version_script = select({
         "//build/bazel/platforms/arch:arm": "arm.map",
         "//build/bazel/platforms/arch:arm64": "arm64.map",
         "//conditions:default": None,
     }),
 )`},
 		},
 		{
 			description:                        "cc_library shared_libs",
 			moduleTypeUnderTest:                "cc_library",
 			moduleTypeUnderTestFactory:         cc.LibraryFactory,
 			moduleTypeUnderTestBp2BuildMutator: cc.CcLibraryBp2Build,
 			depsMutators:                       []android.RegisterMutatorFunc{cc.RegisterDepsBp2Build},
 			dir:                                "foo/bar",
 			filesystem: map[string]string{
 				"foo/bar/Android.bp": `
 cc_library {
     name: "mylib",
     bazel_module: { bp2build_available: true },
 }

 cc_library {
     name: "a",
     shared_libs: ["mylib",],
     bazel_module: { bp2build_available: true },
 }
 `,
 			},
 			bp: soongCcLibraryPreamble,
 			expectedBazelTargets: []string{`cc_library(
     name = "a",
     copts = ["-Ifoo/bar"],
     dynamic_deps = [":mylib"],
 )`, `cc_library(
     name = "mylib",
     copts = ["-Ifoo/bar"],
 )`},
 		},
 		{
 			description:                        "cc_library pack_relocations test",
 			moduleTypeUnderTest:                "cc_library",
 			moduleTypeUnderTestFactory:         cc.LibraryFactory,
 			moduleTypeUnderTestBp2BuildMutator: cc.CcLibraryBp2Build,
 			depsMutators:                       []android.RegisterMutatorFunc{cc.RegisterDepsBp2Build},
 			dir:                                "foo/bar",
 			filesystem: map[string]string{
 				"foo/bar/Android.bp": `
 cc_library {
     name: "a",
     srcs: ["a.cpp"],
     pack_relocations: false,
     bazel_module: { bp2build_available: true },
 }

 cc_library {
     name: "b",
     srcs: ["b.cpp"],
     arch: {
         x86_64: {
 		pack_relocations: false,
 	},
     },
     bazel_module: { bp2build_available: true },
 }

 cc_library {
     name: "c",
     srcs: ["c.cpp"],
     target: {
         darwin: {
 		pack_relocations: false,
 	},
     },
     bazel_module: { bp2build_available: true },
 }`,
 			},
 			bp: soongCcLibraryPreamble,
 			expectedBazelTargets: []string{`cc_library(
     name = "a",
     copts = ["-Ifoo/bar"],
     linkopts = ["-Wl,--pack-dyn-relocs=none"],
     srcs = ["a.cpp"],
 )`, `cc_library(
     name = "b",
     copts = ["-Ifoo/bar"],
     linkopts = select({
         "//build/bazel/platforms/arch:x86_64": ["-Wl,--pack-dyn-relocs=none"],
         "//conditions:default": [],
     }),
     srcs = ["b.cpp"],
 )`, `cc_library(
     name = "c",
     copts = ["-Ifoo/bar"],
     linkopts = select({
         "//build/bazel/platforms/os:darwin": ["-Wl,--pack-dyn-relocs=none"],
         "//conditions:default": [],
     }),
     srcs = ["c.cpp"],
 )`},
 		},
 		{
 			description:                        "cc_library spaces in copts",
 			moduleTypeUnderTest:                "cc_library",
 			moduleTypeUnderTestFactory:         cc.LibraryFactory,
 			moduleTypeUnderTestBp2BuildMutator: cc.CcLibraryBp2Build,
 			depsMutators:                       []android.RegisterMutatorFunc{cc.RegisterDepsBp2Build},
 			dir:                                "foo/bar",
 			filesystem: map[string]string{
 				"foo/bar/Android.bp": `
 cc_library {
     name: "a",
     cflags: ["-include header.h",],
     bazel_module: { bp2build_available: true },
 }
 `,
 			},
 			bp: soongCcLibraryPreamble,
 			expectedBazelTargets: []string{`cc_library(
     name = "a",
     copts = [
         "-include",
         "header.h",
         "-Ifoo/bar",
     ],
 )`},
 		},
 		{
 			description:                        "cc_library cppflags goes into copts",
 			moduleTypeUnderTest:                "cc_library",
 			moduleTypeUnderTestFactory:         cc.LibraryFactory,
 			moduleTypeUnderTestBp2BuildMutator: cc.CcLibraryBp2Build,
 			depsMutators:                       []android.RegisterMutatorFunc{cc.RegisterDepsBp2Build},
 			dir:                                "foo/bar",
 			filesystem: map[string]string{
 				"foo/bar/Android.bp": `cc_library {
     name: "a",
     srcs: ["a.cpp"],
     cflags: [
 		"-Wall",
 	],
     cppflags: [
         "-fsigned-char",
         "-pedantic",
 	],
     arch: {
         arm64: {
             cppflags: ["-DARM64=1"],
 		},
 	},
     target: {
         android: {
             cppflags: ["-DANDROID=1"],
 		},
 	},
     bazel_module: { bp2build_available: true  },
 }
 `,
 			},
 			bp: soongCcLibraryPreamble,
 			expectedBazelTargets: []string{`cc_library(
     name = "a",
     copts = [
         "-Wall",
         "-fsigned-char",
         "-pedantic",
         "-Ifoo/bar",
     ] + select({
         "//build/bazel/platforms/arch:arm64": ["-DARM64=1"],
         "//conditions:default": [],
     }) + select({
         "//build/bazel/platforms/os:android": ["-DANDROID=1"],
         "//conditions:default": [],
     }),
     srcs = ["a.cpp"],
 )`},
 		},
 	}

 	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("cc_library_static", cc.LibraryStaticFactory)
 		ctx.RegisterModuleType("toolchain_library", cc.ToolchainLibraryFactory)
 		ctx.RegisterModuleType("cc_library_headers", cc.LibraryHeaderFactory)
 		ctx.RegisterModuleType(testCase.moduleTypeUnderTest, testCase.moduleTypeUnderTestFactory)
 		ctx.RegisterBp2BuildMutator(testCase.moduleTypeUnderTest, testCase.moduleTypeUnderTestBp2BuildMutator)
 		ctx.RegisterBp2BuildConfig(bp2buildConfig) // TODO(jingwen): make this the default for all tests
 		for _, m := range testCase.depsMutators {
 			ctx.DepsBp2BuildMutators(m)
 		}
 		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
 		}
 		codegenCtx := NewCodegenContext(config, *ctx.Context, Bp2Build)
 		bazelTargets := generateBazelTargetsForDir(codegenCtx, 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,
 					)
 				}
 			}
 		}
 	}
 }
	// 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: "",
	}`
	)

	func TestCcLibraryBp2Build(t *testing.T) {
	// b/191166471 disabled in sc-dev
	t.Skip()
	testCases := []struct {
	description string
	moduleTypeUnderTest string
	moduleTypeUnderTestFactory android.ModuleFactory
	moduleTypeUnderTestBp2BuildMutator func(android.TopDownMutatorContext)
	bp string
	expectedBazelTargets []string
	filesystem map[string]string
	dir string
	depsMutators []android.RegisterMutatorFunc
	}{
	{
	description: "cc_library - simple example",
	moduleTypeUnderTest: "cc_library",
	moduleTypeUnderTestFactory: cc.LibraryFactory,
	moduleTypeUnderTestBp2BuildMutator: cc.CcLibraryBp2Build,
	filesystem: map[string]string{
	"android.cpp": "",
	"darwin.cpp": "",
	// Refer to cc.headerExts for the supported header extensions in Soong.
	"header.h": "",
	"header.hh": "",
	"header.hpp": "",
	"header.hxx": "",
	"header.h++": "",
	"header.inl": "",
	"header.inc": "",
	"header.ipp": "",
	"header.h.generic": "",
	"impl.cpp": "",
	"linux.cpp": "",
	"x86.cpp": "",
	"x86_64.cpp": "",
	"foo-dir/a.h": "",
	},
	bp: soongCcLibraryPreamble + `
	cc_library_headers { name: "some-headers" }
	cc_library {
	name: "foo-lib",
	srcs: ["impl.cpp"],
	cflags: ["-Wall"],
	header_libs: ["some-headers"],
	export_include_dirs: ["foo-dir"],
	ldflags: ["-Wl,--exclude-libs=bar.a"],
	arch: {
	x86: {
	ldflags: ["-Wl,--exclude-libs=baz.a"],
	srcs: ["x86.cpp"],
	},
	x86_64: {
	ldflags: ["-Wl,--exclude-libs=qux.a"],
	srcs: ["x86_64.cpp"],
	},
	},
	target: {
	android: {
	srcs: ["android.cpp"],
	},
	linux_glibc: {
	srcs: ["linux.cpp"],
	},
	darwin: {
	srcs: ["darwin.cpp"],
	},
	},
	}
	`,
	expectedBazelTargets: []string{`cc_library(
	name = "foo-lib",
	copts = [
	"-Wall",
	"-I.",
	],
	deps = [":some-headers"],
	includes = ["foo-dir"],
	linkopts = ["-Wl,--exclude-libs=bar.a"] + select({
	"//build/bazel/platforms/arch:x86": ["-Wl,--exclude-libs=baz.a"],
	"//build/bazel/platforms/arch:x86_64": ["-Wl,--exclude-libs=qux.a"],
	"//conditions:default": [],
	}),
	srcs = ["impl.cpp"] + select({
	"//build/bazel/platforms/arch:x86": ["x86.cpp"],
	"//build/bazel/platforms/arch:x86_64": ["x86_64.cpp"],
	"//conditions:default": [],
	}) + select({
	"//build/bazel/platforms/os:android": ["android.cpp"],
	"//build/bazel/platforms/os:darwin": ["darwin.cpp"],
	"//build/bazel/platforms/os:linux": ["linux.cpp"],
	"//conditions:default": [],
	}),
	)`},
	},
	{
	description: "cc_library - trimmed example of //bionic/linker:ld-android",
	moduleTypeUnderTest: "cc_library",
	moduleTypeUnderTestFactory: cc.LibraryFactory,
	moduleTypeUnderTestBp2BuildMutator: cc.CcLibraryBp2Build,
	filesystem: map[string]string{
	"ld-android.cpp": "",
	"linked_list.h": "",
	"linker.h": "",
	"linker_block_allocator.h": "",
	"linker_cfi.h": "",
	},
	bp: soongCcLibraryPreamble + `
	cc_library_headers { name: "libc_headers" }
	cc_library {
	name: "fake-ld-android",
	srcs: ["ld_android.cpp"],
	cflags: [
	"-Wall",
	"-Wextra",
	"-Wunused",
	"-Werror",
	],
	header_libs: ["libc_headers"],
	ldflags: [
	"-Wl,--exclude-libs=libgcc.a",
	"-Wl,--exclude-libs=libgcc_stripped.a",
	"-Wl,--exclude-libs=libclang_rt.builtins-arm-android.a",
	"-Wl,--exclude-libs=libclang_rt.builtins-aarch64-android.a",
	"-Wl,--exclude-libs=libclang_rt.builtins-i686-android.a",
	"-Wl,--exclude-libs=libclang_rt.builtins-x86_64-android.a",
	],
	arch: {
	x86: {
	ldflags: ["-Wl,--exclude-libs=libgcc_eh.a"],
	},
	x86_64: {
	ldflags: ["-Wl,--exclude-libs=libgcc_eh.a"],
	},
	},
	}
	`,
	expectedBazelTargets: []string{`cc_library(
	name = "fake-ld-android",
	copts = [
	"-Wall",
	"-Wextra",
	"-Wunused",
	"-Werror",
	"-I.",
	],
	deps = [":libc_headers"],
	linkopts = [
	"-Wl,--exclude-libs=libgcc.a",
	"-Wl,--exclude-libs=libgcc_stripped.a",
	"-Wl,--exclude-libs=libclang_rt.builtins-arm-android.a",
	"-Wl,--exclude-libs=libclang_rt.builtins-aarch64-android.a",
	"-Wl,--exclude-libs=libclang_rt.builtins-i686-android.a",
	"-Wl,--exclude-libs=libclang_rt.builtins-x86_64-android.a",
	] + select({
	"//build/bazel/platforms/arch:x86": ["-Wl,--exclude-libs=libgcc_eh.a"],
	"//build/bazel/platforms/arch:x86_64": ["-Wl,--exclude-libs=libgcc_eh.a"],
	"//conditions:default": [],
	}),
	srcs = ["ld_android.cpp"],
	)`},
	},
	{
	description: "cc_library exclude_srcs - trimmed example of //external/arm-optimized-routines:libarm-optimized-routines-math",
	moduleTypeUnderTest: "cc_library",
	moduleTypeUnderTestFactory: cc.LibraryFactory,
	moduleTypeUnderTestBp2BuildMutator: cc.CcLibraryBp2Build,
	dir: "external",
	filesystem: map[string]string{
	"external/math/cosf.c": "",
	"external/math/erf.c": "",
	"external/math/erf_data.c": "",
	"external/math/erff.c": "",
	"external/math/erff_data.c": "",
	"external/Android.bp": `
	cc_library {
	name: "fake-libarm-optimized-routines-math",
	exclude_srcs: [
	// Provided by:
	// bionic/libm/upstream-freebsd/lib/msun/src/s_erf.c
	// bionic/libm/upstream-freebsd/lib/msun/src/s_erff.c
	"math/erf.c",
	"math/erf_data.c",
	"math/erff.c",
	"math/erff_data.c",
	],
	srcs: [
	"math/*.c",
	],
	// arch-specific settings
	arch: {
	arm64: {
	cflags: [
	"-DHAVE_FAST_FMA=1",
	],
	},
	},
	bazel_module: { bp2build_available: true },
	}
	`,
	},
	bp: soongCcLibraryPreamble,
	expectedBazelTargets: []string{`cc_library(
	name = "fake-libarm-optimized-routines-math",
	copts = ["-Iexternal"] + select({
	"//build/bazel/platforms/arch:arm64": ["-DHAVE_FAST_FMA=1"],
	"//conditions:default": [],
	}),
	srcs = ["math/cosf.c"],
	)`},
	},
	{
	description: "cc_library shared/static props",
	moduleTypeUnderTest: "cc_library",
	moduleTypeUnderTestFactory: cc.LibraryFactory,
	moduleTypeUnderTestBp2BuildMutator: cc.CcLibraryBp2Build,
	depsMutators: []android.RegisterMutatorFunc{cc.RegisterDepsBp2Build},
	dir: "foo/bar",
	filesystem: map[string]string{
	"foo/bar/both.cpp": "",
	"foo/bar/sharedonly.cpp": "",
	"foo/bar/staticonly.cpp": "",
	"foo/bar/Android.bp": `
	cc_library {
	name: "a",
	srcs: ["both.cpp"],
	cflags: ["bothflag"],
	shared_libs: ["shared_dep_for_both"],
	static_libs: ["static_dep_for_both"],
	whole_static_libs: ["whole_static_lib_for_both"],
	static: {
	srcs: ["staticonly.cpp"],
	cflags: ["staticflag"],
	shared_libs: ["shared_dep_for_static"],
	static_libs: ["static_dep_for_static"],
	whole_static_libs: ["whole_static_lib_for_static"],
	},
	shared: {
	srcs: ["sharedonly.cpp"],
	cflags: ["sharedflag"],
	shared_libs: ["shared_dep_for_shared"],
	static_libs: ["static_dep_for_shared"],
	whole_static_libs: ["whole_static_lib_for_shared"],
	},
	bazel_module: { bp2build_available: true },
	}

	cc_library_static { name: "static_dep_for_shared" }

	cc_library_static { name: "static_dep_for_static" }

	cc_library_static { name: "static_dep_for_both" }

	cc_library_static { name: "whole_static_lib_for_shared" }

	cc_library_static { name: "whole_static_lib_for_static" }

	cc_library_static { name: "whole_static_lib_for_both" }

	cc_library { name: "shared_dep_for_shared" }

	cc_library { name: "shared_dep_for_static" }

	cc_library { name: "shared_dep_for_both" }
	`,
	},
	bp: soongCcLibraryPreamble,
	expectedBazelTargets: []string{`cc_library(
	name = "a",
	copts = [
	"bothflag",
	"-Ifoo/bar",
	],
	deps = [":static_dep_for_both"],
	dynamic_deps = [":shared_dep_for_both"],
	dynamic_deps_for_shared = [":shared_dep_for_shared"],
	dynamic_deps_for_static = [":shared_dep_for_static"],
	shared_copts = ["sharedflag"],
	shared_srcs = ["sharedonly.cpp"],
	srcs = ["both.cpp"],
	static_copts = ["staticflag"],
	static_deps_for_shared = [":static_dep_for_shared"],
	static_deps_for_static = [":static_dep_for_static"],
	static_srcs = ["staticonly.cpp"],
	whole_archive_deps = [":whole_static_lib_for_both"],
	whole_archive_deps_for_shared = [":whole_static_lib_for_shared"],
	whole_archive_deps_for_static = [":whole_static_lib_for_static"],
	)`},
	},
	{
	description: "cc_library non-configured version script",
	moduleTypeUnderTest: "cc_library",
	moduleTypeUnderTestFactory: cc.LibraryFactory,
	moduleTypeUnderTestBp2BuildMutator: cc.CcLibraryBp2Build,
	depsMutators: []android.RegisterMutatorFunc{cc.RegisterDepsBp2Build},
	dir: "foo/bar",
	filesystem: map[string]string{
	"foo/bar/Android.bp": `
	cc_library {
	name: "a",
	srcs: ["a.cpp"],
	version_script: "v.map",
	bazel_module: { bp2build_available: true },
	}
	`,
	},
	bp: soongCcLibraryPreamble,
	expectedBazelTargets: []string{`cc_library(
	name = "a",
	copts = ["-Ifoo/bar"],
	srcs = ["a.cpp"],
	version_script = "v.map",
	)`},
	},
	{
	description: "cc_library configured version script",
	moduleTypeUnderTest: "cc_library",
	moduleTypeUnderTestFactory: cc.LibraryFactory,
	moduleTypeUnderTestBp2BuildMutator: cc.CcLibraryBp2Build,
	depsMutators: []android.RegisterMutatorFunc{cc.RegisterDepsBp2Build},
	dir: "foo/bar",
	filesystem: map[string]string{
	"foo/bar/Android.bp": `
	cc_library {
	name: "a",
	srcs: ["a.cpp"],
	arch: {
	arm: {
	version_script: "arm.map",
	},
	arm64: {
	version_script: "arm64.map",
	},
	},

	bazel_module: { bp2build_available: true },
	}
	`,
	},
	bp: soongCcLibraryPreamble,
	expectedBazelTargets: []string{`cc_library(
	name = "a",
	copts = ["-Ifoo/bar"],
	srcs = ["a.cpp"],
	version_script = select({
	"//build/bazel/platforms/arch:arm": "arm.map",
	"//build/bazel/platforms/arch:arm64": "arm64.map",
	"//conditions:default": None,
	}),
	)`},
	},
	{
	description: "cc_library shared_libs",
	moduleTypeUnderTest: "cc_library",
	moduleTypeUnderTestFactory: cc.LibraryFactory,
	moduleTypeUnderTestBp2BuildMutator: cc.CcLibraryBp2Build,
	depsMutators: []android.RegisterMutatorFunc{cc.RegisterDepsBp2Build},
	dir: "foo/bar",
	filesystem: map[string]string{
	"foo/bar/Android.bp": `
	cc_library {
	name: "mylib",
	bazel_module: { bp2build_available: true },
	}

	cc_library {
	name: "a",
	shared_libs: ["mylib",],
	bazel_module: { bp2build_available: true },
	}
	`,
	},
	bp: soongCcLibraryPreamble,
	expectedBazelTargets: []string{`cc_library(
	name = "a",
	copts = ["-Ifoo/bar"],
	dynamic_deps = [":mylib"],
	)`, `cc_library(
	name = "mylib",
	copts = ["-Ifoo/bar"],
	)`},
	},
	{
	description: "cc_library pack_relocations test",
	moduleTypeUnderTest: "cc_library",
	moduleTypeUnderTestFactory: cc.LibraryFactory,
	moduleTypeUnderTestBp2BuildMutator: cc.CcLibraryBp2Build,
	depsMutators: []android.RegisterMutatorFunc{cc.RegisterDepsBp2Build},
	dir: "foo/bar",
	filesystem: map[string]string{
	"foo/bar/Android.bp": `
	cc_library {
	name: "a",
	srcs: ["a.cpp"],
	pack_relocations: false,
	bazel_module: { bp2build_available: true },
	}

	cc_library {
	name: "b",
	srcs: ["b.cpp"],
	arch: {
	x86_64: {
	pack_relocations: false,
	},
	},
	bazel_module: { bp2build_available: true },
	}

	cc_library {
	name: "c",
	srcs: ["c.cpp"],
	target: {
	darwin: {
	pack_relocations: false,
	},
	},
	bazel_module: { bp2build_available: true },
	}`,
	},
	bp: soongCcLibraryPreamble,
	expectedBazelTargets: []string{`cc_library(
	name = "a",
	copts = ["-Ifoo/bar"],
	linkopts = ["-Wl,--pack-dyn-relocs=none"],
	srcs = ["a.cpp"],
	)`, `cc_library(
	name = "b",
	copts = ["-Ifoo/bar"],
	linkopts = select({
	"//build/bazel/platforms/arch:x86_64": ["-Wl,--pack-dyn-relocs=none"],
	"//conditions:default": [],
	}),
	srcs = ["b.cpp"],
	)`, `cc_library(
	name = "c",
	copts = ["-Ifoo/bar"],
	linkopts = select({
	"//build/bazel/platforms/os:darwin": ["-Wl,--pack-dyn-relocs=none"],
	"//conditions:default": [],
	}),
	srcs = ["c.cpp"],
	)`},
	},
	{
	description: "cc_library spaces in copts",
	moduleTypeUnderTest: "cc_library",
	moduleTypeUnderTestFactory: cc.LibraryFactory,
	moduleTypeUnderTestBp2BuildMutator: cc.CcLibraryBp2Build,
	depsMutators: []android.RegisterMutatorFunc{cc.RegisterDepsBp2Build},
	dir: "foo/bar",
	filesystem: map[string]string{
	"foo/bar/Android.bp": `
	cc_library {
	name: "a",
	cflags: ["-include header.h",],
	bazel_module: { bp2build_available: true },
	}
	`,
	},
	bp: soongCcLibraryPreamble,
	expectedBazelTargets: []string{`cc_library(
	name = "a",
	copts = [
	"-include",
	"header.h",
	"-Ifoo/bar",
	],
	)`},
	},
	{
	description: "cc_library cppflags goes into copts",
	moduleTypeUnderTest: "cc_library",
	moduleTypeUnderTestFactory: cc.LibraryFactory,
	moduleTypeUnderTestBp2BuildMutator: cc.CcLibraryBp2Build,
	depsMutators: []android.RegisterMutatorFunc{cc.RegisterDepsBp2Build},
	dir: "foo/bar",
	filesystem: map[string]string{
	"foo/bar/Android.bp": `cc_library {
	name: "a",
	srcs: ["a.cpp"],
	cflags: [
	"-Wall",
	],
	cppflags: [
	"-fsigned-char",
	"-pedantic",
	],
	arch: {
	arm64: {
	cppflags: ["-DARM64=1"],
	},
	},
	target: {
	android: {
	cppflags: ["-DANDROID=1"],
	},
	},
	bazel_module: { bp2build_available: true },
	}
	`,
	},
	bp: soongCcLibraryPreamble,
	expectedBazelTargets: []string{`cc_library(
	name = "a",
	copts = [
	"-Wall",
	"-fsigned-char",
	"-pedantic",
	"-Ifoo/bar",
	] + select({
	"//build/bazel/platforms/arch:arm64": ["-DARM64=1"],
	"//conditions:default": [],
	}) + select({
	"//build/bazel/platforms/os:android": ["-DANDROID=1"],
	"//conditions:default": [],
	}),
	srcs = ["a.cpp"],
	)`},
	},
	}

	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("cc_library_static", cc.LibraryStaticFactory)
	ctx.RegisterModuleType("toolchain_library", cc.ToolchainLibraryFactory)
	ctx.RegisterModuleType("cc_library_headers", cc.LibraryHeaderFactory)
	ctx.RegisterModuleType(testCase.moduleTypeUnderTest, testCase.moduleTypeUnderTestFactory)
	ctx.RegisterBp2BuildMutator(testCase.moduleTypeUnderTest, testCase.moduleTypeUnderTestBp2BuildMutator)
	ctx.RegisterBp2BuildConfig(bp2buildConfig) // TODO(jingwen): make this the default for all tests
	for _, m := range testCase.depsMutators {
	ctx.DepsBp2BuildMutators(m)
	}
	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
	}
	codegenCtx := NewCodegenContext(config, *ctx.Context, Bp2Build)
	bazelTargets := generateBazelTargetsForDir(codegenCtx, 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,
	)
	}
	}
	}
	}
	}