Merge "Adding rust wrapper lib for libfakeServiceManager" into main (c753ca67) · Commits · e / os / platform_frameworks_native

libs/fakeservicemanager/Android.bp

+39 −0

Original line number	Diff line number	Diff line
		@@ -17,6 +17,7 @@ cc_defaults {
		shared_libs: [
		"libbinder",
		"libutils",
		"liblog",
		],
		target: {
		darwin: {
		@@ -40,3 +41,41 @@ cc_test_host {
		static_libs: ["libgmock"],
		local_include_dirs: ["include"],
		}

		rust_bindgen {
		name: "libfakeservicemanager_bindgen",
		crate_name: "fakeservicemanager_bindgen",
		host_supported: true,
		wrapper_src: "rust/wrappers/FakeServiceManagerWrapper.hpp",
		source_stem: "bindings",
		visibility: [":__subpackages__"],
		bindgen_flags: [
		"--allowlist-function",
		"setupFakeServiceManager",
		"--allowlist-function",
		"clearFakeServiceManager",
		],
		shared_libs: [
		"libc++",
		"libbinder",
		"libfakeservicemanager",
		],
		}

		rust_library {
		name: "libfakeservicemanager_rs",
		crate_name: "fakeservicemanager_rs",
		host_supported: true,
		srcs: [
		"rust/src/lib.rs",
		],
		shared_libs: [
		"libc++",
		"libfakeservicemanager",
		],
		rustlibs: [
		"libfakeservicemanager_bindgen",
		],
		lints: "none",
		clippy_lints: "none",
		}

libs/fakeservicemanager/FakeServiceManager.cpp

+25 −0

Original line number	Diff line number	Diff line
		@@ -16,6 +16,10 @@

		#include "fakeservicemanager/FakeServiceManager.h"

		using android::sp;
		using android::FakeServiceManager;
		using android::setDefaultServiceManager;

		namespace android {

		FakeServiceManager::FakeServiceManager() {}
		@@ -123,3 +127,24 @@ void FakeServiceManager::clear() {
		mNameToService.clear();
		}
		} // namespace android

		[[clang::no_destroy]] static sp<FakeServiceManager> gFakeServiceManager;
		[[clang::no_destroy]] static std::once_flag gSmOnce;

		extern "C" {

		// Setup FakeServiceManager to mock dependencies in test using this API for rust backend
		void setupFakeServiceManager() {
		/* Create a FakeServiceManager instance and add required services */
		std::call_once(gSmOnce, [&]() {
		gFakeServiceManager = new FakeServiceManager();
		android::setDefaultServiceManager(gFakeServiceManager);
		});
		}

		// Clear existing services from Fake SM for rust backend
		void clearFakeServiceManager() {
		LOG_ALWAYS_FATAL_IF(gFakeServiceManager == nullptr, "Fake Service Manager is not available. Forgot to call setupFakeServiceManager?");
		gFakeServiceManager->clear();
		}
		} //extern "C"
		No newline at end of file

libs/fakeservicemanager/rust/src/lib.rs

0 → 100644

+34 −0

Original line number	Diff line number	Diff line
		/*
		* Copyright (C) 2023 The Android Open Source Project
		*
		* 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.
		*/

		use fakeservicemanager_bindgen::{clearFakeServiceManager, setupFakeServiceManager};
		// Setup FakeServiceManager for testing and fuzzing purposes
		pub fn setup_fake_service_manager() {
		unsafe {
		// Safety: This API creates a new FakeSm object which will be always valid and sets up
		// defaultServiceManager
		setupFakeServiceManager();
		}
		}

		// Setup FakeServiceManager for testing and fuzzing purposes
		pub fn clear_fake_service_manager() {
		unsafe {
		// Safety: This API clears all registered services with Fake SM. This should be only used
		// setupFakeServiceManager is already called.
		clearFakeServiceManager();
		}
		}

libs/fakeservicemanager/rust/wrappers/FakeServiceManagerWrapper.hpp

0 → 100644

+25 −0

Original line number	Diff line number	Diff line
		/*
		* Copyright (C) 2023 The Android Open Source Project
		*
		* 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.
		*/

		#include "fakeservicemanager/FakeServiceManager.h"

		extern "C" {
		// Setup FakeServiceManager to mock dependencies in test using this API
		void setupFakeServiceManager();

		// Clear existing services from Fake SM.
		void clearFakeServiceManager();
		} // extern "C"

libs/fakeservicemanager/test_sm.cpp

+33 −3

Original line number	Diff line number	Diff line
		@@ -22,6 +22,7 @@
		#include <binder/IServiceManager.h>

		#include "fakeservicemanager/FakeServiceManager.h"
		#include "rust/wrappers/FakeServiceManagerWrapper.hpp"

		using android::sp;
		using android::BBinder;
		@@ -31,6 +32,7 @@ using android::status_t;
		using android::FakeServiceManager;
		using android::String16;
		using android::IServiceManager;
		using android::defaultServiceManager;
		using testing::ElementsAre;

		static sp<IBinder> getBinder() {
		@@ -83,7 +85,7 @@ TEST(GetService, HappyHappy) {
		EXPECT_EQ(sm->getService(String16("foo")), service);
		}

		TEST(GetService, NonExistant) {
		TEST(GetService, NonExistent) {
		auto sm = new FakeServiceManager();

		EXPECT_EQ(sm->getService(String16("foo")), nullptr);
		@@ -108,7 +110,7 @@ TEST(ListServices, AllServices) {
		String16("sd")));
		}

		TEST(WaitForService, NonExistant) {
		TEST(WaitForService, NonExistent) {
		auto sm = new FakeServiceManager();

		EXPECT_EQ(sm->waitForService(String16("foo")), nullptr);
		@@ -124,7 +126,7 @@ TEST(WaitForService, HappyHappy) {
		EXPECT_EQ(sm->waitForService(String16("foo")), service);
		}

		TEST(IsDeclared, NonExistant) {
		TEST(IsDeclared, NonExistent) {
		auto sm = new FakeServiceManager();

		EXPECT_FALSE(sm->isDeclared(String16("foo")));
		@@ -139,3 +141,31 @@ TEST(IsDeclared, HappyHappy) {

		EXPECT_TRUE(sm->isDeclared(String16("foo")));
		}

		TEST(SetupFakeServiceManager, NonExistent) {
		setupFakeServiceManager();

		EXPECT_EQ(defaultServiceManager()->getService(String16("foo")), nullptr);
		}

		TEST(SetupFakeServiceManager, GetExistingService) {
		setupFakeServiceManager();
		sp<IBinder> service = getBinder();

		EXPECT_EQ(defaultServiceManager()->addService(String16("foo"), service, false /allowIsolated/,
		IServiceManager::DUMP_FLAG_PRIORITY_DEFAULT), OK);

		EXPECT_EQ(defaultServiceManager()->getService(String16("foo")), service);
		clearFakeServiceManager();
		}

		TEST(ClearFakeServiceManager, GetServiceAfterClear) {
		setupFakeServiceManager();

		sp<IBinder> service = getBinder();
		EXPECT_EQ(defaultServiceManager()->addService(String16("foo"), service, false /allowIsolated/,
		IServiceManager::DUMP_FLAG_PRIORITY_DEFAULT), OK);

		clearFakeServiceManager();
		EXPECT_EQ(defaultServiceManager()->getService(String16("foo")), nullptr);
		}
		No newline at end of file