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/*
* Copyright (C) 2017 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 <functional>
#include <android-base/file.h>
#include <android-base/test_utils.h>
#include <gtest/gtest.h>
#include "action.h"
#include "builtins.h"
#include "import_parser.h"
#include "init_parser.h"
#include "keyword_map.h"
#include "util.h"
namespace android {
namespace init {
class TestFunctionMap : public KeywordMap<BuiltinFunction> {
public:
// Helper for argument-less functions
using BuiltinFunctionNoArgs = std::function<void(void)>;
void Add(const std::string& name, const BuiltinFunctionNoArgs function) {
Add(name, 0, 0, [function](const std::vector<std::string>&) {
function();
return 0;
});
}
void Add(const std::string& name, std::size_t min_parameters, std::size_t max_parameters,
const BuiltinFunction function) {
builtin_functions_[name] = make_tuple(min_parameters, max_parameters, function);
}
private:
Map builtin_functions_ = {};
const Map& map() const override { return builtin_functions_; }
};
using ActionManagerCommand = std::function<void(ActionManager&)>;
void TestInit(const std::string& init_script_file, const TestFunctionMap& test_function_map,
const std::vector<ActionManagerCommand>& commands) {
ActionManager am;
Action::set_function_map(&test_function_map);
Parser parser;
parser.AddSectionParser("on", std::make_unique<ActionParser>(&am));
parser.AddSectionParser("import", std::make_unique<ImportParser>(&parser));
ASSERT_TRUE(parser.ParseConfig(init_script_file));
for (const auto& command : commands) {
command(am);
}
while (am.HasMoreCommands()) {
am.ExecuteOneCommand();
}
}
void TestInitText(const std::string& init_script, const TestFunctionMap& test_function_map,
const std::vector<ActionManagerCommand>& commands) {
TemporaryFile tf;
ASSERT_TRUE(tf.fd != -1);
ASSERT_TRUE(android::base::WriteStringToFd(init_script, tf.fd));
TestInit(tf.path, test_function_map, commands);
}
TEST(init, SimpleEventTrigger) {
bool expect_true = false;
std::string init_script =
R"init(
on boot
pass_test
)init";
TestFunctionMap test_function_map;
test_function_map.Add("pass_test", [&expect_true]() { expect_true = true; });
ActionManagerCommand trigger_boot = [](ActionManager& am) { am.QueueEventTrigger("boot"); };
std::vector<ActionManagerCommand> commands{trigger_boot};
TestInitText(init_script, test_function_map, commands);
EXPECT_TRUE(expect_true);
}
TEST(init, EventTriggerOrder) {
std::string init_script =
R"init(
on boot
execute_first
on boot && property:ro.hardware=*
execute_second
on boot
execute_third
)init";
int num_executed = 0;
TestFunctionMap test_function_map;
test_function_map.Add("execute_first", [&num_executed]() { EXPECT_EQ(0, num_executed++); });
test_function_map.Add("execute_second", [&num_executed]() { EXPECT_EQ(1, num_executed++); });
test_function_map.Add("execute_third", [&num_executed]() { EXPECT_EQ(2, num_executed++); });
ActionManagerCommand trigger_boot = [](ActionManager& am) { am.QueueEventTrigger("boot"); };
std::vector<ActionManagerCommand> commands{trigger_boot};
TestInitText(init_script, test_function_map, commands);
}
TEST(init, EventTriggerOrderMultipleFiles) {
// 6 total files, which should have their triggers executed in the following order:
// 1: start - original script parsed
// 2: first_import - immediately imported by first_script
// 3: dir_a - file named 'a.rc' in dir; dir is imported after first_import
// 4: a_import - file imported by dir_a
// 5: dir_b - file named 'b.rc' in dir
// 6: last_import - imported after dir is imported
TemporaryFile first_import;
ASSERT_TRUE(first_import.fd != -1);
ASSERT_TRUE(android::base::WriteStringToFd("on boot\nexecute 2", first_import.fd));
TemporaryFile dir_a_import;
ASSERT_TRUE(dir_a_import.fd != -1);
ASSERT_TRUE(android::base::WriteStringToFd("on boot\nexecute 4", dir_a_import.fd));
TemporaryFile last_import;
ASSERT_TRUE(last_import.fd != -1);
ASSERT_TRUE(android::base::WriteStringToFd("on boot\nexecute 6", last_import.fd));
TemporaryDir dir;
// clang-format off
std::string dir_a_script = "import " + std::string(dir_a_import.path) + "\n"
"on boot\n"
"execute 3";
// clang-format on
// WriteFile() ensures the right mode is set
std::string err;
ASSERT_TRUE(WriteFile(std::string(dir.path) + "/a.rc", dir_a_script, &err));
ASSERT_TRUE(WriteFile(std::string(dir.path) + "/b.rc", "on boot\nexecute 5", &err));
// clang-format off
std::string start_script = "import " + std::string(first_import.path) + "\n"
"import " + std::string(dir.path) + "\n"
"import " + std::string(last_import.path) + "\n"
"on boot\n"
"execute 1";
// clang-format on
TemporaryFile start;
ASSERT_TRUE(android::base::WriteStringToFd(start_script, start.fd));
int num_executed = 0;
auto execute_command = [&num_executed](const std::vector<std::string>& args) {
EXPECT_EQ(2U, args.size());
EXPECT_EQ(++num_executed, std::stoi(args[1]));
return 0;
};
TestFunctionMap test_function_map;
test_function_map.Add("execute", 1, 1, execute_command);
ActionManagerCommand trigger_boot = [](ActionManager& am) { am.QueueEventTrigger("boot"); };
std::vector<ActionManagerCommand> commands{trigger_boot};
TestInit(start.path, test_function_map, commands);
EXPECT_EQ(6, num_executed);
}
} // namespace init
} // namespace android
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