tests/system_properties_test.cpp - platform/bionic - Git at Google

 /*
  * Copyright (C) 2013 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 <gtest/gtest.h>
 #include <sys/wait.h>
 #include <unistd.h>
 #include <string>

 #if __BIONIC__

 #define _REALLY_INCLUDE_SYS__SYSTEM_PROPERTIES_H_
 #include <sys/_system_properties.h>

 extern void *__system_property_regions__[PA_REGION_COUNT];

 struct LocalPropertyTestState {
     LocalPropertyTestState() : valid(false) {
         char dir_template[] = "/data/nativetest/prop-XXXXXX";
         char *dirname = mkdtemp(dir_template);
         if (!dirname) {
             perror("making temp file for test state failed (is /data/nativetest writable?)");
             return;
         }

         for (size_t i = 0; i < PA_REGION_COUNT; i++) {
             old_pa[i] = __system_property_regions__[i];
             __system_property_regions__[i] = NULL;
         }

         pa_dirname = dirname;
         pa_filename = pa_dirname + "/__properties__";

         __system_property_set_filename(pa_filename.c_str());
         __system_property_area_init();
         valid = true;
     }

     ~LocalPropertyTestState() {
         if (!valid)
             return;

         for (size_t i = 0; i < PA_REGION_COUNT; i++) {
             __system_property_regions__[i] = old_pa[i];
         }

         __system_property_set_filename(PROP_FILENAME);
         unlink(pa_filename.c_str());
         rmdir(pa_dirname.c_str());
     }
 public:
     bool valid;
 private:
     std::string pa_dirname;
     std::string pa_filename;
     void *old_pa[PA_REGION_COUNT];
 };

 TEST(properties, add) {
     LocalPropertyTestState pa;
     ASSERT_TRUE(pa.valid);

     char propvalue[PROP_VALUE_MAX];

     ASSERT_EQ(0, __system_property_add("property", 8, "value1", 6));
     ASSERT_EQ(0, __system_property_add("other_property", 14, "value2", 6));
     ASSERT_EQ(0, __system_property_add("property_other", 14, "value3", 6));

     ASSERT_EQ(6, __system_property_get("property", propvalue));
     ASSERT_STREQ(propvalue, "value1");

     ASSERT_EQ(6, __system_property_get("other_property", propvalue));
     ASSERT_STREQ(propvalue, "value2");

     ASSERT_EQ(6, __system_property_get("property_other", propvalue));
     ASSERT_STREQ(propvalue, "value3");
 }

 TEST(properties, update) {
     LocalPropertyTestState pa;
     ASSERT_TRUE(pa.valid);

     char propvalue[PROP_VALUE_MAX];
     prop_info *pi;

     ASSERT_EQ(0, __system_property_add("property", 8, "oldvalue1", 9));
     ASSERT_EQ(0, __system_property_add("other_property", 14, "value2", 6));
     ASSERT_EQ(0, __system_property_add("property_other", 14, "value3", 6));

     pi = (prop_info *)__system_property_find("property");
     ASSERT_NE((prop_info *)NULL, pi);
     __system_property_update(pi, "value4", 6);

     pi = (prop_info *)__system_property_find("other_property");
     ASSERT_NE((prop_info *)NULL, pi);
     __system_property_update(pi, "newvalue5", 9);

     pi = (prop_info *)__system_property_find("property_other");
     ASSERT_NE((prop_info *)NULL, pi);
     __system_property_update(pi, "value6", 6);

     ASSERT_EQ(6, __system_property_get("property", propvalue));
     ASSERT_STREQ(propvalue, "value4");

     ASSERT_EQ(9, __system_property_get("other_property", propvalue));
     ASSERT_STREQ(propvalue, "newvalue5");

     ASSERT_EQ(6, __system_property_get("property_other", propvalue));
     ASSERT_STREQ(propvalue, "value6");
 }

 TEST(properties, fill) {
     LocalPropertyTestState pa;
     ASSERT_TRUE(pa.valid);
     char prop_name[PROP_NAME_MAX];
     char prop_value[PROP_VALUE_MAX];
     char prop_value_ret[PROP_VALUE_MAX];
     int count = 0;
     int ret;

     while (true) {
         ret = snprintf(prop_name, PROP_NAME_MAX - 1, "property_%d", count);
         memset(prop_name + ret, 'a', PROP_NAME_MAX - 1 - ret);
         ret = snprintf(prop_value, PROP_VALUE_MAX - 1, "value_%d", count);
         memset(prop_value + ret, 'b', PROP_VALUE_MAX - 1 - ret);
         prop_name[PROP_NAME_MAX - 1] = 0;
         prop_value[PROP_VALUE_MAX - 1] = 0;

         ret = __system_property_add(prop_name, PROP_NAME_MAX - 1, prop_value, PROP_VALUE_MAX - 1);
         if (ret < 0)
             break;

         count++;
     }

     // For historical reasons at least 247 properties must be supported
     ASSERT_GE(count, 247);

     for (int i = 0; i < count; i++) {
         ret = snprintf(prop_name, PROP_NAME_MAX - 1, "property_%d", i);
         memset(prop_name + ret, 'a', PROP_NAME_MAX - 1 - ret);
         ret = snprintf(prop_value, PROP_VALUE_MAX - 1, "value_%d", i);
         memset(prop_value + ret, 'b', PROP_VALUE_MAX - 1 - ret);
         prop_name[PROP_NAME_MAX - 1] = 0;
         prop_value[PROP_VALUE_MAX - 1] = 0;
         memset(prop_value_ret, '\0', PROP_VALUE_MAX);

         ASSERT_EQ(PROP_VALUE_MAX - 1, __system_property_get(prop_name, prop_value_ret));
         ASSERT_EQ(0, memcmp(prop_value, prop_value_ret, PROP_VALUE_MAX));
     }
 }

 static void foreach_test_callback(const prop_info *pi, void* cookie) {
     size_t *count = static_cast<size_t *>(cookie);

     ASSERT_NE((prop_info *)NULL, pi);
     (*count)++;
 }

 TEST(properties, foreach) {
     LocalPropertyTestState pa;
     ASSERT_TRUE(pa.valid);
     size_t count = 0;

     ASSERT_EQ(0, __system_property_add("property", 8, "value1", 6));
     ASSERT_EQ(0, __system_property_add("other_property", 14, "value2", 6));
     ASSERT_EQ(0, __system_property_add("property_other", 14, "value3", 6));

     ASSERT_EQ(0, __system_property_foreach(foreach_test_callback, &count));
     ASSERT_EQ(3U, count);
 }

 TEST(properties, find_nth) {
     LocalPropertyTestState pa;
     ASSERT_TRUE(pa.valid);

     ASSERT_EQ(0, __system_property_add("property", 8, "value1", 6));
     ASSERT_EQ(0, __system_property_add("other_property", 14, "value2", 6));
     ASSERT_EQ(0, __system_property_add("property_other", 14, "value3", 6));

     ASSERT_NE((const prop_info *)NULL, __system_property_find_nth(0));
     ASSERT_NE((const prop_info *)NULL, __system_property_find_nth(1));
     ASSERT_NE((const prop_info *)NULL, __system_property_find_nth(2));

     ASSERT_EQ((const prop_info *)NULL, __system_property_find_nth(3));
     ASSERT_EQ((const prop_info *)NULL, __system_property_find_nth(4));
     ASSERT_EQ((const prop_info *)NULL, __system_property_find_nth(5));
     ASSERT_EQ((const prop_info *)NULL, __system_property_find_nth(100));
     ASSERT_EQ((const prop_info *)NULL, __system_property_find_nth(200));
     ASSERT_EQ((const prop_info *)NULL, __system_property_find_nth(247));
 }

 TEST(properties, errors) {
     LocalPropertyTestState pa;
     ASSERT_TRUE(pa.valid);
     char prop_value[PROP_NAME_MAX];

     ASSERT_EQ(0, __system_property_add("property", 8, "value1", 6));
     ASSERT_EQ(0, __system_property_add("other_property", 14, "value2", 6));
     ASSERT_EQ(0, __system_property_add("property_other", 14, "value3", 6));

     ASSERT_EQ(0, __system_property_find("property1"));
     ASSERT_EQ(0, __system_property_get("property1", prop_value));

     ASSERT_EQ(-1, __system_property_add("name", PROP_NAME_MAX, "value", 5));
     ASSERT_EQ(-1, __system_property_add("name", 4, "value", PROP_VALUE_MAX));
     ASSERT_EQ(-1, __system_property_update(NULL, "value", PROP_VALUE_MAX));
 }

 TEST(properties, serial) {
     LocalPropertyTestState pa;
     ASSERT_TRUE(pa.valid);
     const prop_info *pi;
     unsigned int serial;

     ASSERT_EQ(0, __system_property_add("property", 8, "value1", 6));
     ASSERT_NE((const prop_info *)NULL, pi = __system_property_find("property"));
     serial = __system_property_serial(pi);
     ASSERT_EQ(0, __system_property_update((prop_info *)pi, "value2", 6));
     ASSERT_NE(serial, __system_property_serial(pi));
 }

 static void *PropertyWaitHelperFn(void *arg)
 {
     int *flag = (int *)arg;
     prop_info *pi;
     pi = (prop_info *)__system_property_find("property");
     usleep(100000);

     *flag = 1;
     __system_property_update(pi, "value3", 6);

     return NULL;
 }

 TEST(properties, wait) {
     LocalPropertyTestState pa;
     ASSERT_TRUE(pa.valid);
     unsigned int serial;
     prop_info *pi;
     pthread_t t;
     int flag = 0;

     ASSERT_EQ(0, __system_property_add("property", 8, "value1", 6));
     serial = __system_property_wait_any(0);
     pi = (prop_info *)__system_property_find("property");
     ASSERT_NE((prop_info *)NULL, pi);
     __system_property_update(pi, "value2", 6);
     serial = __system_property_wait_any(serial);

     ASSERT_EQ(0, pthread_create(&t, NULL, PropertyWaitHelperFn, &flag));
     ASSERT_EQ(flag, 0);
     serial = __system_property_wait_any(serial);
     ASSERT_EQ(flag, 1);

     void* result;
     ASSERT_EQ(0, pthread_join(t, &result));
 }

 class KilledByFault {
     public:
         explicit KilledByFault() {};
         bool operator()(int exit_status) const;
 };

 bool KilledByFault::operator()(int exit_status) const {
     return WIFSIGNALED(exit_status) &&
         (WTERMSIG(exit_status) == SIGSEGV ||
          WTERMSIG(exit_status) == SIGBUS ||
          WTERMSIG(exit_status) == SIGABRT);
 }

 TEST(properties_DeathTest, read_only) {
       ::testing::FLAGS_gtest_death_test_style = "threadsafe";
       ASSERT_EXIT(__system_property_add("property", 8, "value", 5),
                   KilledByFault(), "");
 }
 #endif
	/*
	* Copyright (C) 2013 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 <gtest/gtest.h>
	#include <sys/wait.h>
	#include <unistd.h>
	#include <string>

	#if __BIONIC__

	#define _REALLY_INCLUDE_SYS__SYSTEM_PROPERTIES_H_
	#include <sys/_system_properties.h>

	extern void *__system_property_regions__[PA_REGION_COUNT];

	struct LocalPropertyTestState {
	LocalPropertyTestState() : valid(false) {
	char dir_template[] = "/data/nativetest/prop-XXXXXX";
	char *dirname = mkdtemp(dir_template);
	if (!dirname) {
	perror("making temp file for test state failed (is /data/nativetest writable?)");
	return;
	}

	for (size_t i = 0; i < PA_REGION_COUNT; i++) {
	old_pa[i] = __system_property_regions__[i];
	__system_property_regions__[i] = NULL;
	}

	pa_dirname = dirname;
	pa_filename = pa_dirname + "/__properties__";

	__system_property_set_filename(pa_filename.c_str());
	__system_property_area_init();
	valid = true;
	}

	~LocalPropertyTestState() {
	if (!valid)
	return;

	for (size_t i = 0; i < PA_REGION_COUNT; i++) {
	__system_property_regions__[i] = old_pa[i];
	}

	__system_property_set_filename(PROP_FILENAME);
	unlink(pa_filename.c_str());
	rmdir(pa_dirname.c_str());
	}
	public:
	bool valid;
	private:
	std::string pa_dirname;
	std::string pa_filename;
	void *old_pa[PA_REGION_COUNT];
	};

	TEST(properties, add) {
	LocalPropertyTestState pa;
	ASSERT_TRUE(pa.valid);

	char propvalue[PROP_VALUE_MAX];

	ASSERT_EQ(0, __system_property_add("property", 8, "value1", 6));
	ASSERT_EQ(0, __system_property_add("other_property", 14, "value2", 6));
	ASSERT_EQ(0, __system_property_add("property_other", 14, "value3", 6));

	ASSERT_EQ(6, __system_property_get("property", propvalue));
	ASSERT_STREQ(propvalue, "value1");

	ASSERT_EQ(6, __system_property_get("other_property", propvalue));
	ASSERT_STREQ(propvalue, "value2");

	ASSERT_EQ(6, __system_property_get("property_other", propvalue));
	ASSERT_STREQ(propvalue, "value3");
	}

	TEST(properties, update) {
	LocalPropertyTestState pa;
	ASSERT_TRUE(pa.valid);

	char propvalue[PROP_VALUE_MAX];
	prop_info *pi;

	ASSERT_EQ(0, __system_property_add("property", 8, "oldvalue1", 9));
	ASSERT_EQ(0, __system_property_add("other_property", 14, "value2", 6));
	ASSERT_EQ(0, __system_property_add("property_other", 14, "value3", 6));

	pi = (prop_info *)__system_property_find("property");
	ASSERT_NE((prop_info *)NULL, pi);
	__system_property_update(pi, "value4", 6);

	pi = (prop_info *)__system_property_find("other_property");
	ASSERT_NE((prop_info *)NULL, pi);
	__system_property_update(pi, "newvalue5", 9);

	pi = (prop_info *)__system_property_find("property_other");
	ASSERT_NE((prop_info *)NULL, pi);
	__system_property_update(pi, "value6", 6);

	ASSERT_EQ(6, __system_property_get("property", propvalue));
	ASSERT_STREQ(propvalue, "value4");

	ASSERT_EQ(9, __system_property_get("other_property", propvalue));
	ASSERT_STREQ(propvalue, "newvalue5");

	ASSERT_EQ(6, __system_property_get("property_other", propvalue));
	ASSERT_STREQ(propvalue, "value6");
	}

	TEST(properties, fill) {
	LocalPropertyTestState pa;
	ASSERT_TRUE(pa.valid);
	char prop_name[PROP_NAME_MAX];
	char prop_value[PROP_VALUE_MAX];
	char prop_value_ret[PROP_VALUE_MAX];
	int count = 0;
	int ret;

	while (true) {
	ret = snprintf(prop_name, PROP_NAME_MAX - 1, "property_%d", count);
	memset(prop_name + ret, 'a', PROP_NAME_MAX - 1 - ret);
	ret = snprintf(prop_value, PROP_VALUE_MAX - 1, "value_%d", count);
	memset(prop_value + ret, 'b', PROP_VALUE_MAX - 1 - ret);
	prop_name[PROP_NAME_MAX - 1] = 0;
	prop_value[PROP_VALUE_MAX - 1] = 0;

	ret = __system_property_add(prop_name, PROP_NAME_MAX - 1, prop_value, PROP_VALUE_MAX - 1);
	if (ret < 0)
	break;

	count++;
	}

	// For historical reasons at least 247 properties must be supported
	ASSERT_GE(count, 247);

	for (int i = 0; i < count; i++) {
	ret = snprintf(prop_name, PROP_NAME_MAX - 1, "property_%d", i);
	memset(prop_name + ret, 'a', PROP_NAME_MAX - 1 - ret);
	ret = snprintf(prop_value, PROP_VALUE_MAX - 1, "value_%d", i);
	memset(prop_value + ret, 'b', PROP_VALUE_MAX - 1 - ret);
	prop_name[PROP_NAME_MAX - 1] = 0;
	prop_value[PROP_VALUE_MAX - 1] = 0;
	memset(prop_value_ret, '\0', PROP_VALUE_MAX);

	ASSERT_EQ(PROP_VALUE_MAX - 1, __system_property_get(prop_name, prop_value_ret));
	ASSERT_EQ(0, memcmp(prop_value, prop_value_ret, PROP_VALUE_MAX));
	}
	}

	static void foreach_test_callback(const prop_info pi, void cookie) {
	size_t count = static_cast<size_t >(cookie);

	ASSERT_NE((prop_info *)NULL, pi);
	(*count)++;
	}

	TEST(properties, foreach) {
	LocalPropertyTestState pa;
	ASSERT_TRUE(pa.valid);
	size_t count = 0;

	ASSERT_EQ(0, __system_property_add("property", 8, "value1", 6));
	ASSERT_EQ(0, __system_property_add("other_property", 14, "value2", 6));
	ASSERT_EQ(0, __system_property_add("property_other", 14, "value3", 6));

	ASSERT_EQ(0, __system_property_foreach(foreach_test_callback, &count));
	ASSERT_EQ(3U, count);
	}

	TEST(properties, find_nth) {
	LocalPropertyTestState pa;
	ASSERT_TRUE(pa.valid);

	ASSERT_EQ(0, __system_property_add("property", 8, "value1", 6));
	ASSERT_EQ(0, __system_property_add("other_property", 14, "value2", 6));
	ASSERT_EQ(0, __system_property_add("property_other", 14, "value3", 6));

	ASSERT_NE((const prop_info *)NULL, __system_property_find_nth(0));
	ASSERT_NE((const prop_info *)NULL, __system_property_find_nth(1));
	ASSERT_NE((const prop_info *)NULL, __system_property_find_nth(2));

	ASSERT_EQ((const prop_info *)NULL, __system_property_find_nth(3));
	ASSERT_EQ((const prop_info *)NULL, __system_property_find_nth(4));
	ASSERT_EQ((const prop_info *)NULL, __system_property_find_nth(5));
	ASSERT_EQ((const prop_info *)NULL, __system_property_find_nth(100));
	ASSERT_EQ((const prop_info *)NULL, __system_property_find_nth(200));
	ASSERT_EQ((const prop_info *)NULL, __system_property_find_nth(247));
	}

	TEST(properties, errors) {
	LocalPropertyTestState pa;
	ASSERT_TRUE(pa.valid);
	char prop_value[PROP_NAME_MAX];

	ASSERT_EQ(0, __system_property_add("property", 8, "value1", 6));
	ASSERT_EQ(0, __system_property_add("other_property", 14, "value2", 6));
	ASSERT_EQ(0, __system_property_add("property_other", 14, "value3", 6));

	ASSERT_EQ(0, __system_property_find("property1"));
	ASSERT_EQ(0, __system_property_get("property1", prop_value));

	ASSERT_EQ(-1, __system_property_add("name", PROP_NAME_MAX, "value", 5));
	ASSERT_EQ(-1, __system_property_add("name", 4, "value", PROP_VALUE_MAX));
	ASSERT_EQ(-1, __system_property_update(NULL, "value", PROP_VALUE_MAX));
	}

	TEST(properties, serial) {
	LocalPropertyTestState pa;
	ASSERT_TRUE(pa.valid);
	const prop_info *pi;
	unsigned int serial;

	ASSERT_EQ(0, __system_property_add("property", 8, "value1", 6));
	ASSERT_NE((const prop_info *)NULL, pi = __system_property_find("property"));
	serial = __system_property_serial(pi);
	ASSERT_EQ(0, __system_property_update((prop_info *)pi, "value2", 6));
	ASSERT_NE(serial, __system_property_serial(pi));
	}

	static void PropertyWaitHelperFn(void arg)
	{
	int flag = (int )arg;
	prop_info *pi;
	pi = (prop_info *)__system_property_find("property");
	usleep(100000);

	*flag = 1;
	__system_property_update(pi, "value3", 6);

	return NULL;
	}

	TEST(properties, wait) {
	LocalPropertyTestState pa;
	ASSERT_TRUE(pa.valid);
	unsigned int serial;
	prop_info *pi;
	pthread_t t;
	int flag = 0;

	ASSERT_EQ(0, __system_property_add("property", 8, "value1", 6));
	serial = __system_property_wait_any(0);
	pi = (prop_info *)__system_property_find("property");
	ASSERT_NE((prop_info *)NULL, pi);
	__system_property_update(pi, "value2", 6);
	serial = __system_property_wait_any(serial);

	ASSERT_EQ(0, pthread_create(&t, NULL, PropertyWaitHelperFn, &flag));
	ASSERT_EQ(flag, 0);
	serial = __system_property_wait_any(serial);
	ASSERT_EQ(flag, 1);

	void* result;
	ASSERT_EQ(0, pthread_join(t, &result));
	}

	class KilledByFault {
	public:
	explicit KilledByFault() {};
	bool operator()(int exit_status) const;
	};

	bool KilledByFault::operator()(int exit_status) const {
	return WIFSIGNALED(exit_status) &&
	(WTERMSIG(exit_status) == SIGSEGV \|\|
	WTERMSIG(exit_status) == SIGBUS \|\|
	WTERMSIG(exit_status) == SIGABRT);
	}

	TEST(properties_DeathTest, read_only) {
	::testing::FLAGS_gtest_death_test_style = "threadsafe";
	ASSERT_EXIT(__system_property_add("property", 8, "value", 5),
	KilledByFault(), "");
	}
	#endif