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Diffstat (limited to 'tests/system_properties_test.cpp')
| -rw-r--r-- | tests/system_properties_test.cpp | 364 |
1 files changed, 364 insertions, 0 deletions
diff --git a/tests/system_properties_test.cpp b/tests/system_properties_test.cpp new file mode 100644 index 0000000..0a8cfa5 --- /dev/null +++ b/tests/system_properties_test.cpp @@ -0,0 +1,364 @@ +/* + * 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_area__; + +struct LocalPropertyTestState { + LocalPropertyTestState() : valid(false) { + char dir_template[] = "/data/local/tmp/prop-XXXXXX"; + char *dirname = mkdtemp(dir_template); + if (!dirname) { + perror("making temp file for test state failed (is /data/local/tmp writable?)"); + return; + } + + old_pa = __system_property_area__; + __system_property_area__ = 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; + + __system_property_area__ = old_pa; + + __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; +}; + +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)); +} + +static void hierarchical_test_callback(const prop_info *pi, void *cookie) { + bool (*ok)[8][8] = static_cast<bool (*)[8][8]>(cookie); + + char name[PROP_NAME_MAX]; + char value[PROP_VALUE_MAX]; + + __system_property_read(pi, name, value); + + int name_i, name_j, name_k; + int value_i, value_j, value_k; + ASSERT_EQ(3, sscanf(name, "property_%d.%d.%d", &name_i, &name_j, &name_k)); + ASSERT_EQ(3, sscanf(value, "value_%d.%d.%d", &value_i, &value_j, &value_k)); + ASSERT_EQ(name_i, value_i); + ASSERT_GE(name_i, 0); + ASSERT_LT(name_i, 8); + ASSERT_EQ(name_j, value_j); + ASSERT_GE(name_j, 0); + ASSERT_LT(name_j, 8); + ASSERT_EQ(name_k, value_k); + ASSERT_GE(name_k, 0); + ASSERT_LT(name_k, 8); + + ok[name_i][name_j][name_k] = true; +} + +TEST(properties, fill_hierarchical) { + 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 ret; + + for (int i = 0; i < 8; i++) { + for (int j = 0; j < 8; j++) { + for (int k = 0; k < 8; k++) { + ret = snprintf(prop_name, PROP_NAME_MAX - 1, "property_%d.%d.%d", i, j, k); + memset(prop_name + ret, 'a', PROP_NAME_MAX - 1 - ret); + ret = snprintf(prop_value, PROP_VALUE_MAX - 1, "value_%d.%d.%d", i, j, k); + memset(prop_value + ret, 'b', PROP_VALUE_MAX - 1 - ret); + prop_name[PROP_NAME_MAX - 1] = 0; + prop_value[PROP_VALUE_MAX - 1] = 0; + + ASSERT_EQ(0, __system_property_add(prop_name, PROP_NAME_MAX - 1, prop_value, PROP_VALUE_MAX - 1)); + } + } + } + + for (int i = 0; i < 8; i++) { + for (int j = 0; j < 8; j++) { + for (int k = 0; k < 8; k++) { + ret = snprintf(prop_name, PROP_NAME_MAX - 1, "property_%d.%d.%d", i, j, k); + memset(prop_name + ret, 'a', PROP_NAME_MAX - 1 - ret); + ret = snprintf(prop_value, PROP_VALUE_MAX - 1, "value_%d.%d.%d", i, j, k); + 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)); + } + } + } + + bool ok[8][8][8]; + memset(ok, 0, sizeof(ok)); + __system_property_foreach(hierarchical_test_callback, ok); + + for (int i = 0; i < 8; i++) { + for (int j = 0; j < 8; j++) { + for (int k = 0; k < 8; k++) { + ASSERT_TRUE(ok[i][j][k]); + } + } + } +} + +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 |