| /* |
| * Copyright (C) 2012 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 <errno.h> |
| #include <string.h> |
| |
| TEST(string, strerror) { |
| // Valid. |
| ASSERT_STREQ("Success", strerror(0)); |
| ASSERT_STREQ("Operation not permitted", strerror(1)); |
| |
| // Invalid. |
| ASSERT_STREQ("Unknown error 4294967295", strerror(-1)); |
| ASSERT_STREQ("Unknown error 1234", strerror(1234)); |
| } |
| |
| void* ConcurrentStrErrorFn(void* arg) { |
| bool equal = (strcmp("Unknown error 2002", strerror(2002)) == 0); |
| return reinterpret_cast<void*>(equal); |
| } |
| |
| #if __BIONIC__ // glibc's strerror isn't thread safe, only its strsignal. |
| TEST(string, strerror_concurrent) { |
| const char* strerror1001 = strerror(1001); |
| ASSERT_STREQ("Unknown error 1001", strerror1001); |
| |
| pthread_t t; |
| ASSERT_EQ(0, pthread_create(&t, NULL, ConcurrentStrErrorFn, NULL)); |
| void* result; |
| ASSERT_EQ(0, pthread_join(t, &result)); |
| ASSERT_TRUE(static_cast<bool>(result)); |
| |
| ASSERT_STREQ("Unknown error 1001", strerror1001); |
| } |
| #endif |
| |
| #if __BIONIC__ // glibc's strerror_r doesn't even have the same signature as the POSIX one. |
| TEST(string, strerror_r) { |
| char buf[256]; |
| |
| // Valid. |
| ASSERT_EQ(0, strerror_r(0, buf, sizeof(buf))); |
| ASSERT_STREQ("Success", buf); |
| ASSERT_EQ(0, strerror_r(1, buf, sizeof(buf))); |
| ASSERT_STREQ("Operation not permitted", buf); |
| |
| // Invalid. |
| ASSERT_EQ(0, strerror_r(-1, buf, sizeof(buf))); |
| ASSERT_STREQ("Unknown error 4294967295", buf); |
| ASSERT_EQ(0, strerror_r(1234, buf, sizeof(buf))); |
| ASSERT_STREQ("Unknown error 1234", buf); |
| |
| // Buffer too small. |
| ASSERT_EQ(-1, strerror_r(0, buf, 2)); |
| ASSERT_EQ(ERANGE, errno); |
| } |
| #endif |
| |
| TEST(string, strsignal) { |
| // A regular signal. |
| ASSERT_STREQ("Hangup", strsignal(1)); |
| |
| // A real-time signal. |
| #ifdef __GLIBC__ // glibc reserves real-time signals for internal use, and doesn't count those. |
| ASSERT_STREQ("Real-time signal 14", strsignal(48)); |
| #else |
| ASSERT_STREQ("Real-time signal 16", strsignal(48)); |
| #endif |
| |
| // Errors. |
| ASSERT_STREQ("Unknown signal -1", strsignal(-1)); // Too small. |
| ASSERT_STREQ("Unknown signal 0", strsignal(0)); // Still too small. |
| ASSERT_STREQ("Unknown signal 1234", strsignal(1234)); // Too large. |
| } |
| |
| void* ConcurrentStrSignalFn(void* arg) { |
| bool equal = (strcmp("Unknown signal 2002", strsignal(2002)) == 0); |
| return reinterpret_cast<void*>(equal); |
| } |
| |
| TEST(string, strsignal_concurrent) { |
| const char* strsignal1001 = strsignal(1001); |
| ASSERT_STREQ("Unknown signal 1001", strsignal1001); |
| |
| pthread_t t; |
| ASSERT_EQ(0, pthread_create(&t, NULL, ConcurrentStrSignalFn, NULL)); |
| void* result; |
| ASSERT_EQ(0, pthread_join(t, &result)); |
| ASSERT_TRUE(static_cast<bool>(result)); |
| |
| ASSERT_STREQ("Unknown signal 1001", strsignal1001); |
| } |