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      1 /*
      2  * Copyright (C) 2015 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 
     17 #include <gtest/gtest.h>
     18 
     19 #include <android-base/file.h>
     20 #include <android-base/test_utils.h>
     21 
     22 #include "dso.h"
     23 #include "environment.h"
     24 
     25 TEST(environment, GetCpusFromString) {
     26   ASSERT_EQ(GetCpusFromString(""), std::vector<int>());
     27   ASSERT_EQ(GetCpusFromString("0-2"), std::vector<int>({0, 1, 2}));
     28   ASSERT_EQ(GetCpusFromString("0,2-3"), std::vector<int>({0, 2, 3}));
     29   ASSERT_EQ(GetCpusFromString("1,0-3,3,4"), std::vector<int>({0, 1, 2, 3, 4}));
     30 }
     31 
     32 TEST(environment, PrepareVdsoFile) {
     33   std::string content;
     34   ASSERT_TRUE(android::base::ReadFileToString("/proc/self/maps", &content));
     35   if (content.find("[vdso]") == std::string::npos) {
     36     // Vdso isn't used, no need to test.
     37     return;
     38   }
     39   TemporaryDir tmpdir;
     40   ScopedTempFiles scoped_temp_files(tmpdir.path);
     41   PrepareVdsoFile();
     42   std::unique_ptr<Dso> dso = Dso::CreateDso(DSO_ELF_FILE, "[vdso]",
     43                                             sizeof(size_t) == sizeof(uint64_t));
     44   ASSERT_TRUE(dso != nullptr);
     45   ASSERT_NE(dso->GetDebugFilePath(), "[vdso]");
     46 }
     47