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      1 /*
      2  * Copyright (C) 2014 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 #define LOG_TAG "NativeBridge_test"
     18 
     19 #include <JniInvocation.h>
     20 #include <gtest/gtest.h>
     21 
     22 
     23 #include "string.h"
     24 
     25 #if defined(HAVE_ANDROID_OS) && defined(__BIONIC__)
     26 #define HAVE_TEST_STUFF 1
     27 #else
     28 #undef HAVE_TEST_STUFF
     29 #endif
     30 
     31 #ifdef HAVE_TEST_STUFF
     32 
     33 // Ability to have fake local system properties.
     34 #define _REALLY_INCLUDE_SYS__SYSTEM_PROPERTIES_H_
     35 #include <sys/_system_properties.h>
     36 
     37 extern void *__system_property_area__;
     38 
     39 struct LocalPropertyTestState {
     40     LocalPropertyTestState() : valid(false) {
     41         const char* ANDROID_DATA = getenv("ANDROID_DATA");
     42         char dir_template[PATH_MAX];
     43         snprintf(dir_template, sizeof(dir_template), "%s/local/tmp/prop-XXXXXX", ANDROID_DATA);
     44         char* dirname = mkdtemp(dir_template);
     45         if (!dirname) {
     46             fprintf(stderr, "making temp file for test state failed (is %s writable?): %s",
     47                     dir_template, strerror(errno));
     48             return;
     49         }
     50 
     51         old_pa = __system_property_area__;
     52         __system_property_area__ = NULL;
     53 
     54         pa_dirname = dirname;
     55         pa_filename = pa_dirname + "/__properties__";
     56 
     57         __system_property_set_filename(pa_filename.c_str());
     58         __system_property_area_init();
     59         valid = true;
     60     }
     61 
     62     ~LocalPropertyTestState() {
     63         if (!valid) {
     64             return;
     65         }
     66 
     67         __system_property_area__ = old_pa;
     68 
     69         __system_property_set_filename(PROP_FILENAME);
     70         unlink(pa_filename.c_str());
     71         rmdir(pa_dirname.c_str());
     72     }
     73 public:
     74     bool valid;
     75 private:
     76     std::string pa_dirname;
     77     std::string pa_filename;
     78     void *old_pa;
     79 };
     80 #endif
     81 
     82 namespace android {
     83 
     84 class JNIInvocationTest : public testing::Test {
     85 };
     86 
     87 #ifdef HAVE_TEST_STUFF
     88 static const char* kDebuggableSystemProperty = "ro.debuggable";
     89 static const char* kIsDebuggableValue = "1";
     90 static const char* kIsNotDebuggableValue = "0";
     91 
     92 static const char* kLibrarySystemProperty = "persist.sys.dalvik.vm.lib.2";
     93 static const char* kTestNonNull = "libartd.so";
     94 static const char* kTestNonNull2 = "libartd2.so";
     95 static const char* kExpected = "libart.so";
     96 #endif
     97 
     98 TEST_F(JNIInvocationTest, Debuggable) {
     99 #ifdef HAVE_TEST_STUFF
    100     LocalPropertyTestState pa;
    101     ASSERT_TRUE(pa.valid);
    102     ASSERT_EQ(0, __system_property_add(kDebuggableSystemProperty, 13, kIsDebuggableValue, 1));
    103     ASSERT_EQ(0, __system_property_add(kLibrarySystemProperty, 27, kTestNonNull2, 11));
    104 
    105     const char* result = JniInvocation::GetLibrary(NULL);
    106     EXPECT_FALSE(result == NULL);
    107     if (result != NULL) {
    108         EXPECT_TRUE(strcmp(result, kTestNonNull2) == 0);
    109         EXPECT_FALSE(strcmp(result, kExpected) == 0);
    110     }
    111 
    112     result = JniInvocation::GetLibrary(kTestNonNull);
    113     EXPECT_FALSE(result == NULL);
    114     if (result != NULL) {
    115         EXPECT_TRUE(strcmp(result, kTestNonNull) == 0);
    116         EXPECT_FALSE(strcmp(result, kTestNonNull2) == 0);
    117     }
    118 #endif
    119 }
    120 
    121 TEST_F(JNIInvocationTest, NonDebuggable) {
    122 #ifdef HAVE_TEST_STUFF
    123     LocalPropertyTestState pa;
    124     ASSERT_TRUE(pa.valid);
    125     ASSERT_EQ(0, __system_property_add(kDebuggableSystemProperty, 13, kIsNotDebuggableValue, 1));
    126 
    127     const char* result = JniInvocation::GetLibrary(NULL);
    128     EXPECT_FALSE(result == NULL);
    129     if (result != NULL) {
    130         EXPECT_TRUE(strcmp(result, kExpected) == 0);
    131         EXPECT_FALSE(strcmp(result, kTestNonNull) == 0);
    132         EXPECT_FALSE(strcmp(result, kTestNonNull2) == 0);
    133     }
    134 
    135     result = JniInvocation::GetLibrary(kTestNonNull);
    136     EXPECT_FALSE(result == NULL);
    137     if (result != NULL) {
    138         EXPECT_TRUE(strcmp(result, kExpected) == 0);
    139         EXPECT_FALSE(strcmp(result, kTestNonNull) == 0);
    140     }
    141 #endif
    142 }
    143 
    144 }  // namespace android
    145