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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(__ANDROID__) && 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 // PROPERTY_VALUE_MAX.
     34 #include "cutils/properties.h"
     35 
     36 // Ability to have fake local system properties.
     37 #define _REALLY_INCLUDE_SYS__SYSTEM_PROPERTIES_H_
     38 #include <sys/_system_properties.h>
     39 
     40 extern void *__system_property_area__;
     41 
     42 struct LocalPropertyTestState {
     43     LocalPropertyTestState() : valid(false) {
     44         const char* ANDROID_DATA = getenv("ANDROID_DATA");
     45         char dir_template[PATH_MAX];
     46         snprintf(dir_template, sizeof(dir_template), "%s/local/tmp/prop-XXXXXX", ANDROID_DATA);
     47         char* dirname = mkdtemp(dir_template);
     48         if (!dirname) {
     49             fprintf(stderr, "making temp file for test state failed (is %s writable?): %s",
     50                     dir_template, strerror(errno));
     51             return;
     52         }
     53 
     54         old_pa = __system_property_area__;
     55         __system_property_area__ = NULL;
     56 
     57         pa_dirname = dirname;
     58         pa_filename = pa_dirname + "/__properties__";
     59 
     60         __system_property_set_filename(pa_filename.c_str());
     61         __system_property_area_init();
     62         valid = true;
     63     }
     64 
     65     ~LocalPropertyTestState() {
     66         if (!valid) {
     67             return;
     68         }
     69 
     70         __system_property_area__ = old_pa;
     71 
     72         __system_property_set_filename(PROP_FILENAME);
     73         unlink(pa_filename.c_str());
     74         rmdir(pa_dirname.c_str());
     75     }
     76 public:
     77     bool valid;
     78 private:
     79     std::string pa_dirname;
     80     std::string pa_filename;
     81     void *old_pa;
     82 };
     83 #endif
     84 
     85 namespace android {
     86 
     87 class JNIInvocationTest : public testing::Test {
     88 };
     89 
     90 #ifdef HAVE_TEST_STUFF
     91 static const char* kDebuggableSystemProperty = "ro.debuggable";
     92 static const char* kIsDebuggableValue = "1";
     93 static const char* kIsNotDebuggableValue = "0";
     94 
     95 static const char* kLibrarySystemProperty = "persist.sys.dalvik.vm.lib.2";
     96 static const char* kTestNonNull = "libartd.so";
     97 static const char* kTestNonNull2 = "libartd2.so";
     98 static const char* kExpected = "libart.so";
     99 #endif
    100 
    101 TEST_F(JNIInvocationTest, Debuggable) {
    102 #ifdef HAVE_TEST_STUFF
    103     LocalPropertyTestState pa;
    104     ASSERT_TRUE(pa.valid);
    105     ASSERT_EQ(0, __system_property_add(kDebuggableSystemProperty, 13, kIsDebuggableValue, 1));
    106     ASSERT_EQ(0, __system_property_add(kLibrarySystemProperty, 27, kTestNonNull2, 11));
    107 
    108     char buffer[PROPERTY_VALUE_MAX];
    109     const char* result = JniInvocation::GetLibrary(NULL, buffer);
    110     EXPECT_FALSE(result == NULL);
    111     if (result != NULL) {
    112         EXPECT_TRUE(strcmp(result, kTestNonNull2) == 0);
    113         EXPECT_FALSE(strcmp(result, kExpected) == 0);
    114     }
    115 
    116     result = JniInvocation::GetLibrary(kTestNonNull, buffer);
    117     EXPECT_FALSE(result == NULL);
    118     if (result != NULL) {
    119         EXPECT_TRUE(strcmp(result, kTestNonNull) == 0);
    120         EXPECT_FALSE(strcmp(result, kTestNonNull2) == 0);
    121     }
    122 #else
    123     GTEST_LOG_(WARNING) << "Host testing unsupported. Please run target tests.";
    124 #endif
    125 }
    126 
    127 TEST_F(JNIInvocationTest, NonDebuggable) {
    128 #ifdef HAVE_TEST_STUFF
    129     LocalPropertyTestState pa;
    130     ASSERT_TRUE(pa.valid);
    131     ASSERT_EQ(0, __system_property_add(kDebuggableSystemProperty, 13, kIsNotDebuggableValue, 1));
    132 
    133     char buffer[PROPERTY_VALUE_MAX];
    134     const char* result = JniInvocation::GetLibrary(NULL, buffer);
    135     EXPECT_FALSE(result == NULL);
    136     if (result != NULL) {
    137         EXPECT_TRUE(strcmp(result, kExpected) == 0);
    138         EXPECT_FALSE(strcmp(result, kTestNonNull) == 0);
    139         EXPECT_FALSE(strcmp(result, kTestNonNull2) == 0);
    140     }
    141 
    142     result = JniInvocation::GetLibrary(kTestNonNull, buffer);
    143     EXPECT_FALSE(result == NULL);
    144     if (result != NULL) {
    145         EXPECT_TRUE(strcmp(result, kExpected) == 0);
    146         EXPECT_FALSE(strcmp(result, kTestNonNull) == 0);
    147     }
    148 #else
    149     GTEST_LOG_(WARNING) << "Host testing unsupported. Please run target tests.";
    150 #endif
    151 }
    152 
    153 }  // namespace android
    154