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chromium / chromium / src / f3b599b9922b753585ed5bc6be9fe40dbea60ad0 / . / base / native_library_unittest.cc
blob: 320442bdd11febe0551d4d6cfec97ed4f9ce3318 [file] [log] [blame]
xhwang6a01b392015-11-10 07:48:30[diff] [blame]1// Copyright 2015 The Chromium Authors. All rights reserved.
2// Use of this source code is governed by a BSD-style license that can be
3// found in the LICENSE file.
4
5#include "base/files/file_path.h"
rockot596a0dd2016-08-26 00:57:51[diff] [blame]6#include "base/macros.h"
xhwang6a01b392015-11-10 07:48:30[diff] [blame]7#include "base/native_library.h"
rockot596a0dd2016-08-26 00:57:51[diff] [blame]8#include "base/path_service.h"
9#include "base/test/native_library_test_utils.h"
10#include "build/build_config.h"
xhwang6a01b392015-11-10 07:48:30[diff] [blame]11#include "testing/gtest/include/gtest/gtest.h"
12
13namespace base {
14
15const FilePath::CharType kDummyLibraryPath[] =
16 FILE_PATH_LITERAL("dummy_library");
17
18TEST(NativeLibraryTest, LoadFailure) {
19 NativeLibraryLoadError error;
thestige38fbd62016-06-10 21:54:40[diff] [blame]20 EXPECT_FALSE(LoadNativeLibrary(FilePath(kDummyLibraryPath), &error));
xhwang6a01b392015-11-10 07:48:30[diff] [blame]21 EXPECT_FALSE(error.ToString().empty());
22}
23
24// |error| is optional and can be null.
25TEST(NativeLibraryTest, LoadFailureWithNullError) {
thestige38fbd62016-06-10 21:54:40[diff] [blame]26 EXPECT_FALSE(LoadNativeLibrary(FilePath(kDummyLibraryPath), nullptr));
27}
28
29TEST(NativeLibraryTest, GetNativeLibraryName) {
30 const char kExpectedName[] =
31#if defined(OS_IOS)
32 "mylib";
33#elif defined(OS_MACOSX)
thestig02c965b2016-06-14 18:52:23[diff] [blame]34 "libmylib.dylib";
thestige38fbd62016-06-10 21:54:40[diff] [blame]35#elif defined(OS_POSIX)
36 "libmylib.so";
37#elif defined(OS_WIN)
38 "mylib.dll";
39#endif
thestig02c965b2016-06-14 18:52:23[diff] [blame]40 EXPECT_EQ(kExpectedName, GetNativeLibraryName("mylib"));
xhwang6a01b392015-11-10 07:48:30[diff] [blame]41}
42
rockot596a0dd2016-08-26 00:57:51[diff] [blame]43// We don't support dynamic loading on iOS, and ASAN will complain about our
44// intentional ODR violation because of |g_native_library_exported_value| being
45// defined globally both here and in the shared library.
46#if !defined(OS_IOS) && !defined(ADDRESS_SANITIZER)
47
48const char kTestLibraryName[] =
49#if defined(OS_MACOSX)
50 "libtest_shared_library.dylib";
51#elif defined(OS_ANDROID) && defined(COMPONENT_BUILD)
52 "libtest_shared_library.cr.so";
53#elif defined(OS_POSIX)
54 "libtest_shared_library.so";
55#elif defined(OS_WIN)
56 "test_shared_library.dll";
57#endif
58
59class TestLibrary {
60 public:
61 TestLibrary() : TestLibrary(NativeLibraryOptions()) {}
62
63 explicit TestLibrary(const NativeLibraryOptions& options)
64 : library_(nullptr) {
65 base::FilePath exe_path;
66 CHECK(base::PathService::Get(base::DIR_EXE, &exe_path));
67
68 library_ = LoadNativeLibraryWithOptions(
69 exe_path.AppendASCII(kTestLibraryName), options, nullptr);
70 CHECK(library_);
71 }
72
73 ~TestLibrary() {
74 UnloadNativeLibrary(library_);
75 }
76
77 template <typename ReturnType, typename... Args>
78 ReturnType Call(const char* function_name, Args... args) {
79 return reinterpret_cast<ReturnType(*)(Args...)>(
80 GetFunctionPointerFromNativeLibrary(library_, function_name))(args...);
81 }
82
83 private:
84 NativeLibrary library_;
85
86 DISALLOW_COPY_AND_ASSIGN(TestLibrary);
87};
88
lizeb05b0a5f2016-08-26 12:51:31[diff] [blame]89// NativeLibraaryTest.LoadLibrary is failing on M tablets only.
90// crbug/641309
91#if !defined(OS_ANDROID)
92
rockot596a0dd2016-08-26 00:57:51[diff] [blame]93// Verifies that we can load a native library and resolve its exported symbols.
94TEST(NativeLibraryTest, LoadLibrary) {
95 TestLibrary library;
96 EXPECT_EQ(5, library.Call<int>("GetSimpleTestValue"));
97}
98
lizeb05b0a5f2016-08-26 12:51:31[diff] [blame]99#endif // !defined(OS_ANDROID)
100
rockot596a0dd2016-08-26 00:57:51[diff] [blame]101// Android dlopen() requires further investigation, as it might vary across
102// versions with respect to symbol resolution scope.
avib0c095912017-03-31 01:24:12[diff] [blame]103// TSan and MSan error out on RTLD_DEEPBIND, https://crbug.com/705255
104#if !defined(OS_ANDROID) && !defined(THREAD_SANITIZER) && \
105 !defined(MEMORY_SANITIZER)
rockot596a0dd2016-08-26 00:57:51[diff] [blame]106
107// Verifies that the |prefer_own_symbols| option satisfies its guarantee that
108// a loaded library will always prefer local symbol resolution before
109// considering global symbols.
110TEST(NativeLibraryTest, LoadLibraryPreferOwnSymbols) {
111 NativeLibraryOptions options;
112 options.prefer_own_symbols = true;
113 TestLibrary library(options);
114
115 // Verify that this binary and the DSO use different storage for
116 // |g_native_library_exported_value|.
117 g_native_library_exported_value = 1;
118 library.Call<void>("SetExportedValue", 2);
119 EXPECT_EQ(1, g_native_library_exported_value);
120 g_native_library_exported_value = 3;
121 EXPECT_EQ(2, library.Call<int>("GetExportedValue"));
122
123 // Both this binary and the library link against the
124 // native_library_test_utils source library, which in turn exports the
125 // NativeLibraryTestIncrement() function whose return value depends on some
126 // static internal state.
127 //
128 // The DSO's GetIncrementValue() forwards to that function inside the DSO.
129 //
130 // Here we verify that direct calls to NativeLibraryTestIncrement() in this
131 // binary return a sequence of values independent from the sequence returned
132 // by GetIncrementValue(), ensuring that the DSO is calling its own local
133 // definition of NativeLibraryTestIncrement().
134 EXPECT_EQ(1, library.Call<int>("GetIncrementValue"));
135 EXPECT_EQ(1, NativeLibraryTestIncrement());
136 EXPECT_EQ(2, library.Call<int>("GetIncrementValue"));
137 EXPECT_EQ(3, library.Call<int>("GetIncrementValue"));
138 EXPECT_EQ(4, library.Call<int>("NativeLibraryTestIncrement"));
139 EXPECT_EQ(2, NativeLibraryTestIncrement());
140 EXPECT_EQ(3, NativeLibraryTestIncrement());
141}
142
143#endif // !defined(OS_ANDROID)
144
145#endif // !defined(OS_IOS) && !defined(ADDRESS_SANITIZER)
146
xhwang6a01b392015-11-10 07:48:30[diff] [blame]147} // namespace base