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/*
* Copyright (C) 2018-2024 Intel Corporation
*
* SPDX-License-Identifier: MIT
*
*/
#include "shared/source/os_interface/os_library.h"
#include "shared/test/common/fixtures/memory_management_fixture.h"
#include "shared/test/common/test_macros/test.h"
#include "gtest/gtest.h"
#include <memory>
namespace Os {
extern const char *testDllName;
} // namespace Os
const std::string fakeLibName = "_fake_library_name_";
const std::string fnName = "testDynamicLibraryFunc";
using namespace NEO;
TEST(OSLibraryTest, whenLibraryNameIsEmptyThenCurrentProcesIsUsedAsLibrary) {
std::unique_ptr<OsLibrary> library{OsLibrary::loadFunc("")};
EXPECT_NE(nullptr, library);
void *ptr = library->getProcAddress("selfDynamicLibraryFunc");
EXPECT_NE(nullptr, ptr);
}
TEST(OSLibraryTest, GivenFakeLibNameWhenLoadingLibraryThenNullIsReturned) {
OsLibrary *library = OsLibrary::loadFunc(fakeLibName);
EXPECT_EQ(nullptr, library);
}
TEST(OSLibraryTest, GivenFakeLibNameWhenLoadingLibraryThenNullIsReturnedAndErrorString) {
std::string errorValue;
OsLibrary *library = OsLibrary::loadAndCaptureError(fakeLibName, &errorValue);
EXPECT_FALSE(errorValue.empty());
EXPECT_EQ(nullptr, library);
}
TEST(OSLibraryTest, GivenValidLibNameWhenLoadingLibraryThenLibraryIsLoaded) {
std::unique_ptr<OsLibrary> library(OsLibrary::loadFunc(Os::testDllName));
EXPECT_NE(nullptr, library);
}
TEST(OSLibraryTest, GivenValidLibNameWhenLoadingLibraryThenLibraryIsLoadedWithNoErrorString) {
std::string errorValue;
std::unique_ptr<OsLibrary> library(OsLibrary::loadAndCaptureError(Os::testDllName, &errorValue));
EXPECT_TRUE(errorValue.empty());
EXPECT_NE(nullptr, library);
}
TEST(OSLibraryTest, whenSymbolNameIsValidThenGetProcAddressReturnsNonNullPointer) {
std::unique_ptr<OsLibrary> library(OsLibrary::loadFunc(Os::testDllName));
EXPECT_NE(nullptr, library);
void *ptr = library->getProcAddress(fnName);
EXPECT_NE(nullptr, ptr);
}
TEST(OSLibraryTest, whenSymbolNameIsInvalidThenGetProcAddressReturnsNullPointer) {
std::unique_ptr<OsLibrary> library(OsLibrary::loadFunc(Os::testDllName));
EXPECT_NE(nullptr, library);
void *ptr = library->getProcAddress(fnName + "invalid");
EXPECT_EQ(nullptr, ptr);
}
using OsLibraryTestWithFailureInjection = Test<MemoryManagementFixture>;
TEST_F(OsLibraryTestWithFailureInjection, GivenFailureInjectionWhenLibraryIsLoadedThenOnlyFailedAllocationIsNull) {
InjectedFunction method = [](size_t failureIndex) {
std::string libName(Os::testDllName);
// System under test
OsLibrary *library = OsLibrary::loadFunc(libName);
if (MemoryManagement::nonfailingAllocation == failureIndex) {
EXPECT_NE(nullptr, library);
} else {
EXPECT_EQ(nullptr, library);
}
// Make sure that we only have 1 buffer allocated at a time
delete library;
};
injectFailures(method);
}
TEST(OsLibrary, whenCallingIndexOperatorThenObjectConvertibleToFunctionOrVoidPointerIsReturned) {
struct MockOsLibrary : OsLibrary {
void *getProcAddress(const std::string &procName) override {
lastRequestedProcName = procName;
return ptrToReturn;
}
bool isLoaded() override { return true; }
std::string getFullPath() override { return std::string(); }
void *ptrToReturn = nullptr;
std::string lastRequestedProcName;
};
MockOsLibrary lib;
int varA;
int varB;
int varC;
using FunctionTypeA = void (*)(int *, float);
using FunctionTypeB = int (*)();
lib.ptrToReturn = &varA;
FunctionTypeA functionA = lib["funcA"];
EXPECT_STREQ("funcA", lib.lastRequestedProcName.c_str());
EXPECT_EQ(&varA, reinterpret_cast<void *>(functionA));
lib.ptrToReturn = &varB;
FunctionTypeB functionB = lib["funcB"];
EXPECT_STREQ("funcB", lib.lastRequestedProcName.c_str());
EXPECT_EQ(&varB, reinterpret_cast<void *>(functionB));
lib.ptrToReturn = &varC;
void *rawPtr = lib["funcC"];
EXPECT_STREQ("funcC", lib.lastRequestedProcName.c_str());
EXPECT_EQ(&varC, rawPtr);
}
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