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// Copyright 2020 Open Source Robotics Foundation, Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#include <gtest/gtest.h>
#include <string>
#include "./allocator_testing_utils.h"
#include "rcutils/allocator.h"
#include "rcutils/env.h"
#include "rcutils/error_handling.h"
#include "rcutils/shared_library.h"
class TestSharedLibrary : public ::testing::Test
{
protected:
void SetUp() final
{
// Reset rcutil error global state in case a previously
// running test has failed.
rcutils_reset_error();
lib = rcutils_get_zero_initialized_shared_library();
}
rcutils_shared_library_t lib;
char library_path[1024];
};
TEST_F(TestSharedLibrary, basic_load) {
rcutils_ret_t ret;
// checking rcutils_get_zero_initialized_shared_library
ASSERT_STRNE(lib.library_path, "");
EXPECT_TRUE(lib.lib_pointer == NULL);
EXPECT_FALSE(rcutils_is_shared_library_loaded(&lib));
// Check debug name works first because rcutils_load_shared_library should be called on
// non-debug symbol name
ret = rcutils_get_platform_library_name(
RCUTILS_STRINGIFY(SHARED_LIBRARY_UNDER_TEST), library_path, 1024, true);
ASSERT_EQ(RCUTILS_RET_OK, ret);
ret = rcutils_get_platform_library_name(
RCUTILS_STRINGIFY(SHARED_LIBRARY_UNDER_TEST), library_path, 1024, false);
ASSERT_EQ(RCUTILS_RET_OK, ret);
// getting shared library
ret = rcutils_load_shared_library(&lib, library_path, rcutils_get_default_allocator());
ASSERT_EQ(RCUTILS_RET_OK, ret) << rcutils_get_error_string().str;
EXPECT_TRUE(rcutils_is_shared_library_loaded(&lib));
// unload shared_library
ret = rcutils_unload_shared_library(&lib);
ASSERT_EQ(RCUTILS_RET_OK, ret);
// checking if we have unloaded and freed memory
ASSERT_STRNE(lib.library_path, "");
EXPECT_TRUE(lib.lib_pointer == NULL);
}
TEST_F(TestSharedLibrary, bad_load) {
rcutils_ret_t ret;
ret = rcutils_get_platform_library_name("non_existing_library", library_path, 1024, false);
ASSERT_EQ(RCUTILS_RET_OK, ret);
ret = rcutils_load_shared_library(&lib, library_path, rcutils_get_default_allocator());
ASSERT_EQ(RCUTILS_RET_ERROR, ret);
}
TEST_F(TestSharedLibrary, fail_allocator) {
rcutils_ret_t ret;
ret = rcutils_get_platform_library_name(
RCUTILS_STRINGIFY(SHARED_LIBRARY_UNDER_TEST), library_path, 1024, false);
ASSERT_EQ(RCUTILS_RET_OK, ret);
rcutils_allocator_t failing_allocator = get_failing_allocator();
ret = rcutils_load_shared_library(&lib, library_path, failing_allocator);
ASSERT_EQ(RCUTILS_RET_BAD_ALLOC, ret);
}
TEST_F(TestSharedLibrary, load_two_times) {
rcutils_ret_t ret;
ret = rcutils_get_platform_library_name(
RCUTILS_STRINGIFY(SHARED_LIBRARY_UNDER_TEST), library_path, 1024, false);
ASSERT_EQ(RCUTILS_RET_OK, ret);
// getting shared library
ret = rcutils_load_shared_library(&lib, library_path, rcutils_get_default_allocator());
EXPECT_EQ(RCUTILS_RET_OK, ret);
// getting shared library
rcutils_shared_library_t clone = rcutils_get_zero_initialized_shared_library();
ret = rcutils_load_shared_library(&clone, library_path, rcutils_get_default_allocator());
EXPECT_EQ(RCUTILS_RET_OK, ret);
// unload shared_library
ret = rcutils_unload_shared_library(&clone);
EXPECT_EQ(RCUTILS_RET_OK, ret);
// unload shared_library
ret = rcutils_unload_shared_library(&lib);
EXPECT_EQ(RCUTILS_RET_OK, ret);
}
TEST_F(TestSharedLibrary, error_load) {
rcutils_ret_t ret;
ret = rcutils_load_shared_library(&lib, NULL, rcutils_get_default_allocator());
ASSERT_EQ(RCUTILS_RET_INVALID_ARGUMENT, ret);
rcutils_reset_error();
ret = rcutils_get_platform_library_name(
RCUTILS_STRINGIFY(SHARED_LIBRARY_UNDER_TEST), library_path, 1024, false);
ASSERT_EQ(RCUTILS_RET_OK, ret);
ret = rcutils_load_shared_library(
&lib,
library_path, rcutils_get_zero_initialized_allocator());
ASSERT_EQ(RCUTILS_RET_INVALID_ARGUMENT, ret);
rcutils_reset_error();
ret = rcutils_load_shared_library(
&lib, library_path, rcutils_get_default_allocator());
ASSERT_EQ(RCUTILS_RET_OK, ret);
ret = rcutils_load_shared_library(
&lib, library_path, rcutils_get_default_allocator());
EXPECT_EQ(RCUTILS_RET_INVALID_ARGUMENT, ret);
rcutils_reset_error();
ret = rcutils_unload_shared_library(&lib);
EXPECT_EQ(RCUTILS_RET_OK, ret);
}
TEST_F(TestSharedLibrary, error_unload) {
rcutils_ret_t ret;
ret = rcutils_get_platform_library_name(
RCUTILS_STRINGIFY(SHARED_LIBRARY_UNDER_TEST), library_path, 1024, false);
ASSERT_EQ(RCUTILS_RET_OK, ret);
ret = rcutils_load_shared_library(&lib, library_path, rcutils_get_default_allocator());
ASSERT_EQ(RCUTILS_RET_OK, ret);
// unload shared_library
ret = rcutils_unload_shared_library(&lib);
ASSERT_EQ(RCUTILS_RET_OK, ret);
// unload again shared_library
ret = rcutils_unload_shared_library(&lib);
ASSERT_EQ(RCUTILS_RET_INVALID_ARGUMENT, ret);
}
TEST_F(TestSharedLibrary, error_symbol) {
rcutils_ret_t ret;
bool is_symbol = rcutils_has_symbol(&lib, "symbol");
EXPECT_FALSE(is_symbol);
void * symbol = rcutils_get_symbol(&lib, "print_name");
EXPECT_TRUE(symbol == NULL);
ret = rcutils_get_platform_library_name(
RCUTILS_STRINGIFY(SHARED_LIBRARY_UNDER_TEST), library_path, 1024, false);
ASSERT_EQ(RCUTILS_RET_OK, ret);
ret = rcutils_load_shared_library(&lib, library_path, rcutils_get_default_allocator());
ASSERT_EQ(RCUTILS_RET_OK, ret);
is_symbol = rcutils_has_symbol(&lib, "symbol");
EXPECT_FALSE(is_symbol);
// unload shared_library
ret = rcutils_unload_shared_library(&lib);
ASSERT_EQ(RCUTILS_RET_OK, ret);
}
TEST_F(TestSharedLibrary, basic_symbol) {
void * symbol;
bool ret;
symbol = rcutils_get_symbol(nullptr, "symbol");
EXPECT_TRUE(symbol == NULL);
rcutils_reset_error();
ret = rcutils_has_symbol(nullptr, "symbol");
EXPECT_FALSE(ret);
ret = rcutils_get_platform_library_name(
RCUTILS_STRINGIFY(SHARED_LIBRARY_UNDER_TEST), library_path, 1024, false);
ASSERT_EQ(RCUTILS_RET_OK, ret);
// getting shared library
ret = rcutils_load_shared_library(&lib, library_path, rcutils_get_default_allocator());
ASSERT_EQ(RCUTILS_RET_OK, ret);
symbol = rcutils_get_symbol(&lib, "symbol");
EXPECT_TRUE(symbol == NULL);
symbol = rcutils_get_symbol(&lib, "print_name");
EXPECT_TRUE(symbol != NULL);
ret = rcutils_has_symbol(&lib, "print_name");
EXPECT_TRUE(ret);
// unload shared_library
ret = rcutils_unload_shared_library(&lib);
ASSERT_EQ(RCUTILS_RET_OK, ret);
}
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