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gparted/tests/test_SupportedFileSystems.cc

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/* Copyright (C) 2019 Mike Fleetwood
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, see <http://www.gnu.org/licenses/>.
*/
/* Test SupportedFileSystems
*
* Test the derived FileSystem interface classes which call the file system specific
* executables via the SupportedFileSystems class. Rather than mocking command execution
* and returned output just run real commands, effectively making this integration testing.
*
* Test case setup determines the file system supported actions using
* get_filesystem_support() and individual tests are skipped if a feature is not
* supported, just as GParted does for it's actions.
*
* Each test creates it's own sparse image file and a fresh file system, performs a test
* on one FileSystem interface call and deletes the image file. This makes each test
* independent and allows them to run as a non-root user, provided the file system command
* itself doesn't require root. Errors reported for a failed interface call will include
* the GParted OperationDetails, which in turn includes the file system specific command
* used and stdout and stderr from it's execution.
*/
#include "common.h"
#include "insertion_operators.h"
#include "GParted_Core.h"
#include "FileSystem.h"
#include "OperationDetail.h"
#include "Partition.h"
#include "Utils.h"
#include "SupportedFileSystems.h"
#include "gtest/gtest.h"
#include <iostream>
#include <fstream>
#include <vector>
#include <stdlib.h>
#include <stddef.h>
#include <stdio.h>
#include <unistd.h>
#include <sys/types.h>
#include <fcntl.h>
#include <string.h>
#include <errno.h>
#include <gtkmm.h>
#include <glibmm/thread.h>
#include <glibmm/ustring.h>
#include <parted/parted.h>
namespace GParted
{
// Print method for the messages in a Partition object.
std::ostream& operator<<(std::ostream& out, const Partition& partition)
{
const std::vector<Glib::ustring> messages = partition.get_messages();
out << "Partition messages:\n";
for (unsigned int i = 0; i < messages.size(); i++)
out << messages[i];
return out;
}
// Printable file system type which meets the requirements for a Google Test name.
// Use GParted's file system names except when they contains any non-alphabetic chars.
// Reference:
// * Specifying Names for Value-Parameterized Test Parameters
// https://github.com/google/googletest/blob/v1.8.x/googletest/docs/advanced.md#specifying-names-for-value-parameterized-test-parameters
// "NOTE: test names must be non-empty, unique, and may only contain ASCII
// alphanumeric characters. In particular, they should not contain underscores."
const std::string test_fsname(FSType fstype)
{
switch (fstype)
{
case FS_HFSPLUS: return "hfsplus";
case FS_LINUX_SWAP: return "linuxswap";
case FS_LVM2_PV: return "lvm2pv";
default: break;
}
return std::string(Utils::get_filesystem_string(fstype));
}
// Function callable by INSTANTIATE_TEST_SUITE_P() to get the file system type for
// printing as part of the test name.
const std::string param_fsname(const ::testing::TestParamInfo<FSType>& info)
{
return test_fsname(info.param);
}
// Google Test 1.8.1 (and earlier) doesn't implement run-time test skipping so implement
// our own for GParted run-time detected of unsupported file system features.
// Ref:
// Skipping tests at runtime with GTEST_SKIP() #1544
// https://github.com/google/googletest/pull/1544
// (Merged after Google Test 1.8.1)
#define SKIP_IF_FS_DOESNT_SUPPORT(opt) \
if (s_supported_filesystems->get_fs_support(m_fstype).opt != FS::EXTERNAL) \
{ \
std::cout << __FILE__ << ":" << __LINE__ << ": Skip test. " \
<< #opt << " not supported or support not found" << std::endl; \
return; \
}
#define SKIP_IF_NOT_ROOT_FOR_REQUIRED_LOOPDEV_FOR_FS(fstype) \
if (m_fstype == fstype) \
{ \
if (getuid() != 0) \
{ \
std::cout << __FILE__ << ":" << __LINE__ << ": Skip test. Not root " \
<< "to be able to create required loop device" << std::endl; \
return; \
} \
m_require_loopdev = true; \
}
#define SKIP_IF_TEST_DISABLED_FOR_FS(fstype) \
if (m_fstype == fstype) \
{ \
std::cout << __FILE__ << ":" << __LINE__ << ": Skip test. " \
<< "Test disabled for file system" << std::endl; \
return; \
}
// Temporarily workaround bugs in mkfs.reiser4 and debugfs.reiser4 which occasionally
// create and read a null UUID respectively.
#define IGNORE_REISER4_NULL_UUID() \
if (m_fstype == FS_REISER4 && m_partition.uuid.size() == 0) \
{ \
std::cout << __FILE__ << ":" << __LINE__ << ": Ignore test " \
<< "failure of a null UUID." << std::endl; \
m_partition.uuid = "XXXXXXXXX"; \
}
const Byte_Value IMAGESIZE_Default = 320*MEBIBYTE;
const Byte_Value IMAGESIZE_Larger = 512*MEBIBYTE;
class SupportedFileSystemsTest : public ::testing::TestWithParam<FSType>
{
protected:
SupportedFileSystemsTest();
virtual void SetUp();
virtual void create_image_file(Byte_Value size = IMAGESIZE_Default);
virtual void TearDown();
public:
static void SetUpTestCase();
static void TearDownTestCase();
static std::vector<FSType> get_supported_fstypes();
protected:
static void setup_supported_filesystems();
static void teardown_supported_filesystems();
virtual const std::string create_loopdev(const std::string& image_name) const;
virtual void detach_loopdev(const std::string& loopdev_name) const;
virtual void reload_loopdev_size(const std::string& loopdev_name) const;
virtual void reload_partition();
virtual void resize_image(Byte_Value new_size);
virtual void shrink_partition(Byte_Value size);
static SupportedFileSystems* s_supported_filesystems; // Owning pointer
static const char* s_image_name;
FSType m_fstype;
FileSystem* m_fs_object; // Alias pointer
bool m_require_loopdev;
std::string m_dev_name;
Partition m_partition;
OperationDetail m_operation_detail;
};
SupportedFileSystems* SupportedFileSystemsTest::s_supported_filesystems = nullptr;
const char* SupportedFileSystemsTest::s_image_name = "test_SupportedFileSystems.img";
SupportedFileSystemsTest::SupportedFileSystemsTest()
: m_fstype(GetParam()), m_fs_object(nullptr), m_require_loopdev(false),
// Initialise top-level operation detail object with description ...
m_operation_detail("Operation details:", STATUS_NONE)
{
}
void SupportedFileSystemsTest::SetUp()
{
ASSERT_TRUE(s_supported_filesystems != nullptr) << __func__ << "(): TEST_BUG: File system interfaces not loaded";
// Lookup file system interface object.
m_fs_object = s_supported_filesystems->get_fs_object(m_fstype);
ASSERT_TRUE(m_fs_object != nullptr) << __func__ << "(): TEST_BUG: Interface object not found for file system "
<< test_fsname(m_fstype);
}
void SupportedFileSystemsTest::create_image_file(Byte_Value size)
{
// Create new image file to work with.
unlink(s_image_name);
int fd = open(s_image_name, O_WRONLY|O_CREAT|O_NONBLOCK, 0666);
ASSERT_GE(fd, 0) << "Failed to create image file '" << s_image_name << "'. errno="
<< errno << "," << strerror(errno);
ASSERT_EQ(ftruncate(fd, (off_t)size), 0) << "Failed to set image file '" << s_image_name << "' to size "
<< size << ". errno=" << errno << "," << strerror(errno);
close(fd);
m_dev_name = s_image_name;
if (m_require_loopdev)
m_dev_name = create_loopdev(s_image_name);
reload_partition();
}
void SupportedFileSystemsTest::TearDown()
{
if (m_require_loopdev)
detach_loopdev(m_dev_name);
unlink(s_image_name);
m_fs_object = nullptr;
}
// Common test case initialisation creating the supported file system interface object.
void SupportedFileSystemsTest::SetUpTestCase()
{
setup_supported_filesystems();
}
// Common test case teardown destroying the supported file systems interface object.
void SupportedFileSystemsTest::TearDownTestCase()
{
teardown_supported_filesystems();
}
std::vector<FSType> SupportedFileSystemsTest::get_supported_fstypes()
{
setup_supported_filesystems();
std::vector<FSType> v;
const std::vector<FS>& fss = s_supported_filesystems->get_all_fs_support();
for (unsigned int i = 0; i < fss.size(); i++)
{
if (s_supported_filesystems->supported_filesystem(fss[i].fstype))
v.push_back(fss[i].fstype);
}
return v;
}
// Create the supported file system interface object.
void SupportedFileSystemsTest::setup_supported_filesystems()
{
if (s_supported_filesystems == nullptr)
{
s_supported_filesystems = new SupportedFileSystems();
// Discover available file systems support capabilities, base on available
// file system specific tools.
s_supported_filesystems->find_supported_filesystems();
}
}
// Destroy the supported file systems interface object.
void SupportedFileSystemsTest::teardown_supported_filesystems()
{
delete s_supported_filesystems;
s_supported_filesystems = nullptr;
}
// Create loop device over named image file and return the device name.
const std::string SupportedFileSystemsTest::create_loopdev(const std::string& image_name) const
{
Glib::ustring output;
Glib::ustring error;
Glib::ustring cmd = "losetup --find --show " + Glib::shell_quote(image_name);
int exit_status = Utils::execute_command(cmd, output, error, true);
if (exit_status != 0)
{
ADD_FAILURE() << __func__ << "(): Execute: " << cmd << "\n"
<< error
<< __func__ << "(): Losetup failed with exit status " << exit_status << "\n"
<< __func__ << "(): Failed to create required loop device";
return "";
}
return Utils::trim_trailing_new_line(output);
}
// Detach named loop device.
void SupportedFileSystemsTest::detach_loopdev(const std::string& loopdev_name) const
{
Glib::ustring output;
Glib::ustring error;
Glib::ustring cmd = "losetup --detach " + Glib::shell_quote(loopdev_name);
int exit_status = Utils::execute_command(cmd, output, error, true);
if (exit_status != 0)
{
// Report losetup detach error but don't fail the test because of it.
std::cout << __func__ << "(): Execute: " << cmd << "\n"
<< error
<< __func__ << "(): Losetup failed with exit status " << exit_status << "\n"
<< __func__ << "(): Failed to detach loop device. Test NOT affected" << std::endl;
}
}
// Instruct loop device to reload the size of the underlying image file.
void SupportedFileSystemsTest::reload_loopdev_size(const std::string& loopdev_name) const
{
Glib::ustring output;
Glib::ustring error;
Glib::ustring cmd = "losetup --set-capacity " + Glib::shell_quote(loopdev_name);
int exit_status = Utils::execute_command(cmd, output, error, true);
if (exit_status != 0)
{
ADD_FAILURE() << __func__ << "(): Execute: " << cmd << "\n"
<< error
<< __func__ << "(): Losetup failed with exit status " << exit_status << "\n"
<< __func__ << "(): Failed to reload loop device size";
}
}
// (Re)initialise m_partition as a Partition object spanning the whole of the image file
// with file system type only. No file system usage, label or UUID.
void SupportedFileSystemsTest::reload_partition()
{
m_partition.Reset();
// Use libparted to get the sector size etc. of the image file.
PedDevice* lp_device = ped_device_get(m_dev_name.c_str());
ASSERT_TRUE(lp_device != nullptr);
// Prepare partition object spanning whole of the image file.
m_partition.set_unpartitioned(m_dev_name,
lp_device->path,
m_fstype,
lp_device->length,
lp_device->sector_size,
false);
ped_device_destroy(lp_device);
lp_device = nullptr;
}
void SupportedFileSystemsTest::resize_image(Byte_Value new_size)
{
int fd = open(s_image_name, O_WRONLY|O_NONBLOCK);
ASSERT_GE(fd, 0) << "Failed to open image file '" << s_image_name << "'. errno="
<< errno << "," << strerror(errno);
ASSERT_EQ(ftruncate(fd, (off_t)new_size), 0) << "Failed to resize image file '" << s_image_name << "' to size "
<< new_size << ". errno=" << errno << "," << strerror(errno);
close(fd);
if (m_require_loopdev)
reload_loopdev_size(m_dev_name);
}
void SupportedFileSystemsTest::shrink_partition(Byte_Value new_size)
{
ASSERT_LE(new_size, m_partition.get_byte_length()) << __func__ << "(): TEST_BUG: Cannot grow Partition object size";
Sector new_sectors = (new_size + m_partition.sector_size - 1) / m_partition.sector_size;
m_partition.sector_end = new_sectors;
}
TEST_P(SupportedFileSystemsTest, Create)
{
SKIP_IF_FS_DOESNT_SUPPORT(create);
SKIP_IF_NOT_ROOT_FOR_REQUIRED_LOOPDEV_FOR_FS(FS_LVM2_PV);
create_image_file();
// Call create, check for success and print operation details on failure.
ASSERT_TRUE(m_fs_object->create(m_partition, m_operation_detail)) << m_operation_detail;
}
TEST_P(SupportedFileSystemsTest, CreateAndReadUsage)
{
SKIP_IF_FS_DOESNT_SUPPORT(create);
SKIP_IF_FS_DOESNT_SUPPORT(read);
SKIP_IF_NOT_ROOT_FOR_REQUIRED_LOOPDEV_FOR_FS(FS_LVM2_PV);
SKIP_IF_NOT_ROOT_FOR_REQUIRED_LOOPDEV_FOR_FS(FS_NILFS2);
create_image_file();
ASSERT_TRUE(m_fs_object->create(m_partition, m_operation_detail)) << m_operation_detail;
reload_partition();
m_fs_object->set_used_sectors(m_partition);
// Test file system usage is reported correctly.
// Used is between 0 and length.
EXPECT_LE(0, m_partition.get_sectors_used());
EXPECT_LE(m_partition.get_sectors_used(), m_partition.get_sector_length());
// Unused is between 0 and length.
EXPECT_LE(0, m_partition.get_sectors_unused());
EXPECT_LE(m_partition.get_sectors_unused(), m_partition.get_sector_length());
// Unallocated is 0.
EXPECT_EQ(m_partition.get_sectors_unallocated(), 0);
// Used + unused = length.
EXPECT_EQ(m_partition.get_sectors_used() + m_partition.get_sectors_unused(), m_partition.get_sector_length());
// Test messages from read operation are empty or print them.
EXPECT_TRUE(m_partition.get_messages().empty()) << m_partition;
}
TEST_P(SupportedFileSystemsTest, CreateAndReadLabel)
{
SKIP_IF_FS_DOESNT_SUPPORT(create);
SKIP_IF_FS_DOESNT_SUPPORT(read_label);
SKIP_IF_NOT_ROOT_FOR_REQUIRED_LOOPDEV_FOR_FS(FS_LVM2_PV);
SKIP_IF_NOT_ROOT_FOR_REQUIRED_LOOPDEV_FOR_FS(FS_NILFS2);
const char* fs_label = "TEST_LABEL";
create_image_file();
m_partition.set_filesystem_label(fs_label);
ASSERT_TRUE(m_fs_object->create(m_partition, m_operation_detail)) << m_operation_detail;
// Test reading the label is successful.
reload_partition();
m_fs_object->read_label(m_partition);
EXPECT_STREQ(fs_label, m_partition.get_filesystem_label().c_str());
// Test messages from read operation are empty or print them.
EXPECT_TRUE(m_partition.get_messages().empty()) << m_partition;
}
TEST_P(SupportedFileSystemsTest, CreateAndReadUUID)
{
SKIP_IF_FS_DOESNT_SUPPORT(create);
SKIP_IF_FS_DOESNT_SUPPORT(read_uuid);
SKIP_IF_NOT_ROOT_FOR_REQUIRED_LOOPDEV_FOR_FS(FS_LVM2_PV);
SKIP_IF_NOT_ROOT_FOR_REQUIRED_LOOPDEV_FOR_FS(FS_NILFS2);
create_image_file();
ASSERT_TRUE(m_fs_object->create(m_partition, m_operation_detail)) << m_operation_detail;
if (m_fstype == FS_JFS)
{
// Write a new UUID to cause the jfs version to be updated from 1 to 2 so
// that jfs_tune can successfully report the UUID of the file system.
SKIP_IF_FS_DOESNT_SUPPORT(write_uuid);
ASSERT_TRUE(m_fs_object->write_uuid(m_partition, m_operation_detail)) << m_operation_detail;
}
// Test reading the UUID is successful.
reload_partition();
m_fs_object->read_uuid(m_partition);
IGNORE_REISER4_NULL_UUID();
EXPECT_GE(m_partition.uuid.size(), 9U);
// Test messages from read operation are empty or print them.
EXPECT_TRUE(m_partition.get_messages().empty()) << m_partition;
}
TEST_P(SupportedFileSystemsTest, CreateAndWriteLabel)
{
SKIP_IF_FS_DOESNT_SUPPORT(create);
SKIP_IF_FS_DOESNT_SUPPORT(write_label);
SKIP_IF_NOT_ROOT_FOR_REQUIRED_LOOPDEV_FOR_FS(FS_LVM2_PV);
SKIP_IF_NOT_ROOT_FOR_REQUIRED_LOOPDEV_FOR_FS(FS_NILFS2);
create_image_file();
m_partition.set_filesystem_label("FIRST");
ASSERT_TRUE(m_fs_object->create(m_partition, m_operation_detail)) << m_operation_detail;
// Test clearing the label is successful.
m_partition.set_filesystem_label("");
ASSERT_TRUE(m_fs_object->write_label(m_partition, m_operation_detail)) << m_operation_detail;
// Test writing the label is successful.
m_partition.set_filesystem_label("SECOND");
ASSERT_TRUE(m_fs_object->write_label(m_partition, m_operation_detail)) << m_operation_detail;
}
TEST_P(SupportedFileSystemsTest, CreateAndWriteUUID)
{
SKIP_IF_FS_DOESNT_SUPPORT(create);
SKIP_IF_FS_DOESNT_SUPPORT(write_uuid);
SKIP_IF_NOT_ROOT_FOR_REQUIRED_LOOPDEV_FOR_FS(FS_LVM2_PV);
SKIP_IF_NOT_ROOT_FOR_REQUIRED_LOOPDEV_FOR_FS(FS_NILFS2);
create_image_file();
ASSERT_TRUE(m_fs_object->create(m_partition, m_operation_detail)) << m_operation_detail;
// Test writing a new random UUID is successful.
ASSERT_TRUE(m_fs_object->write_uuid(m_partition, m_operation_detail)) << m_operation_detail;
}
TEST_P(SupportedFileSystemsTest, CreateAndWriteUUIDAndReadLabel)
{
SKIP_IF_FS_DOESNT_SUPPORT(create);
SKIP_IF_FS_DOESNT_SUPPORT(write_uuid);
SKIP_IF_FS_DOESNT_SUPPORT(read_label);
SKIP_IF_NOT_ROOT_FOR_REQUIRED_LOOPDEV_FOR_FS(FS_LVM2_PV);
SKIP_IF_NOT_ROOT_FOR_REQUIRED_LOOPDEV_FOR_FS(FS_NILFS2);
const char* fs_label = "TEST_LABEL";
create_image_file();
m_partition.set_filesystem_label(fs_label);
ASSERT_TRUE(m_fs_object->create(m_partition, m_operation_detail)) << m_operation_detail;
// Test writing a new random UUID is successful.
ASSERT_TRUE(m_fs_object->write_uuid(m_partition, m_operation_detail)) << m_operation_detail;
// Test reading the label is successful and it hasn't changed.
reload_partition();
m_fs_object->read_label(m_partition);
EXPECT_STREQ(fs_label, m_partition.get_filesystem_label().c_str());
// Test messages from read operation are empty or print them.
EXPECT_TRUE(m_partition.get_messages().empty()) << m_partition;
}
TEST_P(SupportedFileSystemsTest, CreateAndCheck)
{
SKIP_IF_FS_DOESNT_SUPPORT(create);
SKIP_IF_FS_DOESNT_SUPPORT(check);
SKIP_IF_NOT_ROOT_FOR_REQUIRED_LOOPDEV_FOR_FS(FS_LVM2_PV);
SKIP_IF_TEST_DISABLED_FOR_FS(FS_MINIX); // FIXME: Enable when util-linux >= 2.27 is available everywhere
create_image_file();
ASSERT_TRUE(m_fs_object->create(m_partition, m_operation_detail)) << m_operation_detail;
// Test checking the file system is successful.
ASSERT_TRUE(m_fs_object->check_repair(m_partition, m_operation_detail)) << m_operation_detail;
}
TEST_P(SupportedFileSystemsTest, CreateAndRemove)
{
SKIP_IF_FS_DOESNT_SUPPORT(create);
SKIP_IF_FS_DOESNT_SUPPORT(remove);
SKIP_IF_NOT_ROOT_FOR_REQUIRED_LOOPDEV_FOR_FS(FS_LVM2_PV);
create_image_file();
ASSERT_TRUE(m_fs_object->create(m_partition, m_operation_detail)) << m_operation_detail;
// Test removing the file system is successful. Note that most file systems don't
// implement remove so will skip this test.
ASSERT_TRUE(m_fs_object->remove(m_partition, m_operation_detail)) << m_operation_detail;
}
TEST_P(SupportedFileSystemsTest, CreateAndGrow)
{
SKIP_IF_FS_DOESNT_SUPPORT(create);
SKIP_IF_FS_DOESNT_SUPPORT(grow);
SKIP_IF_NOT_ROOT_FOR_REQUIRED_LOOPDEV_FOR_FS(FS_BTRFS);
SKIP_IF_NOT_ROOT_FOR_REQUIRED_LOOPDEV_FOR_FS(FS_JFS);
SKIP_IF_NOT_ROOT_FOR_REQUIRED_LOOPDEV_FOR_FS(FS_LVM2_PV);
SKIP_IF_NOT_ROOT_FOR_REQUIRED_LOOPDEV_FOR_FS(FS_NILFS2);
SKIP_IF_NOT_ROOT_FOR_REQUIRED_LOOPDEV_FOR_FS(FS_XFS);
create_image_file(IMAGESIZE_Default);
ASSERT_TRUE(m_fs_object->create(m_partition, m_operation_detail)) << m_operation_detail;
// Test growing the file system is successful.
resize_image(IMAGESIZE_Larger);
reload_partition();
ASSERT_TRUE(m_fs_object->resize(m_partition, m_operation_detail, true)) << m_operation_detail;
}
TEST_P(SupportedFileSystemsTest, CreateAndShrink)
{
SKIP_IF_FS_DOESNT_SUPPORT(create);
SKIP_IF_FS_DOESNT_SUPPORT(shrink);
SKIP_IF_NOT_ROOT_FOR_REQUIRED_LOOPDEV_FOR_FS(FS_BTRFS);
SKIP_IF_NOT_ROOT_FOR_REQUIRED_LOOPDEV_FOR_FS(FS_LVM2_PV);
SKIP_IF_NOT_ROOT_FOR_REQUIRED_LOOPDEV_FOR_FS(FS_NILFS2);
create_image_file(IMAGESIZE_Larger);
ASSERT_TRUE(m_fs_object->create(m_partition, m_operation_detail)) << m_operation_detail;
// Test shrinking the file system is successful.
shrink_partition(IMAGESIZE_Default);
ASSERT_TRUE(m_fs_object->resize(m_partition, m_operation_detail, false)) << m_operation_detail;
}
// Instantiate the test case so every test is run for the specified file system types.
// Reference:
// * Google Test, Advanced googletest Topics, How to Write Value-Parameterized Tests
// https://github.com/google/googletest/blob/v1.10.x/googletest/docs/advanced.md#how-to-write-value-parameterized-tests
INSTANTIATE_TEST_SUITE_P(My,
SupportedFileSystemsTest,
::testing::ValuesIn(SupportedFileSystemsTest::get_supported_fstypes()),
param_fsname);
} // namespace GParted
// Custom Google Test main().
// Reference:
// * Google Test, Primer, Writing the main() function
// https://github.com/google/googletest/blob/master/googletest/docs/primer.md#writing-the-main-function
int main(int argc, char** argv)
{
printf("Running main() from %s\n", __FILE__);
GParted::ensure_x11_display(argc, argv);
// Initialise threading in GParted to allow FileSystem interface classes to
// successfully use Utils:: and Filesystem::execute_command(). Must be before
// InitGoogleTest().
GParted::GParted_Core::mainthread = Glib::Thread::self();
Gtk::Main gtk_main = Gtk::Main();
testing::InitGoogleTest(&argc, argv);
return RUN_ALL_TESTS();
}
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