As seen in the first commit message, operation detail text is XML
encoded. This makes it harder to read, especially commands which often
have single quotes encoded as '. For example:
<b><i>mkfs.ext2 -F -L '' '/home/centos/programming/c/gparted/tests/test_ext2.img'</i></b>
Strip this encoding when printing the operation details. Now the same
example looks like:
mkfs.ext2 -F -L '' '/home/centos/programming/c/gparted/tests/test_ext2.img'
Closes!49 - Add file system interface tests
Running test_ext2 in GitLab Continuous Integration environment fails like
this:
(test_ext2:6338): Gtk-WARNING **: 09:06:17.576: cannot open display:
Running main() from test_ext2.cc
Obviously the GitLab CI environment doesn't have an X11 display, but
unfortunately this test case code requires one.
Utils::execute_command() calls Gtk::Main::run() so requires a Gtk::Main
object constructing and therefore an X11 display, even though this
program never displays anything graphical. The call chain is:
main() test_ext2.cc
Gtk::Main::Main() gtkmm/gtk/src/main.ccg
Gtk::Main::init() [1]
gtk_init() gtk/gtk/gtkmain.c [2]
which exits with a non-zero exit status when the DISPLAY environment
variable is unset.
Looked at deriving from Gtk::Main class and writing a replacement init()
method which calls gtk_init_check() instead of gtk_init() but
Gtk::Main::instance_ is a private member so not accessible in a derived
class.
Tried using Glib::MainLoop instead of Gtk::Main, but that doesn't
initialise everything that Gtk::Main(), so the program crashes.
Therefore use xvfb-run [3][4] to run this test program against a virtual
X11 display when a real display isn't available. Coded execution of
xvfb-run into this test program so that it can simply be executed on the
command line like the other test programs, without having to remember to
run "xvfb-run ./test_ext2 ...".
[1] Gtk::Main::init()
https://gitlab.gnome.org/GNOME/gtkmm/blob/3.10.1/gtk/src/main.ccg#L287
[2] gtk_init()
https://gitlab.gnome.org/GNOME/gtk/blob/3.10.9/gtk/gtkmain.c#L1000
[3] how to run gtk app on linux without an x server
https://superuser.com/questions/624918/how-to-run-gtk-app-on-linux-without-an-x-server
[4] Using GTK without DISPLAY
https://stackoverflow.com/questions/11694278/using-gtk-without-displayCloses!49 - Add file system interface tests
This is the first step of adding testing of the derived FileSystem
interface classes which call the file system specific executables.
Rather than mocking command execution and returned output the tests run
the 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.
For example, temporarily breaking the test code to create a 10 KiB image
file instead of 256 MiB one produces this:
$ ./test_ext2
Running main() from test_ext2.cc
[==========] Running 1 test from 1 test case.
[----------] Global test environment set-up.
[----------] 1 test from ext2Test
[ RUN ] ext2Test.Create
test_ext2.cc:199: Failure
Value of: s_ext2_obj->create(m_partition, m_operation_detail)
Actual: false
Expected: true
Operation details:
<b><i>mkfs.ext2 -F -L '' '/home/centos/programming/c/gparted/tests/test_ext2.img'</i></b> 00:00:00 (ERROR)
<i></i>
<i>mke2fs 1.42.9 (28-Dec-2013)
/home/centos/programming/c/gparted/tests/test_ext2.img: Not enough space to build proposed filesystem while setting up superblock
</i>
[ FAILED ] ext2Test.Create (25 ms)
[----------] 1 test from ext2Test (25 ms total)
[----------] Global test environment tear-down
[==========] 1 test from 1 test case ran. (30 ms total)
[ PASSED ] 0 tests.
[ FAILED ] 1 test, listed below:
[ FAILED ] ext2Test.Create
1 FAILED TEST
$ echo $?
1
Also as Utils:: and FileSystem::execute_command() are needed, this
requires linking with GParted_Core for GParted_Core::mainthread and
therefore with most of the non-UI classes in gpartedbin.
Closes!49 - Add file system interface tests
Mike Fleetwood