A class was used to put some utility functions under a namespace. But then this
namespace was inherited into classes, so the namespace split was undone. Let's
just define those functions in the module namespace.
(The Utilities class with a few functions still remain, because of the
unittest-style self.assert* craziness.)
For normal shell calls, python syntax is quite verbose. We don't need to punish
ourselves like that. In some places we would fork a shell to do argument splitting
for us. We know that our arguments can be safely split on whitespace, so let's do
that ourselves in all cases, without forking a shell.
We also expect command output to be valid text, so let's always set
universal_newlines=True.
This makes things shorter and easier to read. Development is also easier because
it's possible to paste many of the commands directly to/from a shell.
Adds the resumeflags= kernel command line option to allow setting a
custom device timeout for the resume device (defaults to the same as the
root device).
In certain situations, the systemctl commands may fail (e.g. due to
missing shared libraries), but the 'script' continues and creates a
/testok file, marking the test incorrectly as passed. Let's fix this and
bail out immediately when a command exits with a non-zero exit code.
Running integration tests with ASan is somewhat tricky to begin with, as
we need to pre-load the ASan runtime DSO for certain services (like
dbus), otherwise they won't start or behave as expected. In case of gcc
this is pretty easy, as we need the runtime DSO during compilation, so
it's already present on the host system. For clang things get more
complicated, as ASan is compiled in statically by default, thus to
enable the necessary dynamic-ish behavior one needs to compile with
-shared-libasan and then correctly set LD_PRELOAD_PATH, as the runtime
libraries are not in a standard library path.
These services are likely to coredump, and we expect that but aren't
interested in the coredump. Hence let's turn off processing by setting
RLIMIT_CORE to 0/0.
