os-autoinst-distri-rocky/lib/main_common.pm
Adam Williamson e9ce14a891 consolidate login waits, use postinstall not entrypoint for base
Summary:
I started out wanting to fix an issue I noticed today where
graphical upgrade tests were failing because they didn't wait
for the graphical login screen properly; the test was sitting
at the 'full Fedora logo' state of plymouth for a long time,
so the current boot_to_login_screen's wait_still_screen was
triggered by it and the function wound up failing on the
assert_screen, because it was still some time before the real
login screen appeared.

So I tweaked the boot_to_login_screen implementation to work
slightly differently (look for a login screen match, *then* -
if we're dealing with a graphical login - wait_still_screen
to defeat the 'old GPU buffer showing login screen' problem
and assert the login screen again). But while working on it,
I figured we really should consolidate all the various places
that handle the bootloader -> login, we were doing it quite
differently in all sorts of different places. And as part of
that, I converted the base tests to use POSTINSTALL (and thus
go through the shared _wait_login tests) instead of handling
boot themselves. As part of *that*, I tweaked main.pm to not
require all POSTINSTALL tests have the _postinstall suffix on
their names, as it really doesn't make sense, and renamed the
tests.

Test Plan: Run all tests, see if they work.

Reviewers: jskladan, garretraziel

Reviewed By: garretraziel

Subscribers: tflink

Differential Revision: https://phab.qadevel.cloud.fedoraproject.org/D1015
2016-09-27 11:48:15 -07:00

87 lines
2.9 KiB
Perl

package main_common;
use strict;
use base 'Exporter';
use Exporter;
use testapi;
our @EXPORT = qw/run_with_error_check check_type_string type_safely type_very_safely desktop_vt boot_to_login_screen/;
sub run_with_error_check {
my ($func, $error_screen) = @_;
die "Error screen appeared" if (check_screen $error_screen, 5);
$func->();
die "Error screen appeared" if (check_screen $error_screen, 5);
}
# type the string in sets of characters at a time (default 3), waiting
# for a screen change after each set. Intended to be safer when the VM
# is busy and regular type_string may overload the input buffer. Args
# passed along to `type_string`. Accepts additional args:
# `size` - size of character groups (default 3) - set to 1 for extreme
# safety (but slower and more screenshotting)
sub check_type_string {
my ($string, %args) = @_;
$args{size} //= 3;
# split string into an array of pieces of specified size
# https://stackoverflow.com/questions/372370
my @pieces = unpack("(a$args{size})*", $string);
for my $piece (@pieces) {
wait_screen_change { type_string($piece, %args); };
}
}
# high-level 'type this string quite safely but reasonably fast'
# function whose specific implementation may vary
sub type_safely {
my $string = shift;
check_type_string($string, max_interval => 20);
wait_still_screen 2;
}
# high-level 'type this string extremely safely and rather slow'
# function whose specific implementation may vary
sub type_very_safely {
my $string = shift;
check_type_string($string, size => 1, still => 5, max_interval => 1);
wait_still_screen 5;
}
# Figure out what tty the desktop is on, switch to it. Assumes we're
# at a root console
sub desktop_vt {
# use ps to find the tty of Xwayland or Xorg
my $xout;
# don't fail test if we don't find any process, just guess tty1
eval { $xout = script_output 'ps -C Xwayland,Xorg -o tty --no-headers'; };
my $tty = 1; # default
while ($xout =~ /tty(\d)/g) {
$tty = $1; # most recent match is probably best
}
send_key "ctrl-alt-f${tty}";
}
# Wait for login screen to appear. Handle the annoying GPU buffer
# problem where we see a stale copy of the login screen from the
# previous boot. Will suffer a ~30 second delay if there's a chance
# we're *already at* the expected login screen.
sub boot_to_login_screen {
my %args = @_;
$args{timeout} //= 300;
# we may start at a screen that matches one of the needles; if so,
# wait till we don't (e.g. when rebooting at end of live install,
# we match text_console_login until the console disappears)
my $count = 5;
while (check_screen("login_screen", 3) && $count > 0) {
sleep 5;
$count -= 1;
}
assert_screen "login_screen", $args{timeout};
if (match_has_tag "graphical_login") {
wait_still_screen 10, 30;
assert_screen "login_screen";
}
}