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interactively on a network specification. For instance:
$ nix-build tests/ -A quake3.driver
$ ./result/bin/nixos-test-driver
> startAll;
client1: starting vm
client1: QEMU running (pid 14971)
server: starting vm
server: QEMU running (pid 14982)
...
> $client1->execute("quake3 ...");
* Use the GNU readline library in interactive mode.
svn path=/nixos/trunk/; revision=25156
84 lines
2.2 KiB
Perl
84 lines
2.2 KiB
Perl
#! @perl@ -w -I@libDir@ -I@readline@
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use strict;
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use Machine;
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use Term::ReadLine;
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$SIG{PIPE} = 'IGNORE'; # because Unix domain sockets may die unexpectedly
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$ENV{PATH} = "@extraPath@:$ENV{PATH}";
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STDERR->autoflush(1);
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my %vms;
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my $context = "";
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foreach my $vmScript (@ARGV) {
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my $vm = Machine->new({startCommand => $vmScript});
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$vms{$vm->name} = $vm;
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$context .= "my \$" . $vm->name . " = \$vms{'" . $vm->name . "'}; ";
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}
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sub startAll {
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$_->start foreach values %vms;
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}
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sub runTests {
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if (defined $ENV{tests}) {
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eval "$context $ENV{tests}";
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die $@ if $@;
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} else {
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my $term = Term::ReadLine->new('nixos-vm-test');
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$term->ReadHistory;
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while (defined ($_ = $term->readline("> "))) {
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eval "$context $_\n";
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warn $@ if $@;
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}
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$term->WriteHistory;
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}
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# Copy the kernel coverage data for each machine, if the kernel
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# has been compiled with coverage instrumentation.
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foreach my $vm (values %vms) {
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my $gcovDir = "/sys/kernel/debug/gcov";
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next unless $vm->isUp();
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my ($status, $out) = $vm->execute("test -e $gcovDir");
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next if $status != 0;
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# Figure out where to put the *.gcda files so that the report
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# generator can find the corresponding kernel sources.
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my $kernelDir = $vm->mustSucceed("echo \$(dirname \$(readlink -f /var/run/current-system/kernel))/.build/linux-*");
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chomp $kernelDir;
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my $coverageDir = "/hostfs" . $vm->stateDir() . "/coverage-data/$kernelDir";
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# Copy all the *.gcda files.
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$vm->execute("for d in $gcovDir/nix/store/*/.build/linux-*; do for i in \$(cd \$d && find -name '*.gcda'); do echo \$i; mkdir -p $coverageDir/\$(dirname \$i); cp -v \$d/\$i $coverageDir/\$i; done; done");
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}
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}
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# Create an empty qcow2 virtual disk with the given name and size (in
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# MiB).
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sub createDisk {
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my ($name, $size) = @_;
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system("qemu-img create -f qcow2 $name ${size}M") == 0
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or die "cannot create image of size $size";
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}
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END {
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foreach my $vm (values %vms) {
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if ($vm->{pid}) {
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print STDERR "killing ", $vm->{name}, " (pid ", $vm->{pid}, ")\n";
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kill 9, $vm->{pid};
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}
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}
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}
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runTests;
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