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* Added a regression test for whether the Nixpkgs channel works. This

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is done by instantiating a webserver that simulates nixos.org.
  Using nix-push we create a channel that contains some stuff (namely
  the GNU Hello source tarball and the rlwrap program).  This was a
  bit tricky because nix-push requires a writable Nix store.  Using
  AUFS this is possible, but not on recent Linux kernels (AUFS1 over
  CIFS fails).

svn path=/nixos/trunk/; revision=19327
This commit is contained in:
Eelco Dolstra 2010-01-10 01:26:01 +00:00
parent 79add5ecbc
commit 1a0bb65901
2 changed files with 81 additions and 21 deletions
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1
modules/installer/tools/nixos-install.sh
View file

@ -52,6 +52,7 @@ NIXOS=$(readlink -f "$NIXOS")
mkdir -m 0755 -p $mountPoint/etc
touch /etc/resolv.conf
cp /etc/resolv.conf $mountPoint/etc/
cp /etc/hosts $mountPoint/etc/
# Mount some stuff in the target root directory.
mkdir -m 0755 -p $mountPoint/dev $mountPoint/proc $mountPoint/sys $mountPoint/mnt

101
tests/installer.nix
View file

@ -1,5 +1,7 @@
{ pkgs, nixpkgs, system, ... }:
with pkgs.lib;
let
# Build the ISO. This is the regular installation CD but with test
@ -11,13 +13,12 @@ let
[ ../modules/installer/cd-dvd/installation-cd-graphical.nix
../modules/testing/test-instrumentation.nix
{ key = "serial";
boot.loader.grub.timeout = pkgs.lib.mkOverride 0 {} 0;
boot.loader.grub.timeout = mkOverride 0 {} 0;
# The test cannot access the network, so any sources we
# need must be included in the ISO.
isoImage.storeContents =
[ pkgs.hello.src
pkgs.glibcLocales
[ pkgs.glibcLocales
pkgs.sudo
pkgs.docbook5
];
@ -25,8 +26,9 @@ let
];
}).config.system.build.isoImage;
# The configuration to install.
config = { fileSystems }: pkgs.writeText "configuration.nix"
config = { fileSystems, testChannel }: pkgs.writeText "configuration.nix"
''
{ config, pkgs, modulesPath, ... }:
@ -39,12 +41,10 @@ let
boot.loader.grub.device = "/dev/vda";
boot.initrd.kernelModules = [ "ext3" ];
fileSystems =
[ ${fileSystems}
];
swapDevices =
[ { label = "swap"; } ];
fileSystems = [ ${fileSystems} ];
swapDevices = [ { label = "swap"; } ];
environment.systemPackages = [ ${optionalString testChannel "pkgs.rlwrap"} ];
}
'';
@ -62,20 +62,65 @@ let
}
'';
# Configuration of a web server that simulates the Nixpkgs channel
# distribution server.
webserver =
{ config, pkgs, ... }:
{ services.httpd.enable = true;
services.httpd.adminAddr = "foo@example.org";
services.httpd.servedDirs = singleton
{ urlPath = "/releases/nixpkgs/channels/nixpkgs-unstable";
dir = "/tmp/channel";
};
# Make the Nix store in this VM writable using AUFS. Use Linux
# 2.6.27 because 2.6.32 doesn't work (probably we need AUFS2).
# This should probably be moved to qemu-vm.nix.
boot.kernelPackages = pkgs.kernelPackages_2_6_27;
boot.extraModulePackages = [ config.boot.kernelPackages.aufs ];
boot.initrd.availableKernelModules = [ "aufs" ];
boot.initrd.postMountCommands =
''
mkdir /mnt-store-tmpfs
mount -t tmpfs -o "mode=755" none /mnt-store-tmpfs
mount -t aufs -o dirs=/mnt-store-tmpfs=rw:$targetRoot/nix/store=rr none $targetRoot/nix/store
'';
virtualisation.pathsInNixDB = channelContents;
};
channelContents = [ pkgs.hello.src pkgs.rlwrap ];
# The test script boots the CD, installs NixOS on an empty hard
# disk, and then reboot from the hard disk. It's parameterized with
# a test script fragment `createPartitions', which must create
# partitions and filesystems, and a configuration.nix fragment
# `fileSystems'.
testScriptFun = { createPartitions, fileSystems }:
testScriptFun = { createPartitions, fileSystems, testChannel }:
''
createDisk("harddisk", 4 * 1024);
my $machine = Machine->new({ hda => "harddisk", cdrom => glob("${iso}/iso/*.iso") });
$machine->start;
$machine->mustSucceed("echo hello");
${optionalString testChannel ''
# Create a channel on the web server containing a few packages
# to simulate the Nixpkgs channel.
$webserver->start;
$webserver->waitForJob("httpd");
$webserver->mustSucceed("mkdir /tmp/channel");
$webserver->mustSucceed(
"nix-push file:///tmp/channel " .
"http://nixos.org/releases/nixpkgs/channels/nixpkgs-unstable " .
"file:///tmp/channel/MANIFEST ${toString channelContents} >&2");
''}
# Make sure that we get a login prompt etc.
$machine->mustSucceed("echo hello");
$machine->waitForJob("tty1");
$machine->waitForJob("rogue");
$machine->waitForJob("nixos-manual");
@ -84,11 +129,20 @@ let
$machine->stopJob("dhclient");
$machine->mustSucceed("rm /etc/resolv.conf");
# Test nix-env.
$machine->mustFail("hello");
$machine->mustSucceed("nix-env -i hello");
$machine->mustSucceed("hello") =~ /Hello, world/
or die "bad `hello' output";
${optionalString testChannel ''
# Allow the machine to talk to the fake nixos.org.
$machine->mustSucceed(
"echo 192.168.1.1 nixos.org >> /etc/hosts",
"ifconfig eth1 up 192.168.1.2",
"nix-pull http://nixos.org/releases/nixpkgs/channels/nixpkgs-unstable/MANIFEST",
);
# Test nix-env.
$machine->mustFail("hello");
$machine->mustSucceed("nix-env -i hello");
$machine->mustSucceed("hello") =~ /Hello, world/
or die "bad `hello' output";
''}
# Partition the disk.
${createPartitions}
@ -103,7 +157,7 @@ let
print STDERR "Result of the hardware scan:\n$cfg\n";
$machine->copyFileFromHost(
"${ config { inherit fileSystems; } }",
"${ config { inherit fileSystems testChannel; } }",
"/mnt/etc/nixos/configuration.nix");
# Perform the installation.
@ -144,9 +198,13 @@ let
$machine->shutdown;
'';
makeTest = { createPartitions, fileSystems }:
makeTest = { createPartitions, fileSystems, testChannel ? false }:
{ inherit iso;
testScript = testScriptFun { inherit createPartitions fileSystems; };
nodes = if testChannel then { inherit webserver; } else { };
testScript = testScriptFun {
inherit createPartitions fileSystems testChannel;
};
};
@ -170,6 +228,7 @@ in {
);
'';
fileSystems = rootFS;
testChannel = true;
};
# Same as the previous, but now with a separate /boot partition.