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* tests: install: Fix iso-image-installer test.Mathieu Othacehe2022-09-30
| | | | | | | | | | | This is a follow-up of: 45eac6cdf5c8d9d7b0c564b105c790d2d2007799. It fixes the following error: + mkfs.ext4 -L my-root /dev/vda2 sh: line 12: mkfs.ext4: command not found * gnu/tests/install.scm (%test-iso-image-installer): Add e2fsprogs to the appended packages.
* tests: telephony: Add missing import to fix jami tests.Maxim Cournoyer2022-09-26
| | | | | | | * gnu/tests/telephony.scm (run-jami-test): Add a missing (ice-9 match) import directive. Co-authored-by: Olivier Dion <olivier.dion@polymtl.ca>
* services: Add wsdd service.Simon Streit2022-09-24
| | | | | | | | | | | | * doc/guix.texi: Add documentation for wsdd service. * gnu/services/samba.scm (<wsdd-configuration>): New record. (wsdd-service-type): New variable. (wsdd-shepherd-services): New procedure. * gnu/tests/samba.scm (%wsdd-os): Add variable. (run-wsdd-test): New procedure. (%test-wsdd): New variable. Signed-off-by: Lars-Dominik Braun <lars@6xq.net>
* services: Add samba service.Simon Streit2022-09-24
| | | | | | | | | | * gnu/services/samba.scm: New file. * gnu/tests/samba.scm: New file. * gnu/local.mk (GNU_SYSTEM_MODULES): Add them. * po/guix/POTFILES.in Add 'gnu/services/samba.scm'. * doc/guix.texi: Document it. Signed-off-by: Lars-Dominik Braun <lars@6xq.net>
* Revert "tests: telephony: Add extra packages to %jami-os for debugging."Maxim Cournoyer2022-09-24
| | | | | This reverts commit 829c19142e62efa7ba9715fc682b4be959830b2e, as it broke 'guix pull'.
* tests: jami-provisioning: Fix test derivation name.Maxim Cournoyer2022-09-23
| | | | * gnu/tests/telephony.scm (run-jami-test): Fix test derivation name.
* tests: telephony: Add extra packages to %jami-os for debugging.Maxim Cournoyer2022-09-23
| | | | | | | * gnu/tests/telephony.scm (make-jami-os): Add libjami:debug, gdb, guile, guile-ac-d-bus, guile-readline, guile-fibers, screen and strace. (run-jami-test)<jami service actions, ban/unban contacts>: Add (ice-9 match), for lambda-match (worked without it but needed when manually testing).
* tests: dict: Increase VM memory-size.Mathieu Othacehe2022-09-08
| | | | * gnu/tests/dict.scm (run-dicod-test): Increase it to 1024 MiB.
* tests: image: New test.Mathieu Othacehe2022-08-30
| | | | | | | | | | Add a new image test module to validate the image creation itself. The images structures are validated using guile-parted. Checking the content of those images is out of scope and should be performed in other modules (installation for instance). * gnu/tests/image.scm: New file. * gnu/local.mk (GNU_SYSTEM_MODULES): Add it.
* gnu: Add missing copyright line.Marius Bakke2022-08-29
| | | | | | This is a follow-up to commit 3e0abde17be944153be57ab5faeefc645266d39d. * gnu/tests/virtualization.scm: Add copyright header for myself.
* tests: libvirt: Ensure the default network can be started.Marius Bakke2022-08-29
| | | | | * gnu/tests/virtualization.scm (run-libvirt-test): Run commands to create and start the default network.
* services: Add lightdm-service-type.Maxim Cournoyer2022-08-28
| | | | | | | | | | * gnu/services/lightdm.scm: New service. * tests/services/lightdm.scm: Test it. * doc/guix.texi (X Window): Document it. * gnu/local.mk (GNU_SYSTEM_MODULES): Register it. Co-authored-by: L p R n d n <guix@lprndn.info> Co-authored-by: Ricardo Wurmus <rekado@elephly.net>
* build: marionette: Add support for Tesseract OCR.Maxim Cournoyer2022-08-28
| | | | | | | | | | | * gnu/build/marionette.scm (invoke-ocrad-ocr): New procedure. (invoke-tesseract-ocr): Likewise. (marionette-screen-text): Rename the #:ocrad argument to #:ocr. Dispatch the matching OCR invocation procedure. (wait-for-screen-text): Rename the #:ocrad argument to #:ocr. * gnu/tests/base.scm (run-basic-test): Adjust accordingly. * gnu/tests/install.scm (enter-luks-passphrase): Likewise. (enter-luks-passphrase-for-home): Likewise.
* gnu: security: Add fail2ban-service-type.muradm2022-08-28
| | | | | | | | | * gnu/services/security.scm: New module. * gnu/tests/security.scm: New module. * gnu/local.mk: Add new security module and tests. * doc/guix.text: Add fail2ban-service-type documentation. Signed-off-by: Maxim Cournoyer <maxim.cournoyer@gmail.com>
* gnu: greetd-service-type: Add supplementary groups to greeter.muradm2022-08-26
| | | | | | | | | | | | | * gnu/services/base.scm (<greetd-configuration>) [greeter-supplementary-groups]: New field. (%greetd-accounts): Rename to... (greetd-accounts): ... this. Convert to a function that takes a config argument. Use greeter-supplementary-groups. (greetd-service-type): Adjust accordingly. * gnu/tests/desktop.scm (%minimal-services): Add test for greeter-supplementary-groups. * doc/guix.texi ("Base Services")[greetd-service-type]: Document greeter-supplementary-groups.
* gnu: seatd-service-type: Use seat group.muradm2022-08-26
| | | | | | | | | | | | | | | | * gnu/services/desktop.scm (seatd-group-sanitizer): New variable. (<seatd-configuration>)[user]: Removed field. [group]: Changed to "seat". Sanitize via seatd-group-sanitizer. (seatd-accounts): New variable. (seatd-environment): Adjust to <seatd-configuration> ABI. (seatd-service-type)[extensions]: Add account-service-type with seatd-accounts. * gnu/tests/desktop.scm (run-minimal-desktop-test): Check for correct ownership of $SEATD_SOCK. * doc/guix.texi ("Desktop Services")[seatd-service-type]: Mention that users may need to become members of the "seat" group. Update default value for group field. Add explanation on seatd.sock file. Remove dropped user field.
* tests: Add qemu-guest-agent system test.Timotej Lazar2022-08-09
| | | | | | | | | | | Enable the QEMU guest agent interface in marionette VMs, run the qemu-guest-agent service in one and try talking to it. * gnu/build/marionette.scm (make-marionette): Enable the guest agent device. * gnu/tests/virtualization.scm (run-qemu-guest-agent-test): New procedure. (%test-qemu-guest-agent): New variable. Signed-off-by: Ludovic Courtès <ludo@gnu.org>
* system: install: Always use 'current-guix'.Ludovic Courtès2022-08-09
| | | | | | | | | | | | | Fixes <https://issues.guix.gnu.org/53210>. Reported by Mathieu Othacehe <othacehe@gnu.org>. * gnu/system/install.scm (%installation-services): Set 'guix' to use (current-guix) in 'guix-configuration'. * gnu/system/examples/vm-image.tmpl: Likewise. * gnu/tests/install.scm (operating-system-with-current-guix): Remove. (run-install, installation-os-for-gui-tests): Remove its uses. * Makefile.am (release): Remove intermediate use of 'update-guix-package.scm' and subsequent 'git commit' invocation.
* gnu: telephony: Add a Jami test for a partially defined jami-account.Maxim Cournoyer2022-08-01
| | | | | | | | | | | * gnu/tests/telephony.scm (%dummy-jami-account-partial): New variable. (make-jami-os): Add a PARTIAL? argument and use it to select the jami-account variant to use. (%jami-os-provisioning-partial): New variable. (run-jami-test): Add a PARTIAL? argument, and use it to select operating system variant. Skip allowed-contacts and moderators test when PARTIAL? is true. (%test-jami-provisioning-partial): New test.
* gnu: tests: Fix guix-data-service test.Timotej Lazar2022-07-15
| | | | | | | | | | | | Since revision 32, guix-data-service starts immediately but returns an HTTP error code until initialization is complete. Adjust the test accordingly, and remove the increased startup time limit. * gnu/services/guix.scm (guix-data-service): Use default #:pid-file-timeout. * gnu/tests/guix.scm (guix-data-service): Retry the http-get test several times to give the service time to initialize. Signed-off-by: Christopher Baines <mail@cbaines.net>
* image: Add default value for partition initializer.Ludovic Courtès2022-07-01
| | | | | | | | | | | Previously, the default value would lead to a wrong-type-to-apply crash. * gnu/system/image.scm (system-disk-image)[image-builder]: When 'partition-initializer' returns #f, fall back to INITIALIZE-ROOT-PARTITION. * gnu/tests/base.scm (run-root-unmount-test)[test-image]: Remove 'initializer' field of partition. * gnu/image.scm (<partition>)[initializer]: Add comment.
* services: root-file-system: Cleanly unmount upon shutdown.Ludovic Courtès2022-07-01
| | | | | | | | | | | | Fixes <https://issues.guix.gnu.org/56209>. Reported by angry rectangle <angryrectangle@cock.li>. * gnu/packages/admin.scm (shepherd-0.9)[modules, snippet]: New fields. * gnu/services/base.scm (%root-file-system-shepherd-service): In 'stop' method, remove 'call-with-blocked-asyncs'. When 'mount' throws to 'system-error, call (@ (fibers) sleep) and try again. * gnu/tests/base.scm (run-root-unmount-test): New procedure. (%test-root-unmount): New variable.
* tests: ldap: Increase VM memory size.Timotej Lazar2022-06-24
| | | | | | | | | With the default limit of 512 MB the test sometimes fails, in different ways. Fixes https://issues.guix.gnu.org/55206. * gnu/tests/ldap.scm (run-ldap-test): Increase memory size to 1024 MiB. Signed-off-by: Mathieu Othacehe <othacehe@gnu.org>
* tests: docker: Relax marionette timeout.Maxim Cournoyer2022-06-24
| | | | | | | | The tests would otherwise fail on an old desktop. * gnu/tests/docker.scm (run-docker-test) <make-marionette>: Specify a timeout of 60 s. (run-docker-system-test) <make-marionette>: Likewise.
* gnu: tests: Add seatd/greetd based minimal desktop system tests.muradm2022-06-17
| | | | | | | * gnu/tests/desktop.scm (minimal-desktop): seatd/greetd based minimal desktop test Signed-off-by: Lars-Dominik Braun <ldb@leibniz-psychology.org>
* services: jami: Modernize to adjust to Shepherd 0.9+ changes.Maxim Cournoyer2022-06-10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This partially fixes <https://issues.guix.gnu.org/54786>, allowing the 'jami' and 'jami-provisioning' system tests to pass again. In version 0.9.0, Shepherd constructors are now run concurrently, via cooperative scheduling (Guile Fibers). The Jami service previously relied on blocking sleeps while polling for D-Bus services to become ready after forking a process; this wouldn't work anymore since while blocking the service process wouldn't be given the chance to finish starting. The new reliance on Fibers in Shepherd's fork+exec-command in the helper 'send-dbus' procedure also meant that it wouldn't work outside of Shepherd anymore. Finally, the 'start-service' Shepherd procedure used in the test suite would cause the Jami daemon to be spawned multiple times (a bug introduced in Shepherd 0.9.0). To fix/simplify these problems, this change does the following: 1. Use the Guile AC/D-Bus library for D-Bus communication, which simplify things, such as avoiding the need to fork 'dbus-send' processes. 2. The non-blocking 'sleep' version of Fiber is used for the 'with-retries' waiting syntax. 3. A 'dbus' package variant is used to adjust the session bus configuration, tailoring it for the use case at hand. 4. Avoid start-service in the tests, preferring 'jami-service-available?' for now. * gnu/build/jami-service.scm (parse-dbus-reply, strip-quotes) (deserialize-item, serialize-boolean, dbus-dict->alist) (dbus-array->list, parse-account-ids, parse-account-details) (parse-contacts): Delete procedures. (%send-dbus-binary, %send-dbus-bus, %send-dbus-user, %send-dbus-group) (%send-dbus-debug): Delete parameters. (jami-service-running?): New procedure. (send-dbus/configuration-manager): Rename to... (call-configuration-manager-method): ... this. Turn METHOD into a positional argument. Turn ARGUMENTS into an optional argument. Invoke `call-dbus-method' instead of `send-dbus', adjusting callers accordingly. (get-account-ids, id->account-details, id->account-details) (id->volatile-account-details, username->id, add-account remove-account) (username->contacts, remove-contact, add-contact, set-account-details) (set-all-moderators, username->all-moderators?, username->moderators) (set-moderator): Adjust accordingly. (with-retries, send-dbus, dbus-available-services) (dbus-service-available?): Move to ... * gnu/build/dbus-service.scm: ... this new module. (send-dbus): Rewrite to use the Guile AC/D-Bus library. (%dbus-query-timeout, sleep*): New variables. (%current-dbus-connection): New parameter. (initialize-dbus-connection!, argument->signature-type) (call-dbus-method): New procedures. (dbus-available-services): Adjust accordingly. * gnu/local.mk (GNU_SYSTEM_MODULES): Register new module. * gnu/packages/glib.scm (dbus-for-jami): New variable. * gnu/services/telephony.scm: (jami-configuration)[dbus]: Default to dbus-for-jami. (jami-dbus-session-activation): Write a D-Bus daemon configuration file at '/var/run/jami/session-local.conf'. (jami-shepherd-services): Add the closure of guile-ac-d-bus and guile-fibers as extensions. Adjust imported modules. Remove no longer used parameters. <jami-dbus-session>: Use a PID file, avoiding the need for the manual synchronization. <jami>: Set DBUS_SESSION_BUS_ADDRESS environment variable. Poll using 'jami-service-available?' instead of 'dbus-service-available?'. * gnu/tests/telephony.scm (run-jami-test): Add needed Guile extensions. Set DBUS_SESSION_BUS_ADDRESS environment variable. Adjust all tests to use 'jami-service-available?' to determine if the service is started rather than the now problematic Shepherd's 'start-service'.
* tests: childhurd: Make sure "guix build -d" works.Ludovic Courtès2022-06-05
| | | | | * gnu/tests/virtualization.scm (run-childhurd-test) ["guix-daemon up and running"]: New test.
* tests: childhurd: Generalize command execution over SSH.Ludovic Courtès2022-06-05
| | | | | | | * gnu/tests/virtualization.scm (run-childhurd-test)[run-uname-over-ssh]: Rename to... [run-command-over-ssh]: ... this. Add 'command' parameter and honor it. ["SSH up and running"]: Adjust accordingly.
* services: openssh: Listen on both IPv4 and IPv6.Ludovic Courtès2022-05-22
| | | | | | | | | | | | | Fixes <https://issues.guix.gnu.org/55335>. Reported by Christopher Baines <mail@cbaines.net>. * gnu/services/ssh.scm (openssh-shepherd-service)[inetd-style?]: New variable. <start>: Use it. When using 'make-inetd-constructor', pass a list of endpoints as is possible with the Shepherd 0.9.1. <stop>: Adjust accordingly. * gnu/tests/ssh.scm (run-ssh-test)["wait for port 22"]: Rename to... ["wait for port 22, IPv4"]: ... this. ["wait for port 22, IPv6"]: New test.
* services: bitlbee: Use 'make-inetd-constructor'.Ludovic Courtès2022-05-01
| | | | | | | * gnu/services/messaging.scm (bitlbee-shepherd-service): Add call to 'least-authority-wrapper'. In 'start' method, use 'make-inetd-constructor' when available. * gnu/tests/messaging.scm (run-bitlbee-test)["valid PID"]: Remove test.
* tests: Fix tailon test.Mathieu Othacehe2022-05-01
| | | | | | | | | This is a follow-up of 73eeeeafbb0765f76834b53c9fe6cf3c8f740840. * gnu/tests/web.scm (run-tailon-test): Wait for the TCP port 8080 instead of relying on start-service. Signed-off-by: Mathieu Othacehe <othacehe@gnu.org>
* tests: Avoid starting services to check whether they're running.Ludovic Courtès2022-04-29
| | | | | | | | | | | | | | | Fixes a regression introduced in the Shepherd 0.9.0 whereby clients can start a service that is already being started, leading to two instances of the process (and usually failure of the second attempt to start it). Partly fixes <https://issues.guix.gnu.org/54786>. Reported by Mathieu Othacehe. * gnu/tests/version-control.scm (run-cgit-test) ["nginx running", "fcgiwrap running"]: Wail for a file/TCP port instead of starting the service. (run-git-http-test)["nginx running"]: Likewise. (run-gitile-test)["nginx running"]: Likewise.
* tests: Add "encrypted-home-os" installation test.Ludovic Courtès2022-04-08
| | | | | | | * gnu/tests/install.scm (%encrypted-home-os) (%encrypted-home-installation-script) (enter-luks-passphrase-for-home) (%test-encrypted-home-os): New variables.
* services: openssh: Start as an inetd service.Ludovic Courtès2022-04-07
| | | | | | | | | | | * gnu/services/ssh.scm (openssh-shepherd-service): Use 'make-inetd-constructor' when it is defined. (<openssh-configuration>)[max-connections]: New field. * gnu/tests/ssh.scm (run-ssh-test)["sshd PID"]: Adjust to cope with PID-FILE being #f. * gnu/tests/ssh.scm (%test-openssh): Pass #f as the 'pid-file' argument. * doc/guix.texi (Networking Services): Document 'max-connections'.
* tests: install: Add two new Btrfs RAID10 install test.Maxim Cournoyer2022-03-19
| | | | | | | | * gnu/tests/install.scm (%btrfs-raid10-root-os) (%btrfs-raid10-root-os): New variables. (%btrfs-raid10-root-installation-script): Likewise. (%test-btrfs-raid10-root-images): Likewise. (%test-btrfs-raid10-root-os, %test-btrfs-raid10-root-os-degraded): New tests.
* tests: install: Enable the use of multiple disk devices for tests.Maxim Cournoyer2022-03-19
| | | | | | | | | | | | | | | | | | | | | | | | | * gnu/tests/install.scm (run-install)[packages]: Unconditionally add to OS. [NUMBER-OF-DISKS]: Add argument, update doc and adjust. The returned gexp output is now a list of images rather than the image itself. * gnu/tests/install.scm (qemu-command*): Rename IMAGE argument to IMAGES, to account for the above change. Adjust doc. Generate a QEMU '-drive' argument for each disk image. (%test-installed-os): Rename the IMAGE variable to IMAGES. (%test-installed-extlinux-os): Likewise. (%test-iso-image-installer): Likewise. (%test-separate-home-os): Likewise. (%test-separate-store-os): Likewise. (%test-raid-root-os): Likewise. (%test-encrypted-root-os): Likewise. (%test-lvm-separate-home-os): Likewise. (%test-encrypted-root-not-boot-os): Likewise. (%test-btrfs-root-os): Likewise. (%test-btrfs-raid-root-os): Likewise. (%test-btrfs-root-on-subvolume-os): Likewise. (%test-jfs-root-os): Likewise. (%test-f2fs-root-os): Likewise. (%test-xfs-root-os): Likewise. (guided-installation-test): Likewise.
* tests: install: Streamline 'qemu-command/writable-image'.Maxim Cournoyer2022-03-19
| | | | | | * gnu/tests/install.scm (qemu-command/writable-image): Replace the use of a writable backing file by the use of the '-snapshot' option, and rename to... (qemu-command*): ... this, adjusting all calls.
* tests: install: Adjust the timeouts on two failing tests.Maxim Cournoyer2022-03-19
| | | | | | | | The 'login on tty1' and 'getlogin on tty1' tests were failing on a machine equipped with slower hard drives. * gnu/tests/base.scm (run-basic-test) ["login on tty1", "getlogin on tty1"]: Bump timeout from 10 to 30 s.
* tests: nix: Remove tab characters.Mathieu Othacehe2022-02-21
| | | | * gnu/tests/package-management.scm: Remove them.
* tests: nix: Fix it.Mathieu Othacehe2022-02-21
| | | | | | | | | The <nix/config.nix> support has been removed in Nix 2.4: https://github.com/NixOS/nix/pull/4025. Rely on the store ping command instead to check that we can communicate with the daemon. * gnu/tests/package-management.scm (run-nix-test): Use the store ping command instead of building a dummy derivation.
* services: guix: Add nar-herder-service-type.Christopher Baines2022-01-31
| | | | | | | | | | | | | | | | | | | | | * gnu/services/guix.scm (<nar-herder-configuration>): New record type. (nar-herder-configuration, nar-herder-configuration?, nar-herder-configuration-package, nar-herder-configuration-user, nar-herder-configuration-group, nar-herder-configuration-mirror nar-herder-configuration-database nar-herder-configuration-database-dump nar-herder-configuration-host nar-herder-configuration-port nar-herder-configuration-storage nar-herder-configuration-storage-limit nar-herder-configuration-storage-nar-removal-criteria nar-herder-shepherd-services, nar-herder-activation, nar-herder-account): New procedures. (nar-herder-service-type): New variable. * gnu/tests/guix.scm (%test-nar-herder): New variable. * doc/guix.texi (Guix Services): Document the new service.
* tests: Add system test for TimescaleDB.Marius Bakke2022-01-29
| | | | | * gnu/tests/databases.scm (%timescaledb-os, run-timescaledb-test, %test-timescaledb): New variables.
* tests: postgresql: Test the default PostgreSQL.Marius Bakke2022-01-29
| | | | | * gnu/tests/databases.scm (%postgresql-os): Change from POSTGRESQL-10 to POSTGRESQL.
* services: Adjust the jami service for the upgraded jami.Maxim Cournoyer2022-01-13
| | | | | | | | | | | | * gnu/services/telephony.scm (jami-configuration)[jamid]: Rename libring to libjami. * gnu/services/telephony.scm (jami-configuration->command-line-arguments): Adjust daemon file name. * gnu/services/telephony.scm (jami-service-type): Adjust doc. * gnu/tests/telephony.scm (run-jami-test): Check for 'jamid' process, not 'dring'. * doc/guix.texi (Telephony Services): Adjust doc for the jami-qt to jami and libring to libjami packages renaming.
* installer: Recommend 'ntp-service-type' for non-graphical systems.Leo Famulari2021-12-28
| | | | | | | | | | | | | | | | We had several bug reports with a root cause of "the clock was incorrect" from users who used the installer to install a non-graphical Guix System. * gnu/installer/services.scm (%system-services): Add the ntp-service-type. * gnu/installer/newt/services.scm (run-system-administration-cbt-page): New variable. (run-services-page): Use run-system-administration-cbt-page when not installing a desktop. * gnu/installer/tests.scm (choose-services): Add and use a choose-misc-service? procedure. * gnu/tests/install.scm (installation-target-os-for-gui-tests)<services>: Add ntp-service-type.
* tests: rsync: Fix it.Mathieu Othacehe2021-12-23
| | | | | * gnu/tests/rsync.scm ("Test file not copied to read-only share"): This returns the error code 1 and not 10.
* tests: reconfigure: Fix it.Mathieu Othacehe2021-12-23
| | | | | * gnu/tests/reconfigure.scm (run-install-bootloader-test): Use a non volatile VM so that a bootloader configuration file is installed.
* tests: nfs: Fix nfs-root-fs test.Mathieu Othacehe2021-12-23
| | | | | | | | | | This test has probably never been working. Rename it nfs-full, and test that an NFS server can be started in a VM and mounted in another VM. * gnu/tests/nfs.scm (run-nfs-root-fs-test): Rename it ... (run-nfs-full-test): ... this way. (%test-nfs-root-fs): Rename it ... (%test-nfs-full): ... this way.
* tests: docker: Fix it.Mathieu Othacehe2021-12-23
| | | | | | | | | | | | The docker tests are broken because the docker overlay doesn't support running on our own storage overlay. Use the new <virtual-machine> volatile? field to spawn a VM with a persistent storage and no overlay. * gnu/tests/docker.scm (run-docker-test): Add the docker-tarball to the gc roots as the host store is not shared anymore. Spawn a VM without volatile storage. (run-docker-system-test): Ditto. (%test-docker-system): Adapt it to use the image API.
* Remove VM generation dead-code.Mathieu Othacehe2021-12-23
| | | | | | | | | | | | | | | This code duplicates the (gnu system image) and (gnu build image) code. Using VM for image generation is not needed, not portable and really slow. Remove all the VM image generation code to make sure that only the image API is used. * gnu/build/vm.scm: Remove it. Move the qemu-command procedure to ... * gnu/build/marionette.scm: ... here. * gnu/local.mk (GNU_SYSTEM_MODULES): Adapt it. * tests/modules.scm: Ditto. * gnu/tests/install.scm: Ditto. * gnu/system/vm.scm: Adapt it and remove expression->derivation-in-linux-vm, qemu-img, system-qemu-image/shared-store and system-docker-image procedures. * doc/guix.texi (G-Expressions): Adapt it.