5bd7ea2aa3
to ensure that the subtests defined in tests/arion-test/default.nix do
not inadvertently re-use the arion-compose.nix, arion-pkgs.nix, etc. set
up during the _previous_ subtest.
Previously, each subtest attempted to clean itself up by doing
the following:
cd work && [...snip...] && rm -rf work
This removes the directory "work/work", while leaving "work" itself
intact. Subsequent subtests would then run:
cp -r ${../../examples/some-example} work
thereby copying the contents of "some-example" into "work/work" rather
than into "work".
As a result, all subtests but the first simply reapplied the Arion
configuration set up by the first subtest, because this configuration
persisted within the "work" directory used as the working directory for
"arion up", etc.
This commit corrects the issue by:
1. Removing "work" rather than "work/work", and
2. Adding certain flags to the "cp" invocation to ensure it reliably
copies files into "work" rather than "work/work": (a) "-f"
("--force"), to overwrite destination files if they already
exist, and (b) "-T" ("--no-target-directory") to copy the
*contents* of the source directory to "work" rather than copying
the source directory itself as a subdirectory of "work".
Additionally, this commit factors out code common to all subtests into a
reusable subtest generator coderef.
61 lines
2.4 KiB
Nix
61 lines
2.4 KiB
Nix
{ pkgs, ... }:
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let
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# To make some prebuilt derivations available in the vm
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preEval = modules: import ../../src/nix/eval-composition.nix {
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inherit modules;
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inherit pkgs;
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};
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in
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{
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name = "arion-test";
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machine = { pkgs, lib, ... }: {
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environment.systemPackages = [
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pkgs.arion
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];
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virtualisation.docker.enable = true;
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# no caches, because no internet
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nix.binaryCaches = lib.mkForce [];
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# FIXME: Sandbox seems broken with current version of NixOS test
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# w/ writable store. Error:
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# machine# error: linking '/nix/store/7r8z2zvhwda85pgpdn5hzzz6hs1njklc-stdenv-linux.drv.chroot/nix/store/6v3y7s4q4wd16hsw393gjpxvcf9159bv-patch-shebangs.sh' to '/nix/store/6v3y7s4q4wd16hsw393gjpxvcf9159bv-patch-shebangs.sh': Operation not permitted
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#
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# There should be no reason why arion can't run without
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# sandboxing, so please re-enable.
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nix.useSandbox = false;
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virtualisation.writableStore = true;
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virtualisation.pathsInNixDB = [
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# Pre-build the image because we don't want to build the world
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# in the vm.
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(preEval [ ../../examples/minimal/arion-compose.nix ]).config.out.dockerComposeYaml
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(preEval [ ../../examples/full-nixos/arion-compose.nix ]).config.out.dockerComposeYaml
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(preEval [ ../../examples/nixos-unit/arion-compose.nix ]).config.out.dockerComposeYaml
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pkgs.stdenv
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];
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};
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testScript = ''
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$machine->fail("curl localhost:8000");
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$machine->succeed("docker --version");
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my $makeSubtest = sub {
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my ( $subtestName, $exampleSrc, @codeRefs ) = @_;
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subtest $subtestName => sub {
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$machine->succeed("rm -rf work && cp -frT $exampleSrc work && cd work && NIX_PATH=nixpkgs='${pkgs.path}' arion up -d");
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$machine->waitUntilSucceeds("curl localhost:8000");
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$_->() for @codeRefs;
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$machine->succeed("cd work && NIX_PATH=nixpkgs='${pkgs.path}' arion down");
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$machine->waitUntilFails("curl localhost:8000");
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};
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};
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$makeSubtest->("minimal", "${../../examples/minimal}");
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$makeSubtest->("full-nixos", "${../../examples/full-nixos}", sub {
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$machine->succeed("cd work && export NIX_PATH=nixpkgs='${pkgs.path}' && (echo 'nix run -f ~/h/arion arion -c arion exec webserver'; echo 'target=world; echo Hello \$target'; echo exit) | script /dev/null | grep 'Hello world'");
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});
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$makeSubtest->("nixos-unit", "${../../examples/nixos-unit}");
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'';
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}
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