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initialize test suite for git fetchers

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solves #9388

This utilizes nixos vm tests to allow:
- writing tests for fetchTree and fetchGit involving actual networking.
- writing small independent test cases by automating local and remote repository setup per test case.

This adds:
  - a gitea module setting up a gitea server
  - a setup module that simplifies writing test cases by automating the repo setup.
  - a simple git http test case

Other improvements:
For all nixos tests, add capability of overriding the nix version to test against.
This should make it easier to prevent regressions. If a new test is added it can simply be ran against any older nix version without having to backport the test.
For example, for running the container tests against nix 2.12.0:
`nix build "$(nix eval --raw .#hydraJobs.tests.containers --impure --apply 't: (t.forNix "2.12.0").drvPath')^*" -L`
This commit is contained in:
DavHau 2023-12-29 15:15:16 +07:00
parent 75d509eb08
commit 813c113b9e
4 changed files with 252 additions and 7 deletions
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30
tests/nixos/default.nix
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@ -5,14 +5,28 @@ let
nixos-lib = import (nixpkgs + "/nixos/lib") { };
# https://nixos.org/manual/nixos/unstable/index.html#sec-calling-nixos-tests
runNixOSTestFor = system: test: nixos-lib.runTest {
imports = [ test ];
hostPkgs = nixpkgsFor.${system}.native;
defaults = {
nixpkgs.pkgs = nixpkgsFor.${system}.native;
runNixOSTestFor = system: test:
(nixos-lib.runTest {
imports = [ test ];
hostPkgs = nixpkgsFor.${system}.native;
defaults = {
nixpkgs.pkgs = nixpkgsFor.${system}.native;
nix.checkAllErrors = false;
};
_module.args.nixpkgs = nixpkgs;
_module.args.system = system;
})
// {
# allow running tests against older nix versions via `nix eval --apply`
# Example:
# nix build "$(nix eval --raw --impure .#hydraJobs.tests.fetch-git --apply 't: (t.forNix "2.19.2").drvPath')^*"
forNix = nixVersion: runNixOSTestFor system {
imports = [test];
defaults.nixpkgs.overlays = [(curr: prev: {
nix = (builtins.getFlake "nix/${nixVersion}").packages.${system}.nix;
})];
};
};
_module.args.nixpkgs = nixpkgs;
};
in
@ -40,4 +54,6 @@ in
setuid = lib.genAttrs
["i686-linux" "x86_64-linux"]
(system: runNixOSTestFor system ./setuid.nix);
fetch-git = runNixOSTestFor "x86_64-linux" ./fetch-git;
}